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《China Water & Wastewater》 2013-20
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Optimization of Operating Conditions of Coagulation and Ultrafiltration Combined Process

CHEN Yi-qing;LI Feng;QIAO Tie-jun;YING Hai-quan;LI Wen-long;ZHANG Jin-song;School of Construction and Environmental Engineering;Shenzhen Graduate School;Shenzhen Water <Group> Co. Ltd.;  
The combined process of coagulation and immersed ultrafiltration was investigated for the optimization of polyaluminium chloride( PAC) dosage and aeration intensity based on the removal of organics and membrane fouling control. The results showed that the absolute value of Zeta potential decreased,and the removal of particle counts and COD Mn increased when the air-water ratio in membrane tank was 12 ∶ 1,and PAC dosage was 0 mg / L,3 mg / L and 4 mg / L respectively. The absolute value of Zeta potential increased,and the removal of particle counts and COD Mn decreased when increasing PAC dosage to 5 mg / L. The absolute value of Zeta potential decreased,and the removal of particle counts and COD Mn increased when PAC dosage was 4 mg / L,and the air-water ratio in membrane tank was 7. 5 ∶ 1, 9 ∶ 1 and 12 ∶ 1 respectively. The absolute value of Zeta potential increased,and the removal of particle counts and COD Mn decreased when increasing the air-water ratio to 15 ∶ 1. Addition of PAC and aeration
【Fund】: 国家水体污染控制与治理科技重大专项(2009ZX07423-003);; 广东省科技计划项目(2012B010500031);; 深圳市科技研发资金基础研究计划项目(JC201105201234A)
【CateGory Index】: X703
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