Influence of mineral bound humic acids on the sorption of hydrophobic organic compounds

Conference · Mon Jan 01 04:00:00 EST 1990 · American Chemical Society, Division of Environmental Chemistry, Preprints; (USA)

OSTI ID:6535123

Murphy, E M; Zachara, J M; Smith, S C ^[1]

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1. Battelle Pacific Northwest Laboratory, Richland, WA (USA)

Dissolved humic substances are present in many ground waters (Thurman, 1985) and have been shown to bind or associate with hydrophobic organic compounds (HOC) facilitating HOC transport. Dissolved humic substances may also absorb to mineral surfaces, rendering hydrophilic surfaces hydrophobic and making them sorbents for HOC. The objectives of this work were to (1) investigate the dependence of HOC sorptivity on the fractional surface coverage of mineral surfaces with humic substances, (2) to establish whether HOC sorptivity was influenced by the aromaticity/aliphilicity of the humic coating, and (3) to identify whether different mineral surfaces imparted a different structure to the adsorbed organic substances that affected HOC sorption.

• OSTI ID: 6535123
• Report Number(s): CONF-900402--
• Conference Information: Journal Name: American Chemical Society, Division of Environmental Chemistry, Preprints; (USA) Journal Volume: 30:1
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540310* -- Environment
Aquatic-- Basic Studies-- (1990-)
AROMATICS
CHEMISTRY
DATA ANALYSIS
DOCUMENT TYPES
HUMIC ACIDS
HYDROCARBONS
MEASURING METHODS
MINERALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
POLYCYCLIC AROMATIC HYDROCARBONS
PROCEEDINGS
SORPTION
WATER CHEMISTRY