Stormwater filtration system for electrical transformer

A stormwater filtration system for electrical transformers plays a crucial role in preventing pollution and helps prevent oil-polluted water from being discharged into the environment. These systems are designed to capture and treat runoff water from transformer stations, removing contaminants such as hydrocarbons before they reach natural waterways. Electrical substations, industrial facilities, and renewable energy sites increasingly rely on efficient stormwater management to meet environmental regulations and ensure sustainable operations.

Why stormwater filtration is essential

Stormwater runoff can carry pollutants from industrial sites, roads, and electrical substations into local water bodies, leading to environmental contamination and regulatory non-compliance. Effective stormwater filtration systems help to:

Prevent pollution: with an oleophilic and hydrophobic polymer that permanently absorbs the hydrocarbons.
Ensure regulatory compliance: meet strict environmental protection standards.
Protect natural waterways: reduce the impact of industrial and urban runoff on ecosystems.

The role of transformer bunds in stormwater management

Transformer bunds are essential containment structures designed to retain leaks and spills from electrical transformers. They act as the first line of defense against oil contamination, ensuring that pollutants are captured before they enter the stormwater filtration system. Properly designed bunds, in combination with efficient filtration solutions like those offered by Akhelec, significantly reduce environmental risks and improve regulatory compliance.

Regulatory compliance

Stormwater management regulations for electrical transformers vary by country, but they all emphasize environmental protection and pollution prevention.

United States: The Environmental Protection Agency (EPA) enforces the Clean Water Act (CWA), which prohibits the discharge of oil-contaminated water into natural water sources. Electrical substations must use containment bunds and filtration systems to comply with the Spill Prevention, Control, and Countermeasure (SPCC) regulations.
Australia: The Environmental Protection Authority (EPA) in various states mandates the containment and treatment of stormwater runoff to prevent hydrocarbon pollution. Transformer sites are required to implement bunded areas and stormwater treatment systems to safeguard water quality.
United Kingdom: The Environment Agency (EA) enforces the Water Resources Act and the Oil Storage Regulations, requiring secondary containment (bunds) and oil-water separators to prevent pollution from transformer oil leaks.

In all these regions, companies must ensure that contaminated stormwater is not discharged into the environment. The use of containment bunds under transformers to collect rainwater mixed with oil, followed by advanced filtration systems like those provided by Akhelec, is essential for compliance and environmental protection.

Stormwater filtration solutions by Akhelec

Akhelec specializes in advanced environmental protection solutions, offering innovative stormwater filtration systems designed for electrical transformer stations and industrial applications. Their solutions include:

1. F5 and F15 eco-design stormwater filters

Akhelec’s F5 and F15 filters are designed to remove hydrocarbons and pollutants from rainwater collected in containment bunds beneath transformers. They use an oleophilic and hydrophobic polymer that permanently absorbs hydrocarbons while allowing clean water to pass through. These filters guarantee a contamination level of discharged rainwater <5 mg per litre.

F5 Filter: handles low-flow applications with a filtration capacity of up to 5 liters per minute.
F15 Filter: suitable for moderate flow rates of up to 15 liters per minute and available in screw or seal-type configurations.

2. F-ULTIME high-capacity rainwater filter

For transformer stations requiring large-scale filtration, Akhelec’s F-ULTIME filter is a high-capacity system designed for heavy-duty applications.

With a flow rate of up to 1500 liters per minute, it effectively removes hydrocarbons and suspended pollutants and guarantee a post-filter rainwater contamination of <5 mg per litre.

Ensuring compliance with stringent environmental regulations for electrical infrastructures.

3. Holybag® mobile solution for transformer oil leaks

The Holybag is a mobile pollution prevention system designed to address transformer oil leaks. It separates oil from water, collects hydrocarbons, and disposes of rainwater.

It is designed for easy installation and operation, with a large hydrocarbon collection capacity of 37 liters.

The system ensures that the filtered water complies with the Water Act, maintaining a hydrocarbon content of less than 5 ppm.

4. FBOX® connected rainwater treatment device

The FBOX is a smart rainwater treatment solution specifically designed for high voltage transformers.

This advanced system is equipped with real-time monitoring capabilities.

It ensures effective hydrocarbon filtration and automatic reporting, providing an efficient and intelligent approach to stormwater treatment for transformer sites.

5. Bundguard® water and oil monitoring system

The Bundguard system is an automated water and oil monitoring solution that detects and differentiates between water and hydrocarbons in transformer bunds.

This prevents accidental pollutant discharge by only allowing clean water to be released from containment areas.

It enhances stormwater management at electrical substations by reducing the risk of contamination and ensuring compliance with environmental standards.

Conclusion

An effective stormwater filtration system is essential for protecting the environment and maintaining compliance with regulations. Akhelec offers advanced solutions that ensure clean and safe stormwater management for industrial and electrical applications. By integrating Akhelec’s filtration technologies, businesses can safeguard natural water resources while meeting environmental responsibilities.