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中文摘要：
以溶解有机碳为5 mg·L-1的色氨酸溶液为研究对象,探索氯和氯胺消毒时,不同影响因子对亚硝氮在三氯硝基甲烷(TCNM)形成中的作用,从而识别其关键消毒因子.结果表明:NO-2的加入对TCNM的形成有明显的促进作用.对氯消毒来说,NO-2对TCNM形成的促进作用在酸性条件下(TCNM增量为11.82μg·L-1)比碱性条件下(TCNM增量为2.66μg·L-1)更为明显;而对于氯胺,却在中碱性条件下较为明显(pH=5,6,7,8,9,TCNM的增量分别为0.04、0.11、0.50、0.34、0.27μg·L-1).但不管是氯消毒还是氯胺消毒,NO-2对TCNM形成的促进作用基本随着消毒剂量、反应时间的增加而增加.由极差分析得知,氯、氯胺消毒下影响NO-2对TCNM形成的关键的因子均是pH值.
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