Abstract
A high concentration of phosphorous in wastewater when discharged into the water bodies causes eutrophication, thus resulting in a decreased level of dissolved oxygen. Enhanced biological phosphate removal (EBPR) is the sustainable process in which the biological uptake of phosphorous occurs from wastewater by the selected heterotrophic bacteria called polyphosphate-accumulating organisms which are capable of absorbing and storing more phosphorous than other bacteria naturally found in activated sludge through alternating anaerobic and aerobics zones. Enhanced phosphate removal from wastewater is a sewage treatment configuration applied to the activated sludge systems for the removal of phosphate, which can be achieved by placing an anaerobic zone at the front end of the conventional activated sludge process. Thus EBPR is considered as one of the most promising methods for wastewater treatment processes. This chapter discusses the mechanism, principle, microbial characterization, and important parameters of an EBPR used for wastewater treatment.
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