Abstract

In four recently published articles, a process for the oxidation of bromide to bromine and the volatilization of bromine from drinking water sources was presented. This process was shown to be able to remove up to 35% percent of the bromide found naturally in the California State Water Project. Although bromide itself is quite harmless, it has been shown to react with commonly used disinfectants to produce compounds or disinfection by-products (DBPs) of suspected carcinogens. Bromide reacts with ozone to form bromate. This article presents two studies of pilot scale, flow-through electrolytic reactors that oxidize bromide to bromine and volatilize bromine at <pH 3.5, which occurs at the anode as a result of the oxidation of water. One reactor had 14 anodes that were 91 cm deep and the other had 13 anodes 1.2 cm deep. The bromide removal rates were studied at several different water flows and power settings for different bromide concentrations for both reactors. The results show removal of bromide is impacted by water flows and power settings for different bromide concentrations. Effluent from the deep reactor did show some reduction in bromate concentration as compared to control samples but the results were inconsistent. This appeared to be caused by significant differences in the ozone demand produced by different experimental conditions, difficulty determining the concentration of chlorine, and the use of hydrogen peroxide as a dechlorinating agent. Using the shallow reactor, these difficulties were overcome by developing a more consistent determining chlorine concentration, using much larger ozone doses to overwhelm the ozone demand, and by using ascorbic acid instead of hydrogen peroxide. With these changes, it could be shown that the electrolytic reactor not only lowered the concentration of bromide in the water but when ozonated, the amount of bromate formed was reduced in direct proportion to the amount of bromide removed for an equal dose of ozone.

Original languageEnglish (US)
Pages (from-to)269-279
Number of pages11
JournalOzone: Science and Engineering
Volume34
Issue number4
DOIs
StatePublished - Jul 2012

Fingerprint

Bromates
Ozonization
volatilization
Bromides
bromide
Vaporization
Electrolysis
Potable water
Drinking Water
Ozone
Bromine
electrokinesis
drinking water
Anodes
Water
bromine
Hydrogen peroxide
Chlorine
ozone
Disinfectants

Keywords

  • Bromate
  • Bromide removal
  • Electrolysis
  • Electrolytic Reactor
  • Oxidation
  • Ozonation
  • Ozone
  • Volatilization
  • Water

ASJC Scopus subject areas

  • Environmental Chemistry
  • Environmental Engineering

Cite this

Practical Studies of the Electrolysis and Volatilization of the Bromide from Drinking Water to Minimize Bromate Production by Ozonation. / Kimbrough, David Eugene; Boulos, Lina; Surawanvijit, Sirikarn; Westerhoff, Paul; An, Howard; Mel Suffet, I. H.; Dunahee, Nathan.

In: Ozone: Science and Engineering, Vol. 34, No. 4, 07.2012, p. 269-279.

Research output: Contribution to journalArticle

Kimbrough, David Eugene ; Boulos, Lina ; Surawanvijit, Sirikarn ; Westerhoff, Paul ; An, Howard ; Mel Suffet, I. H. ; Dunahee, Nathan. / Practical Studies of the Electrolysis and Volatilization of the Bromide from Drinking Water to Minimize Bromate Production by Ozonation. In: Ozone: Science and Engineering. 2012 ; Vol. 34, No. 4. pp. 269-279.
@article{33b8633da4ab4bcf81226646965d3cc1,
title = "Practical Studies of the Electrolysis and Volatilization of the Bromide from Drinking Water to Minimize Bromate Production by Ozonation",
abstract = "In four recently published articles, a process for the oxidation of bromide to bromine and the volatilization of bromine from drinking water sources was presented. This process was shown to be able to remove up to 35{\%} percent of the bromide found naturally in the California State Water Project. Although bromide itself is quite harmless, it has been shown to react with commonly used disinfectants to produce compounds or disinfection by-products (DBPs) of suspected carcinogens. Bromide reacts with ozone to form bromate. This article presents two studies of pilot scale, flow-through electrolytic reactors that oxidize bromide to bromine and volatilize bromine at",
keywords = "Bromate, Bromide removal, Electrolysis, Electrolytic Reactor, Oxidation, Ozonation, Ozone, Volatilization, Water",
author = "Kimbrough, {David Eugene} and Lina Boulos and Sirikarn Surawanvijit and Paul Westerhoff and Howard An and {Mel Suffet}, {I. H.} and Nathan Dunahee",
year = "2012",
month = "7",
doi = "10.1080/01919512.2012.692277",
language = "English (US)",
volume = "34",
pages = "269--279",
journal = "Ozone: Science and Engineering",
issn = "0191-9512",
publisher = "Taylor and Francis Ltd.",
number = "4",

}

TY - JOUR

T1 - Practical Studies of the Electrolysis and Volatilization of the Bromide from Drinking Water to Minimize Bromate Production by Ozonation

AU - Kimbrough, David Eugene

AU - Boulos, Lina

AU - Surawanvijit, Sirikarn

AU - Westerhoff, Paul

AU - An, Howard

AU - Mel Suffet, I. H.

AU - Dunahee, Nathan

PY - 2012/7

Y1 - 2012/7

N2 - In four recently published articles, a process for the oxidation of bromide to bromine and the volatilization of bromine from drinking water sources was presented. This process was shown to be able to remove up to 35% percent of the bromide found naturally in the California State Water Project. Although bromide itself is quite harmless, it has been shown to react with commonly used disinfectants to produce compounds or disinfection by-products (DBPs) of suspected carcinogens. Bromide reacts with ozone to form bromate. This article presents two studies of pilot scale, flow-through electrolytic reactors that oxidize bromide to bromine and volatilize bromine at

AB - In four recently published articles, a process for the oxidation of bromide to bromine and the volatilization of bromine from drinking water sources was presented. This process was shown to be able to remove up to 35% percent of the bromide found naturally in the California State Water Project. Although bromide itself is quite harmless, it has been shown to react with commonly used disinfectants to produce compounds or disinfection by-products (DBPs) of suspected carcinogens. Bromide reacts with ozone to form bromate. This article presents two studies of pilot scale, flow-through electrolytic reactors that oxidize bromide to bromine and volatilize bromine at

KW - Bromate

KW - Bromide removal

KW - Electrolysis

KW - Electrolytic Reactor

KW - Oxidation

KW - Ozonation

KW - Ozone

KW - Volatilization

KW - Water

UR - http://www.scopus.com/inward/record.url?scp=84864532333&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84864532333&partnerID=8YFLogxK

U2 - 10.1080/01919512.2012.692277

DO - 10.1080/01919512.2012.692277

M3 - Article

AN - SCOPUS:84864532333

VL - 34

SP - 269

EP - 279

JO - Ozone: Science and Engineering

JF - Ozone: Science and Engineering

SN - 0191-9512

IS - 4

ER -