Interactions between Bromine and Natural Organic Matter

Rengao Song, Paul Westerhoff, Roger A. Minear, Gary L. Amy

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Bromine reacts quickly with natural organic matter (NOM) to form bromide and organo-bromine species. Bromine consumption by NOM occurs rapidly and the pseudo first order rate constants for bromine decomposition are on the order of 0.12 to 1.3 × 10-3 s-1 (DOC = 3 mg/L, pH = 7.5, and bromine dose = 5 μm); values decrease for preozonated NOM (0.11 to 0.24 × 10-3 s-1). Based on multiple pH experiments, both hypobromous acid (HOBr) and hypobromite (OBr-) appear to react with equally with NOM under experimental conditions in this study. Bromine reduction by NOM appears to contribute to 80% of the reaction, while bromine incorporation into NOM accounts for the remaining 20%. The formation of organo-bromine species was noted to be extremely rapid (< 5 minutes) for DOC = 3 mg/L, pH = 7.5, and bromine dose = 5 μm. Overall, reactions between bromine and NOM may significantly influence the formation of disinfection by-products (DBPs) such as bromate during ozonation of bromide containing waters.

Original languageEnglish (US)
Pages (from-to)296-321
Number of pages26
JournalACS Symposium Series
Volume649
StatePublished - 1996

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Bromine
Biological materials
Bromides
Bromates
Ozonization
Disinfection
Byproducts
Rate constants
Decomposition

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Song, R., Westerhoff, P., Minear, R. A., & Amy, G. L. (1996). Interactions between Bromine and Natural Organic Matter. ACS Symposium Series, 649, 296-321.

Interactions between Bromine and Natural Organic Matter. / Song, Rengao; Westerhoff, Paul; Minear, Roger A.; Amy, Gary L.

In: ACS Symposium Series, Vol. 649, 1996, p. 296-321.

Research output: Contribution to journalArticle

Song, R, Westerhoff, P, Minear, RA & Amy, GL 1996, 'Interactions between Bromine and Natural Organic Matter', ACS Symposium Series, vol. 649, pp. 296-321.
Song, Rengao ; Westerhoff, Paul ; Minear, Roger A. ; Amy, Gary L. / Interactions between Bromine and Natural Organic Matter. In: ACS Symposium Series. 1996 ; Vol. 649. pp. 296-321.
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