Biological chromium(VI) reduction in the cathode of a microbial fuel cell

Environmental Science & Technology
Madan TandukarSpyros G Pavlostathis

Abstract

The biocathode of a microbial fuel cell (MFC) offers a promising potential for the reductive treatment of oxidized pollutants. In this study, we demonstrated biological Cr(VI) reduction in the cathode of a MFC and identified putative Cr(VI) reducing microorganisms. The MFC was continuously monitored for Cr(VI) reduction and power generation. Acetate was provided to the anode compartment as substrate and bicarbonate was added to the cathode compartment as the sole external carbon source. The contribution of biomass decay and abiotic processes on Cr(VI) reduction was minimal, confirming that most of the Cr(VI) reduction was assisted by microbial activity in the cathode, which utilizes electrons and protons generated from the oxidation of acetate in the anode compartment. Relatively fast Cr(VI) reduction was observed at initial Cr(VI) concentrations below 80 mg/L. However, at 80 mg Cr(VI)/L, Cr(VI) reduction was extremely slow. A maximum Cr(VI) reduction rate of 0.46 mg Cr(VI)/g VSS.h was achieved, which resulted in a current and power density of 123.4 mA/m(2) and 55.5 mW/m(2), respectively. The reduced chromium was nondetectable in the supernatant of the catholyte which indicated complete removal of chromium as Cr(OH)(3) precipit...Continue Reading

References

Apr 3, 2001·Applied and Environmental Microbiology·T L Marsh, M J McInerney
Nov 19, 2002·Applied Microbiology and Biotechnology·B ChardinM Bruschi
Sep 4, 2004·Applied and Environmental Microbiology·Korneel RabaeyWilly Verstraete
Jan 14, 2005·Applied Microbiology and Biotechnology·Jung Rae KimBruce E Logan
Jun 1, 2005·Trends in Biotechnology·Korneel Rabaey, Willy Verstraete
Jun 24, 2005·Nature·Gemma RegueraDerek R Lovley
Feb 1, 1994·Applied and Environmental Microbiology·D R Lovley, E J Phillips
Mar 28, 2006·Water Research·Jinwook ChungBruce E Rittmann
Jul 20, 2006·Proceedings of the National Academy of Sciences of the United States of America·Yuri A GorbyJim K Fredrickson
Sep 27, 2006·Environmental Science & Technology·Bruce E LoganKorneel Rabaey
Jun 2, 2007·Environmental Science & Technology·Peter ClauwaertWilly Verstraete
Jan 25, 2008·Journal of Hazardous Materials·Alejandro H CaravelliNoemí E Zaritzky
Jun 5, 2008·Environmental Science & Technology·Didem Okutman Tas, Spyros G Pavlostathis
Nov 27, 2008·Environmental Science & Technology·Stefano FreguiaJürg Keller
Feb 5, 2009·Biotechnology and Bioengineering·Prathap ParameswaranBruce E Rittmann
Mar 31, 2009·Nature Reviews. Microbiology·Bruce E Logan

❮ Previous
Next ❯

Citations

Mar 11, 2010·Bioprocess and Biosystems Engineering·Liping HuangFenglin Yang
Jul 21, 2012·Bioprocess and Biosystems Engineering·Sanath Kondaveeti, Booki Min
Sep 3, 2013·Journal of Hazardous Materials·An XueHua-Zhang Zhao
Mar 23, 2013·Environmental Science & Technology·Nikolaos XafeniasCharles J Banks
May 14, 2014·Water Research·Huajun FengJiali Shentu
Jul 4, 2012·Annual Review of Microbiology·Derek R Lovley
Aug 12, 2014·Bioresource Technology·Jeongdong Choi, Yang Liu
Jun 7, 2014·Critical Reviews in Microbiology·Abhilasha Singh Mathuriya, J V Yakhmi
Aug 23, 2012·Journal of Hazardous Materials·Oskar ModinKarin Karlfeldt Fedje
Feb 22, 2011·Current Opinion in Biotechnology·Derek R Lovley, Kelly P Nevin
Mar 11, 2016·Environmental Science & Technology·Nuzahat HabibulGuo-Ping Sheng
Feb 1, 2011·Environmental Microbiology Reports·Derek R Lovley
Mar 24, 2016·Environmental Science and Pollution Research International·Hui WangXianning Li
Jun 28, 2015·Bioresource Technology·Y V NancharaiahP N L Lens
Aug 26, 2014·Bioresource Technology·Chansoo ChoiBongsu Lim
May 16, 2015·Bioresource Technology·Byung Hong KimIn Seop Chang
Apr 19, 2015·Biotechnology Advances·Heming WangZhiyong Jason Ren
Sep 13, 2014·Water Research·Heming Wang, Zhiyong Jason Ren
Aug 6, 2013·Bioresource Technology·Guangcan ZhuSpyros G Pavlostathis
Oct 13, 2016·Environmental Monitoring and Assessment·Hyeonyong ChungKyoungphile Nam
Apr 4, 2017·Environmental Science & Technology·Christy M Dykstra, Spyros G Pavlostathis

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioremediation (ASM)

Bioremediation is the treatment and removal of harmful pollutants or contaminants through the use of microorganisms. Discover the latest research here.

© 2022 Meta ULC. All rights reserved