标题：Factorial design analysis for COD removal from landfill leachate by photoassisted Fered-Fenton process

作者：Wu, Xiaogang; Zhang, Hui; Li, Yanli; Zhang, Daobin; Li, Xianwang

来源出版物：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 卷：21 期：14 页：8595-8602 DOI：0.1007/s11356-014-2790-2 出版年：JUL 2014

摘要：The Fered-Fenton process has been shown to be an effective method for leachate treatment, but it still faces problems of inadequate regeneration of ferrous ion. However, the use of the photoassisted Fered-Fenton process could overcome this difficulty and improve the efficiency of chemical oxygen demand (COD) removal since photoassisted Fered-Fenton process induces the production of hydroxyl radicals from the regeneration of ferrous ions and the reaction of hydrogen peroxide with UV light. As there are so many operating parameters in photoassisted Fered-Fenton process, it is necessary to develop a mathematical model in order to produce the most economical process. In the present study, a factorial design was carried out to evaluate leachate treatment by photoassisted Fered-Fenton process. The influence of the following variables: H2O2 concentration, Fe2+ concentration, current density, and initial pH in the photoassisted Fered-Fenton process was investigated by measuring COD removal efficiencies after 60-min reaction. The relationship between COD removal and the most significant independent variables was established by means of an experimental design. The H2O2 concentration, Fe2+ concentration, initial pH, and the interaction effect between current density and initial pH were all significant factors. The factorial design models were derived based on the COD removal efficiency results and the models fit the data well.

入藏号：WOS:000338452000024

文献类型：Article

语种：English

作者关键词：COD removal, Electrochemical advanced oxidation processes, experimental design, Factorial

design, Landfill leachate, Photoassisted Fered-Fenton process

扩展关键词：ELECTRO-FENTON; PHOTO-FENTON; MULTIVARIATE APPROACH; WINERY WASTEWATERS; ANODIC-OXIDATION; DEGRADATION; MINERALIZATION; REAGENT; REACTOR; OPTIMIZATION

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：

[Wu, Xiaogang; Zhang, Hui; Li, Yanli; Zhang, Daobin; Li, Xianwang] Wuhan Univ, Dept Environm Engn, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.

[Wu, Xiaogang] Yangtze Univ, Sch Urban Construct, Jinzhou, Peoples R China.

研究方向：Environmental Sciences & Ecology

ISSN：0944-1344