摘要
以珠江广州段水源水为研究对象，采用超滤分离方法将其中的有机物分成分子质量不同的几种形态，考察了各分子质量组分在DOC、UV、THMFP等方面的差异。结果表明：①分子质量在3～10ku间的有机物是珠江广州段源水中最主要的THMs前驱物；②分子质量最小（〈1ku）的组分，尽管SUVA值最低，THMs生成能力（THMFP／DOC）却最强；③经超滤分离有机物量的损失很少，但紫外吸收明显减弱，THMs生成量也随之减少。
A water sample was collected from the Guangzhou section of the Pearl River, whose dissolved organic matter was fractionated to different molecular weight by uhrafihration. It was compared that DOC, UV and trihalomethane formation potential （THMFP） of different DOM components were characterized by molecular size. The results show： ① Organic compounds with molecular weight （MW） between 3 - 10 ku are the major THMs precursors in Guangzhou section of Pearl River;② The smallest MW fraction （ 〈 1 ku） has the greatest THMs formation potential （THMFP/DOC） despite of its lowest SUVA value; ③ Uhrafihration does not preserve either the SUVA or the THMs formation activity of the source water in spite of little DOM loss after uhrafihration.
出处
《中国给水排水》
CAS
CSCD
北大核心
2006年第3期43-47,共5页
China Water & Wastewater
基金
教育部新世纪优秀人才支持计划项目(NCET-04-0790)
关键词
珠江广州段水源
超滤
分子质量分布
三卤甲烷前驱物
water source of Guangzhou section of Pearl River
ultrafiltration
molecular weight distribution
trihalomethanes precursors
