文献类型：期刊文献

英文题名：Degradation of sulfanilamide by Fenton-like reaction and optimization using response surface methodology

作者：Wang, Tenghao[1];Zhou, Yi[2];Cao, Shixin[2];Lu, Jian[1];Zhou, Yanbo[1,2]

机构：[1]East China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2019

卷号：172

起止页码：334

外文期刊名：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000460196000044)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant No. 51778230), the National Key Research and Development Program of China (Grant No. 2017YFB0602601), Shanghai Rising -Star Program (Grant No. 17QA1401000), and the Fundamental Research Funds for the Central Universities for their financial support (Grant No. 222201718003).

语种：英文

外文关键词：Sulfanilamide; Calcium peroxide; Response surface methodology; Fenton

摘要：Excess sulfonamides are discharged into the environmental system due to the abuse of antibiotics, which threatens the ecological environment and human health. In this study, the ferric and ferrous as well as calcium peroxide (CP), sodium percarbonate (SPC) and sodium persulfate (SPS) have been used to build Fenton-like system for the sulfanilamide (SA) removal. Compared with other Fenton-like system, the Fe3+/CP system exhibited better degradation capacity and 94.65% SA was removed with 3.0 mM CP and 3.0 mM Fe3+. A response surface and corresponding quadratic regression equation were obtained by using a three-level Box-Behnken factorial design with the initial pH value and the dosage of Fe3+ and CP as the model parameters. Depended on the result of the response surface, the optimum conditions of the removal of SA in Fe3+/CP system could be obtained: [Fe3+] = 2.96 mM, [CaO2] = 2.33 mM and [pH] = 6.45. Besides that, the influences of Na+, Mg2+, Cl-, HCO3-, NO3- and HA on SA removal were also investigated under the optimum condition. The results revealed that the high concentration of HCO3- was able to inhibit degradation of SA while other ions and HA have little effect on SA degradation. These results provided a novel strategy to evaluate the catalyst/oxidant system by combining experiment and computer simulation in wastewater treatment.