Evaluating Competitive Sorption Mechanisms of Volatile Organic Compounds in Soils and Sediments Using Polymers and Zeolites

2001 ◽  
Vol 35 (3) ◽  
pp. 568-574 ◽  
Author(s):  
Jun Li ◽  
Charles J. Werth
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Competitive Sorption ◽  
Soils And Sediments ◽  
Volatile Organic ◽  
Sorption Mechanisms

scholarly journals Interactions of ammonium-smectite with volatile organic compounds from leachates

Clay Minerals ◽  
2017 ◽  
Vol 52 (1) ◽  
pp. 143-159 ◽  
Author(s):  
Mathieu Gautier ◽  
Fabrice Muller ◽  
Lydie Le Forestier
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Van Der Waals Interactions ◽  
Methyl Tert Butyl Ether ◽  
Butyl Ether ◽  
Tert Butyl ◽  
Volatile Organic ◽  
High Concentrations ◽  
Sorption Mechanisms ◽  
Clay Barrier

AbstractThe percolation of water through waste landfills produces leachates with high concentrations of which can generate -exchanged clays within geochemical barriers. These leachates also contain several volatile organic compounds (VOCs) which can interact with the clay barrier. The aim of the present study was to characterize the sorption of eight short-chain VOCs (acetonitrile, methyl tert-butyl ether, dichloromethane, benzene, phenol, ethanol, acetone and aniline) on -smectite, and to identify their sorption mechanisms. The samples treated were characterized by carbon and nitrogen elemental analysis, infrared spectroscopy, powder X-ray diffraction, and thermogravimetric analysis. For acetonitrile, methyl tert-butyl ether, dichloromethane and benzene, no sorption was detected. Phenol, ethanol and acetone were sorbed very weakly, through Van der Waals interactions. Aniline molecules were sorbed strongly on -smectite mainly with hydrogen bonds between aniline and interlayer water molecules. However, aniline sorption decreased the hydrophilic character of the -smectite, which may increase the permeability of the clay barrier.

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