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| Environmental Technology Listing |
Title of Listing: | | CHEMICAL TREATMENT - DECHLORINATION |
Category: | | Treatment Technologies |
Subcategory: | * | Waste, Soil, All Listings |
Media: | | Soils, Sediments, Sludges |
Contaminants: | | PCBs, Dioxins, PCP, DDT, Chlorinated Aliphatics |
Web Site: | | |
Email: | | |
Technology Description: | |
CHEMICAL TREATMENT - DECHLORINATIONSDTX KPEG, (SM) process is a chemical dehalogenation technology for use on soils, sediments, and sludges. The chemistry has been demonstrated at various scales for PCBs, dioxins, PCP, DDT, and chlorinated aliphatics. Proprietary KPEG reacts with PCBs to produce an aromatic ether. This ether is insoluble in oil and can be separated from the oil at this point. A second reaction can further dechlorinate the molecule producing inorganic chlorides.
KPEG can be applied to liquids or to solids via a custom implementation to soils, sludges or sediments by retrofit of a commercial desorber.
In a typical system, contaminated soil or sludge is fed into a desorber with KPEG. The desorber heats the mixture to initiate the dechlorination. Vapors and treated soil or sludge exit the desorber.
Products of the reaction, free of organic chloride, can be readily disposed of or can be burned as fuel to fire the desorber. The technology was licensed for full-scale use at the Wide Beach Superfund site in New York where PCB concentrations were reduced to ppb order of magnitude.
Unlike other chemical dechlorination system, KPEG does not employ a hazardous solvent. This leads to safer and more cost-effective application. In addition, complete dechlorination can be achieved avoiding any questions about toxicity of the treated soil. |
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Performance Status/
Limitations: | |
Performance Status:
KPEG was developed and patented in 1978. The chemistry has a long and successful history in treatment of PCB contaminated transformer oil. SDTX has adapted the process for use on soils, sludges, and sediments. SDTX licensed the patent and technology to SoilTech, Inc. for use at the Wide Beach Superfund site in New York. This was the largest scale demonstration of the technology as well as the first use of it for treatment of PCBs at a Superfund site. Wide Beach further demonstrated the feasibility of retrofitting a desorber for application of KPEG.
Limitations:
KPEG is ineffective towards non-halogenated contaminants.
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Topics
Dioxins, PCBs, Pesticides/FIFRA, Technologies, Treatment/Remediation
Additional Topics/Tags/Keywords
Chemical Dechlorination, PCBs, KPEG |
Organization: | | SDTX TECHNOLOGIES, INC. |
Address: | | 706 Sayre Drive
| Phone: | Description | Number |
City: | | Princeton | | Primary | (518) 734-4483 |
State/Province/Territory: | | NY | 2. | | |
Zip/Postal Code: | | 08540 | 3. | | |
Country: | | United States | 4. | Fax: | (518) 734-5802 |
Branch Locations: | |
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