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Articles for Waste Oil Management and Oily Water

In our blog, we write about best practices and trends related to waste oil management and oily water.
Learn more about them as we share them in our blog posts.

Oily Wastewater Disposal in Singapore: Things That You Need To Know!
Discover the importance of proper oily wastewater disposal. Click here to learn more about the sources, regulatory compliance in Singapore and many more. Read more
The Benefits of Used Cooking Oil Recycling for Your Business
Recycling has become a buzzword in the environmental industry. Oil is one of the most widely used commodities on the planet. Learn more about the benefits of recycling used oil here. Read more
Everything You Need To Know About Oil Analysis
Explore oil analysis benefits, process, advanced techniques, and future applications for optimized maintenance and cost savings. Click here to learn more. Read more
Benefits of Outsourcing Chemical Waste Management for Your Business
Discover the benefits of outsourcing chemical waste management for your business. From cost-effectiveness to environmental compliance, explore the advantages now! Read more
Industrial wastewater treatment
What is industrial wastewater treatment, and what does it entail? Read on to learn more. Read more
What Are The Different Types Of Chemical Waste And Its Management
What are the different types of chemical wastes available, and how are they managed? Read on to learn more. Read more
Acid & Alkaline Wastes Disposal in Singapore
What happens to chemical wastes once they’re gathered for treatment and disposal? Read on to learn more. Read more
Types of Alkali Waste
Discover Singapore regulated toxic waste disposal system which including alkaline waste. Ensure safe disposal with expert guidance. Click here to learn more. Read more
Different types of acid waste
Acid waste requires proper treatment and disposal. See if your business is creating these types of acid waste so you can prepare for its correct handling. Read more
Management of Acid Waste
Safely manage acid waste with sustainable practices. Reduce, recycle, and dispose responsibly to protect the environment and cut costs. Read more

Benefits of Outsourcing Chemical Waste Management for Your Business

July 11, 2023

Benefits of Outsourcing Chemical Waste Management for Your Business

Oily wastewater, often referred to as oily water, constitutes a mixture of water, oils, greases, and hydrocarbons. Originating primarily as a byproduct of industrial and commercial operations, this wastewater encompasses substances like motor oil, lubricants, and residual fuels. 

The responsible disposal of such oily wastewater is imperative to prevent environmental degradation and ensure the protection of human well-being. Incorrect disposal practices can result in water pollution, soil taint, and the degradation of aquatic ecosystems. 

 

Sources Of Oily Water

The world we inhabit is a delicate ecosystem where every action ripples across a vast interconnected network. In this intricate web, the sources of oily wastewater play a significant role, leaving an indelible mark on both our environment and daily lives.

 

Industrial and Manufacturing Activities

Industries drive economies, creating products that shape our world. However, this growth often comes at a cost – the generation of oily wastewater. From the manufacturing of electronics to textiles, industries rely on various substances, including lubricants and cutting fluids, which eventually mix with water to create oily wastewater. These complex concoctions of contaminants pose a challenge to responsible disposal.

 

Maritime and Port Operations

The maritime domain, with its bustling ports and maritime operations, is another significant contributor to oily wastewater. Vessels rely on lubricants, fuel, and hydraulic fluids to traverse the seas efficiently. Yet, as these vessels navigate, oily residue can find its way into the water. Moreover, ship maintenance activities further compound the issue, releasing waste oils that demand careful management.

 

Automotive and Vehicle Maintenance

Every time a vehicle takes to the road, it leaves behind traces of oils, grease, and fuel residues. While essential for smooth operation, these substances eventually find their way into stormwater runoff, which can contaminate water bodies. Additionally, vehicle maintenance activities, including oil changes and engine repairs, contribute to the generation of oily wastewater.

 

Other Potential Sources

Beyond these prominent sources, a spectrum of potential contributors exists. These might include small-scale commercial operations, workshops, and facilities that utilise oils and greases as part of their operations. As these sources combine forces, they create a complex challenge that demands comprehensive solutions.

 

Regulatory Framework for Oily Wastewater Disposal in Singapore

Singapore, a highly developed and environmentally conscious nation, places significant emphasis on regulating the disposal of oily wastewater to safeguard its water bodies and maintain ecological balance. With its limited water resources and commitment to sustainable practices, the city-state has established a comprehensive regulatory framework for the management and disposal of oily wastewater.

 

Main Regulatory Authorities

There are several regulatory authorities oversee different aspects of oily wastewater disposal in Singapore, and they are:

1. National Environment Agency (NEA)

The primary agency responsible for environmental protection in Singapore. They formulate and enforce regulations that are related to waste management, pollution control, and environmental sustainability.

2. Maritime and Port Authority of Singapore (MPA)

The MPA focuses on regulating maritime activities, including vessel operations and port activities. It enforces rules related to the discharge of oily water from ships and vessels.

 

Key Regulations and Compliance Measures

  1. The Environmental Protection and Management Act (EPMA)
    The cornerstone of Singapore's environmental governance, the Environmental Protection and Management Act (EPMA), was enacted in 1999. This act serves as a powerful tool for managing pollution, conserving resources, and regulating activities with environmental impact. The EPMA empowers regulatory authorities, such as the National Environment Agency (NEA), to enforce regulations related to waste management, pollution control, and environmental quality.

  2. Hazardous Waste (Control of Export, Import and Transit) Regulations
    This regulation oversees the import, export, and transit of hazardous waste, including oily wastewater. Permits are required for such movements, ensuring proper disposal and preventing the transboundary movement of hazardous waste.

  3. Merchant Shipping (Civil Liability and Compensation for Bunker Oil Pollution) Act
    This act places liability on shipowners and operators for oil pollution damage caused by their vessels. It ensures that shipowners have adequate insurance coverage to address potential pollution incidents.

 

Common Oily Wastewater Treatment and Separation Methods

1. Gravity Separation Techniques

Gravity separation techniques harness the force of gravity to separate substances based on their varying densities. In the context of oily wastewater treatment, these techniques focus on separating lighter oil droplets from the denser water matrix. This process relies on the fact that oil droplets have a lower density compared to water, causing them to rise to the surface when provided with the opportunity.

 

Types of Gravity Separation Techniques

There are several gravity separation techniques employed for oily wastewater treatment:

  1. API Separators (American Petroleum Institute): These separators consist of large tanks equipped with internal structures to facilitate oil-water separation. As wastewater flows through the tank, the oil rises to the surface due to its lower density, forming a distinct layer that can be skimmed off.
  2. Hydrocyclone Separators: Hydrocyclones utilise centrifugal forces to separate oil from water. Wastewater enters the hydrocyclone at high velocity, causing a rotational motion that pushes oil droplets towards the outer wall, where they can be collected.

 

Benefits

  • Efficiency: Gravity separation is a highly efficient method for removing oil droplets from water due to its reliance on natural forces.
  • Low Energy Consumption: These techniques require minimal energy input, making them cost-effective and environmentally friendly.
  • Complementary Approach: Gravity separation techniques can be integrated with other treatment methods to achieve comprehensive wastewater treatment.

 

2. Coalescing Plates and Skimmers

This technique relies on coalescence, where small oil droplets combine into larger ones. Coalescing plates offer an ideal surface for droplets to gather, rise due to their lower density, and eventually separate from the water for skimming.

 

Design and Operation

Coalescing plates feature closely spaced or corrugated surfaces creating narrow passages for oily wastewater flow. These passages foster the merging of small oil droplets into larger ones. Proper plate design and spacing are crucial for optimising coalescence efficiency.

