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 Aquifer in southern Florida. All other conditions being equal, increases in bromide ion concentrations resulted in increases in CHBr/sub 3/ formation. In three of the four samples, CHBr/sub 3/ formation decreased as the pH level increased from 5 to 9. The fourth sample exhibited an opposite trend whereby the CHBr/sub 3/ concentration increased with increasing pH. Bromoform concentration increased with increased O/sub 3/ concentration over an ozone dosage range of 3.4 to 6.7 mg/L. Ozonated samples placed in sunlight immediately after ozone addition showed a decrease in the formation of CHBr/sub 3/ presumably due to the photodecomposition of HOBr/OBr.
- Research Organization:
- Florida International Univ., Miami (USA). Drinking Water Research Center
- OSTI ID:
- 6705615
- Report Number(s):
- PB-87-145629/XAB
- Resource Relation:
- Other Information: Published in Ozone Science and Engineering, Vol. 8, No. 1, 63-76(Jan 1986)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BROMOFORM
OZONE
GROUND WATER
PRODUCTION
BROMIDES
CHEMICAL REACTIONS
BROMINATED ALIPHATIC HYDROCARBONS
BROMINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROGEN COMPOUNDS
ORGANIC BROMINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
WATER
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)