Process for operating a waste water treatment plant and a clarified water extractor pump for carrying out the process

摘要

A method for operating a wastewater treatment plant, in particular a single-tank wastewater treatment plant, in which a settling and secondary clarification phase takes place after an activation phase, comprises a clear water extraction pump for removing the clear water after the settling and secondary clarification phase. The clear water extraction pump is switched on at least for a short pump surge, in particular during the settling and secondary clarification phase, so that the pump pumps water into a rising section of a pressure line connected to the pressure side of the pump, which after the pump surge through the pump into the tank of the plant running back. IMAGE