菌藻颗粒污泥对氯霉素废水的去除效率及机理研究  

Using Algae-Bacteria Granular Sludge to Effectively Treat Chloramphenicol Wastewater:Performance and Mechanism

作　　者：徐超 王启中 王宗平 XU Chao;WANG Qizhong;WANG Zongping(CISPDR Corporation,Wuhan 430023,China)

机构地区：[1]长江设计集团,湖北武汉430023

出　　处：《水处理技术》2023年第7期45-49,共5页Technology of Water Treatment

基　　金：国家自然科学基金项目(51808416);长江水利委员会长江科学院开放研究基金项目(CKWV2018490/KY)。

摘　　要：研究了不曝气条件下菌藻颗粒污泥对含氯霉素废水的去除效果和机理。COD、TIN去除率分别为(81.2±1.2)%、(82.1±2.2)%且长期运行稳定,氯霉素去除率达74%,证明了菌藻颗粒污泥对抗生素有着优秀的抗毒性和去除性能,同时对氯霉素的去除机理展开了探究,发现氯霉素是通过静电吸附、官能团吸附、胞内积累及生物降解等途径共同作用去除的,生物降解主要途径是断链、脱氯、氧化和羟基化反应,使其分解易被细菌代谢的链状有机物。In this experiment,the removal effect and mechanism of algae-bacteria granular sludge on chloramphenicol wastewater without aeration were studied.The removal rates of COD and TIN were(81.2±1.2)%and(82.1±2.2)%respectively,and the long-term operation was stable.The removal rate of chloramphenicol reached 74%,which proved that the bacteria-algae granular sludge had excellent anti-toxicity and removal performance to antibiotics.Meanwhile,the removal mechanism of chloramphenicol was explored.It was found that chloramphenicol was removed by electrostatic adsorption,functional group adsorption,intracellular accumulation and biodegradation.The main biodegradation pathways were chain breaking,dechlorination,oxidation and hydroxylation,so that it could decompose chain organic compounds easily metabolized by bacteria.

关 键 词：菌藻颗粒污泥 氯霉素 细胞吸附 氯霉素降解途径 

分 类 号：X703[环境科学与工程—环境工程]