Sewage emission reducing device for drains, comprises compartment connected to bypass pipe via automatically operated valve with overflow barriers

摘要

A tank-shaped compartment (1, 2) is connected to a bypass pipe (BL) via an automatically operated valve (S1, S2) with overflow barriers (EO1- EO3, IO1, IO2). Water volume and quality measuring devices are located in front of the overflow barriers. A control device is used to open and close the valve on the basis of the results of comparing the measured quality of the water before it enters and after it leaves the tank.