Effects of Media Characteristics on Performance of Upflow Anaerobic Packed-Bed Reactors
Publication: Journal of Environmental Engineering
Volume 122, Issue 6
Abstract
The effects of media specific surface area, porosity, pore size as well as the role of suspended biomass on the performance of upflow anaerobic packed-bed reactors (APBRs) treating synthetic protein-carbohydrate waste were examined in the laboratory. The results showed that the reactor packed with media of the largest media pore size and porosity demonstrated the highest chemical oxygen demand (COD) removal efficiencies at loading rates of 8, 12, and 16 g COD/L/d. An increase of over 40% in specific surface area in an APBR had not improved the removal efficiency, instead it produced 16% lower in COD removal efficiency at loading rate of 16 g COD/L/d. The superiority in treatment performance of the media having the largest porosity and pore size indicates that, a substantial amount of the COD removal was associated with the suspended biomass entrapped at the interstitial void spaces within the media. The amount of methane production associated with the suspended biomass determined from a batch serum bottle test was as high as 56% at 12 g COD/L/d and increased to 58% at higher loading rate of 16 g COD/L/d. The results suggest that media pore size and porosity play a more significant role than media specific surface area in the performance of upflow APBRs.
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References
1.
American Public Health Association. (1992). Standard methods for the examination of water and wastewater, 18th Ed., Washington, D.C.
2.
Breitenbucher, K., Siegl, M., Knupfer, A., and Radke, M.(1990). “Open-pore sintered glass as a high-efficiency support medium in bioreactors: new results and long-term experiences achieved in high-rate anaerobic digestion.”Water Sci. and Technol., 22(1/2), 25–32.
3.
Chiang, C. F., and Dague, R. R. (1988). “Determination of acetoclastic methanogenic activity in anaerobic systems.”Proc., 43rd Industrial Waste Conf., Purdue Univ., West Lafayette, Ind., 353–362.
4.
Fox, P., and Suidan, M. T.(1990). “Batch tests to determine activity distribution and kinetic parameters for acetate utilization in expanded-bed anaerobic reactors.”Appl. Envir. Microbiol., 56, 887–894.
5.
Hudson, J. W., Pohland, F. G., and Pendergrass, R. P. (1978). “Anaerobic packed column treatment of shellfish processing wastewater.”Proc., 33rd Industrial Waste Conf., Purdue Univ., West Lafayette, Ind.
6.
Hulshoff Pol., L. W., Heijnekamp, K., and Lettinga, G. (1987). “The selection pressure as a driving force behind the granulation of anaerobic sludge.”Granular anaerobic sludge: microbiology and technology, Proc., GASMAT-workshop, G. Lettinga et al., eds., Luntenen, The Netherlands, 153–161.
7.
Kennedy, K. J., and van den Berg, L. (1985). “Anaerobic downflow stationary fixed film reactors.”Comprehensive Biotechnol., Vol. 4, Pergamon Press, Oxford, 1027–1049.
8.
McCarty, P. L. (1966). “Anaerobic treatment of soluble wastes.”Paper presented at the special lecture series on advances in water quality improvement. Univ. of Texas, Austin, Tex.
9.
Mueller, J. A., and Mancini, J. L. (1975). “Anaerobic filter-kinetics and applications.”Proc., 30th Industrial Waste Conf., Purdue Univ., West Lafayette, Ind.
10.
Murray, W. D., and van den Berg, L.(1981). “Effects of support material on the development of microbial fixed film converting acetic acid to methane.”Appl. Bacteriology, 51, 257–265.
11.
Oleszkiewicz, J. A., Hall, E. R., and Oziemblo, Z. J.(1986). “Performance of laboratory anaerobic hybrid reactors with varying depths of media.”Envir. Technol. Lett., 7, 445.
12.
Owen, W. F., Stuckey, D. C., Healy, J. B. Jr., Young, L. Y., and McCarty, P. L.(1979). “Bioassay for monitoring biochemical methane potential and anaerobic toxicity.”Water Res., 13, 485.
13.
Reynolds, P. J. (1986). “Support matrix and feed flow effects in anaerobic fixed bed reactors,” PhD thesis, National Univ. Ireland, Dublin, Ireland.
14.
Song, K. H., and Young, J. C.(1986). “Media design factors for fixed-bed anaerobic filters.”J. Water Pollution Control Federation, 58(2), 115–121.
15.
Van den Berg, L., and Lentz, C. P. (1979). “Comparison between upand down-flow anaerobic fixed film reactors of varying surface-to-volume ratios for the treatment of bean blanching waste.”Proc., 34th Industrial Waste Conf., Purdue Univ., West Lafayette, Ind., 319–325.
16.
Weiland, P., and Wulfert, K. (1988). “Anaerobic treatment of stillage using different pilot-scale fixed bed reactors in up and downflow mode of operation.”Proc., 5th Int. Symp. on Anaerobic Digestion, Bologna, Italy, 147–154.
17.
Wilkie, A., and Colleran, E.(1984). “Start-up of anaerobic filter containing different support materials using pig slurry supernatant.”Biotechnol. Lett., 6, 735.
18.
Wilkie, A., et al. (1983). “Media effects in anaerobic filters.”Proc., AWWT Symp. in Anaerobic Waste Water Treatment, TNO, The Hague, Netherlands, 242.
19.
Young, J. C. (1968). “The anaerobic filter for waste treatment,” PhD thesis, Stanford Univ., Stanford, Calif.
20.
Young, J. C., and Dahab, M. F. (1982). “Retention and distribution of biological solids in fixed-bed anaerobic filters.”Proc., 1st Int. Conf. Fixed-Film Biol. Processes, Kings Island, Ohio.
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Copyright © 1996 American Society of Civil Engineers.
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Published online: Jun 1, 1996
Published in print: Jun 1996
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