Anaerobic digestion of organic solid wastes: process behaviour in transient conditions
Bolzonella, D, Battistoni, P, Mata-Alvarez, J and Cecchi, F (2003) Anaerobic digestion of organic solid wastes: process behaviour in transient conditions. Water Science & Technology, 48, (4), 1-8.
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Official URL: http://dx.doi.org/
Description/Abstract
This paper presents the study of the variations of the process parameters during transient conditions when substrates with different biodegradability were fed to a pilot-scale anaerobic digester. The two substrates used in the experiments were the mechanically selected organic fraction of municipal solid wastes and a blend of mechanically selected and separately collected organic fraction of municipal solid wastes. Two transient conditions were studied: the mesophilic-thermophilic passage and the increase of the organic loading rate in thermophilic conditions. It was shown that enhanced fractions of biodegradable substrates determined a greater perturbation of the system and needed longer time to reach a new stable condition. The volatile fatty acids concentration and their indirect measure, alkalinity determined upon pH 4, was the more useful parameter to understand the process behaviour because of its sensitivity to the process variations.
| Item Type: | Article |
|---|---|
| ISSN: | 0273-1223 (print) |
| Related URLs: | http://www.iwaponline.com/wst/...040001.htm |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences |
| Divisions: | University Structure - Pre August 2011 > School of Civil Engineering and the Environment |
| ePrint ID: | 189039 |
| URI: | http://eprints.soton.ac.uk/id/eprint/189039 |
| Deposited On: | 31 May 2011 14:54 |
| Last Modified: | 31 May 2011 14:54 |
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