Kinetic evaluation and performance of a mesophilic anaerobic contact reactor treating medium-strength food-processing wastewater

High rate mesophilic anaerobic contact reactors (MACR) represent a proven sustainable technology for a wide range of different industrial effluents. These reactors demonstrate quite similar features to their aerobic counterparts, activated sludge systems. A lab-scale high rate mesophilic anaerobic c...

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Bibliographic Details
Published in:Bioresource technology 2010-06, Vol.101 (11), p.3970-3977
Main Authors: Şentürk, E., İnce, M., Onkal Engin, G.
Format: Article
Language:English
Subjects:
Anaerobic contact reactor
anaerobic digestion
Anaerobiosis
Applied sciences
biodegradation
Biofuels
Biological and medical sciences
Bioreactors
Biotechnology
chemical oxygen demand
Contact
Crack opening displacement
Effluents
Exact sciences and technology
Fatty acids
Fatty Acids, Volatile - biosynthesis
Food industries
Food Industry
food processing wastes
Fundamental and applied biological sciences. Psychology
Grau second-order multi-component substrate removal model
industrial effluents
Industrial Waste
Kinetic evaluation
Kinetics
Mesophilic
mesophilic anaerobic contact reactors
Methane
methane production
Methods. Procedures. Technologies
Michaelis-Menten model
Organic loading rate
Pollution
Reaction kinetics
Reactors
Solanum tuberosum
Stover-Kincannon model
substrate balance model
Various methods and equipments
Volatile fatty acids
Waste water
wastewater treatment
Wastewaters
Water Pollutants - metabolism
Water treatment and pollution
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Summary:High rate mesophilic anaerobic contact reactors (MACR) represent a proven sustainable technology for a wide range of different industrial effluents. These reactors demonstrate quite similar features to their aerobic counterparts, activated sludge systems. A lab-scale high rate mesophilic anaerobic contact reactor was operated with wastewater originated from a potato-processing plant, at six different loading rates of 1.1–5 g COD/L per day. The operational performance of MACR was monitored from start-up by assessing COD removal efficiency, total volatile fatty acid production and biogas composition. Furthermore, various kinetic models have been successfully applied to the experimental data to determine substrate balance, maximum utilization rate and volumetric methane production. The COD removal efficiencies were found to be 78–92% and the methane percentage of the biogas produced was 80–89%. Additionally, the methane yield coefficient was found to be 0.394 L CH 4/gTCOD rem.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2010.01.034