Patent ID: 6139743
Filing Date: 2000-10-31
Classification: C02F,Y10S

Abstract:
A method of wastewater treatment for removing nitrogen and phosphorus comprising:providing wastewater and a carbon source to an anaerobic/anoxic reaction tank having at least a first and a last compartment partitioned by a number of partitions, where the first compartment is anaerobic and the last compartment is anoxic;flowing the treated wastewater from the last compartment of the anaerobic/anoxic reaction tank to an aeration tank and removing phosphorus by luxury uptake of the phosphorus;flowing the treated wastewater from the aeration tank to a settling tank and settling a sludge from the wastewater; andreturning the settled solid components into the first compartment of the anaerobic/anoxic reaction tank and discharging the treated wastewater from the settling tank.