Author(s)

Jiyao Yang

Corresponding Author

Jiyao Yang

ABSTRACT

The eutrophication of water body is the key concern of the current water environment protection work. Enhanced biological phosphorus removal (EBPR) has become an important method for ecological restoration of eutrophic water bodies due to its high efficiency, low consumption and no secondary pollution. In recent years, the research on phosphate accumulating organisms (PAOs) in EBPR system and its application in sewage treatment process have become more and more extensive. In this paper, the research progress of PAOs in EBPR system is reviewed, and several PAOs that play an important role in EBPR system are analyzed. Then, the phosphorus removal mechanism of EBPR was described from three aspects: enzymatic reaction, biochemical process and EBPR participated by extracellular polymeric substance (EPS). Finally, based on the existing problems of EBPR, the research direction of EBPR in the future is prospected in order to provide reference for improving the phosphorus removal mechanism of PAOs and EBPR process.

KEYWORDS

Eutrophication, Phosphorus accumulating organisms, Enhanced Biological phosphorus removal, Extracellular polymeric substance, Mechanism