Chlorination of humic materials: Byproduct formation and chemical interpretations

Journal Article · Thu Nov 01 00:00:00 EST 1990 · Environmental Science and Technology; (USA)

DOI:https://doi.org/10.1021/es00081a005· OSTI ID:6039813

Reckhow, D A ^[1]; Singer, P C ^[2]; Malcolm, R L ^[3]

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1. Univ. of Massachusetts, Amherst (USA)
2. Univ. of North Carolina, Chapel Hill (USA)
3. Geological Survey, Denver, CO (USA)

Ten aquatic humic and fulvic acids were isolated and studied with respect to their reaction with chlorine. Yields of TOX, chloroform, trichloroacetic acid, dichloroacetic acid, dichloroacetonitrile, and 1,1,1-trichloropropanone were measured at pH 7 and 12. Humic acids produced higher concentrations than their corresponding fulvic acids of all byproducts except 1,1,1-trichloropropanone. Chlorine consumption and byproduct formation were related to fundamental chemical characteristics of the humic materials. A statistical model was proposed for activated aromatic content based on {sup 13}C NMR and base titration data. The values estimated from this model were found to be well correlated with chlorine consumption. Specific by-product formation was related to UV absorbance, nitrogen content, or the activated aromatic content.

• OSTI ID: 6039813
• Journal Information: Environmental Science and Technology; (USA), Vol. 24:11; ISSN 0013-936X
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
FULVIC ACIDS
CHLORINATION
HUMIC ACIDS
CHEMICAL REACTIONS
CHLOROFORM
NUCLEAR MAGNETIC RESONANCE
ORGANIC CHLORINE COMPOUNDS
PH VALUE
STATISTICAL MODELS
CHLORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
HALOGENATION
MAGNETIC RESONANCE
MATHEMATICAL MODELS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
RESONANCE
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)