标题：Application of response surface methodology to the removal of the antibiotic tetracycline by electrochemical process using carbon-felt cathode and DSA (Ti/RuO2-IrO2) anode
作者：Wu, J(Wu, Jie);Zhang, H(Zhang, Hui);Oturan, N(Oturan, Nihal);Wang, Y(Wang, Yan);Chen, L(Chen, Lu);Oturan, MA(Oturan, Mehmet A.)
来源出版物：CHEMOSPHERE卷：87 期：6 页：614-620 出版年：MAY 2012
摘要：The removal of antibiotic tetracycline (TC) from water by electrochemical advanced oxidation process (EAOP) was performed using a carbon-felt cathode and a DSA (Ti/RuO2-IrO2) anode. The influence of applied current, initial pH and initial TC concentration on TC removal efficiency was investigated. Response surface methodology (RSM) based on Box-Behnken statistical experiment design (BBD) was applied to analyze the experimental variables. The positive and negative effects of variables and the interaction between variables on TC removal efficiency were determined. The applied current showed positive effect, while the initial pH value and initial tetracycline concentration gave negative effect on TC removal. The interaction between applied current and initial pH value was significant, while the interactions of initial TC concentration with applied current or initial pH were not pronounced. The results of adequacy check confirmed that the proposed models were accurate and reliable to analyze the variables of EAOP. The reaction intermediates were identified by high-performance liquid chromatography-mass spectrometry (LC-MS) technique and a plausible degradation pathway for tetracycline degradation was proposed. The acute toxicity experiments illustrated that the Daphnia magna immobilization rate reached the maximum after 240 min of electrolysis and then decreased with the progress of the reaction. (C) 2012 Elsevier Ltd. All rights reserved.
作者关键词：Carbon felt; Electrochemical oxidation; Hydroxyl radicals; Response surface methodology; Tetracycline
扩展关键词：WASTE-WATER TREATMENT; HYDROGEN-PEROXIDE; FENTON PROCESS; MULTIVARIATE APPROACH; LANDFILL LEACHATE; AQUEOUS-MEDIUM; DEGRADATION; OXIDATION; WASTEWATERS; REACTOR
通讯作者地址：Zhang, H (通讯作者), Wuhan Univ, Dept Environm Engn, POB C319,Luoyu Rd 129, Wuhan 430079, Peoples R China
[Wu, Jie; Zhang, Hui; Wang, Yan; Chen, Lu] Wuhan Univ, Dept Environm Engn, Wuhan 430079, Peoples R China
[Oturan, Nihal; Oturan, Mehmet A.] Univ Paris Est, Lab Geomat & Environm, F-77454 Marne La Vallee 2, France
学科类别：Environmental Sciences & Ecology
