| 自来水中氯消毒能力在不同温度下的变化规律研究 |
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| 引用本文： | 万巧玲,王良超. 自来水中氯消毒能力在不同温度下的变化规律研究[J]. 环境科学与管理, 2016, 0(8): 60-62. DOI: 10.3969/j.issn.1673-1212.2016.08.015 |
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| 作者姓名： | 万巧玲 王良超 |
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| 作者单位： | 国家城市供水水质监测网重庆市监测站,重庆,400013 |
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| 摘 要： | 重庆市地处中亚热带季风性湿润气候地区,四周被高山环绕形成独特山地丘陵地形,具有季节气温变化特殊的局地性和代表性.分别监测2014年全年的月平均气温与月平均水温,作出了全年月平均气温与月平均水温变化趋势图,并根据趋势图选定在10℃,15℃,24℃,30℃四个典型不同季节温度下,通过监测相同初始余氯值的出厂水中余氯衰减规律,发现余氯衰减速率随温度变化大小各异,衰减系数排列为:K30℃>K24℃>K15℃>K10℃.根据出厂水在管网中水力停留时间的长短,可随季节温度变化适当调整出厂水加氯量,优化生产效果,节约加氯成本,降低饮水风险.
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| 关 键 词： | 余氯 温度 衰减系数 |
Variation of Sterilizing Effects of Chlorine in Tap Water of Chongqing Under Different Temperatures |
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| Wan Qiaoling,Wang Liangchao. Variation of Sterilizing Effects of Chlorine in Tap Water of Chongqing Under Different Temperatures[J]. Environmental Science and Management, 2016, 0(8): 60-62. DOI: 10.3969/j.issn.1673-1212.2016.08.015 |
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| Authors: | Wan Qiaoling Wang Liangchao |
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| Abstract: | Chongqing city was located in the humid area belonged to the middle subtropical monsoon climate .The city was surrounded by many mountains and hills, so it had the unique geographical and climatic characteristics.In order to systematically study the variation of residual chlorine in the water supply network under the different temperatures , the finished water from a wa-ter plant had being respectively monitored under 10℃,15℃,24℃ and 30℃ in different seasons.It was found that the residual chlorine decay coefficients were so different because of the various temperatures:K30℃ >K24℃ >K15℃ >K10℃.It was practicable to change and adjust the chlorine dosage in water plant based on the actual hydraulic retention time and the different temperatures , which could save the costs of the chlorine dosage and reduce the risks of drinking water because of the faster decay of residual chlorine by the higher temperature. |
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| Keywords: | residual chlorine residual chlorine decay coefficients temperatures |
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