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JUL-02-99 15:24 From:URS GREINER SF 4153981904 T-834 P 02/07 Job-859 <br /> , <br /> Above,the Geo-Cleanse Treatment Program and injection r, <br /> Is underway at an Industrial facility in Connecticut.Right,a <br /> technician Checks an active Injector at an Industrial facility. <br /> .0 , <br /> Drip PHIFER T <br /> STSTEN rnpurfs pose non-acluedaunting challenges <br /> liquids <br /> (DNAPLQ in soil and groundwater <br /> past daunting chailenges for <br /> environmental remediation. <br /> Problems begin with delineation of <br /> OXI��TI01V PVTUF contaminated soil and groundwater <br /> and continue with selecting a remediation <br /> alternative that meets both the cleanup <br /> objectives imposed by regulators and the cost <br /> restraints imposed by clients.The challenges of <br /> Remediation of chlorinated solvents DNAPL remediation have led to research, <br /> at two government sites tests capabilities development and improvement of numerous <br /> ex�itu and in-situ alternatives,including <br /> pump-and-treat,soil vapor or dual phase <br /> extraction,air sparging and reactive wall <br /> By J. Daniel Bryant, Ph.D. and James T. Wilson technologies. <br /> One emerging technology is in-situ chemical <br /> oxidation using Penton's reagent.Chemical <br /> 6 August/September 19v8 Soil 9 Groundwater Cleanup <br />