Turnover mechanisms of organic conformation on turbidity in drinking water

2007年第1卷第3期

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《环境科学与工程前沿（英文）》 >> 2007年第1卷第3期 doi: 10.1007/s11783-007-0046-9

Turnover mechanisms of organic conformation on turbidity in drinking water

Department of Environmental Science & Engineering, Research Center for Environmental Engineering & Management, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China

发布日期： 2007-09-05

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摘要

The turbidity variation in artificial water and samples from a water plant was investigated in the presence of organics with different relative molecular mass. The results show that recessive turbidity existed when water chemical conditions were changing. The formation of turbidity depended on organic relative molecular mass and their conformations on particles. At higher pH and lower ionic strength, the organic chains with a more extended conformation resulted in rising turbidity of the suspension. At lower pH, the reconformation of organics took place due to charge neutralization by the proton, resulting in a decline in turbidity. The addition of NaCl and MgCl at pH 7.00 also resulted in a decrease of turbidity in the suspension. It is believed that the occurrence of recessive turbidity has a significant influence on the stability of water supply quality.

关键词

stability ; different ; turbidity ; occurrence ; supply