Oil separators with BYPASS

The treated water meets sufficient criteria to exit to the recipient of 2nd category watercourses.
The guaranteed quantity of oil after the purification of waste water with the specified input parameters is up to 5 mg/l.
They are designed to purify all wastewater on the agreed upon area in the anticipated amount of up to 6,5 mm/h of rainfall. This quantity covers the usual amount of rainfall.
During heavy rainfall, the first onset of contaminated water passes through the separator through a filter which allows the purification of water. As the precipitation increases, the amount of oil is reduced significantly, and, instead of through the filter, the water flows into the recipient through a bypass. The flow through the bypass is in the ratio 1:5.
They are used in places where only a small contamination can occur, for example personal car parking, or when it’s deemed as an acceptable risk not to give water a full treatment at high flow rates. In other cases it is not acceptable to use oil separators with a bypass.