In contrast, skimmers physically remove the floating oil layer from the water. They typically employ rotating drums or belts to collect oil, transferring it to a separate chamber.

 

Benefits

Coalescing plates and skimmers offer numerous benefits in oily wastewater treatment:

  • Enhanced Efficiency: The coalescence mechanism allows for the efficient removal of smaller oil droplets, leading to higher treatment efficiency.
  • Compact Design: These mechanisms are often compact and require minimal space, making them suitable for various industrial settings.
  • Low Energy Consumption: Coalescing plates and skimmers operate with minimal energy consumption, contributing to cost-effective treatment solutions.

 

3. Dissolved Air Flotation (DAF) Systems

These systems work based on air solubility. The process starts by saturating oily wastewater with air under high pressure. When this air-saturated water is released into a flotation tank, the reduced pressure makes the dissolved air form tiny bubbles. These microbubbles adhere to oil droplets, solids, and contaminants, causing them to rise to the surface.

A skimming mechanism removes the floated material from the water, leaving clarified water with less oil content. DAF system efficiency depends on factors like bubble size, detention time, and tank design.

 

Benefits 

DAF systems offer several benefits that make them an attractive choice for oily wastewater treatment:

  • Effective Oil Removal: These systems excel at removing small oil droplets and suspended solids from wastewater.
  • Enhanced Clarification: The system not only removes oil and contaminants but also clarifies water, resulting in improved water quality.
  • Low Chemical Usage: While coagulants and flocculants can be used in conjunction with the system, the process itself requires relatively fewer chemicals compared to other treatment methods.

 

On-Site Oily Wastewater Management

On-site oily wastewater management is a critical aspect of maintaining environmental sustainability and regulatory compliance for industries that generate oily water as a byproduct of their operations. Industries such as manufacturing, automotive, mining, and oil and gas production often generate significant amounts of oily wastewater, which requires proper treatment and disposal to prevent environmental contamination.

 

Utilisation of Oil-Water Separators and Clarifiers

Oil-water separators and clarifiers are vital tools in the effective treatment of oily wastewater. These devices work by utilising the differences in density between oil and water to separate and remove oil particles from the water. The separation process involves three main stages: inlet, separation, and outlet.

  • Inlet Stage: Inflowing oily wastewater is introduced into the separator or clarifier. At this stage, the water may contain a mixture of free oil, emulsified oil, and suspended solids.
  • Separation Stage: Once inside the device, the wastewater undergoes a process of settling. Due to the varying densities, oil rises to the surface as a distinct layer, while heavier solids settle at the bottom. Treated water occupies the middle layer.
  • Outlet Stage: The treated water, located in the middle layer, is carefully collected and extracted from the system. It has undergone a significant reduction in oil and solid content.

 

Best practices for utilising oil-water separators and clarifiers include

  • Maintenance Routine
    Develop a regular maintenance schedule that includes cleaning, inspection, and parts replacement. Neglecting maintenance can lead to reduced performance and potential system failures.

  • Monitoring and Adjustments
    Install monitoring systems to track the performance of the separator or clarifier. If the oil content in the treated water exceeds permissible levels, adjustments should be made promptly.

  • Operator Training
    Properly train personnel responsible for operating and maintaining the equipment. This ensures safe and effective usage while minimising errors.

  • Chemical Treatment
    Depending on the type of oily wastewater, chemical additives may enhance separation efficiency. However, please consult with experts first to determine the appropriate chemicals and dosages before you do anything!

 

Proper Handling and Storage of Oily Water

Improper handling and storage of oily water can lead to spills, leaks, and contamination of the surrounding environment. Best practices for handling and storing oily water include:

  • Containment: Store oily water in designated containers that are properly sealed to prevent leaks and spills.
  • Segregation: Keep oily water containers away from other hazardous materials to avoid cross-contamination.
  • Regular Inspection: Inspect containers and storage areas regularly for signs of deterioration, leaks, or other issues that could compromise containment.

 

Preventive Maintenance of Equipment

Regular maintenance of oil-water separators, clarifiers, and other related equipment is essential to ensure their continued functionality and longevity. Preventive maintenance practices include:

  • Scheduled Inspections: Establish a routine inspection schedule to identify and address any wear and tear, corrosion, or mechanical issues.

  • Cleaning and Calibration: Regularly clean the equipment to prevent buildup of oil, solids, and debris. Calibrate instruments and sensors for accurate readings.

  • Replacement of Parts: Replace worn-out or damaged parts promptly to prevent breakdowns and maintain efficient operation.

  • Staff Training: Train personnel in proper equipment operation, maintenance procedures, and safety protocols to ensure effective and safe maintenance practices.

 

Off-Site Oily Wastewater Disposal Options

Industries that generate oily wastewater are faced with the responsibility of managing this waste efficiently and in an environmentally sound manner. Off-site disposal options offer effective solutions to ensure that oily wastewater is treated, disposed of, or repurposed responsibly.

 

Collaboration with Licensed Waste Management Companies

Collaborating with licensed waste management companies such as GreenTec Energy is a common approach to off-site disposal of oily wastewater. These companies specialise in collecting, treating, and disposing of hazardous and non-hazardous wastes, ensuring compliance with regulatory standards. Key benefits of this approach include:

  • Expertise: Licensed waste management companies have the expertise and resources to handle oily wastewater safely and efficiently.

  • Regulatory Compliance: These companies are well-versed in the complex regulations surrounding waste disposal, reducing the risk of non-compliance.

  • Tracking and Documentation: Collaboration with licensed companies ensures proper tracking, documentation, and reporting of the disposal process, contributing to transparency and accountability.

 

Recycling and Reuse of Treated Oily Water

Treated oily water can often be recycled and reused within certain industrial processes, reducing both waste generation and water consumption. This approach has several advantages:

  • Resource Conservation: Recycling treated oily water conserves freshwater resources by substituting treated water for raw water in industrial operations.
  • Cost Savings: Reusing treated water reduces the need for purchasing and treating additional water, leading to cost savings.
  • Environmental Benefits: Recycling water reduces the overall environmental impact by decreasing the demand for natural water sources.

 

Ship-to-Shore Oily Water Disposal Facilities

Industries located near water bodies, such as ports or coastal areas, can make use of ship-to-shore oily water disposal facilities. These facilities provide ships with the means to offload their oily wastewater for proper treatment and disposal on land. Key advantages include:

  • Preventing Marine Pollution: Ship-to-shore facilities prevent the discharge of untreated or minimally treated oily water into water bodies, minimising marine pollution.
  • Regulatory Compliance: These facilities ensure that vessels comply with regulations that prohibit the discharge of oily wastewater beyond certain limits.

 

Challenges and Solutions in Oily Wastewater Disposal

Effectively managing oily wastewater disposal presents industries with various challenges, from regulatory compliance to sustainable practices. However, these challenges also come with opportunities for innovative solutions.

 

Ensuring Compliance with Environmental Regulations

Challenge: Meeting stringent environmental regulations and standards for oily wastewater disposal is a primary concern. Non-compliance can result in penalties, reputational damage, and harm to ecosystems.

Solution: Developing a robust regulatory compliance strategy involves understanding and staying updated on relevant regulations. This includes thorough documentation, regular monitoring, and implementing best practices to prevent violations. Collaborating with regulatory bodies can foster a better understanding of expectations.

