天然有机物氯消毒副产物的生成及影响因素研究  

Formation and Its Influence Factors of Chlorine Disinfection Byproduct

作　　者：林韵[1] 叶沛茵 涂常青[1] 黄晓霞[1] 林圣闵 赖文亮 

机构地区：[1]嘉应学院化学与环境学院,广东梅州514015 [2]大仁科技大学环境管理研究所,台湾屏东90741

出　　处：《中国给水排水》2016年第5期49-54,共6页China Water & Wastewater

基　　金：大学生创新创业训练计划项目

摘　　要：根据台湾自来水厂现场操作现状,以水体中典型天然有机物腐殖酸为研究对象,研究有机物性质、加氯量、溴离子、反应时间、温度等因素对氯消毒副产物生成的影响。结果表明,腐殖酸经臭氧氧化(投量为6 mg/mg C)后,富里酸和类腐殖酸的荧光强度均呈现下降趋势,A_(200-400)值下降、SR值增加,表征芳香族不饱和结构的减少及有机物分子质量的下降。对于含二溴或含二氯以上的三卤甲烷(THMs)的生成量,溴离子与反应时间的交互作用影响非常明显。CHBr_3和THMs的生成量与FIX和BIX指标均呈极显著相关性(p<0.01),与A_(200-400)值呈显著相关性(p<0.05),这意味着以光谱特征位置的讯号强度可进行自来水厂出水THMs或CHBr_3浓度的监控。Based on the site situation of a waterworks in Taiwan, with the typical natural organic matter humic acid in water as the research object, the influence of organic matter nature, chlorine dosage, bromide ion, reaction time and temperature on the formation of chlorine disinfection by-products was investigated. The results showed that after ozonation with 6 mg/mgC, the fluorescent intensities of humiclike substances and fulvic acid were decreased. The decrease of A200-400 and the increase of SR ratio revealed that ozonation could reduce the content of organic matter with unsaturated structure and raise the content of organic matter with low molecular weight. For the formation of THMs containing dibromide and dichloride, bromide ion and reaction time were dominant factors with positive effect. High significance level was found for the relationship of CHBr3 and THMs to FIX or BIX （p 〈 0.01 ）. The significance level was found for relationship of CHBr3 and THM to A200-400 （p 〈 0.05 ）. This information demonstrated that spectrometric index has an ability to monitor THMs or CHBr3 in the finished water.

关 键 词：腐殖酸 氯消毒 臭氧氧化 三卤甲烷 溴离子 荧光指标 生物性指标 

分 类 号：TU991.2[建筑科学—市政工程]