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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2002, Vol. 3 Issue (3): 268-271    DOI: 10.1631/jzus.2002.0268
Energy & Environmental Engineering     
SC response characteristics of two kinds of coagulant
YANG Wan-dong, SONG Shuang, SHI Hui-xiang
Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China
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Abstract  Automatic coagulant dosage control with streaming current (SC) technique is introduced in this paper. Aluminum and ferric coagulants are widely used in surface water treatment. The SC response characteristics of P-AlCl3 aluminum coagulant and P-FeCl3 ferric coagulant were investigated in this work. Bench-scale water treatment results were obtained from jar tests including rapid mixing, flocculation and undisturbed sedimentation. Results showed that aluminum coagulant is more sensitive than ferric coagulant to SC response.

Key words： Streaming current (SC)      SC response      Coagulant      Water treatment      Automatic control     
Received: 05 April 2001     
CLC:  TU991  
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YANG Wan-dong
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SHI Hui-xiang
Cite this article:

YANG Wan-dong, SONG Shuang, SHI Hui-xiang. SC response characteristics of two kinds of coagulant. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2002, 3(3): 268-271.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2002.0268     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2002/V3/I3/268

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