菌藻颗粒污泥处理马拉硫磷废水的效能及机理研究  

Efficacy and mechanism of algae-bacteria granular sludge for the treatment of Malathion wastewater

作　　者：李好 陈威[1] 宋宏娇[1] 曹亮 LI Hao;CHEN Wei;SONG Hongjiao;CAO Liang(School of Urban Construction,Wuhan University of Science&Technology,Wuhan 430081,China;Changjiang Basin Ecology and Environment Monitoring and Scientific Research Center,Changjiang Basin Ecology and Environment Administration,Ministry of Ecology and Environment,Wuhan 430010,China)

机构地区：[1]武汉科技大学城市建设学院,湖北武汉430081 [2]生态环境部长江流域生态环境监督管理局生态环境监测与科学研究中心,湖北武汉430010

出　　处：《应用化工》2025年第2期422-427,共6页Applied Chemical Industry

基　　金：长江生态环境保护修复联合研究项目(第二期)(2022LHYJ02050403)。

摘　　要：马拉硫磷作为频繁使用的农药已经对环境造成了严重的污染,针对其毒性大的问题,在曝气条件下利用菌藻颗粒污泥(ABGS)处理马拉硫磷废水,结果表明:经过30 d驯化之后,ABGS对化学需氧量、总氮、总磷、马拉硫磷去除率分别为91.39%,85.89%,56.32%,79.21%;持续稳定的胞外聚合物(EPS)增长表明其在马拉硫磷废水中具备较强的结构稳定性和毒性抵抗力。Burkholderia菌属和Dyella菌属为ABGS中的优势种群,Burkholderia菌属主要承担生物降解马拉硫磷的功能。通过液相色谱检测发现ABGS生物降解马拉硫磷的最终产物均为正磷酸盐;并发现ABGS的氮代谢通路为异化硝酸盐还原作用和氨解毒作用。ABGS对马拉硫磷废水具有很强的适应能力,并可以高效的去除废水中的马拉硫磷。Malathion as a frequently used pesticide has caused serious pollution to the environment,in response to its high toxicity,under the condition of aeration using algal-bacterial granular sludge(ABGS)to treat Malathion-containing wastewater.The results show that:after 30 d of domestication,the removal rate of ABGS on chemical oxygen demand(COD),total nitrogen(TN),total phosphorus(TP),and Malathion were 91.39%,85.89%,56.32%,and 79.21%;the continuous and stable growth of extracellular polymers(EPS)indicated that ABGS possessed strong structural stability and toxicity resistance in Malathion wastewater.Burkholderia and Dyella were the dominant populations in ABGS,and Burkholderia were mainly responsible for the biodegradation of Malathion.Liquid chromatography showed that the end products of Malathion biodegradation by ABGS were all orthophosphate;and the nitrogen metabolism pathway of ABGS was found to be heterogeneous nitrate reduction and ammonia detoxification.ABGS is highly adaptable to Malathion wastewater and can efficiently remove Malathion from wastewater.

关 键 词：菌藻颗粒污泥 马拉硫磷 生物吸附 生物降解 降解通路 

分 类 号：TQ453.22[化学工程—农药化工] X592[环境科学与工程—环境工程]