Journal article
Kinetics of psychrophilic anaerobic sequencing batch reactor treating flushed dairy manure
Bioresource technology, Vol.131, pp.6-12
03/2013
Handle:
https://hdl.handle.net/2376/110353
PMID: 23340098
Abstract
► A new biomass retention strategy for solids containing influent was presented. ► Influent solids were used as natural biofilm support media for high rate digestion. ► The technology showed a good performance despite short HRT and low temperature. ► There is free of clogging hazard in biofilm support media caused by manure fiber. ► Four microbial growth kinetic models were compared for biofilm kinetics study.
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 0.24L/L/d of and a specific methane productivity of 0.19L/gVSloaded were achieved at 6days 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.
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Details
- Title
- Kinetics of psychrophilic anaerobic sequencing batch reactor treating flushed dairy manure
- Creators
- Jingwei Ma - Department of Biological Systems Engineering, Washington State University, Pullman, WA 99164, USALiang Yu - Department of Biological Systems Engineering, Washington State University, Pullman, WA 99164, USACraig Frear - Department of Biological Systems Engineering, Washington State University, Pullman, WA 99164, USAQuanbao Zhao - Department of Biological Systems Engineering, Washington State University, Pullman, WA 99164, USAXiujin Li - Center for Resources and Environmental Research, Beijing University of Chemical Technology, Beijing 100029, ChinaShulin Chen - Department of Biological Systems Engineering, Washington State University, Pullman, WA 99164, USA
- Publication Details
- Bioresource technology, Vol.131, pp.6-12
- Academic Unit
- Biological Systems Engineering, Department of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900547028801842
- Language
- English
- Resource Type
- Journal article