title: Anaerobic degradation of palm oil mill effluent (POME).
abstract: The biodegradation characteristics of palm oil mill effluent (POME) and the related microbial community were studied in both actual sequential anaerobic ponds in Malaysia and enrichment cultures. The significant degradation of the POME was observed in the second pond, in which the temperature was 35-37 °C. In this pond, biodegradation of major long chain fatty acids (LCFA), such as palmitic acid (C16:0) and oleic acid (C18:1), was also confirmed. The enrichment culture experiment was conducted with different feeding substrates, i.e. POME, C16:0 and C18:1, at 35 °C. Good recovery of methane indicated biodegradation of feeds in the POME and C16:0 enrichments. The methane production rate of the C18:1 enrichment was slower than other substrates and inhibition of methanogenesis was frequently observed. Denaturing gradient gel electrophoresis (DGGE) analyses indicated the existence of LCFA-degrading bacteria, such as the genus Syntrophus and Syntorophomonas, in all enrichment cultures operated at 35 °C. Anaerobic degradation of the POME under mesophilic conditions was stably processed as compared with thermophilic conditions.
authors: Department of Environmental Engineering, King Mongkut's University of Technology Thonburi, Bangkok, Thailand. wilasinee.yoo@kmutt.ac.th
authors: W
authors: W
authors: Yoochatchaval
authors: S
authors: S
authors: Kumakura
authors: D
authors: D
authors: Tanikawa
authors: T
authors: T
authors: Yamaguchi
authors: M F M
authors: MF
authors: Yunus
authors: S S
authors: SS
authors: Chen
authors: K
authors: K
authors: Kubota
authors: H
authors: H
authors: Harada
authors: K
authors: K
authors: Syutsubo
mesh_terms: D000693:Anaerobiosis; D001421:Bacteria, Anaerobic / Q000254:growth & development*; D001673:Biodegradation, Environmental; D057919:Biological Oxygen Demand Analysis; D007220:Industrial Waste / Q000517:prevention & control*; D008296:Malaysia; D019301:Oleic Acid / Q000032:analysis; D000073878:Palm Oil; D019308:Palmitic Acid / Q000032:analysis; D010938:Plant Oils; D061005:Ponds / Q000737:chemistry / Q000382:microbiology; D012722:Sewage / Q000382:microbiology*; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D007220:Industrial Waste; D010938:Plant Oils; D012722:Sewage; D014874:Water Pollutants, Chemical; D019301:Oleic Acid; D019308:Palmitic Acid; D000073878:Palm Oil