| 水加氯处理时NHCl2与溴化物的反应特性研究 |
| 摘要点击 652 全文点击 1988 投稿时间：1997-04-10 |
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| 中文关键词 NHCl2 水加氯处理 溴化物 诱导期 紫外光谱 气相色谱 疏水微孔渗透法 |
| 英文关键词 dichloramine water chlorination bromide introducing period UV spectrum gas chromatograph polytetrafluoroethylene micro porous permeation |
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| 中文摘要 |
| 含氨水体进行氯化处理时会产生NH2Cl和NHCl2,当水中含有溴化物(Br-)时,氯胺类会与水中的Br-反应,NH2Cl与Br-的反应速度随pH增加和Br-浓度降低而减慢;NHCl2与溴化物的反应比较复杂,2者的反应存在着一个诱导期,诱导期的长短与Br-浓度对数成反比,NHCl2与Br-的反应速度对NHCl2为一级反应;用紫外光谱、气相色谱和疏水微孔渗透法研究了该反应产物,确认反应产物为Br3-、N2,并推定了反应方程式。 |
| 英文摘要 |
| Monochloramine and dichloramine can be formed at water chlorination which containing ammonia.The chloramine react with bromide contained in water.The reaction rate increases with pH elevating and decreases with descent of bromide concentration.There is an introducing period in the reaction,and this period are inverse proportion with logarithm of bromide concentration.The reaction rate is first order reaction for dichloramine.Reaction products are studied by UV spectrum,gas chromatograph and polytetrafluoroethylene micro porous permeation,and Br3- and N2 have been affirmed.The reaction formula can be infered. |
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