典型水处理工艺处理黄浦江原水有机物变化规律初探  

Exploration of Transformation of Organic Matters in Huangpu River Raw Water Treated by Typical Drinking Water Technological Processes

作　　者：高炜 陈学源 安东[2] 陈国光[3] 

机构地区：[1]上海市自来水市北有限公司,上海200086 [2]复旦大学环境科学与工程系,上海200433 [3]上海市供水调度监测中心,上海200002

出　　处：《净水技术》2011年第4期26-30,共5页Water Purification Technology

摘　　要：该文从分子量转化的角度对水体中有机物在水处理工艺过程中的转化进行了研究。针对特定的水质特征(小分子有机物居多),比较了3种不同的氧化剂(臭氧、氯和高锰酸钾)对有机物分子量(molecular weight,MW)的转化情况。试验证实臭氧氧化可明显减少MW>30 kDa的有机物含量,进一步通过絮凝沉淀和过滤工艺可使MW>30 kDa的有机物被有效去除;活性碳过滤后的水样中MW>10 kDa的有机物更容易生成三卤甲烷(THMs)类的消毒副产物,而MW<1 kDa的有机物则更加容易生成卤乙酸(HAAs)。该研究从分子量分布的角度证实了常规水处理工艺与深度处理工艺的互补性,并探讨了分子量、溶解性有机碳(DOC)与消毒副产物前体物(DBPFP)之间的内在关系。The change of the organic matter molecular weight （MW） in the Huangpu River raw water during water treatment was ex- plored in this paper. Three kinds of oxidations such as oxidants-ozone, chlorine and potassium permanganate were used to compare the change of the MW composition first. The results show that organic matters with MW 〉30 kDa can be decreased by ozonation, and those organic matters can be removed effectively by post-treatment of coagulation, sedimentation and filtration; after treated by acti- vated carbon filtration, the organic matters with MW ≥ 10 kDa are easy to produce trihalomethanes （THMs）, whereas other organic matters with MW ≥ 1 kDa are easy to produce haloacetic acids （HAAs）. From the MW distribution of view, there exists a complemen- tarity between conventional water treatment and advanced water treatment processes, and internal relation between MW, dissolved or- ganic carbon （DOC） and disinfection by-products formation potential （DBPFP） was explored.

关 键 词：分子量 臭氧 活性炭 有机物 

分 类 号：TU991.2[建筑科学—市政工程]