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Anaerobic digestion of slaughterhouse wastewater using a combination sludge blanket and filter arrangement in a single reactor

Record type: Article

A laboratory-scale anaerobic reactor, in which the bottom two-thirds were occupied by a sludge blanket and the upper one-third by submerged small cubes of polyurethane foam, was evaluated for the anaerobic treatment of slaughterhouse wastewater. The reactor was operated at 35°C during the two experimental studies. In the first study, the chemical oxygen demand (COD) concentration of the wastewater was increased from 3·74 to 10·41 g l?1 whilst maintaining a constant hydraulic retention time (HRT) of 1·5 days. In the second, the HRT was decreased from 1·35 to 0·50 days, whilst maintaining a constant influent COD concentration of 10·41 g l?1.

The results showed that this type of reactor was suitable for the anaerobic treatment of this wastewater and demonstrated a high COD removal of between 90·2 and 93·4% at organic loading rates between 2·49 and 20·82 g COD l?1 day?1. At an HRT of 0·5 days, the reactor achieved a methane yield of 0·345 l CH4 STP per gram of COD removed. This yield is higher than the values reported in previous studies.

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Citation

Borja, Rafael, Banks, Charles J., Wang, Zhengjian and Mancha, Angela (1998) Anaerobic digestion of slaughterhouse wastewater using a combination sludge blanket and filter arrangement in a single reactor Bioresource Technology, 65, (1-2), pp. 125-133. (doi:10.1016/S0960-8524(98)00004-2).

More information

Published date: July 1998
Keywords: anaerobic digestion, slaughterhouse wastewater, sludge blanket, filter, combination

Identifiers

Local EPrints ID: 75481
URI: http://eprints.soton.ac.uk/id/eprint/75481
ISSN: 0960-8524
PURE UUID: 9aea262a-c4f1-4469-b083-5c6999a74237

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:43

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Contributors

Author: Rafael Borja
Author: Zhengjian Wang
Author: Angela Mancha

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