Demystifying polyphosphate-accumulating organisms relevant to wastewater treatment: A review of their phylogeny, metabolism, and detection  

作　　者：Lucia Ruiz-Haddad Muhammad Ali Mario Pronk Mark C.Mvan Loosdrecht Pascal E.Saikaly 

机构地区：[1]Environmental Science and Engineering Program,Biological and Environmental Science and Engineering(BESE)Division,King Abdullah University of Science and Technology(KAUST),Thuwal,23955-6900,Saudi Arabia [2]Water Desalination and Reuse Center,Biological and Environmental Science and Engineering(BESE)Division,King Abdullah University of Science and Technology(KAUST),Thuwal,23955-6900,Saudi Arabia [3]Department of Civil,Structural&Environmental Engineering,Trinity College Dublin,The University of Dublin,Dublin,2,Ireland [4]Department of Biotechnology,Delft University of Technology,Delft,2629 HZ,the Netherlands

出　　处：《Environmental Science and Ecotechnology》2024年第5期1-16,共16页环境科学与生态技术（英文）

基　　金：supported by King Abdullah University of Science and Technology(KAUST).

摘　　要：Currently,the most cost-effective and efficient method for phosphorus(P)removal from wastewater is enhanced biological P removal(EPBR)via polyphosphate-accumulating organisms(PAOs).This study integrates a literature review with genomic analysis to uncover the phylogenetic and metabolic diversity of the relevant PAOs for wastewater treatment.The findings highlight significant differences in the metabolic capabilities of PAOs relevant to wastewater treatment.Notably,Candidatus Dechloromonas and Candidatus Accumulibacter can synthesize polyhydroxyalkanoates,possess specific enzymes for ATP production from polyphosphate,and have electrochemical transporters for acetate and C4-dicarboxylates.In contrast,Tetrasphaera,Candidatus Phosphoribacter,Knoellia,and Phycicoccus possess PolyP-glucokinase and electrochemical transporters for sugars/amino acids.Additionally,this review explores various detection methods for polyphosphate and PAOs in activated sludge wastewater treatment plants.Notably,FISH-Raman spectroscopy emerges as one of the most advanced detection techniques.Overall,this review provides critical insights into PAO research,underscoring the need for enhanced strategies in biological phosphorus removal.

关 键 词：Polyphosphate-accumulating organisms(PAOs) Enhanced biological phosphorus removal (EBPR)Tetrasphaera Ca.accumulibacter Ca.phosphoribacter Knoellia Phycicoccus 

分 类 号：X703[环境科学与工程—环境工程]