Large volumes of water polluted with hydrocarbons

aerial view of a filtration center

High- flow filtration of water polluted with hydrocarbons is a crucial issue for many companies. Find out about the different laws governing the management of water pollution risks, as well as our FILTRELEC ECODESIGN® F1500 high flow hydrocarbon filter.

Filtration of large volumes of water polluted with hydrocarbons and dielectrics

Aquatic environments known as “rainwater receptors” such as watercourses or subsoils are liable to be contaminated by various chemical substances. This is why it is necessary to set up efficient filtration solutions with a sufficient flow rate to avoid environmental degradation.

Thus, in order to treat storm water runoff contaminated by hydrocarbons and dielectrics, two main pieces of equipment are necessary:

  • The oil separators can trap by a system of filtration by gravity filter insoluble liquids in water with a density less than or equal to 0.95g / cm3. On the one hand, class 1 separators allow filtration by coalescence with a maximum residual quantity of hydrocarbons of 5 mg per litre of water under ideal maintenance, temperature and precipitation conditions. The discharge of this water is done either on a natural network or on a network which does not have a treatment plant. On the other hand, class 2 separators allow gravity filtration with a maximum residual quantity of hydrocarbons of 100 mg per litre of water. The discharge of this water is mainly done on a collective network with a purification station. 


  • Dielectric filtration systems in the form of filter cartridges composed of oleophilic media. They make possible to trap oils and obtain water with a residual amount of hydrocarbons of 1 to 5 mg / L. The F1500 filtration system can also be placed downstream of an existing gravity separator to maximize filter life and limit maintenance operations.   

The FILTRELEC ECODESIGN® F1500 high flow hydrocarbon filter

Thanks to its high flow filtration system, the FILTRELEC F1500 continuously filters and evacuates water polluted with hydrocarbons and dielectrics in order to prevent soil pollution.

Its high filtration rate of 1500L / min therefore adapts perfectly to large quantities of oily water.

The water recovered at the outlet of the system has a maximum residual hydrocarbon content of 5 mg / L, in accordance with the criteria of the water law.

On the design side, the high flow hydrocarbon filter is integrated in a concrete manhole or in a metal casing. The system also has a pre-filter and absorbent media packaged directly into the filter.

hydrocarbons filter high volume

The latter has a safety device in the event of a major oil leak to ensure environmental protection. System maintenance is reduced and a refill kit allows replacement of the pre-filter and absorbent media. The FILTRELEC F1500 casing can therefore be reused. This system thus makes it possible to minimize the costs, work and maintenance associated with the treatment of polluted water. 

Finally, concerning the installation, our design office is responsible for providing you with a complete solution for the treatment of your polluted water.

Contact us for more information

To preserve the environment in accordance with the Water Law and at a limited cost, contact us quickly!  Our teams are at your disposal to answer all your questions about our high flow hydrocarbon filter and other solutions.