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Huan Jing Ke Xue. 2008 Dec;29(12):3368-71.

[Use of two-points-short-term free chlorine plus chloramines disinfection process in conventional treatments of water supply].

[Article in Chinese]

Author information

1
Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China. liujing99@mails.tsinghua.edu.cn

Abstract

Two-points-short-term free chlorine plus chloramines disinfection process was used in conventional treatments of water supply. The process is adding chlorine at the start of filtration and clear well respectively, and then after a few minutes chlorine disinfection in clear well adding ammonia to change the chlorine to chloramines. The point of chlorine dosing move up to the filtration process can decrease disinfection by-product yield and control bio-film growth in filtration process. Compared with adding equal quantity chlorine once, this process reduced 51.6% of THMs and 46.7% of HAAs. HPC result also showed advantage in microorganism controlling.

PMID:
19256369
[Indexed for MEDLINE]
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