| 分体式膜-生物反应器在废水处理中的工艺条件 |
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| 引用本文： | 吕红,徐又一,朱宝库,谢柏明,徐志康.分体式膜-生物反应器在废水处理中的工艺条件[J].环境科学,2003,24(3):61-64. |
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| 作者姓名： | 吕红 徐又一 朱宝库 谢柏明 徐志康 |
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| 作者单位： | 浙江大学高分子科学与工程学系,杭州,310027 |
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| 基金项目： | 国家自然科学基金资助项目(59833120) |
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| 摘 要： | 对分体式膜-生物反应器(RMBR)处理废水进行了研究.进水CODCr:312～584mg/L,RMBR的出水CODCr在运行4d后＜15 mg/L并稳定.向生物反应器添加0.5g/L(混合液)的粉末活性炭(PAC)后出水CODCr＜4.22mg/L.膜侧污水流速在0.9～1.9m/s范围内,临界膜通量随膜侧污水流速的增大而增大.添加PAC,组合添加PAC和Al2(SO4)3·18 H2O均可有效提高临界膜通量.在膜侧流速1.9m/s的条件下,临界膜通量从72L/(m2·h)分别增至76L/(m2·h)和81 L/(m2·h)在22℃～30℃范围内,每升高1℃可提高膜通量1.9%.在连续运行100d中,RMBR可在无任何物理,化学清洗的条件下运行14d而透膜压力无增大,膜通量不降低.对于已污染的膜,水清洗、水碱共间清洗、水碱酸共同清洗可分别恢复至新膜膜通量的47%、83%、94%.
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| 关 键 词： | 分体式膜生物反应器 污水处理 膜污染 临界膜通量 |
| 文章编号： | 0250-3301(2003)03-04-0061 |
| 收稿时间： | 2002/6/27 0:00:00 |
| 修稿时间： | 2002年6月27日 |
Processing Conditions of Recirculated MBR for Wastewater Treatment |
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| Lü Hong,Xu Youyi,Zhu Baoku,Xu Zhikang,Xie Boming.Processing Conditions of Recirculated MBR for Wastewater Treatment[J].Chinese Journal of Environmental Science,2003,24(3):61-64. |
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| Authors: | Lü Hong Xu Youyi Zhu Baoku Xu Zhikang Xie Boming |
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| Institution: | Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China. |
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| Abstract: | In this paper, wastewater was treated with Recirculated Membrane Bio-Reactor (RMBR) and effluent quality became stable after four days running continuously. Critical membrane flux was increased with increasing crossflow velocity between 0.9-1.9 m/s. Under crossflow velocity of 1.9 m/s, critical membrane flux was enhanced from 72 L/(m2.h) to 76 L/(m2.h) or 81 L/(m2.h) respectively when powdered activated carbon (PAC) or both PAC and alum were added to the system. Between 22 degrees C-30 degrees C, the flux was elevated 1.9% per 1 degree C increased. Fouling materials were removed efficiently through cleaning physically or/and chemically with flux recovery of 47%-94%. |
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| Keywords: | recirculated membrane bioreactor wastewater treatment membrane fouling critical membrane flux |
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