• 关键词：强化絮凝  DBP先质  自然有机物  腐殖酸

• 基金项目：冶金部基金

• 黄廷林
• 西安建筑科技大学环境工程系,西安 710055

• 摘要：采用强化絮凝的方法,实验研究和探明了混合反应强度、浊度、pH值等因素对去除水中DBP先质的影响规律,进一步揭示了强化絮凝条件下除浊与除DBP先质的相互关系,求得了不同水质条件下的最佳pH值和最佳投药量。在同时考虑除浊时,单一腐殖酸水样的TOC去除率可高达90%,西安兴庆湖水样的TOC去除率也可达70%.研究结果可为水厂应用强化絮凝工艺去除水中DBP先质提供科学依据和参考。

• Abstract：Effects of flash mixing intensity and flocculation time,turbidity,pH value etc.on DBP's precursor removal were experimentally studied.Under the enhanced coagulation conditions,the correlation between NOM removal and turbidity removal was also investigated,and the optimal pH value and aluminum coagulant dosage were obtained.TOC removal percent reached 90% and 70% for HA water sample and Xi'an Xingqing Lake water sample respectively.

• Key words：enhanced coagulation  DBP's precursor  natural organic matter (NOM)  humic acid

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