文献类型：期刊文献

英文题名：Investigation and optimization of the novel UASB-MFC integrated system for sulfate removal and bioelectricity generation using the response surface methodology (RSM)

作者：Zhang, Baogang[1];Zhang, Jing[1];Yang, Qi[1];Feng, Chuanping[1];Zhu, Yuling[2];Ye, Zhengfang[3];Ni, Jinren[3]

机构：[1]China Univ Geosci Beijing, Minist Educ, Key Lab Groundwater Circulat & Evolut, Sch Water Resources & Environm, Beijing 100083, Peoples R China;[2]Shaoxing Univ, Coll Life Sci, Shaoxing 312000, Peoples R China;[3]Peking Univ, Minist Educ, Key Lab Water & Sediment Sci, Dept Environm Engn, Beijing 100871, Peoples R China

年份：2012

卷号：124

起止页码：1

外文期刊名：BIORESOURCE TECHNOLOGY

收录：SCI-EXPANDED(收录号：WOS:000311175000001)、、EI(收录号：20124415623428)、Scopus(收录号：2-s2.0-84866148302)、WOS

基金：Financial support is gratefully acknowledged from the Fundamental Research Funds for the Central Universities (2011YYL109). The authors are grateful to Prof. Alistair Borthwick from University of Oxford for his kind help in English editing.

语种：英文

外文关键词：Microbial fuel cells; Sulfate; Sulfide; Electricity generation; Response surface methodology

外文摘要：COD/sulfate ratio and hydraulic residence time (HRT), both of which influence sulfate loadings jointly, are recognized as the most two important affecting factors for sulfate removal and bioelectricity generation in the novel up-flow anaerobic sludge blanket reactor-microbial fuel cell (UASB-MFC) integrated system. The response surface methodology (RSM) was employed for the optimization of this system and the optimum condition with COD/sulfate ratio of 2.3 and HRT of 54.3 h was obtained with the target of maximizing the power output. In terms of maximizing the total sulfate removal efficiency, the obtained optimum condition was COD/sulfate ratio of 3.7 and HRT of 55.6 h. Experimental results indicated the undistorted simulation and reliable optimized results. These demonstrated that RSM was effective to evaluate and optimize the UASB-MFC system for sulfate removal and energy recovery, providing a promising guide to further improvement of the system for potential applications. (C) 2012 Elsevier Ltd. All rights reserved.