Assessment of Sediment Remediation Potential using Microbial Fuel Cell Technology

Bio-electrical responses obtained from freshwater sediments by employing microbial fuel cell (MFC) technology were investigated in this experimental study. During the electricity generation, organic matter in the sediment was microbially oxidized under anaerobic conditions with an electrode serving as a terminal electron acceptor. It was found that the sediment organic matter (SOM) associated with electrochemically-active electrodes became more humified, aromatic, and polydispersed, and had a higher average molecular weight, together with the decrease in the quantity of SOM. The alteration of characteristics of the SOM was analogous to that commonly observed in the early stage of SOM diagenetic process (i.e., humification). These findings including an elevation of the sediment redox potential present a possibility of the MFC technology as a new soil/sediment remediation technique based on its potential benefits: non-destructive electricity generation and bioremediation.




References:
[1] U. Schröder, "Anodic electron transfer mechanisms in microbial fuel cells
and their energy efficiency," Phys. Chem. Chem. Phys., vol. 9, no. 21, pp.
2619-2629, Jun. 2007.
[2] B. H. Kim, H. J. Kim, M. S. Hyun, and D. H. Park, "Direct electrode
reaction of Fe(III)-reducing bacterium, Shewanella putrefaciens," J.
Microbiol. Biotechnol., vol. 9, no. 2, pp. 127-131, Apr. 1999.
[3] S. K. Chaudhuri and D. R. Lovley, "Electricity generation by direct
oxidation of glucose in mediatorless microbial fuel cells," Nat.
Biotechnol., vol. 21, no. 10, pp. 1229-1232, Oct. 2003.
[4] B. E. Logan, C. Murano, K. Scott, N. D. Gray, and I. M. Head, "Electricity
generation from cysteine in a microbial fuel cell," Water Res., vol. 39, no.
5, pp. 942-952, Mar. 2005.
[5] D. E. Holmes, J. S. Nicoll, D. R. Bond, and D. R. Lovley, "Potential role
of a novel psychrotolerant member of the family Geobacteraceae,
Geopsychrobacter electrodiphilus gen. nov., sp nov., in electricity
production by a marine sediment fuel cell," Appl. Environ. Microbiol., vol.
70, no. 10, pp. 6023-6030, Oct. 2004.
[6] M. J. Cope, "Products of natural burning as a component of the dispersed
organic matter of sedimentary rocks," in Organic Maturation Studies and
Fossil Fuel Exploration, J. Brooks, Ed. London: Academic Press, 1981,
pp. 89-109.
[7] R. V. Tyson, Sedimentary Organic Matter: organic facies and
palynofacies. London: Chapman & Hall, 1995.
[8] C. E. Reimers, L. M. Tender, S. Fertig, and W. Wang, "Harvesting energy
from the marine sediment-water interface," Environ. Sci. Technol., vol. 35,
no. 1, pp. 192-195, Jan. 2001.
[9] D. R. Bond, D. E. Holmes, L. M. Tender, and D. R. Lovley,
"Electrode-reducing microorganisms that harvest energy from marine
sediments," Science, vol. 295, no. 5554, pp. 483-485, Jan. 2002.
[10] D. H. Loring and R. T. T. Rantala, "Manual for the geochemical analyses
of marine-sediments and suspended particulate matter," Earth-Sci. Rev.,
vol. 32, no. 4, pp. 235-283, Jul. 1992.
[11] N. Senesi and E. Loffredo, "The chemistry of soil organic matter," in Soil
Physical Chemistry, D. L. Sparks, Ed. Florida: CRC Press, 1999, pp.
331-332.
[12] D. E. Caldwell, D. R. Korber, and J. R. Lawrence, "Imaging of
bacterial-cells by fluorescence exclusion using scanning confocal laser
microscopy," J. Microbiol. Methods, vol. 15, no. 4, pp. 249-261, Jun.
1992.
[13] I. S. Chang, H. Moon, O. Bretschger, J. K. Jang, H. I. Park, K. H. Nealson,
and B. H. Kim, "Electrochemically active bacteria (EAB) and
mediator-less microbial fuel cells," J. Microbiol. Biotechnol., vol. 16, no.
2, pp. 163-177, Feb. 2006.
