Biocidal Polystyrenehydantoin Beads. 2. Control of Chlorine Loading

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• 作者：Yongjun Chen ; S. D. Worley ; Jangho Kim ; C.-I. Wei ; Tay-Yuan Chen ; J. Suess ; H. Kawai ; and J. F. Williams
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2003
• 出版时间：November 12, 2003
• 年：2003
• 卷：42
• 期：23
• 页码：5715 - 5720
• 全文大小：48K
• 年卷期：v.42,no.23(November 12, 2003)
• ISSN：1520-5045

文摘

It has been demonstrated that the biocidal polymers poly-1,3-dichloro-5-methyl-5-(4'-vinylphenyl)hydantoin and the alkali metal salt and protonated forms of its monochlorinated derivative canbe prepared as insoluble porous beads by careful control of the pH in the chlorination step.While the dichloro derivative will be primarily useful in flowing water disinfection applications,particularly for potable water and recreational water, the monochloro compounds will find usein applications in which disinfection contact time is of lesser importance, such as for recirculatingwater treatment and odor control. Biocidal efficacy and chlorine stability data have beenpresented, and the potential use patterns of the several derivatives have been discussed.