 

Managing High-Volume Oily Water from Industrial Sources

Challenge: Industries with high production volumes often face the challenge of efficiently managing and disposing of large quantities of oily wastewater.

Solution: Implementing on-site treatment systems, such as oil-water separators and clarifiers, can help manage high-volume oily water at its source. These systems can significantly reduce the volume of oil and solids in wastewater, making it more manageable for off-site disposal.

 

Awareness and Training for Proper Disposal Practices

Challenge: Insufficient awareness and training among employees regarding proper oily wastewater disposal practices can lead to mistakes and non-compliance.

Solution: Conduct regular training sessions for employees involved in handling oily wastewater. Training should cover proper disposal procedures, the importance of regulatory compliance, and the environmental impact of improper disposal. Employee awareness campaigns can foster a culture of responsible waste management.

 

Cost-effective and Sustainable Disposal Solutions

Challenge: Balancing cost-effectiveness with sustainable disposal practices can be challenging, as some eco-friendly options may be more expensive.

Solution: Seek innovative ways to offset costs, such as exploring recycling and reuse options for treated water. Investigate waste-to-energy technologies that can generate energy while minimising waste. Collaborate with waste management companies to find mutually beneficial solutions.

 

Conclusion

In conclusion, oily wastewater management is an urgent environmental challenge across industries, originating from sources like industry, maritime activities, and vehicle maintenance. Singapore's strong regulations led by the NEA and MPA enforce responsible disposal.

Effective methods, like gravity separation and dissolved air flotation, remove oil. Chemical treatments, filtration, and emulsion breakers enhance separation. On-site management with oil-water separators is crucial.

Feel free to contact us if you're looking for expert assistance in implementing these strategies and ensuring responsible oily wastewater management for your business.

GreenTec Energy Waste Management FacilitiesGreenTec Energy Pte Ltd (GTE) is a waste management company located in Tuas, Singapore.


Our service includes Industrial waste, Oily waste, Marine waste.

To provide a hassle free solution to our customer is always the key approach and to ensure a win-win situation towards. As a NEA approved environmental company in Singapore, we take all our services seriously and to ensure maximum safety with compliances applied. Every step of our disposal processes are also designed to meet NEA & SCDF requirements, with latest treatment facilities and laboratories to test and treat all incoming waste before disposal.

GTE operates a total land area of about 100,000sqft at 14 Tuas South Street 12 Singapore 636953. With our comprehensive logistics and transportation fleet, we provide prompt and efficient services in transportation of waste to our premises.

Benefits of Outsourcing Chemical Waste Management for Your Business

July 11, 2023

Benefits of Outsourcing Chemical Waste Management for Your Business

Kitchens at restaurants use cooking oil in large quantities on a daily basis. However, once chefs have finished preparing the meals, the leftover oil is sometimes carelessly poured down the sink in the kitchen. Pouring cooking oil down the drain can cause many problems in the long run. Therefore, restaurant owners are urged to recycle their used cooking oil rather than dispose of them irresponsibly down the drain or anywhere else that’s not supposed to.

To get you started, here are ten benefits of recycling used cooking oil:

 

1. Prevents clogged kitchen pipes

As a busy business owner of a bustling restaurant, the last thing you need would be a congested plumbing system that interferes with your kitchen operations. Cooking oil residue will gradually clog or damage pipes when it is poured down the drain. Over time, the oil will solidify, expand, and cause pesky obstructions that can be costly to remove.

The easiest way to avoid plumbing obstructions is to arrange regular used cooking oil pickups with a reliable used cooking oil collecting company for recycling. Using expert services to dispose of used cooking oil properly helps stop the waste from clogging the pipes in the kitchen in the first place. 

 

2. Protect local sewer lines

When you choose to recycle your used oil, your restaurant's plumbing system is immediately safeguarded from costly damages. In addition to that, the sewer lines in your neighbourhood area will also be protected. When used cooking oil is poured down sewer pipes, drainage is obstructed, resulting in sewer damage that cannot be repaired and water overflowing into the streets.

 

3. Create renewable energy source

With today’s modern innovation, leftover cooking oil can be transformed into biodiesel and be reused by all. Biodiesel fuels, a renewable substitute for petroleum-based diesel fuels, are used in diesel engines to power machinery, heat buildings, and power cars. Most biodiesel fuels are made from used cooking oil and soybean oil. By recycling your used cooking oil, you will also become an innovator of renewable energy sources in Singapore!

 

4. Reduce greenhouse gas emissions

The ozone layer, which shields the earth from the sun's ultraviolet (UV) rays, is seriously threatened by greenhouse gases like carbon dioxide and methane. Another negative effect of greenhouse gas emissions is global warming and climate change – which we all have started to experience in recent years. 

Biodiesel fuels can be produced by recycling used cooking oil. Because they are clean, biodiesel fuels reduce pollution. Utilising biodiesel fuels also reduces carbon dioxide emissions. In fact, biodiesel fuels can reduce greenhouse gas emissions from cars and other machinery by up to 90 per cent. Imagine what you can do for the environment by just recycling your used cooking oil!

 

5. Reduces reliance on oil imports

Restaurants that recycle their used cooking oil help reduce the nation's reliance on imported oil. Dependence on local biodiesel resources lessens possible risks to the country's economic health and national security, particularly in the event of an oil embargo.

 

6. Reduces repair cost

As previously said, recycling used cooking oil will keep the plumbing in the kitchen from being damaged. An additional advantage is that engaging an oil collection and recycling company to dispose of cooking oil properly will save you money by avoiding the cost of fixing a broken or clogged pipe.


7. Adherence to local law

In several countries in the world, it's against the law to pour used cooking oil down the drain. In some countries, breaking the rules on the disposal of used cooking oil can result in hefty fines or even jail time. To comply with local laws, you must engage the service of a certified used oil collecting company to ensure that your waste oil is disposed of properly.


8. Maintains a sterling reputation

A restaurant's reputation may suffer if they are caught dumping 30 to 50 gallons of wasted cooking oil down a sewer drain. After this video of a fast food restaurant employee pouring used cooking oil down a storm drain went viral, other restaurants came under fire for their waste oil disposal policy. Likewise, your restaurant's reputation will not be tarnished if oil waste disposal standards are followed.

 

9. Supports local economy

By engaging in local used oil collecting services, restaurants will help this business generate revenue for their company. Engaging with local service providers will also help build up the local economy because more than half of every $100 spent with local businesses stays in the area.

 

10. Creates new job opportunities

Large-scale cooking oil recycling generates additional revenue that not only stays in the area but also aids in creating new jobs in the domains of engineering, technology, accounting, marketing, and training—additionally, surplus revenue act as a stimulant for local enterprises in growing sectors.

 

Conclusion

Restaurant owners who support the recycling and proper collection of used cooking oil are indeed responsible business owners. To get started, restaurant businesses can arrange to pick up used cooking oil with a reputable waste oil collection company. If you’re still hesitating, consult the building control department and the Singapore Environment Council (SEC) for information on properly disposing of cooking oil.

Prior to collection, place the storage containers containing used cooking oil away from the sewer drain to avoid spills or leaks into the sewage system. Utilise airtight containers to control bad smells and prevent vermin infestations in the restaurant. It also helps to use and empty the grease trap regularly.

Employees should be trained and instructed not to pour used cooking oil into the kitchen sink or the storm drain. In your staff handbook, include procedures for handling used cooking oil properly. Collaborate with a business that collects wasted cooking oil, like HCH Corp Singapore. Need more info about our waste oil collection services at HCH Corp? Please don’t hesitate to contact us here.

