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汪素芳,郑杰蓉,赵晓婵,等. 阴阳室微生物燃料电池对磺胺嘧啶的降解性能及其产物生物毒性[J]. 科学技术与工程, 2020, 20(10): 4172-4177.
Wang Sufang,Zheng Jierong,Zhao Xiaochan,et al.Removal Performance of Sulfadiazine by Cathode-anode MFC and the Biotoxicity of Products[J].Science Technology and Engineering,2020,20(10):4172-4177.
阴阳室微生物燃料电池对磺胺嘧啶的降解性能及其产物生物毒性
Removal Performance of Sulfadiazine by Cathode-anode MFC and the Biotoxicity of Products
投稿时间:2019-07-11  修订日期:2019-10-30
DOI:
中文关键词:  微生物燃料电池  磺胺嘧啶  降解性能  生物毒性
英文关键词:microbial  fuel cells  sulfadiazine degradation  performance biotoxicity
基金项目:“脂肪酸酰胺水解酶介导有机磷酸酯精子毒性的分子机制研究”(21707099)资助;山西省应用基础研究计划项目“阿特拉津胁迫下细胞色素P450的表达调控机制研究”(201801D221346)资助
                 
作者单位
汪素芳 太原理工大学环境科学与工程学院
郑杰蓉 太原理工大学环境科学与工程学院
赵晓婵 太原理工大学环境科学与工程学院
李培瑞 太原理工大学环境科学与工程学院
董静 太原理工大学环境科学与工程学院
岳秀萍 太原理工大学环境科学与工程学院
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中文摘要:
      抗生素类污染物对水体环境的污染日益严重,磺胺嘧啶(Sulfadiazine, SDZ) 作为一种典型的磺胺类药物,其降解研究引起广大研究者的关注。本研究采用阴阳室微生物燃料电池(Microbial fuel cells, MFC),选择孔隙率高、导电性能良好的石墨毡为电极材料,探究MFC对SDZ的降解性能,并通过功率密度考察了以石墨毡为电极材料MFC的产电性能。采用UPLC-MS/MS测定该体系中SDZ的中间代谢产物。以大肠杆菌为受试菌体,对SDZ代谢产物的生物毒性进行了检测。结果表明,微生物驯化五个月后,SDZ初始浓度为40 mg?L-1时去除率可达到98.23%;由中间产物推测出两条主要的SDZ降解路径,其中苯亚磺酸为主要代谢产物;功率密度曲线表明以石墨毡为电极材料的MFC具有良好的产电性能;毒性检测结果表明,SDZ在降解周期末,其产物对大肠杆菌的生长并无产生抑制作用。
英文摘要:
      Antibiotics are increasingly polluting the water environment. Sulfadiazine (SDZ), a typical sulfonamides, has attracted the attention of many researchers. In this study, cathode-anode microbial fuel cells (MFC) was conducted to investigate the SDZ degradation performance, in which the graphite felt with high porosity and good electrical conductivity was selected as electrode material. Electrical properties of MFC were also evaluated through power density. Furthermore, the intermediate metabolites of SDZ were detected by UPLC-MS /MS. The biotoxicity of SDZ degradation products was determined using E. coli as the tested bacteria. The results show that the removal efficiency of SDZ (40 mg? L-1) could reach to 98.23% after 5 months. According to the intermediate products, two main degradation pathways of SDZ are deduced, among which benzenesulfonic acid is the main metabolite. The power density curve indicate that the MFC with graphite felt as the electrode material has excellent electrical performance. The toxicity test results demonstrate that the product of SDZ cannot inhibit the growth of E. coli.
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