Effects of organic matter, CaCl2 and MgCl2 on flocculation and settling of fine sediment

被引：0

作者：

Chen, H.-S. ^{[1
]}

Shao, M.-A. ^{[1
]}

机构：

[1] State Key Lab. of SEDF on the LP, Chinese Academy of Sciences, Ministry of Water Resources, Yangling 712100, China

来源：

Zhongguo Huanjing Kexue/China Environmental Science | 2001年 / 21卷 / 05期

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摘要：

When sediment concentration was 10 g/L and concentration of CaCl2 and MgCl2 ranged from 0 to 1.0mmol/L, the effect of organic matter, CaCl2 and MgCl2 on flocculation and settling of fine sediment in static water was studied with pipette technique. The results showed that fine sediment settled and flocculated faster after removal of organic matter, and optimal electrolyte concentration for the flocculation became lower. The flocculation ability of CaCl2 and MgCl2 had no obvious difference, and it was nearly not effected by the organic matter content. Under the same salt content, the flocculation and settling velocity of fine sediment increased with the increase of electrolyte concentration.

引用

页码：395 / 398