摘要
聚磷菌(PAOs)是强化生物除磷工艺中发挥除磷作用的主要功能微生物,其代谢行为决定了除磷系统的稳定性及最终除磷效果.为了适应外界环境变化,聚磷菌会发生由聚磷代谢模式向聚糖代谢模式的代谢迁移.本文阐述了PAOs代谢迁移的机理,对可能引起聚磷菌代谢迁移的环境因子如进水磷浓度、金属离子、pH值、温度等进行了总结,并分类叙述了不同类型的PAOs种类发生代谢迁移的差异化原因,以期为PAOs在强化生物除磷工艺中的应用提供参考.
Phosphorus accumulating organisms(PAOs)are the main functional microorganisms that play the role of phosphorus removal in the enhanced biological phosphorus removal(EBPR)process.Their metabolic behavior determines the stability of the phosphorus removal system and the final phosphorus removal efficiency.In order to adapt to the external environment change,the metabolic mode of PAOs will shift from polyphosphate accumulating metabolism to glycogen accumulating metabolism.On the basis of stoichiometric parameters,the mechanism of the metabolic shift of PAOs were described and the environmental factors that may cause the metabolic shift,such as influent phosphorus concentration,metal ions,pH value,temperature,etc.were summarized in this paper.Also,the reasons for the metabolic shift in different PAOs species were classified and described.This review provides a reference for the application of PAOs in EBPR processes.
作者
李璐
邵鸿渝
黄继会
倪敏
黄勇
潘杨
LI Lu;SHAO Hong-yu;HUANG ji-hui;NI Min;HUANG Yong;PAN Yang(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China;National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology,Suzhou 215009,China;Jiangsu Provincial Key Laboratory of Environmental Science and Engineering,Suzhou 215009,China;Suzhou Drainage Co.,LTD,Suzhou 215009,China)
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2024年第5期2642-2651,共10页
China Environmental Science
基金
国家自然科学基金资助项目(51778390,51938010)
江苏省重点研发项目(BE2021658)
苏州市科技发展计划项目(社会发展科技创新)(2022SS17)
江苏省环境科学与工程重点实验室开放基金资助项目(JSHJZDSYS-202104)。
关键词
聚磷菌
代谢迁移
聚磷代谢模式
聚糖代谢模式
环境因子
phosphorus accumulating organisms
metabolic shift
polyphosphate accumulating metabolism
glycogen accumulating metabolism
environmental factor
