Pond sewage treatment plant and process for improving existing pond sewage treatment plants

摘要

Sewage treatment plant with an inlet (1), an outlet (11) leading to a receiving water, several treatment stages (6, 7, 8) between the inlet (1) and outlet (11) for the purification of waste water, pipes (3, 4 5) for introducing the waste water into the treatment stages (6, 7, 8) and at least one device (9) assigned to the lines (3, 4, 5) for the defined introduction of the waste water into one of the treatment stages (6, 7, 8), whereby as Treatment stages (6, 7, 8) at least one high-load stage (6), at least one medium-load stage (7) and at least one low-load stage (8) are provided, the treatment stages (6, 7, 8) are each equipped with a fill level measuring device, the inlet ( 1) a device (2) for detecting the degree of contamination of the wastewater supplied to the sewage treatment plant is connected downstream and a control system (10) is provided which is equipped with the level measuring devices, the device (2) for detecting the degree of contamination and the least s a device (9) for the defined introduction of the wastewater into one of the treatment stages (6, 7, 8) is connected in such a way that the wastewater is defined as a function of the degree of contamination and depending on the fill level of the treatment stages (6, 7, 8) the treatment stages (6, 7, 8) can be initiated.