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Influence of step increases in hydraulic retention time on (RS)-MCPP degradation using an anaerobic membrane bioreactor

Yuzir, Ali and Chelliapan, Shreeshivadasan and Sallis, Paul J. (2011) Influence of step increases in hydraulic retention time on (RS)-MCPP degradation using an anaerobic membrane bioreactor. Bioresource Technology, 102 (20). pp. 9456-9461. ISSN 0960-8524

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Abstract

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 µg mgVSS-1 d-1 as flow rate increased.

Item Type:Article
Uncontrolled Keywords:aerobic membrane bioreactor
Subjects:H Social Sciences > HD Industries. Land use. Labor
Divisions:Razak School of Engineering and Advanced Technology
ID Code:44986
Deposited By: Haliza Zainal
Deposited On:27 Apr 2015 12:49
Last Modified:20 Sep 2017 11:33

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