Performance of a hybrid anaerobic reactor, combining a sludge blanket and a filter, treating slaughterhouse wastewater


Borja, R., Banks, C. J. and Wang, Z. (1995) Performance of a hybrid anaerobic reactor, combining a sludge blanket and a filter, treating slaughterhouse wastewater. Applied Microbiology and Biotechnology, 43, (2), 351-357. (doi:10.1007/BF00172838).

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Description/Abstract

A column reactor, in which the bottom two-thirds were occupied by a sludge blanket and the upper one-third by submerged clay rings, was evaluated using slaughterhouse wastewater as substrate. The reactor was operated at 35°C at loading rates varying from 5 g to 45 g chemical oxygen demand (COD) 1–1 × day–1 at an influent concentration of 2450 mg COD 1–1. A maximum substrate removal rate of 32 g COD 1–1 × day–1, coupled with a methane production rate of 6.91 × 1–1 × day–1 (STP), was obtained. This removal rate is significantly higher than those previously reported. The rate of substrate utilization by the biomass was 1.22 g COD (g volatile suspended solids)–1 day–1. COD removal was over 96% with loading rates up to 25 g COD 1–1 × day–1, at higher loading rates performance decreased rapidly. It was found that the filter element of the reactor was highly efficient in retaining biomass, leading to a biomass accumulation yield coefficient of 0.029 g volatile suspended solids g–1 COD, higher than reported previously for either upflow anaerobic sludge-blanket reactors or anaerobic filters operating independently

Item Type: Article
ISSNs: 0175-7598 (print)
1432-0614 (electronic)
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
T Technology > TD Environmental technology. Sanitary engineering
Divisions: University Structure - Pre August 2011 > School of Civil Engineering and the Environment
ePrint ID: 75503
Date Deposited: 11 Mar 2010
Last Modified: 27 Mar 2014 18:54
URI: http://eprints.soton.ac.uk/id/eprint/75503

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