Occurrence of trihalomethanes and haloacetonitriles in water distribution networks of Khon Kaen Municipality, Thailand

被引：26

作者：

Ratpukdi, Thunyalux ^{[1
,2
,3
]}

Sinorak, Sudarat ^{[1
,2
]}

Kiattisaksiri, Pradabduang ^{[4
]}

Punyapalakul, Patiparn ^{[3
,5
]}

Siripattanakul-Ratpukdi, Sumana ^{[1
,2
,3
]}

机构：

[1] Khon Kaen Univ, Dept Environm Engn, Fac Engn, Khon Kaen 40002, Thailand

[2] Khon Kaen Univ, Res Ctr Environm & Hazardous Subst Management, Khon Kaen 40002, Thailand

[3] Ctr Excellence Hazardous Subst Management, Bangkok 10330, Thailand

[4] Thammasat Univ, Fac Publ Hlth, Lampang Ctr, Lampang 52190, Thailand

[5] Chulalongkorn Univ, Dept Environm Engn, Fac Engn, Bangkok 10330, Thailand

来源：

WATER SUPPLY | 2019年 / 19卷 / 06期

关键词：

chlorine; chlorine dioxide; disinfection byproducts; distribution networks; haloacetonitriles; trihalomethanes; DISINFECTION BY-PRODUCTS; DRINKING-WATER; HALOACETIC ACIDS; UNCERTAINTY; PREDICTION; SYSTEMS;

D O I：

10.2166/ws.2019.049

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The occurrence of trihalomethanes (THMs) and haloacetonitriles (HANs) in three water distribution networks (Thapra, Kota, and Khon Kaen University (KKU)) in Khon Kaen Municipality, Thailand, from November 2015 to December 2016 was investigated. The highest THMs and HANs were 584 mu g/L and 30 mu g/L respectively. Chloroform was the dominant species of the THM pool and trichloroacetonitriles were the dominant species for HANs. Water treatment plants using free chlorine (Thapra and Kota) formed more THMs than the plant using ClO2 (KKU). In the summer season, more brominate THMs were observed. In many locations, total THM concentrations were found to be higher than the drinking water standard of the Provincial Water Authority of Thailand. The concentration of THMs tended to increase with greater distance from the water plants (as water aged), while HAN concentrations decreased with distance, potentially because they were undergoing hydrolysis in the pipeline.

引用

页码：1748 / 1757

页数：10

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