Processes for decontaminating polluted substrates
US5110364A · kind A · utility
41Cited by
8References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1989 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Jul 27, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Substrates polluted with toxic substances are treated in-situ with solvated electrons prepared chemically or electrochemically. The process is useful in treating porous and nonporous substrates, such as earth, clay, sand, soils, concrete, asphalt, wood, brick, block and other masonry surfaces, including liquids such dielectric fluids contaminated with halogenated hydrocarbons without the usual separation procedures to provide substrates suitable for recycle having <1 ppm pollutant remaining.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.