基于响应曲面法探究厌氧条件下磺胺甲恶唑降解的影响因素  

Investigation of Factors Affecting the Degradation of Sulfamethoxazole Under Anaerobic Conditions Based on Response Surface Method

作　　者：上官培肯 楼佳敏 潘欣荣 Shangguan Peiken;Lou Jiamin;Pan Xinrong(College of Biology and Environmental Engineering,Zhejiang Shuren University,Zhejiang,310015)

机构地区：[1]浙江树人学院生物与环境工程学院,浙江310015

出　　处：《当代化工研究》2025年第6期28-31,共4页Modern Chemical Research

基　　金：浙江省大学生科技创新活动计划(新苗人才计划)项目资助“CO_(2)调控餐厨垃圾发酵产己酸机理及工艺研究”(项目编号:2023R420014)。

摘　　要：应用响应曲面法探索磺胺甲二唑厌氧去除效果,并优化厌氧去除性能。三个主要因素:化学需氧量(Chemical Oxygen Demand,COD)、浓度(300 mg/L、400 mg/L、500 mg/L)、温度(20℃、30℃、40℃)和pH值(6.0,7.0,8.0)被选择作为变量。中心复合试验设计(Central Composite Design,CCD)用于设计和分析实验。得到的最优去除条件:COD为455 mg/L、温度44.6℃和pH值为5.35。在最优条件下,后续实验证明在24 h内磺胺甲恶唑去除率能达到100%。推测磺胺甲恶唑厌氧条件下的降解机理为微生物介导的非生物转化。低pH值和高温有利于磺胺甲恶唑的降解。The response surface methodology was used to investigate the anaerobic degradation effect of sulfamethoxazole and optimize the performance of the anaerobic reactor.Three main factors:(chemical oxygen demand,COD)concentration(300 mg/L,400 mg/L,500 mg/L),tem-perature(20℃,30℃,40℃)and pH(6.0,7.0,8.0)were selected as variables.Central composite design(CCD)is used to design and analyze exper-iments.The optimal removal conditions are as follows:COD 455 mg/L,temperature 44.6℃and pH 5.35.Under optimal conditions,the subsequent experiment proved that the removal rate of sulfamethoxazole could reach 100%within 24 hours.It is speculated that the degradation mechanism of sulfamethoxazole under anaerobic conditions is microbial mediated abiotic transformation.Low pH and high temperature are favorable for the deg-radation of sulfamethoxazole.

关 键 词：磺胺甲恶唑 响应曲面分析 厌氧降解 影响因素 

分 类 号：X703[环境科学与工程—环境工程]