Because of its efficient flocculation effect and non-toxic properties

compound bioflocculant(CBF) has become one of the popular microbial water treatment agents at home and abroad in recent years. The research background and characteristics of CBF were introduced. And the research and application of CBF were reviewed

including screening of strains

optimization of cultivation conditions of flocculant-producing bacterium

selection of cheap substrate

components analysis of CBF

the flocculation mechanism

engineering application of CBF in water pollution control. Further refers to the problems existing in the research work of today's composite bioflocculants

and prospects for future research and development.