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Performance evaluation of a two-phase anaerobic digestion process of synthetic domestic wastewater at ambient temperature

Guerrero, L., Montalvo, S., Coronado, E., Chamy, R., Porrier, P., Crutchik, D., Sanchez, E., De la Rubia Romero, M.A. and Borja, R. (2009) Performance evaluation of a two-phase anaerobic digestion process of synthetic domestic wastewater at ambient temperature Journal of Environmental Science and Health, Part A. Toxic/Hazardous Substances and Environmental Engineering, 44, (7), pp. 673-681. (doi:10.1080/10934520902847794).

Record type: Article


A two-phase anaerobic digestion process of synthetic domestic wastewater was studied at ambient temperature in mild to cold climates. The hydrolytic stage was carried out in a continuous stirred tank reactor with an effective volume of 1.2 L. The hydrolytic reactor operated at hydraulic retention times (HRTs) in the range of 1.3 to 2.7 h, which allowed for optimum HRT to be obtained in order to achieve a maximum amount of soluble COD. For the methanogenic stage, an up-flow anaerobic filter with a volume of 1.35 L and corrugated plastic rings as biomass immobilization support were used. During the investigation, the ambient temperature ranged between 21°C and 24°C. Synthetic domestic wastewater with a COD of 700 mg/L was used as substrate. The study was performed at total organic loading rates (OLRT) of 2.0-4.3 g COD/L· d, with a global HRT (including both hydrolytic and methanogenic stages) of 2.8-5.8 hours. A maximum percentage of organic matter removed of 88% was achieved at a global HRT of 5.8 hours. Under these operating conditions, the production of biogas was 97% higher than that obtained in the one-phase anaerobic digestion process. Additionally, the kinetics involved in the hydrolytic stage was determined using the Contois kinetic model, which adequately predicted the experimental results.

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Published date: June 2009
Keywords: two-phase anaerobic digestion, hydrolytic stage, methanogenic stage, kinetics, synthetic domestic wastewater


Local EPrints ID: 74343
ISSN: 1093-4529
PURE UUID: d36f8fc7-bc1e-41e7-95eb-ce8581fd79b6

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:46

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Author: L. Guerrero
Author: S. Montalvo
Author: E. Coronado
Author: R. Chamy
Author: P. Porrier
Author: D. Crutchik
Author: E. Sanchez
Author: M.A. De la Rubia Romero
Author: R. Borja

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