Circulatory mixing system - for aeration basin with central inflow and outflow funnels for mixture of oxygen, sewage and recycled sludge

摘要

A circulatory mixing system for the aeration basin of a sewage treatment based on the activated sludge method has specially arranged inflow and outflow funnels for the fluid circuit. Both the inflow and the outflow funnel are located in the centre, the former at the water level and the latter at the bottom of the basin. This optimises both the mixing process and the aeration process.