NOM characteristics and treatabilities of ozonation processes

P. C. Chiang; E. Chang; C. H. Liang

doi:10.1016/S0045-6535(01)00181-3

NOM characteristics and treatabilities of ozonation processes

P. C. Chiang, E. Chang, C. H. Liang

Department of Biochemistry and Molecular Cell Biology

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

119 Citations (Scopus)

Abstract

The objectives of this study were intended to evaluate the effects of the characteristics of natural organic matter on the treatabilities of ozonation, coagulation, filtration, and granular activated carbon processes. The ultra-violet absorbance (UV₂₅₄) was used as a surrogate parameter to assess each process in reducing the disinfection by-product formation potential (DBPFP). The results indicate that the DBPFP varies with the sources of water samples and treatment processes, but is closely related to the measurement of UV₂₅₄/DOC. Coagulation/sedimentation can eliminate large molecular weight organic fractions. Both pre- and post-ozonation processes can reduce some of DBP precursors than the conventional treatment process, and are more reliable for reducing the overall DBPFP.

Original language	English
Pages (from-to)	929-936
Number of pages	8
Journal	Chemosphere
Volume	46
Issue number	6
DOIs	https://doi.org/10.1016/S0045-6535(01)00181-3
Publication status	Published - 2002

Keywords

Disinfection by-product
Disinfection by-product formation potential
Molecular weight distribution
Natural organic matter

ASJC Scopus subject areas

Environmental Chemistry
General Environmental Science

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10.1016/S0045-6535(01)00181-3

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abstract = "The objectives of this study were intended to evaluate the effects of the characteristics of natural organic matter on the treatabilities of ozonation, coagulation, filtration, and granular activated carbon processes. The ultra-violet absorbance (UV254) was used as a surrogate parameter to assess each process in reducing the disinfection by-product formation potential (DBPFP). The results indicate that the DBPFP varies with the sources of water samples and treatment processes, but is closely related to the measurement of UV254/DOC. Coagulation/sedimentation can eliminate large molecular weight organic fractions. Both pre- and post-ozonation processes can reduce some of DBP precursors than the conventional treatment process, and are more reliable for reducing the overall DBPFP.",

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AU - Chiang, P. C.

AU - Chang, E.

AU - Liang, C. H.

PY - 2002

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AB - The objectives of this study were intended to evaluate the effects of the characteristics of natural organic matter on the treatabilities of ozonation, coagulation, filtration, and granular activated carbon processes. The ultra-violet absorbance (UV254) was used as a surrogate parameter to assess each process in reducing the disinfection by-product formation potential (DBPFP). The results indicate that the DBPFP varies with the sources of water samples and treatment processes, but is closely related to the measurement of UV254/DOC. Coagulation/sedimentation can eliminate large molecular weight organic fractions. Both pre- and post-ozonation processes can reduce some of DBP precursors than the conventional treatment process, and are more reliable for reducing the overall DBPFP.

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KW - Molecular weight distribution

KW - Natural organic matter

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NOM characteristics and treatabilities of ozonation processes

Abstract

Keywords

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