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CWM PO*WW*ER™ EVAPORATION-CATALYTIC OXIDATION TECHNOLOGY - APPLICATIONS ANALYSIS REPORT
Citation:
Labunski, S. CWM PO*WW*ER™ EVAPORATION-CATALYTIC OXIDATION TECHNOLOGY - APPLICATIONS ANALYSIS REPORT. EPA/540/AR-93/506 (NTIS 94-124658), 1993.
Impact/Purpose:
publish information
Description:
This report evaluates the Chemical Waste Management, Inc. (CWM), PO*WW*ER™ technology’s ability to remove volatile organic compounds (VOC), semivolatile organic compounds (SVOC), ammonia, cyanide, metals, and other inorganic contaminants from aqueous wastes. This evaluation is based on treatment performance and cost data obtained from the Super-fund Innovative Technology Evaluation (SITE) demonstration and 11 case studies conducted by CWM. The PO*WW*ERT™ system reduces the volume of an aqueous waste and catalytically oxidizes volatile contaminants. The PO*WW*ER™ system consists primarily of (1) an evaporator that reduces influent wastewater volume, (2) a catalytic oxidizer that oxidizes the volatile contaminants in the vapor stream from the evaporator, (3) a scrubber that removes acid gases formed during oxidation, and (4) a condenser that condenses the vapor stream leaving the scrubber. The PO*WW*ER™ system demonstration was conducted under the SITE program at CWM’s Lake Charles Treatment Center (LCTC) site in Lake Charles, Louisiana. The SITE demonstration was conducted in September 1992. During the demonstration, the PO*WW*ER™ system treated landfill leachate, an F039 hazardous waste, contaminated with VOCs, SVOCs, ammonia, cyanide, metals, and other inorganic contaminants. During the development of the PO*WW*ER™ system, CWM conducted bench- and pilot-scale tests and collected treatability data for the following aqueous wastes: (1) landfill leachate, (2) contaminated well water, (3) contaminated lagoon water, (4) fuels decant water, (5) oil emulsion wastewater, and (6) wastewater contaminated with nitrogen-containing organic compounds and cyanide. During these tests, the PO*WW*ER™ system processed aqueous wastes containing VOCs, SVOCs, pesticides, herbicides, solvents, heavy metals, cyanide, ammonia, nitrate, chloride, and sulfide. Based on the results of the SITE demonstration and other case studies, the following conclusions can be drawn: 1) The PO*WW*ER™ system can process a wide variety of aqueous wastes with differing contaminant concentrations. 2) During the SITE demonstration, the PO*WW*ER™ system achieved a total solids (TS) concentration ratio of about 32 to 1. During other case studies conducted by CWM, a TS concentration ratio ranging from 35 to 1 to 50 to 1 was achieved. 3) During the SITE demonstration, the TS concentration in the brine ranged from 50 percent to 56 percent. During other case studies conducted by CWM, the TS concentration in the brine ranged from 28 to 80 percent. 4) Concentrations of VOCs and SVOCs in the product condensate exiting the PO*WW*ER™ system condenser were below their respective detection limits of 5 to 10 ug/L and 10 to 130 ug/L.
URLs/Downloads:
CWM PO*WW*ER™ EVAPORATION-CATALYTIC OXIDATION TECHNOLOGY - APPLICATIONS ANALYSIS REPORT540_AR-93_506.PDF (PDF, NA pp, 1 KB, about PDF)