Trimethylphenylammonium-Smectite as an effective adsorbent of water soluble aromatic hydrocarbons
- Michigan State Univ., East Lansing (United States)
Homoionic trimethylphenylammonium (TMPA)- and tetramethylammonium (TMA)-clays were prepared by ion-exchange reactions using two smectite clays that differed in their cation exchange capacities and surface charge densities. These clays are referred to as a low-charge (SAC) and high-charge (SWa)-smectite. The organo-clays were evaluated as adsorbents of water soluble aromatic hydrocarbons including benzene, toluene, ethylbenzene, p-xylene, butylbenzene, and naphthalene. All of the aromatic hydrocarbons tested were effectively removed from water by the low-charge TMPA-smectite. The low-charge TMA-smectite was an effective adsorbent for benzene but was ineffective in the removal of the alkylbenzenes and naphthalene from water. The effect of surface charge on the adsorption properties of TMPA-smectite was pronounced. The uptake of benzene and toluene by the high-charge TMPA-smectite was greatly reduced as compared to the low-charge TMPA-smectite. These results suggest the utility of TMPA-smectite as a liner material for petroleum storage containers and waste disposal reservoirs. The use of TMPA-smectite in conjunction with Na-smectite would provide a barrier with the ability to impede the flow of water and to effectively adsorb dissolved organic contaminants.
- OSTI ID:
- 5935345
- Journal Information:
- Journal of the Air and Waste Management Association; (United States), Journal Name: Journal of the Air and Waste Management Association; (United States) Vol. 40:12; ISSN JAWAE; ISSN 1047-3289
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020800 -- Petroleum-- Waste Management
54 ENVIRONMENTAL SCIENCES
540250* -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
ADSORPTION
ALKYLATED AROMATICS
AMMONIUM COMPLEXES
AROMATICS
BENZENE
CLAYS
COMPLEXES
CONDENSED AROMATICS
CONTAINERS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
LINERS
MANAGEMENT
MINERALS
NAPHTHALENE
ORGANIC COMPOUNDS
PETROLEUM
POLLUTION
POLYCYCLIC AROMATIC HYDROCARBONS
SILICATE MINERALS
SMECTITE
SORPTION
SORPTIVE PROPERTIES
STORAGE
SURFACE PROPERTIES
TOLUENE
USES
WASTE DISPOSAL
WASTE MANAGEMENT
WATER POLLUTION
XYLENE-PARA
XYLENES