标题：Degradation of Orange II by UV-Assisted Advanced Fenton Process: Response Surface Approach, Degradation Pathway, and Biodegradability作者：Li, Huiyuan; Gong, Yanhua; Huang, Qianqian; Zhang, Hui

来源出版物：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 卷：52 期：44 页：15560-15567 DOI：10.1021/ie401503u 出版年：NOV 6 2013

摘要：Orange II in aqueous solution was degraded with hydroxyl radicals generated from zerovalent iron (ZVI) and hydrogen peroxide (H2O2) under UV irradiation. Results showed that the introduction of UV light could remarkably enhance the decolorization efficiency of Orange II in the ZVI/H2O2 process (advanced Fenton process, APP). Central composite design (CCD) and the response surface methodology (RSM) were applied to investigate operating condition effects, such as initial pH, ZVI loading, and H2O2 concentration, on the decolorization efficiency at 30 min. The RSM model was derived and the response surface plots were developed based on the results. Moreover, the intermediates during the oxidation process were identified and the degradation pathway was proposed accordingly. After UV-assisted AFP, 68.3% of COD was removed and BODs/COD ratio increased from 0.019 to 0.41, indicating the effluent was more suitable for biodegradation.

入藏号：WOS:000326774700039

文献类型：Article

语种：English

扩展关键词：ZERO-VALENT IRON; COAGULATION-FLOCCULATION PROCESS; ADVANCED OXIDATION PROCESSES; CENTRAL COMPOSITE DESIGN; TEXTILE WASTE-WATER; AZO-DYE; PHOTO-FENTON; AQUEOUS-SOLUTION; ULTRASONIC IRRADIATION; ACID-ORANGE-7 AO7

通讯作者地址：Zhang, Hui; Wuhan Univ, Dept Environm Engn, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.

电子邮件地址：eeng@whu.edu.cn

地址：

[Li, Huiyuan; Gong, Yanhua; Huang, Qianqian; Zhang, Hui] Wuhan Univ, Dept Environm Engn, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.

研究方向：Engineering

ISSN：0888-5885