Abstract
The impact of electric fields on some environmental conditions and on the activity of anaerobic microorganisms was investigated in this study. Experiments were conducted in plexiglass chambers with coated titanium mesh electrodes mounted on either end. Electric fields of 1.5 V/cm through 6 V/cm were applied. Anaerobic cultures (primarily a consortium with methane producing bacteria) obtained from a mesophilic digester from the Redhook Wastewater Treatment Plant, Brooklyn, were used in these experiments. Results indicated that the pH decreased to as low as 4.5 even under completely mixed conditions in fed-batch reactors, if pH-control measures were not in place. Microbial activity, measured as a function of the ability of the anaerobic microorganisms to consume readily degradable acetate, generally decreased as expected if the pH and dissolved oxygen were not controlled. Using sodium sulfite slightly in excess of the stoichiometric amount and sodium bicarbonate, both pH variation as well as oxygen generation were adequately controlled. Microbial activity initially decreased under exposure to electric current but recovered after a period of several hours of exposure, suggesting a degree of acclimation of the anaerobic culture to the electric current.
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References
Acar, Y.B. and Alshawabkeh, A. (1993) “Principles of electrokinetic remediation,” Env. Sci. & Technol., Vol. 27, No. 13, pp. 2638–2647.
Acar, Y.B. and Alshawabkeh, A. (1996) “Electrokinetic remediation: I. Pilot-scale tests with lead spiked kaolinite,” J. of Geotech. Eng.,” ASCE, Vol. 122, No. 3, pp. 173–185.
Acar, Y.B. and Zappi, M. (1995) “Infrastructural needs in waste containment and environmental restoration,” J, of Infrastructural Systems,” ASCE, Vol. 1, No. 2, pp. 82–91.
Acar, Y.B., Li, H., and Gale, R.J. (1992) “Phenol removal from kaolinite by electrokinetics,” J. of Geotech. Eng. Vol. 118, Nov. 1992, pp. 1837–1852
Acar, Y.B., Ozsu, E.E., Alshawabkeh, A.N., Fazle R.M., and Gale, R. (1996) “Enhanced soil Bioremediation with electric fields,” CHEMTECH, American Chemical Society, April 1996, Vol. 26, No. 4, pp. 40–44.
Acar, Y.B., Gale, R.J., Putnam, G., and Hamed, J.T. (1989) ”Electrochemical Processing of Soils: Its Potential Use in Environmental Geotechnology and Significance of pH Gradients,” 2nd International Symposium on Environmental Geotechnology, Shanghai, China, May 14–17, Envo Publishing, Bethlehem, PA, Vol. 1, pp. 25–38.
Alshawabkeh, A.N. and Acar, Y.B. (1992) “Removal of Contaminants from Soils by Electrokinetics: A Theoretical Treatise,” J. of Env. Sci. & Health, A 27(7), pp. 1835–1861.
Alshawabkeh, A. and Acar, Y.B. (1996) “Electrokinetic remediation: II. Theoretical model, J. of Geotech. Eng., ASCE, Vol. 122, No. 3, pp. 186–196.
Bruell, C.J., Segall, B.A., and Walsh, M.T. (1992) “Electroosmotic removal of gasoline hydrocarbons and TCE from clay,” J. of Env. Eng. v. 118, Jan./Feb. 1992, pp. 68–83.
DeFlaunn, M. and Condee, C. (1997) “Electrokinetic transport of bacteria,” J. of Hazardous Materials. v. 55, Aug. 1997, pp. 263–277.
DOE/EM-0232 (1995) “Estimating the Cold War Mortgage, VolumeI” The 1995 Baseline Environmental Management Report, US Department of Energy, March 1995.
Eykholt, J. and Daniel, D.E. (1994) “Impact of System Chemistry on Electroosmosis in Contaminated Soil,” ASCE, J. of Geotech. Eng., V. 120(5). May, pp. 797–815.
Gaudy, A.F. and Gaudy, E.T. (1988) Elements of Bioenvironmental Engineering, Engineering Press, Inc., San Jose, California, 592p.
Hamed, J., Acar, Y.B., and Gale, R.J. (1991) “Pb(II) Removal from Kaolinite Using Electrokinetics,” ASCE, Journal of Geotechnical Engineering, Vol. 112, February, pp. 241–271.
Ho, S.V., Athmer, P.W., Sheridan, P.W., and Shapiro, A. (1997) “Scale-up Aspects of the Lasagna Processfor in-situ Soil Remediation,” J. of Haz. Materials, Special Edition on Electrochemical Decontamination of Soil and Water, Edited by Yalcin B. Acar and Akram N. Alshawabkeh, pp. 39–60.
Lageman, (1993) “Electro-Reclamation,” Environ. Sci. & Techno]., V61.27, No. 13, pp.2648–2650.
Maillacheruvu, K.Y. and Parkin, G.F. (1996) “Kinetics of growth, substrate utilization and sulfide toxicity for propionate, acetate and hydrogen utilizers in anaerobic systems,” Water Env. Res., 68(7), 1099–1106, November–December, 1996.
Maillacheruvu, K.Y., Parkin, G.F., Peng, C.Y., Kuo, W.C., Oonge, Z.J., and Lebduschka, V. (1993) “Sulfide toxicity in anaerobic systems fed sulfate and various organics,” Water Environ. Res., 65(2), 100–109, March–April, 1993.
Mitchell, J.K. (1993) Fundamentals of Soil Behavior, John Wiley and Sons, New York, 437p.
NRC (1993) In-situ bioremediation: when does it work? National Research Council, National Academy Press, Washington D.C., 1993, 207p.
Probstein, R.F. and Hicks, R.E. (1993) “Removal of Contaminants from Soils by Electric Fields,” Science, 1993, 260, pp. 498–504.
Runnels, D.D. and Wahli, C. (1993) “In Situ Electromigration as a Method for Removing Sulfate,Metals, and Other Contaminants from Groundwater,” Groundwater Monitoring Review, Winter 1993, pp. 121–129.
Shapiro, A.P., Renauld, P., and Probstein, R. (1989) “Preliminary studies on the removal of chemical species from saturated porous media by electro-osmosis,” Physicochemical Hydrodynamics, 11, No. 5/6, pp. 785–802.
Zappi, M., Gunnison, D., Pennington, J., Cullinane, J., Teeter, C.L., Brannon, J.M., and Myers, T. (1993) “Technical approach for in-situ biological treatment research: bench-scale experiments,” US Army Corpsof Engineers, Waterways Experiment Station, Vicksburg, MS, August 1993, Technical Report No. IRP.93-3.
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Maillacheruvu, K., Alshawabkeh, A.N. (2002). Anaerobic Microbial Activity Under Electric Fields. In: Tedder, D.W., Pohland, F.G. (eds) Emerging Technologies in Hazardous Waste Management 8. Springer, Boston, MA. https://doi.org/10.1007/0-306-46921-9_7
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