Must clarifier - Oil separator

Components and operation

Sludge trap

• Role : It retains solid matter in the effluent, such as soil, leaves and other coarse elements that are not retained by an upstream screening system. These elements settle to the bottom of the sludge trap, requiring regular cleaning to prevent blockages.
• How does it work? Solid particles settle when the water slows down in the settling chamber, allowing them to settle.

Oil separator

• Role : To filter hydrocarbons before the water is discharged into the environment or before the treatment of phytosanitary effluents. This device is crucial if we are to comply with regulations requiring that effluent containing more than 5 mg/l of hydrocarbons should not be discharged.
• How it works: Due to the difference in density, hydrocarbons float to the surface of the water, where they can be collected for subsequent treatment. A retention system can also be included to prevent hydrocarbons being washed away in the event of an overload.

Uses and regulations

• Environmental protection: The system prevents groundwater and watercourses from being contaminated by hydrocarbons and solids.
• Regulatory compliance: It enables compliance with effluent discharge standards, which must not exceed 5 mg/l of hydrocarbons.
• Mandatory pre-treatment: In particular for washing areas, a pre-treatment system is required for effluents discharged into the environment. For phytosanitary effluents, the use of such a system is recommended but not compulsory, depending on the treatment system chosen.