Nitrate and chloride formation in chloramination
Nitrate and chloride formation in chloramination
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氯胺化过程中硝酸盐和氯化物的形成
DOI：
10.2166/wst.1994.0453
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发表时间：
1994
影响因子：
2.7
通讯作者：
V. Diyamandoglu
中科院分区：
文献类型：
--
作者：
V. Diyamandoglu
在25°C下，在6.9和9.6之间的pH范围内，研究了作为氯胺化（组合氯化）的最终产物的硝酸盐和氯化物的形成。实验结果包括结合氯残留物沿着硝酸盐和氯化物的浓度-时间曲线。亚硝酸盐（如果存在）始终低于所用分析方法的检测限（25 ppb）。氯物质的质量平衡表明，在化合氯残留物缓慢衰变过程中形成的氯化物并不能解释所有的氯损失。这证实了其他反应终产物的形成，这些产物尚待鉴定。根据本研究中得到的动力学数据，提出了一个氯胺化反应的动力学模型。
The formation of nitrate and chloride as end-products of chloramination (combined chlorination) was investigated at pH ranging between 6.9 and 9.6 at 25°C. The experimental results comprised concentration-time profiles of combined chlorine residuals along with nitrate and chloride. Nitrite, if present, was always below the detectibility limit of the analytical method used (25 ppb). Mass balances on chlorine species depicted that chloride formed during the slow decay of combined chlorine residuals does not account for all the chlorine lost. This substantiates the formation of other reaction end-products which are yet to be identified. A kinetic model for chloramination is proposed based on the kinetic data obtained in this study.