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题名: Effect of floc structure and strength on membrane permeability in the hybrid coagulation-microfiltration process
作者: Bingqing Zhao; Dongsheng Wang; Tao Li ;Chihpin Huang
刊名: Water Science & Technology: Water Supply
出版日期: 2011-11
期号: 11, 页码:97-105
关键词: cake compressibility, floc strength, floc structure, microfiltration
DOI: 10.2166/ws.2011.014
英文摘要:     The relative importance of floc property on microfiltration and fouling mechanism remains a field of arguments. The effects of floc structure and strength on fouling rate of coagulationmicrofiltration were investigated in dead-end microfiltration. Flocs varying in size, fractal structure and strength were prepared by AlCl3 and PACl (Polyaluminum Chloride) coagulation at various dosages followed by different slow mixing rates and filtration without any sedimentation step. The rates of flux decline for flocs formed under same coagulant dosage but different shear conditions showed only limited size and compactness dependence. However, the floc strength effect on membrane filtration performance was observed clearly with the floc strength constant exhibiting a strong positive linear correlation with the resulted cake compressibility index.
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/37288
Appears in Collections:环境水质学国家重点实验室_期刊论文

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Bingqing Zhao; Dongsheng Wang; Tao Li ;Chihpin Huang. Effect of floc structure and strength on membrane permeability in the hybrid coagulation-microfiltration process[J]. Water Science & Technology: Water Supply,2011(11):97-105.
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