[14] S. Mathieu and P. Etienne, "Estimation of wastewater biodegradable
COD fractions by combining respirometric experiments in various So/Xo
ratios," Water Res., vol. 34, no. 4, pp. 1233-1246, Mar. 2000.
[15] S. K. Kim, J. R. Oh, W. J. Shim, D. H. Lee, U. H. Yim, S. H. Hong, Y. B.
Shin, and D. S. Lee, "Geographical distribution and accumulation features
of organochlorine residues in bivalves from coastal areas of South
Korea," Mar. Pollut. Bull., vol. 45, no. Sp. Iss. SI, pp. 268-279, 2002.
[16] L. De Schamphelaire, L. Van den Bossche, H. S. Dang, M. Hofte, N.
Boon, K. Rabaey, and W. Werstraete, "Microbial fuel cells generating
electricity from rhizodeposits of rice plants," Environ. Sci. Technol., vol.
42, no. 8, pp. 3053-3058, Apr. 2008.
[17] L. Bengtsson and M. Enell, "Chemical analysis," in Handbook of
Holocene Palaeoecology and Palaeohydrology, B. E. Berglund, Ed.
Chichester: John Wiley & Sons, 1986.
[18] G. J. Farquhar and F. A. Rovers, "Gas production during refuse
decomposition," Water Air Soil Pollut., vol. 2, no. 4, pp. 483-495, Dec.
1973.
[19] T. G. Stevenson, Humus chemistry, genesis, composition, and reactions.
New York: John Wiley & Sons, Inc., 1982.
[20] G. R. Aiken, D. M. Mcknight, R. L. Wershaw, and P. MacCarthy, Humic
substances in soil, sediment, and water, geochemistry, isolation, and
characterization. New York: John Wiley & Sons, Inc., 1985.
[21] J. L. Weishaar, G. R. Aiken, B. A. Bergamaschi, M. S. Fram, R. Fujii, and
K. Mopper, "Evaluation of specific ultraviolet absorbance as an indicator
of the chemical composition and reactivity of dissolved organic carbon,"
Environ. Sci. Technol., vol. 37, no. 20, pp. 4702-4708, Oct. 2003.
[22] M. D. Krom and E. R. Sholkovitz, "Nature and reactions of dissolved
organic matter in the interstitial waters of marine sediments," Geochim.
Cosmochim. Acta., vol. 41, no. 11, pp. 1565-1573, Nov. 1977.
[23] Y. P. Chin, G. R. Aiken, and K. M. Danielsen, "Binding of pyrene to
aquatic and commercial humic substances: The role of molecular weight
and aromaticity," Environ. Sci. Technol., vol.31, no. 6, pp. 1630-1635,
Jun. 1997.
[24] R. M. Allen and H. P. Bennetto, "Microbial fuel-cells: Electricity
production from carbohydrates," Appl. Biochem. Biotechnol., vol. 39-40,
no. 1, pp. 27-40, Sep. 1993.
[25] S. E. Oh and B. E. Logan, "Proton exchange membrane and electrode
surface areas as factors that affect power generation in microbial fuel
cells," Appl. Microbiol. Biotechnol., vol. 70, no. 2, pp. 162-169, Mar.
2006.
[26] S. H. Zinder, T. Anguish, and S. C. Cardwell, "Selective inhibition by
2-bromoethanesulfonate of methanogenesis from acetate in a
thermophilic anaerobic digestor," Appl. Environ. Microbiol., vol. 47, no.
6, pp. 1343-1345, Jun. 1984.
[27] F. H. Chapelle and D. R. Lovley, "Competitive-exclusion of sulfate
reduction by Fe(III)-reducing bacteria: a mechanism for producing
discrete zones of high-iron ground water," Ground Water, vol. 30, no. 1,
pp. 29-36, Jan. 1992.
[28] C. E. Milliken and H. D. May, "Sustained generation of electricity by the
spore-forming, Gram-positive, Desulfitobacterium hafniense strain
DCB2," Appl. Microbiol. Biotechnol., vol. 73, no. 5, pp. 1180-1189, Jan.
2007.
[29] B. H. Kim, H. S. Park, H. J. Kim, G. T. Kim, I. S. Chang, J. Lee, and N. T.
Phung, "Enrichment of microbial community generating electricity using
a fuel-cell-type electrochemical cell," Appl. Microbiol. Biotechnol., vol.
63, no. 6, pp. 672-681, Feb. 2004.