| Treatment of Chinese traditional medicine wastewater in a submerged membrane bioreactor |
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| 作者姓名： | 任南琪 陈兆波 张颖 呼冬雪 |
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| 作者单位： | Research Center of Environmental Biotechnology School of Municipal and Environmental Engineering Harbin Institute of Technology，Research Center of Environmental Biotechnology School of Municipal and Environmental Engineering Harbin Institute of Technology，School of Resource and Environment Northeast Agricultural University，Research Center of Environmental Biotechnology School of Municipal and Environmental Engineering Harbin Institute of Technology，Harbin 150090 China，Harbin 150090 China，Harbin 150030 China，Harbin 150090 China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | Submerged membrane bioreactor(SMBR)is animprovement of the conventional activated sludgeprocesses,where the traditional secondary clarifier isreplaced by a membrane unit for the separation of trea-ted water from the mixed solution in the bioreac-tor1-3].…
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| 关 键 词： | 膜生物反应器 淤泥 废水处理 医药行业 |
| 文章编号： | 1005-9113（2007）01-0089-04 |
| 收稿时间： | 2004-03-16 |
Treatment of Chinese traditional medicine wastewater in a submerged membrane bioreactor |
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| REN Nan-qi,CHEN Zhao-bo,ZHANG Ying,HU Dong-xue.Treatment of Chinese traditional medicine wastewater in a submerged membrane bioreactor[J].Journal of Harbin Institute of Technology,2007,14(1):89-92. |
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| Authors: | REN Nan-qi CHEN Zhao-bo ZHANG Ying HU Dong-xue |
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| Abstract: | A pilot scale test was conducted in a submerged membrane bioreactor SMBR with capacity of 10.0 m3/d for 120 days to treat high-strength Chinese traditional medicine wastewater. Performance of the SMBR was investigated with a sludge retention time ( TSR ) of 50 days, a hydraulic retention time ( THR ) of 8. 0 h, membrane flux of 8. 0 L/( m2 · h) and dissolved oxygen (DO) concentration of 2.0 - 3.0 mg/L, respectively. It was observed that the SMBR had high capacity of COD and suspended solid (SS) removal. The influent COD concentration was fluctuated between 1 000 and 5 000 mg/L, while the averaged effluent COD concentration was only 44.6 mg/L. The influent SS concentration was fluctuated between 1 000 and 1 600 mg/L, while little effluent SS was detected. It was found that the COD remove rate increased with mixed liquor suspended solids (MLSS) and organic loading rate (ROL). In order to obtain good-quality effluent, the operational conditions of the SMBR were suggested as follows: the temperature was controlled above 10 ℃, MLSS about 7000 mg/L, ROL under 24. 76 kg/( m3 · d) , low vacuum value and constant water flux. |
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| Keywords: | submerged membrane bioreactor (SMBR) Chinese traditional medicine wastewater mixed liquor suspended solids (MLSS) organic loading rate (ROL) pilot plant test |
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