期刊
DESALINATION
卷 287, 期 -, 页码 116-122出版社
ELSEVIER
DOI: 10.1016/j.desal.2011.07.030
关键词
Membrane bioreactor; Organic characteristics; Foulant; Hydraulic retention time
资金
- Australian Research Council (ARC) [LP0989685]
- Australian Research Council [LP0989685] Funding Source: Australian Research Council
The influence of hydraulic retention time (HRT) in a submerged hollow fibre membrane bioreactor was studied by conducting experiments at four different HRTs (4, 2, 1.3 and 1 h) at room temperature of 25 degrees C. It was found that a shorter HRT led to a higher development of trans-membrane pressure. The highest sludge cake and pore-blocking resistances of 4.02 x 10(11) m(-1) and 0.77 x 10(11) m(-1) respectively were noted for the shortest HRT (of 1 h) application. UV and fluorescence spectroscopy analyses showed that the nature of organics in the biomass and sludge cakes were different. The organic fraction analysis by liquid chromatography with organic carbon detector (LC-OCD) showed a significant amount of biopolymers and a lower amount of humics for longer HRT. (C) 2011 Elsevier B.V. All rights reserved.
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