When and industrial equipment fulfilled with hydrocarbons is installed outside it is subject to rainwater that can fill this primary retention tank. To overcome this rainwater/oil leak overflow risk, the tank must be equipped with a system that filters and continuously discharges rainwater while retaining hydrocarbons within a secondary retention device.

Authorities have set the hydrocarbon contamination limit to no more than 5 ppm hydrocarbon in discharged water (EN 858-1: "light liquid separations facilities"). Therefore, SANERGRID propose you pre-fabricated offset pit especially designed for hydrocarbons applications, and rainwater filter for oil contaminated waters which works by gravitation without electricity and auto block itself when too much oil saturate the filter; or with pumped systems with level detection and alarms trigger.

1- Outdoor oil transformer leakage and spill

2 - Rainwater contaminated with hydrocarbons

3 - Civil work engine with oil spill

4 -  Rain + oil spill : consequences on water pool

SPI filter PETRO PIPE example : rain is drained, oil is contained

Range D-POSIT™ : double wall prefabricated offset pit class 1 and 2