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在试验水样中分别加入几种代表性的芳香类有机物进行氯化试验,研究芳香类有机物在饮用水消毒过程中的氯化反应活性,并使用气相色谱仪(ECD检测器)测定消毒副产物三卤甲烷和卤乙酸的生成量。结果表明:1)各受试物质氯化生成消毒副产物的活性(生成量和生成速度)从大到小依次为间苯二酚、对苯二酚、邻苯二酚、苯酚、苯胺、苯甲酸、硝基苯;2)芳香类有机物氯化反应生成消毒副产物的活性取决于苯环上官能团的性质、数量和位置等;3)苯甲酸的氯化反应可分为快速反应和慢速反应两个阶段。
Several representative aromatic organic compounds were added to the test water samples for chlorination test to study the chlorination activity of aromatic organic compounds in the process of drinking water disinfection and the disinfection by-products were determined by gas chromatography (ECD) Trihalomethanes and haloacetic acid formation. The results showed as follows: 1) The activity (amount and speed of production) of disinfection byproducts produced by chlorination of each tested substance descending order were: resorcinol, hydroquinone, catechol, phenol, aniline, benzene Formic acid and nitrobenzene; 2) the activity of aromatic organic compounds generated by chlorination reaction of disinfection by-products depends on the nature, quantity and location of the functional groups on the benzene ring; 3) the chlorination reaction of benzoic acid can be divided into rapid reaction and slow The reaction of two stages.