GreenTec Energy Waste Management FacilitiesGreenTec Energy Pte Ltd (GTE) is a waste management company located in Tuas, Singapore.


Our service includes Industrial waste, Oily waste, Marine waste.

To provide a hassle free solution to our customer is always the key approach and to ensure a win-win situation towards. As a NEA approved environmental company in Singapore, we take all our services seriously and to ensure maximum safety with compliances applied. Every step of our disposal processes are also designed to meet NEA & SCDF requirements, with latest treatment facilities and laboratories to test and treat all incoming waste before disposal.

GTE operates a total land area of about 100,000sqft at 14 Tuas South Street 12 Singapore 636953. With our comprehensive logistics and transportation fleet, we provide prompt and efficient services in transportation of waste to our premises.

Benefits of Outsourcing Chemical Waste Management for Your Business

July 11, 2023

Benefits of Outsourcing Chemical Waste Management for Your Business

Oil analysis is a powerful diagnostic tool that has revolutionized the maintenance and reliability practices across various industries. It provides valuable insights into the condition of lubricating oil, machinery health, and overall equipment performance. This article will explore the fundamentals of oil analysis, its benefits, the process and how it can be applied in different sectors to optimize maintenance practices and enhance operational efficiency.

 

1. Understanding Oil Analysis

Oil analysis, also known as lubricant or fluid analysis, is the process of examining the physical, chemical, and performance properties of lubricating oil. It involves collecting oil samples from machinery or equipment, subjecting them to a battery of laboratory tests, and analyzing the results to evaluate the oil's condition, detect potential issues, and make informed maintenance decisions.

Close Up Water Rings Yellow Pool Surface

 

2. Why Perform Oil Analysis

Performing oil analysis is crucial for various industries and applications as it provides valuable insights into the condition and performance of lubricating oils. By analyzing the physical and chemical properties of the oil, as well as detecting any contaminants, wear metals, or additives present, oil analysis helps identify potential issues such as equipment wear, contamination, or inadequate lubrication. It enables maintenance personnel to make informed decisions about oil changes, equipment maintenance, and overall system performance, ultimately optimizing equipment reliability, reducing downtime, extending oil life, and minimizing costly repairs or failures.

 

3. Importance of Oil Analysis

  • Machinery Condition Monitoring: Oil analysis plays a crucial role in monitoring the health of machinery. Analyzing the oil makes it possible to detect early signs of wear, contamination, or abnormal conditions within the equipment. This allows maintenance teams to address potential problems before they escalate, minimizing the risk of unexpected breakdowns, optimizing maintenance schedules, and extending the equipment's lifespan.

  • Preventive Maintenance Optimization: Oil analysis is invaluable for implementing effective preventive maintenance programs. By regularly monitoring the condition of the oil, maintenance professionals can determine the optimal time for maintenance activities, such as lubricant changes, component replacements, or adjustments. This proactive approach minimizes downtime, reduces maintenance costs, and maximizes equipment availability and reliability.

  • Contamination Detection: Contaminants such as dirt, metal particles, water, and fuel can enter the oil system, adversely affecting equipment performance. Oil analysis identifies the presence of contaminants and determines their type and concentration. Detecting high levels of contaminants helps identify potential sources of ingress, such as faulty seals or filters, allowing for timely corrective actions to be taken.

  • Fluid Performance Evaluation: Oil analysis provides insights into the performance characteristics of lubricating oil, such as viscosity, acidity, oxidation, and additive depletion. By monitoring these parameters, maintenance professionals can assess the oil's ability to protect against wear, resist thermal breakdown, and maintain optimal lubrication. This information enables them to make data-driven decisions regarding lubricant selection, oil change intervals, and overall maintenance strategies.

  • Equipment Health Trend Analysis: Regularly analyzing oil samples over time can identify patterns and trends, offering valuable insights into equipment health and performance. Trend analysis helps identify gradual changes or abnormalities in oil properties, allowing maintenance teams to take proactive measures, such as adjusting maintenance practices, identifying potential equipment faults, or planning for equipment upgrades or replacements.

Test Tube Chemistry Flask Against Hydroblock ACP With Yellow Liquid

 

4. Oil Analysis Process

The oil analysis process typically involves the following steps:

 

Sample Collection

Representative oil samples are collected from the equipment using specialized sampling techniques and tools. It is important to follow proper sampling procedures to ensure accurate and reliable results.

Laboratory analysis

At the laboratory, trained technicians perform various tests and analyses on the oil sample to evaluate its properties and characteristics. The specific tests conducted may vary depending on the objectives of the analysis, but common tests include:

  • Visually inspect the oil for colour, clarity, and the presence of contaminants like metal particles or water.
  • Determining basic oil properties such as viscosity, acidity, and oxidation level.
  • Particle counting to assess the level of contamination or wear debris in the oil.
  • Spectroscopic analysis, such as elemental analysis (inductively coupled plasma-atomic emission spectroscopy) or infrared spectroscopy, to identify and quantify the presence of various elements or compounds.
  • Ferrography or microscopic examination to study the morphology and composition of wear particles.
  • Additional specialized tests may be performed based on specific requirements or known issues with the equipment.

 

Data interpretation and reporting

Once the analysis is complete, the laboratory generates a detailed report summarising the findings and providing recommendations. The report typically includes the test results, deviations from normal values, trend analysis, and suggestions for maintenance or corrective actions if needed. Some laboratories may also provide online portals or software tools to easily access results and trends.

 

Review and action

Maintenance personnel or reliability engineers are responsible for the equipment review of the oil analysis report. They interpret the findings in the context of the equipment's operational conditions and determine appropriate actions. These actions may include changing the oil, further investigation or inspection, equipment maintenance or repairs, or adjustments to the lubrication program.

 

Trend analysis

Oil analysis is most effective when conducted regularly and tracked over time. By comparing the results of multiple samples taken at different intervals, trends can be identified, and potential issues can be detected early. Trend analysis helps in establishing baseline values, evaluating the effectiveness of maintenance actions, and predicting future performance or failures.

 

5. Integrating Oil Analysis into Waste Management Practices

To maximize the benefits of oil analysis, waste management companies should integrate it into their overall maintenance and asset management strategies. This involves regular sampling, establishing baseline data, tracking trends, and establishing thresholds for different equipment types. By leveraging oil analysis alongside other maintenance techniques, companies can achieve higher operational efficiency and minimize costly downtime.

 

6. Advanced Techniques in Oil Analysis

  • Wear Particle Analysis: Waste management companies can incorporate wear particle analysis in addition to standard oil analysis parameters. This technique involves examining microscopic wear particles in oil samples to identify the specific components and sources of wear. By analyzing wear patterns, companies can gain insights into the condition of critical components and detect early signs of impending failures.

  • Spectroscopy: Spectroscopic analysis techniques, such as infrared (IR) spectroscopy and RDE-Optical Emission Spectroscopy, provide detailed information about the chemical composition of oil samples. These techniques can detect contaminants, degradation by-products, and additive depletion, enabling waste management companies to identify potential issues affecting lubricant performance.

  • Fluid Cleanliness Analysis: Fluid cleanliness analysis focuses on assessing the level of contamination in oil samples. Through techniques like particle counting and gravimetric analysis, waste management companies can evaluate the presence of solid contaminants, water, or other impurities that may compromise equipment performance and reliability.


