TY - JOUR
T1 - Characterization of precursors to trihalomethanes formation in Bangkok source water
AU - Panyapinyopol, Bunyarit
AU - Marhaba, Taha F.
AU - Kanokkantapong, Vorapot
AU - Pavasant, Prasert
N1 - Funding Information:
The authors would like to sincerely thank the National Research Center for Environmental and Hazardous Waste Management (NRC-EHWM), Chulalongkorn University, the Department of Sanitary Engineering, Faculty of Public Health, Mahidol University, and the New Jersey Applied Water Research Center (NJAWRC) at the New Jersey Institute of Technology for their funding and support of this research work.
PY - 2005/4/11
Y1 - 2005/4/11
N2 - Resin adsorption techniques using three types of resin (DAX-8, AG-MP-50, and WA-10) were employed to characterize the raw water (RW) from the major 3 million m3/day (793 million gal/day) drinking water treatment plant in Bangkok, Thailand. The dissolved organic carbon (DOC) mass distribution sequences of the six organic fractions in raw water, from high to low, were hydrophilic neutral (HPIN), hydrophobic acid (HPOA), hydrophilic acid (HPIA), hydrophobic neutral (HPON), hydrophilic base (HPIB), and hydrophobic base (HPOB). HPIN and HPOA were the two main precursors for trihalomethanes formation (THMFP) in this water source following chlorination. The chlorination of HPON and HPIN fractions only led to the formation of mostly chloroform, while other organic fractions formed both chloroform and bromodichloromethane. The linear dependency between each organic fraction concentration and THMFP indicated that the reactions of each organic fraction with chlorine were first-order.
AB - Resin adsorption techniques using three types of resin (DAX-8, AG-MP-50, and WA-10) were employed to characterize the raw water (RW) from the major 3 million m3/day (793 million gal/day) drinking water treatment plant in Bangkok, Thailand. The dissolved organic carbon (DOC) mass distribution sequences of the six organic fractions in raw water, from high to low, were hydrophilic neutral (HPIN), hydrophobic acid (HPOA), hydrophilic acid (HPIA), hydrophobic neutral (HPON), hydrophilic base (HPIB), and hydrophobic base (HPOB). HPIN and HPOA were the two main precursors for trihalomethanes formation (THMFP) in this water source following chlorination. The chlorination of HPON and HPIN fractions only led to the formation of mostly chloroform, while other organic fractions formed both chloroform and bromodichloromethane. The linear dependency between each organic fraction concentration and THMFP indicated that the reactions of each organic fraction with chlorine were first-order.
KW - Disinfection by-products
KW - Fractionation
KW - Organic matter
KW - Surface water
KW - THMFP
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U2 - 10.1016/j.jhazmat.2005.01.009
DO - 10.1016/j.jhazmat.2005.01.009
M3 - Article
C2 - 15811685
AN - SCOPUS:16344388752
SN - 0304-3894
VL - 120
SP - 229
EP - 236
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 1-3
ER -