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Cited by 195Water Treatment and DisinfectionAdvanced oxidation water treatmentWater Quality and Resources Studies

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Decomposition of trihaloacetic acids and formation of the corresponding trihalomethanes in drinking water

Zhang, Xiangru, Minear, Roger A·2002·Water Research
DOI 10.1016/s0043-1354(02)00072-6
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Abstract

The decomposition of trihaloacetic acids [bromodichloroacetic acid (BDCAA), dibromochloroacetic acid (DBCAA), tribromoacetic acid (TBAA)], and the formation of the corresponding trihalomethanes [bromodichloromethane (BDCM), dibromochloromethane (DBCM), tribromomethane (TBM)] were studied. Like TBAA, the two mixed chlorobromo-species, BDCAA and DBCAA, were found to decompose to form BDCM and DBCM, respectively, via a decarboxylation pathway. The decomposition of BDCAA, DBCAA and TBAA in water at neutral pH follows a first-order reaction, with rate constants of 0.0011, 0.0062 and 0.040 day(-1) at 23 degrees C, respectively; and 0.000028, 0.00014 and 0.0016 day(-1) at 4 degrees C, respectively. The activation energies for the decomposition reaction of BDCAA, DBCAA and TBAA in water at neutral pH were found to be 35.0, 34.5 and 29.2 kcal/mol, respectively. The effect of pH in the range of 6-9 and the effect of a drinking water matrix on the decomposition of BDCAA, DBCAA, and TBAA in water were found to be insignificant. Measurement and health implications due to decomposition of trihaloacetic acids and formation of the corresponding trihalomethanes were discussed. By applying the technique of quantitative structure-activity relationships (QSAR), the decomposition rate constants of six iodinated trihaloacetic acids were estimated.

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Research works printed but not linked: 17

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Metadata

Authors
Zhang, X., & Minear, R. A.
Affiliations
University of Illinois Urbana-Champaign (US)
Corresponding author
Zhang, Xiangru
ORCID
Zhang, Xiangru
Venue
Water Research
Publisher
Elsevier BV
Published
2002-08
Volume
36
Issue
14
Pages
3665-3673
ISSN
0043-1354 (ISSN-L)
DOI
10.1016/s0043-1354(02)00072-6
OpenAlex
W2038172277
Cited by
195
References
0
Citations by year
2026: 4 · 2025: 12 · 2024: 9 · 2023: 10 · 2022: 13 · 2021: 14 · 2020: 11 · 2019: 10 · 2018: 13 · 2017: 10 · 2016: 6 · 2015: 10 · 2014: 10 · 2013: 9 · 2012: 9
FWCI
2.56
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • Water Research (publishedVersion)
  • PubMed (publishedVersion)
  • Rare & Special e-Zone (The Hong Kong University of Science and Technology) (submittedVersion)
Funders
  • U.S. Environmental Protection Agency
  • American Water Works Association Research Foundation
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Water Treatment and Disinfection
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
  • Physical Sciences › Environmental Science › Water Science and Technology › Water Quality and Resources Studies
Keywords
trihaloacetic acids, trihalomethanes, tribromoacetic acid, bromodichloromethane, dibromochloromethane, bromoform, decarboxylation, decomposition kinetics, activation energy, drinking water disinfection by-products, QSAR, health implications
MeSH terms
Acetates, Disinfectants, Hydrogen-Ion Concentration, Structure-Activity Relationship, Water, Water Supply

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CoChat. (2026). Citation check: Decomposition of trihaloacetic acids and formation of the corresponding trihalomethanes in drinking water. https://app.cochat.ai/papers/10.1016/s0043-1354(02)00072-6
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Zhang, X., & Minear, R. A. (2002). Decomposition of trihaloacetic acids and formation of the corresponding trihalomethanes in drinking water. Water Research. https://doi.org/10.1016/s0043-1354(02)00072-6