同济大学学报（自然科学版）2012，Vol.40Issue(12)：1842-1846,5.DOI:10.3969/j.issn.0253-374x.2012.12.017
溢流污水中溶解性有机物的混凝去除特性
Characteristic of Dissolved Organic Matter Removal in Overflow Wastewater by Coagulation Flocculation Process
摘要
Abstract
The fractions variation and the removal efficiency of dissolved organic matter (DOM) by polyaluminum ferric chloride sulfate (PAFCS) in coagulation flocculation process were investigated by taking a storm sewer system in Shanghai for example. The results show that in overflow wastewater, hydrophobic matter (HoM) and hydrophilic matter (HiM) account for 68% and 32% respectively; and molecular weight (MW) more than 300 kDa and 10~50 kDa fractions account for 29. 76% and 37.87% respectively. PAFCS is effective on DOM removal and total organic carbon (TOC) removal efficiency is 17% approximately, and the removal efficiency of HoM fraction is higher than HiM fraction. The removal efficiency of MW more than 300 kDa and 100 ~ 300 kDa is between 20% and 25% approximately, but the MW less than 10 kDa and 50 ~ 100 kDa fractions are rarely removed in coagulation flocculation process.关键词
溢流污水/溶解性有机物/分级/混凝絮凝过程Key words
overflow wastewater/dissolved organic matter/fractions/coagulation flocculation process分类
资源环境引用本文复制引用
徐祖信,王卫刚,李怀正,金伟..溢流污水中溶解性有机物的混凝去除特性[J].同济大学学报（自然科学版）,2012,40(12):1842-1846,5.基金项目
上海市科委科技资助项目(10DZ1960200) （10DZ1960200）
国家水体污染控制与治理科技重大专项(2008ZX07317-001) （2008ZX07317-001）
