The effect of calcium on the anaerobic digestion treating swine wastewater
SCIE
SCOPUS
- Title
- The effect of calcium on the anaerobic digestion treating swine wastewater
- Authors
- Ahn, JH; Do, TH; Kim, SD; Hwang, S
- Date Issued
- 2006-05-01
- Publisher
- ELSEVIER SCIENCE SA
- Abstract
- A series of experiments with 0, 1, 3,5, and 7 g Ca2+/l using calcium chloride were performed to evaluate the effect of various calcium concentrations on anaerobic digestion of swine wastewater. The addition of 3 g/l gave the best performance. On the other hand, the calcium concentrations of 5-7 g/l had an inhibitory effect on anaerobiosis. The lag phase durations expected in biogas production were 28-31 days with the addition of 0-3 g/l of calcium, and 43-52 days for calcium concentrations of 5 g/l or more. The concentrations of total volatile fatty acids decreased to less than 100 mg/l with calcium concentrations of 3-7 g/l. On the other hand, propionate and i-valerate concentrations remained over 4 and 0.8 g/l, respectively, when 1 g/l or less of calcium was added. (c) 2006 Elsevier B.V. All rights reserved.
- Keywords
- anaerobic digestion; batch; calcium; lipid; swine wastewater; VFAs; CHAIN FATTY-ACIDS; SLUDGE; INHIBITION; METHANOGENESIS; REACTORS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/24014
- DOI
- 10.1016/j.bej.2006.01.014
- ISSN
- 1369-703X
- Article Type
- Article
- Citation
- BIOCHEMICAL ENGINEERING JOURNAL, vol. 30, no. 1, page. 33 - 38, 2006-05-01
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- There are no files associated with this item.
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