李方,金春姬,崔灿洙,林凤洙

• 1:中国海洋大学环境科学与工程学院
• 2:中国海洋大学海洋环境与生态教育部重点实验室
• 3:大田大学应用化学系
• 4:大田大学环境工学系

摘要(Abstract)：

采用以碳刷为阳极、碳布为阴极的双室微生物燃料电池技术(MFC),对含铬废水中Cr(VI)的去除效率以及电池的产电性能进行研究。分别就阴阳极电解液的浓度、阴极电解液缓冲性、阴极通入不同的气体等影响因素进行考察。结果表明:当300和25mmol/L KCl分别加入电池的阴极液和阳极液时,相比于阴极添加200mmol/L KCl而阳极无KCl添加,产电功率有51.52%的提高;阴极液保持强酸性(pH=2.0)有利于Cr(VI)的还原,添加具有缓冲作用的KH2PO4保证了溶液酸度的稳定,使Cr(VI)的去除率由70.02%上升到99.89%;对比空气阴极和氮气阴极,阴极通入空气可能产生中间产物H2O2,它加快了Cr(VI)的去除,同时使产电功率提高了20%,电池内阻在通入空气和氮气的条件下均约为100Ω。阴极液中O2与Cr(VI)的同时存在能优化MFC的性能。

关键词(KeyWords)： 微生物燃料电池;污水;铬去除;产电效率

Abstract:

Keywords:

基金项目(Foundation): 国家水体污染控制与治理科技重大专项(2008ZX07010-008-04);; 山东省自然科学基金项目(ZR2011BM014)资助

作者(Author): 李方,金春姬,崔灿洙,林凤洙

DOI: 10.16441/j.cnki.hdxb.2013.12.013

参考文献(References)：

• [1]Sarin V,Sarvinder S T,Pant K K.Thermodynamic and breakthrough column studies for the selective sorption of chromium from industrial effluent on activated eucalyptus bark[J].Bioresource Techonology,2006,97:1986-1993.
• [2]Kavanaugh M C.Alternatives for Groundwater Cleanup[M].Washington,DC:National Academy Press,1994.
• [3]Miretzky P,Fernandez Cirelli A.Cr(VI)and Cr(III)removal from aqueous solution by raw and modified lignocellulosic materials:A review[J].Journal of Hazardous Materials,2010,180:1-19.
• [4]Singh V,Kumari P,Pandey S,et al.Removal of chromium(VI)using poly(methylacrylate)functionlized guar gum[J].Bioresource Technology,2009,100:1977-1982.
• [5]Erdem M,Tumen F.Chromium removal from aqueous solution by the ferrite process[J].Hazardous Materials,2004,109:71-77.
• [6]Parkh S,Kim B H,Kimh S,et al.A novel electro-chemically active and Fe(III)-reducing bacterium phy-logenetically related to Clostridium butyricam isolated from amicrobial fuel cell[J].Anaerobe,2001,7:297-306.
• [7]Choi C,Chui Y.Recovery of silver from wastewater coupled with power generation using a microbial fuel cell[J].Bioresource Technology,2012,107:522-525.
• [8]梁鹏,黄霞,范明志,等.双筒型微生物燃料电池产电及污水净化特性的研究[J].环境科学,2009,30:616-620.
• [9]Tandukar M,Huber S,Onodera T,et al.Biological chromium(VI)reduction in the cathode of a microbial fuel cell[J].Environmental Science and Technology,2009,43:8159-8165.
• [10]Huang L,Chai X,Cheng S,et al.Evaluation of carbon-based materials in tubular biocathode microbial fuel cells in terms of hexavalent chromium reduction and electricity generation[J].Chemistry Engineering Journal,2010,166:652-661.
• [11]Pettine M,Campanella L,Millero F J.Reduction of hexavalent chromium by H2O2in acidic solutions[J].Environmental Science and Technology,2002,36:901-907.
• [12]van Niekerk W,Pienaar J J,Lachmann G,et al.A kinetic and mechanistic study of the chromium(VI)reduction by hydrogen peroxide in acidic aqueous solutions[J].Water SA,2007,33:619-625.
• [13]Zhu X,Ni J.Simultaneous processes of electricity generation and p-nitrophenol degradation in a microbial fuel cell[J].Electrochemistry Communications,2009,11:274-277.
• [14]Liu L,Yuan Y,Li F,et al.In-situ Cr(VI)reduction with electrogenerated hydrogen peroxide driven by iron-reducing bacteria[J].Bioresource Technology,2011,102:2468-2473.
• [15]Wang Z,Lim B,Choi C.Removal of Hg2+as electron acceptor with power generation using a microbial fuel cell[J].Bioresource Technology,2011,102:6304-6307.
• [16]Clesceri L S,Greenberg A E,Eaton A D.Standard Methods for the Examination of Water and Wastewaters[S].20th ed.Washington,DC:American Public Health Association,1998.
• [17]Liu H,Cheng S A,Logan B E.Power generation in fed-batch microbial fuel cells as a function of ionic strength,temperature,and reactor configuration[J].Environmental Science and Technology,2005,39:5488-5493.
• [18]Wang X,Cheng S A,Zhang X Y,et al.Impact of salinity on cathode catalyst performance in microbial fuel cells(MFCs)[J].International Journal of Hydrogen Energy,2011,36:13900-13906.
• [19]Mohana D,Pittman C U.Activated carbons and low cost adsorbents for remediation of tri-and hexavalent chromium from water[J].Journal of Hazardous Materials,2006,B137:762-811.
• [20]Li Z J,Zhang X W,Lei L C.Electricity production during the treatment of real electroplating wastewater containing Cr6+using microbial fuel cell[J].Process Biochemistry,2008,43:1352-1358.
• [21]Wang G,Huang L P,Zhang Y F.Cathodic reduction of hexavalent chromium[Cr(VI)]coupled with electricity generation in microbial fuel cells[J].Biotechnology Letters,2008,30:1959-1966.

文章评论(Comment)：