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Effect of NOM characteristics on brominated organics formation by ozonation.
Environ Int. 2004 Feb; 29(8):1049-55.EI

Abstract

In this study, organic fractions, namely, humic acid, fulvic acid, hydrophobic base and neutral, and hydrophilic acid, base, and -neutral, were extracted from source water. First, the characteristics of the organic fractions, such as carboxylic acidity, phenolic acidity, ultraviolet absorbance, and aromatic content, were analyzed. Further, a systematic study was carried out to the by-products obtained when organic fractions, to which various amounts of bromide had been added, were oxidized with ozone. Samples after ozonation were analyzed for several brominated organics. The results indicate that the characteristics of the aquatic organic matter, including carboxylic/phenolic acidity, aromatic/aliphatic content, and ultraviolet absorbance, appear to affect the formation of halogenated organics. In general, hydrophobic organics having higher phenolic acidity, aromatic content, and ultraviolet absorbance have higher ozone consumption and produce higher concentrations of brominated organics than hydrophilic organics. It was also found that humic acid demonstrated the highest bromoform (CHBr(3)), dibromoacetic acid (DBAA), and 2,4-dibromophenol (2,4-DBP) formation, whereas hydrophilic neutral produced less CHBr(3) and 2,4-DBP than the rest of the organic fractions but produced the highest amount of dibromoacetone (DBAC) and dibromoacetonitrile (DBAN).

Authors+Show Affiliations

Huang WJ
Department of Environmental Engineering, Hung Kuang Institute of Technology, 34 Chung Chie Road, Sha-Lu, Taichung, Taiwan, ROC. huangwj@sunrise.hkc.edu.tw
Chen LY
No affiliation info available
Peng HS
No affiliation info available

MeSH

BenzopyransBromine CompoundsDisinfectionHumic SubstancesOxidants, PhotochemicalOzonePhotochemistryUltraviolet RaysWater Purification

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

14680887

Citation

Huang, Winn-Jung, et al. "Effect of NOM Characteristics On Brominated Organics Formation By Ozonation." Environment International, vol. 29, no. 8, 2004, pp. 1049-55.
Huang WJ, Chen LY, Peng HS. Effect of NOM characteristics on brominated organics formation by ozonation. Environ Int. 2004;29(8):1049-55.
Huang, W. J., Chen, L. Y., & Peng, H. S. (2004). Effect of NOM characteristics on brominated organics formation by ozonation. Environment International, 29(8), 1049-55.
Huang WJ, Chen LY, Peng HS. Effect of NOM Characteristics On Brominated Organics Formation By Ozonation. Environ Int. 2004;29(8):1049-55. PubMed PMID: 14680887.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of NOM characteristics on brominated organics formation by ozonation. AU - Huang,Winn-Jung, AU - Chen,Lu-Yun, AU - Peng,Hsiao-Shan, PY - 2003/01/04/received PY - 2003/04/02/accepted PY - 2003/12/19/pubmed PY - 2004/4/23/medline PY - 2003/12/19/entrez SP - 1049 EP - 55 JF - Environment international JO - Environ Int VL - 29 IS - 8 N2 - In this study, organic fractions, namely, humic acid, fulvic acid, hydrophobic base and neutral, and hydrophilic acid, base, and -neutral, were extracted from source water. First, the characteristics of the organic fractions, such as carboxylic acidity, phenolic acidity, ultraviolet absorbance, and aromatic content, were analyzed. Further, a systematic study was carried out to the by-products obtained when organic fractions, to which various amounts of bromide had been added, were oxidized with ozone. Samples after ozonation were analyzed for several brominated organics. The results indicate that the characteristics of the aquatic organic matter, including carboxylic/phenolic acidity, aromatic/aliphatic content, and ultraviolet absorbance, appear to affect the formation of halogenated organics. In general, hydrophobic organics having higher phenolic acidity, aromatic content, and ultraviolet absorbance have higher ozone consumption and produce higher concentrations of brominated organics than hydrophilic organics. It was also found that humic acid demonstrated the highest bromoform (CHBr(3)), dibromoacetic acid (DBAA), and 2,4-dibromophenol (2,4-DBP) formation, whereas hydrophilic neutral produced less CHBr(3) and 2,4-DBP than the rest of the organic fractions but produced the highest amount of dibromoacetone (DBAC) and dibromoacetonitrile (DBAN). SN - 0160-4120 UR - https://www.unboundmedicine.com/medline/citation/14680887/Effect_of_NOM_characteristics_on_brominated_organics_formation_by_ozonation_ DB - PRIME DP - Unbound Medicine ER -