Method for treatment of solid waste to minimize permeability of the waste
US5591116A · kind A · utility
11Cited by
7References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1995 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Jun 9, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S588/901
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
This invention relates to the treatment of contaminated materials including soils and solids to reduce its permeability, and in particular to chemical treatment of waste or solids containing high levels of heavy metals such as lead, by treating the waste or solid with an additive such as monocalcium phosphate either alone or in combination with Portland Cement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.