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Effect of organic loading rate on anaerobic treatment of slaughterhouse wastewater in a fluidised bed reactor

Borja, Rafael, Banks, Charles J. and Wang, Zhengjian (1995) Effect of organic loading rate on anaerobic treatment of slaughterhouse wastewater in a fluidised bed reactor Bioresource Technology, 52, (2), pp. 157-162. (doi:10.1016/0960-8524(95)00017-9).

Record type: Article


COD removed efficiencies in the range 75·0NDASH;98·9% were achieved in an anaerobic fluidised-bed reactor treating slaughterhouse wastewater, when evaluated at organic loading rates (OLR) of between 2·9 and 54·0 g COD/l.d, hydraulic retention times (HRT) of between 0·5 and 8 h and feed COD concentrations of between 250 and 4500 mg/l. More than 94% of feed COD could be removed up to OLR of about 27 g COD/l.d. Up to 0·320 litres of methane were produced per gram of COD removed and this methane production rate was independent of the OLR applied in this investigation. Volatile fatty acid (VFA) concentration in the reactor increased sharply at an OLR of about 30 g COD/l.d and, therefore, sufficient alkalinity should be provided to prevent pH from dropping to an undesirable level. The anaerobic fluidised-bed system can be operated at a significantly higher liquid throughput than other previously reported systems while maintaining its excellent efficiency.

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Published date: 1995
Keywords: anaerobic fluidised-bed reactor, slaughterhouse wastewater, substrate conversion, gas production, organic loading rates


Local EPrints ID: 75492
ISSN: 0960-8524
PURE UUID: 900ccb74-e0f6-4bbe-8e9d-cc019e0bf8ae

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

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Author: Rafael Borja
Author: Zhengjian Wang

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