Fenton技术对强化生物除磷(EBPR)系统性能的影响及机制研究  

Effect and mechanism of Fenton process on the performance of enhanced biological phosphate removal system

作　　者：徐茉寒 廖文强 刘霄雯 王俊睿 吴京 史静 XU Mohan;LIAO Wenqiang;LIU Xiaowen;WANG Junrui;WU Jing;SHI Jing(College of Engineering,China Pharmaceutical University,Nanjing 210009;Nanjing Institute of Environmental Science,Ministry of Ecology and Environment,Nanjing 210042;State Key Laboratory of Pollution Control and Resource Reuse,School of Environment,Nanjing University,Nanjing 210023)

机构地区：[1]中国药科大学工学院,南京210009 [2]生态环境部南京环境科学研究所,南京210042 [3]南京大学污染控制与资源化研究国家重点实验室,南京210023

出　　处：《环境科学学报》2025年第3期195-204,共10页Acta Scientiae Circumstantiae

基　　金：污染控制与资源化研究国家重点实验室开放课题资助项目(No.PCRRF22012);中国药科大学大学生创新创业训练计划项目(No.202410316337)。

摘　　要：为阐明高级氧化技术对强化生物除磷系统除磷性能的影响及机制,利用Fenton-EBPR联合工艺降解磷霉素废水,从水质指标和微生物特性两个角度探究了前段Fenton对后段EBPR系统的影响.结果表明:Fenton工艺残留的过氧化氢以及未被降解的磷霉素等物质会严重影响下游EBPR工艺的除磷效能,同时也会富集出对磷霉素耐药且具有较强抗氧化性的不动杆菌属细菌.以Acinetobacter towneri为代表的不动杆菌属细菌能适应磷霉素废水中残留的氧化性物质以及未被降解的磷霉素.微生物对磷霉素的耐药机制主要是作用靶酶MurA突变.To clarify the impacts and mechanisms of advanced oxidation process on the phosphorus removal in the enhanced biological phosphorus removal(EBPR)system,the combined Fenton-EBPR process was utilized for fosfomycin wastewater treatment.The effect of Fenton in the front section on the EBPR process in the back section were investigated from the perspectives of both water quality indexes and microbial properties.The results showed that:the substances such as the residual hydrogen peroxide and undegraded fosfomycin in the Fenton process seriously affected the phosphorus removal efficiency of the downstream EBPR process,and Acinetobacter,which are resistant to fosfomycin and have strong antioxidant properties,were also be enriched.Acinetobacter,especially Acinetobacter towneri,could adapt to the residual hydrogen peroxide,oxidizing substances and the undegraded fosfomycin in the wastewater.The resistance to fosfomycin mechanism could be the mutation of the target enzyme MurA.

关 键 词：FENTON工艺 生物除磷 磷霉素 除磷菌 宏基因组 

分 类 号：X703[环境科学与工程—环境工程]