PROCESS FOR THE TREATMENT OF WASTE WATER CONTAINING SPECIFIC COMPONENTS, E.G. AMMONIA

摘要

A process is described for the biological treatment of waste water containing a specific component such as ammonia, wherein the waste water together with surplus sludge from an activated sludge reactor is treated in a bioaugmentation reactor, applying a hydraulic retention time in the continuously or discontinuously operated reactor which is shorter than the sludge retention time by retaining part of the sludge in the reactor and continuing the use of the separated part in the reactor. The non-retained part of the sludge, together with the effluent of the bioaugmentation reactor, is added to the activated sludge reactor.