[Characteristics and chlorination activity of natural organic matter in water].
XAD resin adsorption technique is used to separate natural organic matter in the water into four fractions, namely: humic acid fraction, fulvic acid fraction, hydrophilic acid fraction and hydrophilic non acid fraction. Trihalomethane formation velocity and chlorination activity of each fraction are studied. Results show that fulvic acid is the main components which contained 50.7% of total organic carbon and produce more trihalomethane than other fractions in the raw water. Humic acid, fulvic acid and hydrophilic acid exhibited more chlorination activity and faster reactive velocity with chlorine than hydrophilic non acid fraction.
Zhang
Yong-ji
YJ
Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China.
Zhou
Ling-ling
LL
Liu
Zhi-sheng
ZS
Jiao
Zhong-zhi
ZZ
Li
Gui-bai
GB
D001578:Benzopyrans / Q000032:analysis*; D017606:Chlorine Compounds / Q000032:analysis*; D004202:Disinfectants / Q000032:analysis / Q000737:chemistry*; D004784:Environmental Monitoring; D009930:Organic Chemicals / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis; D018508:Water Purification / Q000379:methods*; D014881:Water Supply / Q000032:analysis*
D001578:Benzopyrans; D017606:Chlorine Compounds; D004202:Disinfectants; D009930:Organic Chemicals; D014874:Water Pollutants, Chemical; C005023:fulvic acid