TY - JOUR
T1 - Interaction between organic species in the formation of haloacetic acids following disinfection
AU - Kanokkantapong, Vorapot
AU - Marhaba, Taha
AU - Wattanachira, Suraphong
AU - Panyapinyophol, Bunyarit
AU - Pavasant, Prasert
PY - 2006/7/1
Y1 - 2006/7/1
N2 - The formation of haloacetic acids (HAAs) from the chlorination of individual and binary mixtures of organic fractions obtained from the intake of Bangkhen Water Treatment Plant in Bangkok, Thailand was investigated. Experimental results revealed that, as an individual fraction, hydrophobic base (HPOB) was the most active in forming HAAs (approx. 200 μg/mg) whereas hydrophilic acid (HPIA) was the least (approx. 40 μg/mg). In binary mixtures, acid fractions exhibited stronger inhibitory effect in forming HAAs than base fractions. With the set of experimental data obtained from this work, no relationships between specific HAA formation potential and various organic fractions concentrations in binary mixtures could be formulated. Among the various individual HAA species obtained from the chlorination of each individual organic fraction, dichloroacetic acid (DCAA) was found to be predominant. On the other hand, the chlorination of binary organic fraction mixtures often led to the formation of monochloroacetic acid (MCAA) as the predominant HAA species.
AB - The formation of haloacetic acids (HAAs) from the chlorination of individual and binary mixtures of organic fractions obtained from the intake of Bangkhen Water Treatment Plant in Bangkok, Thailand was investigated. Experimental results revealed that, as an individual fraction, hydrophobic base (HPOB) was the most active in forming HAAs (approx. 200 μg/mg) whereas hydrophilic acid (HPIA) was the least (approx. 40 μg/mg). In binary mixtures, acid fractions exhibited stronger inhibitory effect in forming HAAs than base fractions. With the set of experimental data obtained from this work, no relationships between specific HAA formation potential and various organic fractions concentrations in binary mixtures could be formulated. Among the various individual HAA species obtained from the chlorination of each individual organic fraction, dichloroacetic acid (DCAA) was found to be predominant. On the other hand, the chlorination of binary organic fraction mixtures often led to the formation of monochloroacetic acid (MCAA) as the predominant HAA species.
KW - Disinfection by-products
KW - Fractionation
KW - Haloacetic acids
KW - Organic fractions
KW - Potential carcinogens
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U2 - 10.1080/10934520600623117
DO - 10.1080/10934520600623117
M3 - Article
C2 - 16760098
AN - SCOPUS:33745125091
SN - 1093-4529
VL - 41
SP - 1233
EP - 1248
JO - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
JF - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
IS - 6
ER -