| DOI | Resolve DOI: https://doi.org/10.1002/jctb.4224 |
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| Author | Search for: Tartakovsky, Boris1; Search for: Mehta, Punita2; Search for: Santoyo, Guido3; Search for: Roy, Caroline1; Search for: Frigon, Jean-Claude1; Search for: Guiot, Serge R.1 |
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| Affiliation | - National Research Council of Canada. Energy, Mining and Environment
- National Research Council of Canada. Business Management Support
- National Research Council of Canada. NRC Biotechnology Research Institute
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| Format | Text, Article |
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| Subject | Co-digestion; Cow manure; Micro aerobics; Switchgrass; Water electrolysis; Anaerobic digestion; Panicum virgatum |
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| Abstract | BACKGROUND: Anaerobic digestion of agricultural wastes is a cost effective way for combining resource recovery and methane production. This paper evaluates the co-digestion of cow manure and switchgrass in a completely stirred tank reactor (CSTR) by the electrolysis-enhanced anaerobic digestion (eAD) process. RESULTS: The electrodes for water electrolysis were installed directly in an anaerobic digester and were used to create micro-aerobic conditions. Significant gains in process performance and biogas quality were obtained at current densities of 20-25 mA LR-1 (per digester volume) with a corresponding volumetric energy consumption of 0.07-0.08 Wh LR-1. In particular, the COD removal rate was increased from 0.6 to 0.9 g COD LR-1 d-1, methane production increased by 26%, and H2S content in the biogas declined from 2500-3000 ppm to less than 10 ppm. CONCLUSIONS: The improved performance was achieved due to methane production from hydrolytic H2 and possibly due to the enhanced hydrolysis of organic matter. |
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| Publication date | 2014-10 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21275489 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 5299d9ab-c55b-48cb-b099-85b5abe8fbf6 |
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| Record created | 2015-07-14 |
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| Record modified | 2020-04-22 |
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