Lookup NU author(s): Shreeshivadasan Chelliapan,
Dr Paul Sallis
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The effects of different hydraulic retention time (HRT) on (RS)-MCPP utilisation was investigated by decreasing the feed flow rate in an anaerobic membrane bioreactor (AnMBR). Results showed an average COD removal efficiency of 91.4%, 96.9% and 94.4% when the reactor was operated at HRT 3, 7 and 17 d, respectively. However, when the HRT was reduced to 1 d, the COD removal efficiency declined to just only 60%, confirming the AnMBR is stable to a large transient hydraulic shock loads. The (RS)-MCPP removal efficiency fluctuated from 6% to 39% at HRT 3 d, however when it was increased to 7 and 17 d, the removal efficiency increased to an average of 60% and 74.5%. In addition, (RS)-MCPP specific utilisation rates (SUR) were dependent on the HRT and gradually improved from 18 to 43 mu g mgVSS(-1) d(-1) as flow rate increased. (C) 2011 Elsevier Ltd. All rights reserved.
Author(s): Yuzir A, Chelliapan S, Sallis PJ
Publication type: Article
Publication status: Published
Journal: Bioresource Technology
Print publication date: 03/08/2011
ISSN (print): 0960-8524
ISSN (electronic): 1873-2976
Publisher: Elsevier BV
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