PMID: 18186351Jan 12, 2008Paper

Electricity generation from synthetic acid-mine drainage (AMD) water using fuel cell technologies

Environmental Science & Technology
Shaoan ChengBruce E Logan

Abstract

Acid-mine drainage (AMD) is difficult and costly to treat. We investigated a new approach to AMD treatment using fuel cell technologies to generate electricity while removing iron from the water. Utilizing a recently developed microbial fuel cell architecture, we developed an acid-mine drainage fuel cell (AMD-FC) capable of abiotic electricity generation. The AMD-FC operated in fed-batch mode generated a maximum power density of 290 mW/m2 at a Coulombic efficiency greater than 97%. Ferrous iron was completely removed through oxidation to insoluble Fe(III), forming a precipitate in the bottom of the anode chamber and on the anode electrode. Several factors were examined to determine their effect on operation, including pH, ferrous iron concentration, and solution chemistry. Optimum conditions were a pH of 6.3 and a ferrous iron concentration above approximately 0.0036 M. These results suggest that fuel cell technologies can be used not only for treating AMD through removal of metals from solution, but also for producing useful products such as electricity and recoverable metals. Advances being made in wastewater fuel cells will enable more efficient power generation and systems suitable for scale-up.

References

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Citations

Apr 15, 2010·Biofouling·Benjamin ErableKeith Scott
Dec 3, 2014·Journal of Hazardous Materials·Mira L K SulonenJaakko A Puhakka
Oct 23, 2012·Journal of Hazardous Materials·Olivier LefebvreHow Yong Ng
Aug 28, 2012·Bioresource Technology·Ilgook KimJong-In Han
Nov 7, 2009·Bioresource Technology·Deepak PantKarolien Vanbroekhoven
Oct 5, 2011·Letters in Applied Microbiology·B C JongM R Awang
Oct 12, 2013·Biotechnology Advances·Heming Wang, Zhiyong Jason Ren
Jun 27, 2014·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Surajbhan Sevda, T R Sreekrishnan
Jun 23, 2018·Biotechnology & Genetic Engineering Reviews·Muhammad Mohsin JavedSana Zahoor
Sep 13, 2011·Water Environment Research : a Research Publication of the Water Environment Federation·Zhihua LiangZhiqiang Hu
Dec 21, 2017·Applied Microbiology and Biotechnology·Sudharsanam AbinandanMallavarapu Megharaj
Jun 24, 2017·Frontiers in Microbiology·Qian LiuDefeng Xing
Jul 27, 2012·ChemSusChem·Karnit BahartanLital Alfonta
Jul 3, 2020·Environmental Science and Pollution Research International·Isabel Cristina Braga Rodrigues, Versiane A Leão

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