Bromoform Formation in Ozonated Groundwater Containing Bromide and Humic Substances

The effect of bromide ion, organic carbon concentration (natural aquatic humic substances), pH, and solar irradiation on the formation of bromoform in ozonated groundwater has been studied. The studies were conducted on four unique samples of groundwater taken from different regions of the Biscayne...

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Bibliographic Details
Published in:Ozone: science & engineering 1986-01, Vol.8 (1), p.63-75
Main Authors: Cooper, William J., Amy, Gary L., Moore, Cynthia A., Zilca, Rod G.
Format: Article
Language:English
Subjects:
400500 - Photochemistry
Applied sciences
Bromate Ion
Bromide Ion
BROMINATED ALIPHATIC HYDROCARBONS
BROMINATION
BROMOFORM
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
Exact sciences and technology
GROUND WATER
Groundwaters
HALOGENATED ALIPHATIC HYDROCARBONS
HALOGENATION
HUMIC ACIDS
Humic Substances
HYDROGEN COMPOUNDS
Hypobromite Ion
Hypobromous Acid
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
Natural water pollution
ORGANIC ACIDS
ORGANIC BROMINE COMPOUNDS
Organic Carbon
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
Organo-Bromine Compounds
OXYGEN COMPOUNDS
Ozonated Groundwater
OZONIZATION
PH VALUE
PHOTOCHEMISTRY
Photodecomposition of HOBr/OBr
Pollution
WATER
Water treatment and pollution
YIELDS
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Summary:The effect of bromide ion, organic carbon concentration (natural aquatic humic substances), pH, and solar irradiation on the formation of bromoform in ozonated groundwater has been studied. The studies were conducted on four unique samples of groundwater taken from different regions of the Biscayne Aquifer in southern Florida. All other conditions being equal, increases in bromide ion concentrations resulted in increases in CHBrg formation. In three of the four samples, CHBr 3 formation decreased as the pH level increased from 5 to 9. The fourth sample exhibited an opposite trend whereby the CHBr 3 concentration increased with increasing pH. Bromoform concentration increased with increased O 3 concentration over an ozone dosage range of 3.4 to 6.7 mg/L.
ISSN:0191-9512
1547-6545
DOI:10.1080/01919518608552304