Anaerobic mesophilic digestion of waste activated sludge in the presence of 2,3 ',4,4 ',5-pentachlorobiphenyl

Date

2013-09-01

Author

Kaya, Devrim
İmamoğlu, İpek
Sanin, Faika Dilek

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The aim of this study was to investigate the anaerobic digestion of waste activated sludge in the presence of a model PCB congener, 2,3',4,4',5-pentachlorobiphenyl (PCB-118), and transformer oil (TO), and thereby PCB dechlorination under mesophilic digestion conditions. Two PCB-118 concentrations (1 and 20 mg/L) and one TO concentration (1.52 g/L) were studied. Beside the PCB concentrations, pH, ORP, TS, VS, VSS, TSS, tCOD, and sCOD were monitored throughout the reactor operations (159-day). Methane productions of PCB reactors were considerably lower than that of control reactor (R-C), indicating the negative effect of PCB on methane production. The highest COD removal, 56%, was observed in R-C, followed by 1 and 20 mg/L PCB-118 reactors (46.7% and 40.6% reduction), respectively. VS reductions were between 36 and 52%, with the lower removal in the higher PCB-118 containing reactor. About 12 and 22% PCB-118 removals were attained proportional to their initial concentrations, 1 and 20 mg/L, respectively.

Subject Keywords

Waste Management and Disposal, Microbiology, Biomaterials

URI

https://hdl.handle.net/11511/47788

Journal

INTERNATIONAL BIODETERIORATION & BIODEGRADATION

DOI

https://doi.org/10.1016/j.ibiod.2013.04.003

Collections

Department of Environmental Engineering, Article

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Citation Formats

D. Kaya, İ. İmamoğlu, and F. D. Sanin, “Anaerobic mesophilic digestion of waste activated sludge in the presence of 2,3 ‘,4,4 ’,5-pentachlorobiphenyl,” INTERNATIONAL BIODETERIORATION & BIODEGRADATION, pp. 41–47, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47788.