Abstract: In this study, a new strategy, improving biomass retention with fiber material present within the dairy manure as biofilm carriers, was evaluated for treating flushed dairy manure in a psychrophilic anaerobic sequencing batch reactor (ASBR). A kinetic study was carried out for process control and design by comparing four microbial growth kinetic models, i.e. first order, Grau, Monod and Chen and Hashimoto models. A volumetric methane production rate of 0.24 L/L/d of and a specific methane productivity of 0.19 L/gVSloaded were achieved at 6 days HRT. It was proved that an ASBR using manure fiber as support media not only improved methane production but also reduced the necessary HRT and temperature to achieve a similar treating efficiency compared with current technologies. The kinetic model can be used for design and optimization of the process.
Publication Year: 2013
Publication Date: 2013-03-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 49
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