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Pentachlorophenol Removal via Adsorption and Biodegradation

Authors: Rakmi Abd.-Rahman, Nurina Anuar


Removal of PCP by a system combining biodegradation by biofilm and adsorption was investigated here. Three studies were conducted employing batch tests, sequencing batch reactor (SBR) and continuous biofilm activated carbon column reactor (BACCOR). The combination of biofilm-GAC batch process removed about 30% more PCP than GAC adsorption alone. For the SBR processes, both the suspended and attached biomass could remove more than 90% of the PCP after acclimatisation. BACCOR was able to remove more than 98% of PCP-Na at concentrations ranging from 10 to 100 mg/L, at empty bed contact time (EBCT) ranging from 0.75 to 4 hours. Pure and mixed cultures from BACCOR were tested for use of PCP as sole carbon and energy source under aerobic conditions. The isolates were able to degrade up to 42% of PCP under aerobic conditions in pure cultures. However, mixed cultures were found able to degrade more than 99% PCP indicating interdependence of species.

Keywords: Identification, biodegradation, Adsorption, pentachlorophenol, isolated bacteria

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[1] Apajalahti, J.H.A. & Salkinojaa-Salonen, M.S. 1986. Degradation of polychlorinated phenols by Rhodococcus chlorophenolicus. Appl. Microbiol. Biotechnol. 25:62-67.
[2] Apajalahti, J.H.A. & Salkinoja-Salonen, M.S. 1987. Dechlorination and para-hydroxylation of polychlorinated phenols by Rhodococcus chlorophenolicus. J. Bacteriol. 169:675-681.
[3] Boyd, S.A.; & Shelton, D.R. 1984. Anaerobic biodegradation of chlorinated phenols in fresh and acclimated sludge. Appl. And Envromental Microbiology.
[4] Haggblom M.M. 1988. Degradation and Transformation of Chlorinated Phenolic Compounds by Strains of Rhodococcus and Mycobacterium. Academic dissertation. Univ. of Helsinki. Finland.
[5] Haggblom M.M., Nohynek, L.J. & Salkinoja-Salonen, M.S. 1988. Degradation and O-methylation of chlorinated phenolic compounds by Rhodococcus & Mycobacterium strains. Appl. Environ. Microbiol. 54:3043-3052.
[6] Hakulinen, R. & Salkinoja-Salonen, M. 1981. An aerobic fluidised bed reactor for the treatment of industrial wastewater containing chlorophenols. In: Biological fluidised bed treatment of water and wastewater, P.F. Cooper & B. Atkinson (Ed.) Ellis Horwood Publ., Chichester. Pp. 374-382.
[7] Lowry, J.D. & Burkhead, C.E. (1980). The role of adsorption in biologically extended carbon columns. J. WPCF, 562:143-151.
[8] Mikesell, M.D. & Boyd, S.A.1986.Complete reductive dechlorination and mineralization of pentachlorophenol by anaerobic microorganisms. Appl. Environ. Microbiol, 52:861-865.
[9] Moos, L.P., Kirsch, E.J., Wukasch, R.F., & Grady, C.P.L. Jr. 1983. Pentachlorophenol biodegradation I. Water Sci. 17:1575-1584.
[10] Olmstead, K.P. and Weber, W.J. (1991). Interactions between microorganisms and activated carbon in waer and waste tratment operations. Chem.. Eng. Commun., 108, 113-125.
[11] Rodman, C.A. & Shunney, E.L. 1970. A new concept for the biological treatment of textile finishing wastes. Chem. Eng. Prog. Symp. Ser. 67107,451-457.
[12] Perroti, A.E., Rodman, C.A. (1974). Factor involved with the biological regeneration of activated carbon, AIChE Symp. Ser., 70144, 317-325.
[13] Reiner, E.A., Chu, J. & Kirsch, E.J. 1978. Microbial metabolism of pentachlorophenol. In Pentachlorophenol Chemistry, Pharmacology and Toxicity (Edited by Rao, R.). pp67-81. Plenum Press, New York.
[14] Steirt, J.G. & Crawford, R.L. 1986. Catabolism of pentachlorophenol by a Flavobacterium sp. Biochem. Bio-phys. Res. Commun. 141:825- 830.
[15] Suflita, J.M., Horowitz, A., Shelton, & Tiedje, J.M. 1982. Dehalogenation: A Novel pathway for the anaerobic biodegradation of haloaromatic compounds. Science:218:1115-1117.
[16] Tsuno, H. Masasumi, K. & Somiya, I. Anaerobic degradation of pentachlorophenol (PCP) in biological expanded-bed reactor. Wat. Sci. Tech. 34:335-344. (1996).
[17] Walker, G.M and Weatherley, L.F. (1999). Biological activated carbon treatment of industrial wastewater in stirred tank reactors. Chemical engineering Journal, 75, 201-206.