Apparatus and method for disposal of hazardous waste material
US4615283A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1984 |
| Grant date | Oct 7, 1986 |
| Priority date | — |
| Expiry date | Sep 26, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S588/90
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A waste disposal system for the combustion of waste materials, that may include toxic chemical waste, wherein the wastes are combusted in a combustion unit with combustion gases directly discharged into a refractory lined housing having a plurality of ceramic filters disposed in the gas outlet wall thereof. The combustion gases are maintained in the refractory lined housing for a period of time sufficient to effect combustion of the major portion of residual vaporous waste constituents therein and then passed through the ceramic filters to remove the remainder of said vaporous waste constituents and the residual solid waste constituents. The waste-free, hot combustion gases, after passage through the filters, are directed to a heat exchanger for recovery of heat values therefrom. Soils contaminated with a toxic chemical waste may be decontaminated by charging the soil as a portion of a combustible waste charge to the combustion unit, with the toxic chemical waste subjected to combustion, with the resultant decontaminated soil, along with ash from the combustible waste used as a landfill.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.