7. The Future of Oil Analysis in Waste Management Company

As technology continues to advance, the oil analysis field is also evolving. Waste management companies can explore innovative solutions such as remote monitoring, real-time analysis, and predictive analytics to further optimize their maintenance practices.

  • Remote Monitoring: Advancements in sensor technology allow for remote monitoring of oil properties, enabling real-time data collection and analysis. Waste management companies can leverage remote monitoring systems to continuously track the health of their equipment, receive instant alerts for abnormal conditions, and make proactive maintenance decisions.

  • Real-time Analysis: Integrating oil analysis with real-time monitoring systems provides waste management companies with immediate insights into the condition of their machinery. The real-time analysis allows for prompt detection of anomalies, enabling rapid response and minimizing the risk of equipment failure or environmental hazards.

  • Predictive Analytics: By combining oil analysis data with predictive analytics algorithms, waste management companies can forecast equipment performance and anticipate maintenance needs. Predictive analytics models can identify patterns, detect emerging issues, and provide recommendations for optimizing maintenance schedules, resulting in improved asset reliability and reduced downtime.


8. Cost Savings and Return on Investment

  • Reduced Maintenance Costs: Waste management companies can reduce their overall maintenance costs by implementing an effective oil analysis program. Proactive maintenance based on oil analysis results helps avoid costly breakdowns, minimize emergency repairs, and optimize the use of maintenance resources.

  • Extended Equipment Life: The ability to detect and address potential issues early through oil analysis can significantly extend the life cycle of waste management equipment. This translates into cost savings by delaying the need for capital investments in new machinery and maximizing the value of existing assets.

  • Energy Efficiency and Operational Savings: Properly lubricated equipment operates more efficiently, leading to energy savings and reduced operational costs. By maintaining the right lubricant properties through oil analysis, waste management companies can optimize equipment performance, reduce friction, and lower energy consumption.

 

Conclusion

Oil analysis is a powerful tool for waste management companies, enabling them to monitor the health and performance of their equipment and optimize their operations. 

At GTE, we are certified in Regular Oil Analysis and Testing such as fluid properties, contamination, and presence of debris. Our laboratory analyses fuel oil for Density Flash Point, Water by Distillation, Sediment by Extraction, and Kinematic Viscosity. Get in touch with us to learn more about oil analysis.

GreenTec Energy Waste Management FacilitiesGreenTec Energy Pte Ltd (GTE) is a waste management company located in Tuas, Singapore.


Our service includes Industrial waste, Oily waste, Marine waste.

To provide a hassle free solution to our customer is always the key approach and to ensure a win-win situation towards. As a NEA approved environmental company in Singapore, we take all our services seriously and to ensure maximum safety with compliances applied. Every step of our disposal processes are also designed to meet NEA & SCDF requirements, with latest treatment facilities and laboratories to test and treat all incoming waste before disposal.

GTE operates a total land area of about 100,000sqft at 14 Tuas South Street 12 Singapore 636953. With our comprehensive logistics and transportation fleet, we provide prompt and efficient services in transportation of waste to our premises.

Benefits of Outsourcing Chemical Waste Management for Your Business

July 11, 2023

Benefits of Outsourcing Chemical Waste Management for Your Business

Chemical wastes fall into four management categories: hazardous waste, non-hazardous waste, universal waste, and waste safe for sink or trash disposal. 

 

Hazardous Waste

Chemicals that display "hazardous" traits must be handled as hazardous waste. Hazardous wastes are subject to environmental regulation because they pose the highest risk to human health or the environment. Errors in managing hazardous waste can result in harsh environmental fines and enforcement actions.

Use the phrase "hazardous waste" only to refer to chemicals. Unless combined with chemical wastes, infectious or radioactive wastes are not considered "hazardous wastes". The safest method of managing chemical waste is to collect and treat them as hazardous waste, guaranteeing the highest level of environmental protection.

 

Non-hazardous Waste

A chemical that does not meet the criteria for state or federal hazards and is not labelled as "hazardous waste" may not be suitable for disposal down the drain or in ordinary trash.

In some instances, going above and beyond hazardous waste standards is necessary for environmental protection. Ethidium bromide is one such instance; although it doesn't officially possess any hazardous properties, it is unsafe to handle as typical waste. Other instances include substances like nanoparticles, for which thorough safety data is still lacking. 

As a result of our ignorance of the potential harm these items could pose to the environment, the precautionary principle frequently requires that we collect them.

A different regulation may mandate waste chemical collection under other circumstances. Very low quantities would serve as an illustration. Mercury at a level (parts per billion) in generally safe reagents. Despite the minimal level of contamination, mercury discharge down sink drains is prohibited.

Some requirements for managing hazardous waste do not apply when a chemical is collected as non-hazardous waste.

 

Universal Waste

Due to their widespread use, a small fraction of chemical wastes has undergone some deregulation. Although management restrictions still exist, they are not as strict as those governing hazardous waste.

Universal wastes include:

  • Fluorescent bulbs
  • Batteries of various types
  • Devices containing mercury, such as switches and thermostats

 

Wastes Safe For Sink And Or Trash Disposal

Only a very small portion of chemical wastes are unregulated and okay to dispose of in the trash or in sinks. Some examples are benign salts like sodium chloride and non-toxic, non-corrosive cleaning agents.

 

Management Of Hazardous Wastes

The most important question to answer when handling chemical waste is, "Does my chemical waste need to be collected and managed as hazardous waste?" Knowing the answer to this question is necessary for the first step in a process known as "forming a waste determination," which is crucial in handling chemical waste.

You need knowledge of the qualities and behaviour of the chemical to decide whether it has to be collected as hazardous waste. Never presume chemical waste may be disposed of safely in the garbage, down a sink, or drain. The safest and most responsible way to collect chemical waste is to avoid caution and manage it as hazardous.

If the chemical waste has any of the four characteristics given below, or if it is specifically mentioned in the laws, it must be identified as hazardous waste and managed accordingly.

 

Ignitable Characteristic

Liquid Chemicals

The ignitable chemical wastes are hazardous if the liquid chemical's flash point is equivalent to 60 degrees Celsius.

Examples of these wastes include: 

  • Alcohols (note: for ethanol, mixtures greater than or equal to 20 per cent are considered hazardous wastes. For other alcohols, the cut-off is 10 per cent)
  • Organic Solvents and mixtures containing organic solvents, such as xylenes, hexane, toluene, acetone, and others
  • Stains and mixtures containing stains (because stains are solvent-based)
  • Oil-based paints and coatings

 

Solid Chemicals

Hazardous solid chemicals are those that, when lit, burn vigorously and are capable of igniting a fire under conditions of normal temperature and pressure due to friction, moisture absorption, or spontaneous chemical changes.

Examples include:

  • Paraformaldehyde
  • Paraffin wax with xylene
  • Rags saturated with an ignitable liquid

 

Compressed Gas 

Hazardous ignitable compressed gas generally comprises partially-full or left-over cylinders of gas.

Examples include:

  • Hydrogen
  • Acetylene
  • Propane
  • Butane

 

Oxidisers

Oxidisers are chemicals that are capable of enhancing the combustion of other materials, generally by yielding oxygen.

Examples of these include:

  • Chlorates
  • Chlorites
  • Nitrates
  • Perchlorates
  • Perchlorites
  • Permanganates
  • Peroxides

You must treat chemical waste as an ignitable hazardous waste if it demonstrates any of the aforementioned "ignitable" qualities.

