Pilot Study of Ultrafiltration-Nanofiltration Process for the Treatment of Raw Water from Huangpu River in China

Jianping  ZHOU; Naiyun  GAO; Guangyong  PENG; Yang  DENG

doi:10.4236/jwarp.2009.13025

Jianping ZHOU, Naiyun GAO, Guangyong PENG, Yang DENG

Abstract: Pilot-scale test was carried out to evaluate the performance of a combined ultrafiltration (UF)-nanofiltration (NF) membrane process for the treatment of raw water from Huangpu River, Shanghai, in China. Results showed that UF could significantly remove turbidity, iron and manganese, and also could retain a part of high molecular weight (MW) organic compounds. Subsequently, NF could further reject low MW organics and inorganic salts, and ensured the treated water to reach the Standards for Drinking Water Quality in China. It seemed that 90 L/m²&#183h was an appropriate permeate flux for UF system when the raw water was directly filtered by UF membrane, the addition of coagulant (alum or ferric chloride) was not preferable to mitigate the fouling of the UF membrane. After near 120 days operation, the permeate flux of NF could be main-tained at 24-25 L/m²&#183h steadily, and no chemical clean was required.

Keywords: Ultrafiltration, Nanofiltration, Permeate Flux, Fouling

Cite this paper: J. ZHOU, N. GAO, G. PENG and Y. DENG, "Pilot Study of Ultrafiltration-Nanofiltration Process for the Treatment of Raw Water from Huangpu River in China," Journal of Water Resource and Protection, Vol. 1 No. 3, 2009, pp. 203-209. doi: 10.4236/jwarp.2009.13025.

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