Removal of Heavy Metals and COD by SRB in UAFF Reactor
Publication: Journal of Environmental Engineering
Volume 125, Issue 6
Abstract
Sulfate-reducing bacteria, under anaerobic conditions, reduce sulfate, , to sulfide, S−2, which in turn can effectively precipitate heavy metals. In this research project, sulfate-reducing bacteria were grown in an upflow anaerobic fixed-film (UAFF) reactor using optimum growth conditions obtained in previous studies. These reactors were then fed with different heavy metals at increasing loading rates until complete failure occurred as metal removal reached zero and residual sulfide dropped to zero. The metal concentrations were measured as total, dissolved, and free ions both in the influent and in the effluent streams. The results of this research showed that 100% removal efficiencies could be obtained with individual concentrations up to 200 mg/L for Cu, 150 mg/L for Ni and Zn, 75 mg/L for Cr, 50 mg/L for Cd, and 40 mg/L for Pb. Also, the corresponding organic matter removal as total organic carbon was found to be about 50% of the influent total organic carbon. A set of mathematical equations were derived to express the mass balance inside the UAFF reactor, with respect to metal influent concentrations and sulfide production. These equations were corrected by incorporating a correction product, α⋅β, to represent the toxicity effect of the increasing metal concentrations.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Bhattacharya, S. K., Leslie, R. E., and Madura, R. L. ( 1995). “Effects of bioavailable cadmium on anaerobic systems.” J. Water Envir. Res., 67(7), 1092–1094.
2.
Brock, T., David, S., and Michael, M. ( 1984). Biology of microorganisms, 4th Ed., Prentice-Hall, Englewood Cliffs, N.J.
3.
Dovark, D. H., Edenborn, H. M., Hedin, R. S., and Mclntire, P. E. ( 1991). “Treatment of metal contaminated water using bacterial sulfate reduction: Results from pilot-scale reactors.” Proc., Society of Mining Engineers of AIME, Littleton, Colo., 91–123.
4.
El Bayoumy, M. A., Bewtra, J. K., Ali, H. I., and Biswas, N. ( 1996). “Acetate utilization by sulfate reducing bacteria in an UAFF reactor.” Proc., 1st Conf. on Health, Devel., and Envir., Alexandria University, Alexandria, Egypt.
5.
El Bayoumy, M. A., Bewtra, J. K., Ali, H. I., and Biswas, N. ( 1999). “Lactate utilization by sulfate reducing bacteria in an UAFF reactor.” J. Water, Air and Soil Pollution, Dorderecht, The Netherlands, 112(1-2), 67–84.
6.
Gundry, M. J., Henry, J. G., and Prasad, D. ( 1989). “Treating electroplating wastewater using an anaerobic filter.” Proc., 44th Industrial Waste Conf., Purdue University, Lafayette, Ind., 279–285.
7.
Harada, H., Uemura, S., and Momonoi, K. ( 1994). “Interaction between sulfate reducing bacteria and methane producing bacteria in UASB reactors fed with low strength wastes containing different levels of sulphate.” J. Water Res., London, 28(2), 335–367.
8.
Kroiss, H., Plahl-Wabnegg, F., and Savardal, K. ( 1985). “Anaerobic treatment of viscose wastewater.” J. Water Sci. and Technol., London, 17(1), 231–239.
9.
Lappan, R. E. ( 1987). “Anaerobic treatment of metal plating wastewater,” MASc thesis, University of Windsor, Windsor, Ont., Canada.
10.
Lawrence, A., and McCarty, P. ( 1965). “The role of sulfide in preventing heavy metal toxicity in anaerobic treatment.” J. Water Pollution Control Fedn., 37(3), 392–406.
11.
McCartney D. M., Marstaller, T., Henrichs, D. M., and Oleszkiewiez, J. A. ( 1989). “Sulfide inhibition of propionate utilization in anaerobic treatment of lactate and acetate.” Proc., 44th Industrial Waste Conf., Purdue University, Lafayette, Ind., 279–285.
12.
Postgate, J. R. ( 1984). The sulfate reducing bacteria, 2nd Ed., Cambridge University Press, Cambridge, U.K.
13.
Standard methods for the examination of water and wastewater, 18th Ed. (1992). American Public Health Association, American Waterworks Association, and Water Pollution Control Federation, Baltimore, Md.
14.
Wang, P. ( 1993). “Study on removing hexavelant chromium by sulfate reducing bacteria.” J. Envir. Sci., Beijing, 14(6), 1–4.
15.
Wijaya, S. ( 1993). “Optimization of dissolved heavy metals removal using sulfate reducing bacteria,” MASc thesis, University of Windsor, Windsor, Ont., Canada.
Information & Authors
Information
Published In
History
Received: Sep 24, 1996
Published online: Jun 1, 1999
Published in print: Jun 1999
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.