| 二氧化氯消毒时三氯甲烷形成量的研究 |
| 摘要点击 1092 全文点击 1506 投稿时间：1995-01-08 |
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| 中文关键词 二氧化氯 三氯甲烷 消毒 消毒副产物 |
| 英文关键词 chlorine dioxide water disinfection chloroform |
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| 中文摘要 |
| 研究了二氧化氯与氯消毒时三氯甲烷的形成量。结果表明,氯可与水中有机物反应形成三氯甲烷,其形成量随水中有机物含量,氯投加量,pH值的升高而升高,当COD为3mg/L,投氧量为7mg/L时,经48h反应后,三氯甲烷形成量将超过国家标准规定的60μg/L。二氧化氛不与有机物反应形成三氯甲烷。11.33mg/L的二氧化氛与COD为2.67mg/L的水样经48h反应,三氯甲烷形成量低于检出限,二氧化氯与氯复配使用也可抑制三氯甲烷的生成,但二氧比氯对已形成的三氯甲烷无去除作用。 |
| 英文摘要 |
| The results show that chlorine reacts with organic matter to form chloroform,the production of which increases with an increase in COD,pH,and chlorine dosage. The level of chloroform would exceed the national drinking water quality standard(60μg/L),48 hours after dosing 7 mg/ L chlorine to water with a COD of 3 mg/L chlo rine dioxide does not react with organic matter to form chloroform. After adding 11.33 mg/L of chlorine dioxide to a water having a COD of 2.67 mg/L for 48 hours,the level of chloroform was below detection limit. Moreover,a combined use of chlorine dioxide and chlorine can inhibit the formation of chloroform. However,chlorine dioxide was not able to remove chloroform already present in water. |
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