膜科学与技术

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Application of PVDF Hollow Fiber Ultrafiltration Membrane in the Advanced Treatment of Municipal Drinking Water

Authors： ZHEN Zongqing, XI Shaofeng

Units： Suzhou Mohua Technology LTD, Suzhou 215200, P.R.China

KeyWords： thermally induced phase separation; submerged ultrafiltration; membrane flux; turbidity of producing water

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2014,34(4):91-93

Abstract：

The application of membrane separation technology in the project of a water factory in Shanghai was introduced. Submerged ultrafiltration system and PVDF hollow fiber membrane prepared via thermally induced phase separation technology were used in the project. The system was designed with water productivity of 7500m3/d and the design membrane flux of 25L/(m2h). During the continuous operation of the system in 50 days, the transmembrane pressure was 2~3KPa and the turbidity of producing water was 0.03NTU. Backwashing frequency was 16 times per day and backwashing time was 90s. The maintenance cleaning period was 14d. The electricity consumption per ton of water was 0.02KWh. The fact proved that Company products of PVDF hollow fiber ultrafiltration membrane products exhibited the advantages of high strength, large flux and strong antifouling, suggesting higher performance price ratio than foreign products, which can be applied in the advanced treatment of municipal drinking water.

Funds：

国家水体污染控制与治理科技重大专项“饮用水处理用PVDF膜组件及装备产业化”课题（2011ZX07428-001）；膜华科技-上海徐泾水厂合作项目

AuthorIntro：

甄宗晴（1982-），男，江苏沛县，硕士，工程师，主要从事水处理和膜分离的应用研究. 〈zhenzongqing@mail.mohua.net〉

Reference：

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[4] Mastsuyuama H, Maki T，Teramoto M，et al. Effect of polypropylene molecular weight on porous membrane formation by thermally induced phase separation[J]. J Membr Sci, 2002, 204:323-328.

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