• 关键词：消毒副产物  溶解性有机物  亲疏水性  生成势  线性关系

• 基金项目：国家水体污染控制与治理科技重大专项（No.2014ZX07405002）

• 徐鹏
• 天津市市政工程设计研究院, 天津 300051

• 李忠群
• 中国能源建设集团广东省电力设计研究院有限公司, 广州 510663

• 程战利
• 天津市市政工程设计研究院, 天津 300051

• 吕世峰
• 天津市市政工程设计研究院, 天津 300051

• 沈吉敏
• 城市水资源与水环境国家重点实验室, 哈尔滨 150090

• 陈忠林
• 城市水资源与水环境国家重点实验室, 哈尔滨 150090

• 摘要：使用XAD-4和XAD-8树脂对宜兴3个水源原水中DOM进行亲疏水性分类，采用优化方法测定分类水样的DBPFP，并进行DBPFP与DOM量化指标之间的相关性分析，以确定实际生产过程DBPs生成量的主要影响因素.由三维荧光光谱图得到3个水源原水DOM组成差异较大，水质区别明显.由亲疏水性分类分析发现原水中疏水性和亲水性DOM含量较高，疏水性DOM水样的DBPFP大于原水，得到水样的DBPFP主要取决于DOM与消毒剂反应产生DBPs的效率，而不是DOM的量.引入UV₂₅₄/DOC这个指标，发现不同分类水样UV₂₅₄/DOC的差异情况与其DBPFP相吻合，对两者进行回归分析，发现水样THMFP和DHAAFP与UV₂₅₄/DOC之间存在明显的线性关系，线性可决系数R²分别为0.89和0.85.因此研究减小原水UV₂₅₄/DOC的技术工艺对于控制给水中DBPs浓度具有重要意义.

• Abstract：The dissolved organic matter (DOM) in raw water of three sources in Yixing was classified according to its hydrophilic-hydrophobic property by using XAD-4 and XAD-8 resin. Then disinfection byproduct forming potential (DBPFP) of the water samples was determined using optimized method. Finally, the correlation between DBPFP and quantitative index of DOM was analyzed to determine the main factor influencing DBPs production under practical condition. Significant difference of DOM composition in raw water of three sources was found in three-dimensional fluorescence spectra, indicating obviously different water quality. Also it was found that raw water was high in hydrophobic and hydrophilic DOM. For the DBPFP, hydrophobic DOM is higher than that of raw water, the DBPFP of water sample mainly depends on the reaction rate of DOM and disinfectant to generate DBPs instead of the amount of DOM. The concept of UV₂₅₄/DOC was put forward, and it was found that the variance trend of UV₂₅₄/DOC of different water samples coincides with DBPFP. Then regression analysis was conducted between DBPFP and UV₂₅₄/DOC. The result showed clear linear relationship between THMFP/DHAAFP and UV₂₅₄/DOC with linear correlation coefficients of 0.89 and 0.85 respectively. So it is very significant to research the technology on decreasing UV₂₅₄/DOC of raw water to control the concentration of DBPs in supplied water.

• Key words：disinfection byproducts  dissolved organic matter  hydrophilic-hydrophobic property  formation potential  linear relationship

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