Operation of a Novel Anaerobic Biofilter for Treating Food-Processing Wastewater
An anaerobic biofilter was operated with 4500 mg COD/L food-processing waste water, fed at 10 d of hydraulic retention time (HRT). In 45 d after seeding, established biofilms were dominated by dense layers of Methanococcus-like and Methanothrix-likecells. The average COD and grease removal efficiencies were 85 and 53%, respectively, when the HRT was decreased stepwise to 1.5 d. Immobilized biofilms enabled the biofilter to be started up easily, to have stable treatment performance, and to recover rapidly from shock loadings and process failure.
Index EntriesAnaerobic biofilter food-processing waste water grease removal shock loading process recovery
Unable to display preview. Download preview PDF.
- 3.Kirsop, B. H., Hilton, M. G., Powell, G., and Archer, D. (1984), Methods for Env. Biotechnol. 8, 139–158.Google Scholar
- 4.Hawkes, F. R. and Hawkes, D. L. (1987), in Basic Biotechnology, Bu’lock, J. and Kristiansen, B., eds., Academic, London, pp. 337–358.Google Scholar
- 5.Kandler, J. and Kormi, I. (1977), Biotechnol. Bioeng. 17, 1173–1185.Google Scholar
- 6.APHA (1992) Standard Methods for Examination of Waste and Wastewater, 18th ed., APHA, AWWA, WPCF, Washington, DC.Google Scholar
- 7.Sachs, E. F., Jennet, J. C., and Rand, M. C. (1982), ASCE J. Env. Eng. 108(EE2), Apr. 297–314.Google Scholar
- 8.Chua, H., Yap, M. G. S., and Ng, W. J. (1994), IChemE Symp. Ser. 137, 101–109.Google Scholar
- 9.Novak, J. T. and Carlson, D. A. (1970), J. WPCF 42(11), 1932–1943.Google Scholar
- 13.Chua, H. and Fung, J. (1995), in Packed-Bed of Anaerobic Fixed Film Reactor, Appropriate Waste Management Technologies for Developing Countries, Khanna, P. and Kaul, S. N., eds., Indus Consulting Intl., pp. 13–21.Google Scholar
- 14.Zeikus, J. G. (1979), in Anaerobic Digestion, Stafford, D. A., Wheatley, B. I., and Hughes, D. E., eds., Applied Science Publishers Ltd., pp. 61–89.Google Scholar