 

Corrosive Characteristics

A hazardous waste is corrosive when:

  • It is a liquid that corrodes steel (Type SAE 1020) at a rate greater than 6.35 mm (about 0.250 inch) per year, or
  • is aqueous, has a pH of less than or equal to 2, or greater than or equal to 12.5.

Examples of these include:

  • Hydrochloric Acid
  • Sulfuric Acid
  • Nitric Acid
  • Sodium Hydroxide

 

Reactive Characteristic

According to the definition; a reactive hazardous waste is something that:

  • Under normal conditions, it is unstable and capable of undergoing severe changes without exploding.
  • Reacts aggressively with water (examples include Sodium metal, Anhydrides and Sodium Borohydride)
  • Reacts aggressively with air (examples include tert-butyllithium)
  • Capable of violent explosion or detonation (examples include dry picric acid, Azide compounds, organic peroxides, old ether or tetrahydrofuran with peroxide formation)
  • A cyanide or sulphide that releases hazardous vapours, fumes, or gases when exposed to a pH of between 2 and 12.5 (examples include Sodium cyanide, Potassium cyanide, Sodium sulfide and Carbon disulfide)

Toxic Characteristic

When it comes to designating specific substances, the laws start with the harmful "characteristic". Regardless of concentration, garbage containing any of the substances on this list should generally be collected for disposal since even if it isn't technically hazardous waste, it shouldn't be released into the environment.

More info can be found in the Management of Hazardous Waste information paper.

 

Conclusion

There are specific ways of handling chemical waste based on the type of waste (hazardous, non-hazardous, universal waste and safe for sink/trash disposal) and the type of hazardous wastes (ignitable, corrosive, reactive, toxic or oxidisers) that they are.

As we’ve mentioned earlier, it’s best to be cautious when disposing of chemical wastes. If you aren’t sure which waste is which, don’t hesitate to get in touch with us to know more.

GreenTec Energy Waste Management FacilitiesGreenTec Energy Pte Ltd (GTE) is a waste management company located in Tuas, Singapore.


Our service includes Industrial waste, Oily waste, Marine waste.

To provide a hassle free solution to our customer is always the key approach and to ensure a win-win situation towards. As a NEA approved environmental company in Singapore, we take all our services seriously and to ensure maximum safety with compliances applied. Every step of our disposal processes are also designed to meet NEA & SCDF requirements, with latest treatment facilities and laboratories to test and treat all incoming waste before disposal.

GTE operates a total land area of about 100,000sqft at 14 Tuas South Street 12 Singapore 636953. With our comprehensive logistics and transportation fleet, we provide prompt and efficient services in transportation of waste to our premises.

Benefits of Outsourcing Chemical Waste Management for Your Business

July 11, 2023

Benefits of Outsourcing Chemical Waste Management for Your Business

Industrial wastewater treatment is the process used to handle wastewater created as an undesired byproduct of industry. After treatment, the industrial wastewater (or effluent) might be recycled or dumped into the environment’s surface water or sanitary sewer. Some industrial facilities’ effluent can be treated at sewage treatment facilities.

Most industrial processes, including chemical and petrochemical plants, petroleum refineries, and chemical and petrochemical plants, have their own specialised facilities for treating their wastewater, so that pollutant concentrations meet the requirements for wastewater disposal into sewers, oceans, rivers and lakes.. 

This holds true for businesses that generate wastewater with high amounts of nutrients, hazardous contaminants, such as heavy metals and volatile organic compounds, or organic materials (like oil and grease) (e.g., ammonia). Before releasing the partially treated trash, some businesses utilise a pre-treatment system to remove some impurities (such as toxic compounds).

The step-by-step processes used in industrial wastewater treatment are as follows:

 

Step 1: Screening & pumping

In this first step, screening equipment filters out oil, plastics, wood chips, and other items from the incoming wastewater. Before being dumped in a landfill, the removed material is cleaned and compressed. The screened wastewater is then subjected to the grit removal stage.

 

Step 2: Grit removal

In this stage, sand, gravel, and other heavy but fine materials are removed from the effluent. A landfill is also used to dispose of this garbage.

 

Step 3: Chemical addition

In this stage, the wastewater is cleaned using biological or chemical processes with chemical additives. Then, as sewage deposits decompose and emit gases like hydrogen sulphide, chemical treatments are applied to oxidise the gases and lessen their bad odours.

 

Step 4: Coagulation & flocculation 

To remove turbidity or murkiness from the water, chemicals are used to treat wastewater during the coagulation and flocculation process. This process allows water to be sterilised more quickly and helps enhance the water’s flavour and odour. To produce larger, denser particles known as floc, a coagulant is typically added to the wastewater to bind smaller particles together.

 

Step 5: Sedimentation & clarification

Gravity helps heavier particles (produced during the coagulation and flocculation stage) fall to the bottom of the sedimentation basin during the sedimentation process, where they may be removed more easily. Water moves slowly through, giving the floc time to settle and land at the bottom of the basin for simple removal. The clarified water can reach the filtration stage above it.

 

Step 6: Filtration

Any lingering particles or undesired organic materials from wastewater are removed during the filtration process. During this stage, the water is processed through a fine, sand-like substance or carbon granules. Only pure water can pass through because the carbon retains undesirable particles.

 

Step 7: Disinfection

UV disinfection is used to ensure the treated wastewater is almost bacteria-free after the filtration stage. Any remaining germs are eliminated during the UV treatment procedure, which puts us back in compliance with our discharge permit.

 

Step 8: Aeration

To raise the dissolved oxygen content to an acceptable level, the treated water may need to be aerated. The treated water is then released into the river through the effluent outfall.

 

Step 9: Analysis testing

After the aeration process, the treated water will be analysed to check its parameters whether they reached an acceptable level.

 

Step 10: Effluent disposal

To reduce volume and produce a usable end product, the waste-activated sludge from step 8 and the main sludge pushed from the bottom of the primary clarifiers must be treated.

Once the dissolved oxygen content in the treated water has reached an acceptable level, the effluent is ready for disposal.

 

Conclusion

The steps for treating industrial wastewater described above help clean wastewater from industrial use. You may efficiently use these processes to purify your water by learning the general principles of industrial water treatment. Get in touch with us here to learn more about industrial wastewater treatment.

GreenTec Energy Waste Management FacilitiesGreenTec Energy Pte Ltd (GTE) is a waste management company located in Tuas, Singapore.


Our service includes Industrial waste, Oily waste, Marine waste.

To provide a hassle free solution to our customer is always the key approach and to ensure a win-win situation towards. As a NEA approved environmental company in Singapore, we take all our services seriously and to ensure maximum safety with compliances applied. Every step of our disposal processes are also designed to meet NEA & SCDF requirements, with latest treatment facilities and laboratories to test and treat all incoming waste before disposal.

GTE operates a total land area of about 100,000sqft at 14 Tuas South Street 12 Singapore 636953. With our comprehensive logistics and transportation fleet, we provide prompt and efficient services in transportation of waste to our premises.

Acid & Alkaline Wastes Disposal in Singapore

July 11, 2023

Benefits of Outsourcing Chemical Waste Management for Your Business

At GreenTec Energy Singapore, we assist our clients in the aviation, metal galvanising, and semiconductor industries in sustainably disposing of their liquid chemical waste. Waste acids, alkalis, plating solutions, waste water and other liquid chemical waste can all be safely processed for disposal by our company.

We take the liquid chemical waste from our clients and handle them safely at every step, from collection and neutralisation to disposal and incineration, because chemical waste is dangerous if it leaks into the environment.

