Study of adsorption-desorption of contaminants on single soil particles using the electrodynamic thermogravimetric analyzer

Study of adsorption-desorption of contaminants on single soil particles using the electrodynamic thermogravimetric analyzer

The electrodynamic thermogravimetric analyzer was used to study isothermal adsorption and desorption of toluene and carbon tetrachloride on individual particles of montmorillonite clay and Spherocarb and Carbopack chars. One monolayer of hydrocarbon, approximately the size needed to cover the surfac...

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Bibliographic Details
Published in:Environmental science & technology Vol. 25; no. 1; pp. 104 - 109
Main Authors: Tognotti, Leonardo, Flytzani-Stephanopoulos, Maria, Sarofim, Adel Fares, Kopsinis, Harris, Stoukides, Michael
Format: Journal Article
Language:English
Published: United States American Chemical Society 01-01-1991
Subjects:
540220 - Environment, Terrestrial- Chemicals Monitoring & Transport- (1990-)
ADSORPTION
ALKYLATED AROMATICS
AROMATICS
CARBON TETRACHLORIDE
CHEMICAL ANALYSIS
CHEMISTRY
CHLORINATED ALIPHATIC HYDROCARBONS
CLAYS
DATA
DESORPTION
ENVIRONMENTAL SCIENCES
EXPERIMENTAL DATA
GRAVIMETRIC ANALYSIS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MEASURING METHODS
MEDIUM TEMPERATURE
MONTMORILLONITE
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SOIL CHEMISTRY
SOILS
SORPTION
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
TOLUENE
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Description
Summary:The electrodynamic thermogravimetric analyzer was used to study isothermal adsorption and desorption of toluene and carbon tetrachloride on individual particles of montmorillonite clay and Spherocarb and Carbopack chars. One monolayer of hydrocarbon, approximately the size needed to cover the surface area of the particle, was found to be the maximum amount adsorbed onto all particle types. In general, more carbon tetrachloride than toluene was adsorbed on all three particle types. Montmorillonite adsorbed the greatest and Carbopack adsorbed the least amount of both compounds.
Bibliography:ark:/67375/TPS-19CS26BL-7
istex:6DB295ADB70E6B33A644C7FD3D8E6E239BCBF7A3
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0013-936X
1520-5851
DOI:10.1021/es00013a010