Competitive adsorption of VOCcs and BOM: Oxic and anoxic environments
The effect of the presence of molecular oxygen on the adsorption of volatile organic compounds (VOCs) in distilled Milli-Q water and in water supplemented with background organic matter (BOM) is evaluated. Experiments are conducted under conditions where molecular oxygen is present in the test environment (oxic adsorption), and where oxygen is absent from the test environment (anoxic adsorption). Adsorption isotherms for tetrachloroethylene (PCE) and trichloroethylene (TCE) in Milli-Q water showed no impact of the presence of oxygen on their adsorption behavior, while adsorption isotherms for cis-1,2-dichloroethylene (DCE) showed higher capacities under toxic conditions. The Ideal Adsorbed Solution Theory (IAST) successfully predicted the VOCs anoxic adsorption isotherms in BOM. However, the IAST model did not predict the VOCs oxic adsorption isotherms in BOM.
- Research Organization:
- Cincinnati Univ., OH (United States). Dept. of Civil and Environmental Engineering
- OSTI ID:
- 6528186
- Report Number(s):
- PB-95-148144/XAB; CNN: EPA-R-816700
- Resource Relation:
- Other Information: Pub. in Jnl. of the International Association of Water Quality, Vol. 28, No. 9, 1907-1919(Sep 1994)
- Country of Publication:
- United States
- Language:
- English
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