Removal of sparingly soluble organic chemicals from aqueous solutions with surfactant-coated ferrihydrite
Journal Article
·
· Environmental Science and Technology; (United States)
- Illinois Inst. of Tech., Chicago (United States)
A surfactant, sodium dodecyl sulfate (SDS), was adsorbed onto ferrihydrite at low pH and desorbed at high pH. Adsorption isotherms of SDS on ferrihydrite yielded an S-shaped curve typical for surfactant adsorption on mineral surfaces. This behavior is due to the surfactant forming aggregate structures on the solid surface. SDS adsorption and desorption experiments revealed that both processes were fast, with equilibrium being reached within 1 h. Toluene, p-xylene, and trichloroethylene sorption experiments demonstrated that the SDS-coated ferrihydrite was able to remove these sparingly soluble organic chemicals (SSOCs) from solution. The amount of SSOC sorbed was directly related to the amount of SDS coating the ferrihydrite. The SSOC with the lowest solubility (p-xylene) had higher removals than the high-solubility SSOC (TCE).
- OSTI ID:
- 5446540
- Journal Information:
- Environmental Science and Technology; (United States), Journal Name: Environmental Science and Technology; (United States) Vol. 25:9; ISSN ESTHA; ISSN 0013-936X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
540250* -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
540350 -- Environment
Aquatic-- Site Resource & Use Studies-- (1990-)
ADSORPTION
ADSORPTION ISOTHERMS
ALKALI METAL COMPOUNDS
ALKYLATED AROMATICS
AROMATICS
CHEMICAL PREPARATION
CHLORINATED ALIPHATIC HYDROCARBONS
CLEANING
DATA
DECONTAMINATION
DESORPTION
EXPERIMENTAL DATA
GROUND WATER
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
IRON COMPOUNDS
ISOTHERMS
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
SODIUM COMPOUNDS
SODIUM SULFATES
SOLUBILITY
SORPTION
SORPTIVE PROPERTIES
SULFATES
SULFUR COMPOUNDS
SURFACE PROPERTIES
SURFACE WATERS
SURFACTANTS
SYNTHESIS
TOLUENE
TRANSITION ELEMENT COMPOUNDS
WATER
XYLENE-PARA
XYLENES
540250* -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
540350 -- Environment
Aquatic-- Site Resource & Use Studies-- (1990-)
ADSORPTION
ADSORPTION ISOTHERMS
ALKALI METAL COMPOUNDS
ALKYLATED AROMATICS
AROMATICS
CHEMICAL PREPARATION
CHLORINATED ALIPHATIC HYDROCARBONS
CLEANING
DATA
DECONTAMINATION
DESORPTION
EXPERIMENTAL DATA
GROUND WATER
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
IRON COMPOUNDS
ISOTHERMS
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
SODIUM COMPOUNDS
SODIUM SULFATES
SOLUBILITY
SORPTION
SORPTIVE PROPERTIES
SULFATES
SULFUR COMPOUNDS
SURFACE PROPERTIES
SURFACE WATERS
SURFACTANTS
SYNTHESIS
TOLUENE
TRANSITION ELEMENT COMPOUNDS
WATER
XYLENE-PARA
XYLENES