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

被引：9
作者：
Yuzir, Ali [2 ]
Chelliapan, Shreeshivadasan [1 ]
Sallis, Paul J. [3 ]
机构：
[1] Univ Teknol Malaysia, UTM Razak Sch Engn & Adv Technol, Kuala Lumpur 54100, Malaysia
[2] Univ Teknol Malaysia, Dept Environm Engn, Fac Civil Engn, Skudai 81310, Malaysia
[3] Newcastle Univ, Environm Engn Grp, Sch Civil Engn & Geosci, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
来源：
BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 20期
关键词：
Anaerobic membrane bioreactor; (RS)-MCPP; Hydraulic retention time; WASTE-WATER TREATMENT; MICROBIAL PRODUCTS SMP; LIMESTONE AQUIFER; BAFFLED REACTOR; SURFACE WATERS; HERBICIDES; MECOPROP; DICHLORPROP; PERFORMANCE; SEWAGE;
D O I：
10.1016/j.biortech.2011.07.083
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
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.
引用
收藏
页码：9456 / 9461
页数：6
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