Tank for treating e.g. runoff water, containing mud by washing, cleaning and separation of hydrocarbons, has water processing unit comprising two siphons, where one of siphons is defined between upper end of partition and outlet

摘要

The tank (1) has an inlet (2) for water to be treated. A water processing unit is arranged at an internal part of the tank. The water processing unit comprises an open coalescence case (10) that is subdivided by a separation partition (11) in two compartments (12, 13). A first siphon is defined between an opening (7) of a bent supply pipe (6) and an upper end (25) of a partition of a box. A second siphon is defined between the upper end of the partition of the box and an outlet (3) of the tank. The supply pipe and the case are made of synthetic material.