ABSTRACT
Contamination of soils from past operations involving volatile organic compounds (VOCs), such as from leaking underground fuel storage tanks, has become a major environmental concern. A pilot scale field demonstration of the process using VOC-contaminated soils became the next phase in the development of the technology. The demonstrated process represents a significant breakthrough in the treatment of soils contaminated with VOCs. The process represents a unique mix of proven techniques combined in an innovative way to provide an efficient and cost-effective method of treatment. The cooled liquid fraction from the condenser is pumped to an oil/water separator to remove any oil present. The oil fraction is collected for offsite treatment and disposal. The water fraction is directed through a two-stage carbon adsorption system which removes any other contaminants in the water. The treated water is collected and sprayed onto the treated soils at the truck feed conveyor for cooling and dust control.
