Development of Pilot Scale Chlorinated Organic Vapor Phase Alkaline Destruction, COVPAD, Unit

EPA Contract Number: 68D40077
Title: Development of Pilot Scale Chlorinated Organic Vapor Phase Alkaline Destruction, COVPAD, Unit
Investigators: Clarke, Ann N.
Small Business: Eckenfelder Inc.
EPA Contact: Manager, SBIR Program
Phase: II
Project Period: September 1, 1994 through September 1, 1996
Project Amount: $165,000
RFA: Small Business Innovation Research (SBIR) - Phase II (1994) RFA Text |  Recipients Lists
Research Category: Hazardous Waste/Remediation , SBIR - Waste , Small Business Innovation Research (SBIR)


The cost of off-gas treatment during remediation of hazardous waste sites can typically increase the cost by 50 percent or more. This research is targeted towards developing a simple, cost effective technology to destroy chlorinated organic solvents in the vapor phase. The process uses commercial lime at an elevated temperature. The research involves the design and testing of a pilot-scale unit in a temperature range of 350 to 500 degrees C. The thermodynamics have been evaluated for the destruction of several chlorinated solvents. The very large negative value for the Gibbs Free Energy of Formation, (delta) G?, on the order of -1,000 kg/mole, for each reaction indicates that the reactions should occur spontaneously. Bench scale tests indicate that 90 percent destruction can be achieved in non-optimized systems.

Supplemental Keywords:

Chlorinated, Organic, Vapor, Phase, Alkaline, Destruction, Thermal, SVE., RFA, Scientific Discipline, Air, Waste, Chemical Engineering, Remediation, Environmental Chemistry, Chemistry, Civil/Environmental Engineering, Hazardous Waste, Engineering, Hazardous, Engineering, Chemistry, & Physics, Environmental Engineering, alkaline destruction, chlorinated solvent, chlorinated organic vapor phase alkaine destruction (COVPAD), organic vapor phase, chlorinated organic vapor phase, chlorinated organics, chlorinated organic vapor phase alkaline destruction (COVPAD), chlorinated solvents

Progress and Final Reports:

  • Final

  • SBIR Phase I:

    An Innovative Technology for the Destruction of Chlorinated Compounds in the Vapor Phase