| 超滤处理含聚污水过程中通量衰减机理的研究 |
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| 引用本文： | 王北福,于水利,镇祥华,荆国林. 超滤处理含聚污水过程中通量衰减机理的研究[J]. 环境科学学报, 2007, 27(4): 568-574 |
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| 作者姓名： | 王北福 于水利 镇祥华 荆国林 |
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| 作者单位： | 哈尔滨工业大学,市政环境工程学院,哈尔滨,150090;哈尔滨工业大学,市政环境工程学院,哈尔滨,150090;哈尔滨工业大学,市政环境工程学院,哈尔滨,150090;哈尔滨工业大学,市政环境工程学院,哈尔滨,150090 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 研究了超滤处理含聚合物污水过程中操作压力、膜面流速、聚合物浓度、料液流变性、阻力等影响因素对膜通量的影响,并进行理论分析,揭示了通量衰减机理.研究结果表明,通量衰减的机理是聚合物的浓差极化和凝胶层的形成,其次是原油和无机物对膜孔的堵塞.
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| 关 键 词： | 超滤 含聚污水 通量衰减 浓差极化 凝胶层形成 膜孔堵塞 |
| 文章编号： | 0253-2468(2007)04-0568-07 |
| 收稿时间： | 2006-04-15 |
| 修稿时间： | 2006-04-15 |
Mechanism of UF membrane flux decline in process of polymer-contained sewage |
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| WANG Beifu,YU Shuili,ZHEN Xianghua and JING Guolin. Mechanism of UF membrane flux decline in process of polymer-contained sewage[J]. Acta Scientiae Circumstantiae, 2007, 27(4): 568-574 |
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| Authors: | WANG Beifu YU Shuili ZHEN Xianghua JING Guolin |
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| Affiliation: | School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090 |
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| Abstract: | There is a lot of polymer-contained sewage produced from polymer flooding process in Daqing oilfield. As polymer is the main factor that determines the water characteristics, the mechanism of UF flux influenced by polymer-contained sewage is different from that done by common oil-contained sewage. The mechanism of flux decline was showed through theoretically analyzing in terms of feed-water rheology, operation pressure, cross-flow velocity, polymer concentration and various resistances. The results indicated that the mechanism of flux decline was resulted by concentration polarization and gel layer formation of polymer, and the other reason was that crude oil and inorganic matter plugged membrane pores. |
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| Keywords: | ultrafiltration polymer-contained sewage flux decline concentration polarization gel layer formation membrane pore plugging |
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