摘要:
在对天然有机物分类的基础上进行了水体中有机物的特性研究，并采用氯胺对不同特性有机物的氯化消毒副产物进行了控制研究。结果表明，疏水酸占有机物总量的24%，疏水中性物质占41%，疏水性有机物占67%；对于三卤甲烷类消毒副产物生成势，疏水酸所产生的最多，疏水碱次之，亲水酸最少；对于卤乙酸类消毒副产物生成势，疏水碱产生的三卤乙酸最多，其次为疏水酸，亲水酸最少。氯胺对不同类有机物氯化消毒副产物控制程度不同，氯胺对疏水中性物质控制三卤甲烷类消毒副产物最好，其次是疏水碱和亲水碱；对疏水酸的三卤甲烷生成量控制较弱，对亲水酸的控制效果最差；氯胺对亲水碱氯化产生卤乙酸的控制效果最好，其次是疏水碱，控制效果最差的为疏水中性物质。
Abstract:
The paper researched on characters of NOM (nature organic matter)based on the fractionation of NOM, and studied the control of DBPs(disinfection by-products) by chloramine compared with chlorine. NOM has HOA(hydrophobic acids) by 24%, HON (hydrophobic neutral fraction)by 41%, and all hydrophobic organic matter is 67%. For the THMFP(trihalomethanes formation potential) production, HOA was the most, and HOB(hydrophobic bases) was next, HIA(hydrophilic acids) was the least. For the HAAFP(haloacetic acids formation potential) production, HOA was the most, HOB was next, HIA was the least. Chloramine can control DBPs to the different extent for different organic matter compared with chlorine, for HON, chloramine could control trihalomethanes by 85.7%, next were HOB and HIB(hydrophilic bases), the rates were 84.9% and 82.7%, but for HOA chloramine decreased 55.4% compared with chlorine, for HIA, chloramine only decreased 9.1%. Cloramine could control haloacetic acid according to character of NOM, the control effect of HIB was the best, could decrease 88%, next was HOB and control effect was 86.6%, but the least was HON, only decreased 17.8%.
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