In this article, we will discuss more about acid and alkaline wastes and how we process them through neutralisation before discharging the neutralised water into the Public sewer.

 

What are acid and alkaline wastes?

Before we look at the processes involved in the neutralisation and disposal of acid and alkaline waste, let’s first find out what are classified as acid and alkaline wastes.

Based on pH, it is possible to establish whether a solution is acidic or alkaline. The pH scale ranges from 0 to 14 – acidic aqueous solutions at 25 °C have a pH under 7, while alkaline aqueous solutions have a pH above 7. pH level of 7.0 at 25°C is referred to as ‘neutral’. A very strong acid may have a pH below 1, while strong bases may have a pH beyond 14. Therefore, acid and alkaline wastes are defined as chemical wastes with a pH value of less than 6.0 (acid) or greater than 9.0 (alkali), or solid chemical wastes that would attain such values when mixed with water.

 

Sources of acid and alkali wastes

Many different industries produce acid and alkali wastes. In Singapore, some of these industries include semiconductor manufacturing, aviation and metal galvanising industries. Wastes for disposal tend to be materials contaminated as a result of the process.

In some instances, some chemicals may be disposed of as a result of spillage or off-specification production. In general, acid and alkaline wastes are contaminated with other chemicals, which are often dilutely dispersed in large bodies of water. 

Industries likely to generate significant quantities of acid and alkaline waste include:

  • Dairy factories
  • Freezing works
  • Industrial cleaning
  • Laundries
  • Chemical industry
  • Soap/detergent manufacturers and more.

 

These industries may produce acid or alkaline wastes as mixes or contaminated with other pollutants, which would necessitate a more complicated treatment.

Now that we know what defines acid and alkaline wastes as well as their main sources. Let’s take a look at the steps taken to process the acid and alkaline wastes before they are safely disposed of.

 

Step 1: Waste collection

At the client's location, we start by gathering liquid chemical waste and deposited them into an ISOtank unit or an Intermediate Bulk Container (IBC) or a drum/ carboy/ pail.

All our transporting vehicles are equipped with the required Hazard Communication (HazCom) labels. Additionally, all our field personnel are Hazmat trained, well-trained in professional safety procedures and have the necessary protective gear and equipment to handle and transport such hazardous waste.

 

Step 2: Lab analysis & lab analysis

Once the waste arrives at our facility, it will be weighed and each collection's sample is taken to our in-house laboratory to be tested. This enables our in-house chemist to do a treatability study for each incoming liquid waste.

Our process engineer will then work with our production team, based on the lab results. The crew will also make sure that all wastes are safely stored in the interim before production starts.

 

Step 3: Neutralisation of waste acid & alkaline wastes

A supply of alkaline liquid is required to counteract the very acidic wastewater from a cation resin regeneration. The effluent from an anion resin regeneration, which is typically done concurrently, is alkaline. The pH of these two wastewater streams is ‘neutralised’ and approaches 7 when combined. If the combined liquids' pH does not fall within the range that is suitable for discharge, further acid or alkaline must be added to bring the pH within the permissible range.

Typically, the chemicals used to replenish the resins in ion exchange systems are the same compounds used to modify the effluent. The finished mixture then passes through a filter press. The solid precipitate is separated from the neutralised water through this apparatus.

After the neutralisation step, the neutralised wastewater (pH 6.0-8.0) can now be safely discharged. The PUB safe discharge limit is between pH 6.0 to 9.0.

 

Step 4: Precipitation & incineration of solid waste

Following the neutralisation process, the precipitation process will then separate the solids from the liquid. In the last step, the solids will be disposed of by our third-party partner through incineration.

 

Conclusion

At GTE, we take pride in ensuring that we do our part in keeping the environment safe through proper waste disposal. If you have any questions regarding liquid chemical waste disposal, be it chemical, waste oil or a mix of waste water, get in touch with us for more information.

hch infographic

GreenTec Energy Waste Management FacilitiesGreenTec Energy Pte Ltd (GTE) is a waste management company located in Tuas, Singapore.


Our service includes Industrial waste, Oily waste, Marine waste.

To provide a hassle free solution to our customer is always the key approach and to ensure a win-win situation towards. As a NEA approved environmental company in Singapore, we take all our services seriously and to ensure maximum safety with compliances applied. Every step of our disposal processes are also designed to meet NEA & SCDF requirements, with latest treatment facilities and laboratories to test and treat all incoming waste before disposal.

GTE operates a total land area of about 100,000sqft at 14 Tuas South Street 12 Singapore 636953. With our comprehensive logistics and transportation fleet, we provide prompt and efficient services in transportation of waste to our premises.

Benefits of Outsourcing Chemical Waste Management for Your Business

July 11, 2023

Benefits of Outsourcing Chemical Waste Management for Your Business

Types of Alkali Waste

Much like every other country in the world, Singapore has a regulated system for waste disposal, especially when it comes to toxic materials produced as an industrial output. Due to the small land size and limited resources, efficient methods and categorisation is crucial in effectively managing the appropriate treatments. There are many categories considered as toxic waste, and alkali waste is one of them.

Generated denoted by their pH level of seven or above, alkali waste are potentially corrosive in nature to a number of materials (including human tissue), and if not handled properly can lead to disastrous pollution and damage. Alkali can react strongly if accidentally mixed with acids, and if leaked into the environment, can produce significant heat when mixed with water.

This is why the “Management of Toxic Industrial Wastes in Singapore” guide by National Environmental Agency (NEW) has strict measures to contain such substances and states, “Toxic industrial wastes are wastes which by their nature and quality may be potentially detrimental to human health and/or the environment and which require special management, treatment and disposal”.

Some of the more common industries that produce alkali waste include: Steel production, alumina refining, petrochemical plants and coal-fired power generation.

In Singapore, the National Environment Agency (NEA) has advisories on the handling of alkali waste, and lists five types in their guiding documents: Spent alkaline solutions, spent ammoniacal solutions, metal hydroxide sludges and oxide sludges, antimony and its compounds, and spent antimony potassium tartrate.

Other types of chemicals and compounds frequently encountered and produced by industries and are considered alkali waste include: Waste ammonia, waste sodium hydroxide, waste potassium hydroxide, waste calcium hydroxide and waste amines.

As with its close cousin - acid wastes - proper disposal of alkali waste includes treatment via neutralisation and effective containment. Extreme care must be used when handling the disposal process so as to properly every stage adheres to local standards and regulations, and maintains the safety of personnel involved in the tasks.

With the right expertise, alkali waste can be disposed of with minimal environmental impact. One should always consult with local authorities on the measures needed to create the disposal system, or speak to waste treatment experts to discover sustainable methods or finetune their processes.

Manage your alkali waste safely and sustainably with GTE.

GreenTec Energy Waste Management FacilitiesGreenTec Energy Pte Ltd (GTE) is a waste management company located in Tuas, Singapore.


Our service includes Industrial waste, Oily waste, Marine waste.

To provide a hassle free solution to our customer is always the key approach and to ensure a win-win situation towards. As a NEA approved environmental company in Singapore, we take all our services seriously and to ensure maximum safety with compliances applied. Every step of our disposal processes are also designed to meet NEA & SCDF requirements, with latest treatment facilities and laboratories to test and treat all incoming waste before disposal.

GTE operates a total land area of about 100,000sqft at 14 Tuas South Street 12 Singapore 636953. With our comprehensive logistics and transportation fleet, we provide prompt and efficient services in transportation of waste to our premises.

