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-� HE CYCLO-PURGE SYSTEM by Waatemizer Corporatio i Nesconset,L I.New York EXECUTIVE ABSTRACT The Cyolo-Furge (Patenled) by Wastsmmer allows inexpens Ye, in situ, >•emediatlon of soil contaminated with solvents, tuels, and also semi-volatile materials Atmospheric emissions are eliminated by using a "closed-loop' flow path. The treated stream of air is re-injected into an underground well to evaporate the solvent in E place, and then is extracted through an adjacent well to be brought up to the surface. ! The air is passed through a heat pump to first cool, then reheat the air before + reinjecting it back Into the ground During the cooling process the solvent vapor is condensed and collected as a liquid in an appropriate receiver. The soil is left in pace when using this r Mhod of remediation, saving on the �- costs of excavation, freight and disposal The high cost of landfill disposal, soil incineration and/or air emission control apparatus are completely eliminated Overall ' remediation costs can be reduced as much as 90% using the Wastemizer Cyclo-Purge System An associated feature of the Cyclo-Purge System is the optional use of granular _ activated carbon (GAC). Soil vapor can be cleaned to virtual punty by incorporating GAC into the closed loop On-site regeneration of the saturated GAO, using the Cyclo- Purge apparatus, is done for approximately three cents per pound. The liability of transporting manifested hazardous waste is completely eliminated DETAILED PROCESS DESCRIPTION The Cyclo-Purge System permits the in-place, removal of volatile organic contaminants (VOC) from a permeable, soil formation with no vapor emission to the atmosphere. This can be achieved by using the principle of closed-loop air recirculation, This process eliminates the necessity to obtain an atmospheric _ emission, regulatory permit The traditional approach, which discharges residual air to 3 the atmosphere, must obtain a costly permit a f