Characteristics of organic precursors and their relationship with disinfection by-products

E. E. Chang; Pen Chi Chiang; Ya Wen Ko; Wen Hsieh Lan

doi:10.1016/S0045-6535(00)00499-9

Characteristics of organic precursors and their relationship with disinfection by-products

E. E. Chang, Pen Chi Chiang, Ya Wen Ko, Wen Hsieh Lan

Department of Biochemistry and Molecular Cell Biology

Research output: Contribution to journal › Article › peer-review

134 Citations (Scopus)

Abstract

The molecular weight distribution and chemical composition of precursors and their relationship with disinfection by-products (DBPs) were investigated. Most of the organic matter responsible for the major DBP precursors in the PanHsin water are small compounds with a molecular weight less than 1 kDa. The hydrophobic acids display the greatest ability to produce DBP. Therefore, effective removal of small molecules or hydrophobic acidic organics prior to disinfection process will significantly reduce the DBP concentration in the finished water. Although the coagulation process is effective in removing large organic precursors and the removal efficiencies of CHCl₃ formation potential and organic carbon increase proportionally to the molecular weight of the precursors, the conventional treatment methods have limited efficiency in eliminating small precursors, which have high DBP formation potential.

Original language	English
Pages (from-to)	1231-1236
Number of pages	6
Journal	Chemosphere
Volume	44
Issue number	5
DOIs	https://doi.org/10.1016/S0045-6535(00)00499-9
Publication status	Published - 2001

Keywords

Disinfection by-product
Hydrophilic
Hydrophobic
Molecular weight
Precursor

ASJC Scopus subject areas

Environmental Chemistry
General Environmental Science

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10.1016/S0045-6535(00)00499-9

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abstract = "The molecular weight distribution and chemical composition of precursors and their relationship with disinfection by-products (DBPs) were investigated. Most of the organic matter responsible for the major DBP precursors in the PanHsin water are small compounds with a molecular weight less than 1 kDa. The hydrophobic acids display the greatest ability to produce DBP. Therefore, effective removal of small molecules or hydrophobic acidic organics prior to disinfection process will significantly reduce the DBP concentration in the finished water. Although the coagulation process is effective in removing large organic precursors and the removal efficiencies of CHCl3 formation potential and organic carbon increase proportionally to the molecular weight of the precursors, the conventional treatment methods have limited efficiency in eliminating small precursors, which have high DBP formation potential.",

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AU - Chang, E. E.

AU - Chiang, Pen Chi

AU - Ko, Ya Wen

AU - Lan, Wen Hsieh

PY - 2001

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AB - The molecular weight distribution and chemical composition of precursors and their relationship with disinfection by-products (DBPs) were investigated. Most of the organic matter responsible for the major DBP precursors in the PanHsin water are small compounds with a molecular weight less than 1 kDa. The hydrophobic acids display the greatest ability to produce DBP. Therefore, effective removal of small molecules or hydrophobic acidic organics prior to disinfection process will significantly reduce the DBP concentration in the finished water. Although the coagulation process is effective in removing large organic precursors and the removal efficiencies of CHCl3 formation potential and organic carbon increase proportionally to the molecular weight of the precursors, the conventional treatment methods have limited efficiency in eliminating small precursors, which have high DBP formation potential.

KW - Disinfection by-product

KW - Hydrophilic

KW - Hydrophobic

KW - Molecular weight

KW - Precursor

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Characteristics of organic precursors and their relationship with disinfection by-products

Abstract

Keywords

ASJC Scopus subject areas

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