Benefits of Outsourcing Chemical Waste Management for Your Business

July 11, 2023

toxic waste management
Worker wearing protection equipment and gas mask working in chemicals production factory disposing biohazard waste.

Types of Acid Waste

Not all wastes are created equal, and acid waste in particular, can be tricky to handle. Although acid can be found across all sources of waste from commercial, domestic to industrial, it is with the latter-most that proper acid waste disposal is most concerning.

Acid waste is generally considered to have a pH level less than 6. Their potentially corrosive nature and high environmental impact makes them generally considered to be toxic waste globally.

As cited by the “Management of Toxic Industrial Wastes in Singapore” guide by National Environmental Agency (NEA), “Toxic industrial wastes are wastes which by their nature and quality may be potentially detrimental to human health and/or the environment and which require special management, treatment and disposal”.

The acid wastes are broadly broken up into two categories: Spent inorganic acids and spent organic acids.

 

Spent inorganic acids

Also known as mineral acids, these acid wastes are derived from one or more inorganic compounds. Often made in laboratories, cleaning and heavy industries, these tend to be highly corrosive and soluble in water, which makes them terrible polluters and can cause near-immediate and discernible changes in the environment and its people.

In Singapore, these include hydrochloric acid, sulphuric acid, nitric acid, phosphoric acid, hydrofluoric acid, boric acid and pickling acid. Some of these (like sulphuric acid and nitric acid) are commonly associated with agriculture waste from the production of fertilisers, while others (like pickling acid) are used more to condition and treat metals during the manufacturing process.

While manufacturing is not as significant of an industry locally, it is important to note that the small and dense land mass makes any careless disposal of acid waste in this category particularly dangerous.

 

Spent organic acids

Often seen as the less toxic of the two, organic acids come from organic compounds that bear acidic properties within them. Usually weaker and not as soluble in water, organic acids have a lesser chance of causing grave damage as acid waste.

Singapore considers acetic acid, formic acid, benzoic acid and sulphonic acid as under this category. Acetic acid can come from pharmaceutical and pesticidal companies, formic acid can arise from paper and leather treatment workshops, and benzoic is an extremely common output from manufacturers of food preservatives, medicines, dyes, and plasticisers.

Always consult with local legal authorities to audit the waste generation and disposal process, and pay attention to toxic wastes such as acids to ensure compliance with local laws to protect the environment and public health.

 

Manage your acid waste safely and sustainably with GTE.

 

 

 

 

 

GreenTec Energy Waste Management FacilitiesGreenTec Energy Pte Ltd (GTE) is a waste management company located in Tuas, Singapore.


Our service includes Industrial waste, Oily waste, Marine waste.

To provide a hassle free solution to our customer is always the key approach and to ensure a win-win situation towards. As a NEA approved environmental company in Singapore, we take all our services seriously and to ensure maximum safety with compliances applied. Every step of our disposal processes are also designed to meet NEA & SCDF requirements, with latest treatment facilities and laboratories to test and treat all incoming waste before disposal.

GTE operates a total land area of about 100,000sqft at 14 Tuas South Street 12 Singapore 636953. With our comprehensive logistics and transportation fleet, we provide prompt and efficient services in transportation of waste to our premises.

Benefits of Outsourcing Chemical Waste Management for Your Business

July 11, 2023

toxic waste management
Worker wearing protection equipment and gas mask working in chemicals production factory disposing biohazard waste.

Acid waste resulting from industrial processes is classified as hazardous waste materials. Given the potential to chemically degrade or destroy materials that they come into contact with, acid waste poses dangers to humans and the environment .

As such, acid waste management must be taken seriously so as to properly manage and dispose of these materials, in accordance with prevailing environmental regulations.

Note that besides acid waste, alkali waste can also have corrosive effects that are just as harmful. Hence, a proper acid waste management plan should encompass both acid and alkali waste materials.

In Singapore, the following waste materials are considered hazardous, and require proper handling, management and disposal.

 

Acid wastes

Spent inorganic acids.

Eg. hydrochloric acid, sulphuric acid,

nitric acid, phosphoric acid,

hydrofluoric acid, boric acid and

pickling acid.

Spent organic acids.

Eg. acetic acid, formic acid, benzoic

acid and sulphonic acid

Alkali wastes

Spent alkaline solutions

Spent ammoniacal solutions

Metal hydroxide sludges and oxide sludges

Spent antimony potassium tartrate

 

Like all other waste management processes, acid waste management can and should be carried out in a sustainable manner. This will not only help to protect the environment, but also help companies reduce costs and overheads.

Here are three ways companies can achieve higher sustainability when managing acid and alkali wastes.

 

1. Reduction and Waste Exchange

If there is less waste produced, there are less hazardous materials to manage. Therefore, companies should examine how they can reduce the rate at which acid or alkali waste is generated in the course of business.

Lowering the amount of corrosive waste produced can create higher-than-expected savings. This is because acid and alkali waste require treatment to render them safe for disposal, and these costs can add up over time.

Another way to reduce the amount of acid waste requiring disposal is through waste exchange. The idea is that waste material generated by one company could be a useful resource in another company, so both parties can benefit from an exchange.

For instance, waste alkali generated by one company could be used by another company to neutralize acid waste, or in various other applications.

The NEA coordinates between different industries for exchange of acid and alkali waste, with the overall aim of minimising the ultimate quantity of industrial waste to be disposed of.

 

2. Recycling

While we term them acid or alkali waste, some of these materials can be recycled, or contain components such as metals that can be recovered and put to future use. Thus, acid waste management that incorporates recycling can help to give caustic waste materials a second lease of life.

Some examples of recycling in acid waste management include:

  • Turning spent hydrochloric acid and calcium hydroxide sludge into calcium chloride, which can then be sold to pharmaceutical, agricultural, construction, and petrochemical industries
  • Using distillation to recover acids or alkalis from dilutes
  • Using steam distillation to recover nitric acid water mixture from nitric acid-containing wastes
  • Using ion exchange to rejuvenate and remove metals from metal-contaminated weak acid or alkali wastes

 

3. Safe Disposal

Besides waste reduction and recycling, another important way companies can improve sustainability in their acid waste management process is to ensure safe disposal.

What this means is that the entire journey – from handling and storage, to transport and ultimate disposal – should be managed so as to minimise or eliminate risks and mistakes that could cause damage or harm to people and the environment.

The requirements for safe and proper disposal will differ on a case-by-case basis, as it depends on the type of acid or caustic waste that requires disposal.

It may be worthwhile to work with a certified expert to design an acid waste management process that is custom-fit to your sector or needs.

 

GTE is an NEA-approved company specialising in alkali and acid waste management for a variety of industries. Contact us today for your acid waste management needs!

 

 

 

 

 

GreenTec Energy Waste Management FacilitiesGreenTec Energy Pte Ltd (GTE) is a waste management company located in Tuas, Singapore.


Our service includes Industrial waste, Oily waste, Marine waste.

To provide a hassle free solution to our customer is always the key approach and to ensure a win-win situation towards. As a NEA approved environmental company in Singapore, we take all our services seriously and to ensure maximum safety with compliances applied. Every step of our disposal processes are also designed to meet NEA & SCDF requirements, with latest treatment facilities and laboratories to test and treat all incoming waste before disposal.

GTE operates a total land area of about 100,000sqft at 14 Tuas South Street 12 Singapore 636953. With our comprehensive logistics and transportation fleet, we provide prompt and efficient services in transportation of waste to our premises.