Waste treatment system
US5018457A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1989 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Jun 16, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23J2900/15004
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Method and apparatus for processing hazardous waste by incinerating the hazardous waste to a temperature sufficient to break down the hazardous waste; directing at least a portion of the exhaust gas stream produced by the incineration through a spray dryer; passing all of the gas stream from the incineration including that portion exiting the spray dryer through a scrubbing and absorbing device to remove particulates and acid gas from the gas stream by contacting the gas stream with a scrubbing and acid gas absorbing slurry or solution; separating a portion of the scrubbing and acid gas slurry or solution after contact with the gas stream as a waste liquor; and spraying the waste liquor into the exhaust gas stream passing through the spray dryer to evaporate the water in the waste liquor and produce a dry residue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.