Modeling of mixed liquor inorganic suspended solids and membrane flux at different ratio of SRT to HRT in a submerged membrane bioreactor

被引：7
作者：
Chen, Zhao-Bo [1 ,2 ]
Chen, Zhi-Qiang [1 ]
Ren, Nan-Qi [1 ]
Wang, Hong-Cheng [2 ]
Nie, Shu-Kai [2 ]
Cui, Min-Hua [2 ]
机构：
[1] HIT, SKLUWRE, Harbin 150090, Peoples R China
[2] Harbin Engn Univ, Sch Chem Engn & Mat Sci, Harbin 150001, Peoples R China
来源：
APPLIED MATHEMATICAL MODELLING | 2012年 / 36卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Submerged membrane bioreactor; Traditional Chinese medicine wastewater; Mixed liquor inorganic suspended solids; Membrane flux; Mathematical model; ACTIVATED-SLUDGE SYSTEM; DOMESTIC WASTE-WATER; EXTRACELLULAR POLYMERS; FILTRATION; SEPARATION; PERFORMANCE; PRESSURE; REMOVAL;
D O I：
10.1016/j.apm.2011.05.043
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to investigate the influence of mixed liquor inorganic suspended solids (MLISS) on membrane flux at different ratio of sludge retention time (SRT) to hydraulic retention time (HRT) in a submerged membrane bioreactor (SMBR), a pilot scale test was conducted for 452 days using traditional Chinese medicine (TCM) wastewater as influent. SRT/HRT was controlled at 150, 480 and 750, respectively. The experimental results showed that the average values of MLISS were 1271.9, 1664.5 and 6898.8 mg/L at different SRT/HRT, respectively; MLISS were accumulated from 265.5 g/h to 4912.93 g/h, which indicated that SMBR could not steadily operate for a long period without sludge withdrawal. Sludge oxygen utilized rate (SOUR) decreased from 5.115 to 1.292 mgO(2)/(gVSS h) and volume oxygen utilized rate (VOUR) increased from 10.84 to 18.13 mgO(2)/(L h). Model of membrane flux and MLISS were developed under different temperature and operational pressure by regressions, which were then satisfactorily employed to predict the trend of membrane flux during the experiment. (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码：173 / 182
页数：10
相关论文
共 31 条
[1]  
[Anonymous], 1995, Standard methods for examination of water and waste water, V19th
[2]  
Brindle K, 1996, BIOTECHNOL BIOENG, V49, P601, DOI 10.1002/(SICI)1097-0290(19960320)49:6<601::AID-BIT1>3.0.CO
[3]  
2-S
[4]   Treatment of domestic wastewater by using a microaerobic membrane bioreactor [J].
Chu, LB ;
Zhang, XW ;
Yang, FL ;
Li, XH .
DESALINATION, 2006, 189 (1-3) :181-192
[5]  
Clech P. L., 2003, J MEMBRANE SCI, V218, P117
[6]   Reversibility of fouling formed in activated sludge filtration [J].
Defrance, L ;
Jaffrin, MY .
JOURNAL OF MEMBRANE SCIENCE, 1999, 157 (01) :73-84
[7]  
Dufresne R, 1998, TAPPI J, V81, P131
[8]   A predictive model for the reactor inorganic suspended solids concentration in activated sludge systems [J].
Ekama, GA ;
Wentzel, MC .
WATER RESEARCH, 2004, 38 (19) :4093-4106
[9]   Nitrification and sludge characteristics in a submerged membrane bioreactor on synthetic inorganic wastewater [J].
Gao, MC ;
Min, Y ;
Li, HY ;
Wang, YM ;
Feng, P .
DESALINATION, 2004, 170 (02) :177-185
[10]  
Halil H., 2002, DESALINATION, V150, P263
1234