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Modeling Microbial Kinetics in an Anaerobic Sequencing Batch Reactor - Model Development and Experimental Validation

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Abstract:

Anaerobic sequencing batch reactors (ANSBRs) typically have not been used to treat wastewater, possibly because of the potential rapid acidification that may occur with batch feeding of an anaerobic reactor. To investigate ANSBR capabilities, a simulation model was developed and experimentally validated. The model explicitly considers different microbial populations in an anaerobic community, predicts formation and consumption of intermediate products as a function of hydrogen partial pressure, predicts system pH, and considers inhibition caused by pH and hydrogen partial pressure. Simulation model results agreed well with experimental results from three separate tests using a laboratory-scale ANSBR receiving glucose. Experimental and simulation results indicated that, for the same organic loading rate, reactor performance improved with a slower fill cycle. The model may be used to rapidly identify other opportunities to improve the capability of ANSBRs to treat a variety of wastewater types.

Keywords: ANAEROBIC TREATMENT; GLUCOSE; MODELING; SEQUENCING BATCH REACTOR; SIMULATION; VOLATILE FATTY ACIDS

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/106143096X122366

Publication date: November 1, 1999

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  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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