Development of a two-stage flexible fibre biofilm reactor for treatment of food processing wastewater

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Title Development of a two-stage flexible fibre biofilm reactor for treatment of food processing wastewater
Author Yu, Jimmy; Xu, Hong; Yao, Deli; Williams, Philip
Journal Name Water Science and Technology
Year Published 2003
Place of publication UK
Publisher IWA Publishing
Abstract Biofilm (or attached growth) reactors can be effectively used to treat organic wastewater from various industries such as food processing industry. They have a number of advantages including high organic loading rates (OLRs) and improved operational stability. A flexible fibre biofim reactor (FFBR) has been developed for efficient and cost effective treatment of food processing wastewater. In the process, simple flexible fibre packing with a very high specific surface area is used as support for microorganisms. The COD removal efficiencies for a range of OLRs have been studied. The FFBR can support an increasingly high OLR, but with a corresponding decrease in the COD removal efficiency. Therefore, a two-stage FFBR was developed to increase the treatment efficiency for systems with high OLRs. Experimental results indicated that a high overall COD removal efficiency could be achieved. At an influent COD of about 2700 mg/L and an OLR of 7.7 kgCOD/m3d, COD removal efficiencies of 76% and 82% were achieved in the first and the second stage of the reactor, respectively. The overall COD removal efficiency was 96%. Therefore, even for wastewater samples with high organic strength, high quality treated effluents could be readily achieved by the use of multiple stage FFBRs.
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Copyright Statement Copyright IWA Publishing 2003. The definitive peer-reviewed and edited version of this article is published in Water Science and Technology, 47, 11, 189-194, 2003 and is available at
Volume 47
Issue Number 11
Page from 189
Page to 194
ISSN 0273-1223
Date Accessioned 2003-11-25
Language en_AU
Faculty Faculty of Environmental Sciences
Subject PRE2009-Environmental Technologies
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1a

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