Method for stabilization of sludge
US4615809A · kind A · utility
55Cited by
27References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 1985 |
| Grant date | Oct 7, 1986 |
| Priority date | — |
| Expiry date | May 14, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S106/01
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method and means for the stabilization of organic sludges that includes combining the sludge with Portland cement, fly ash, calcium sulfate dihydrate, and lime, optimally with stabilizing agents such as clay, recycled rubber, and asphaltene, and an adsorbent for organic substances. The stabilized sludge compositions prepared in accordance with this method are characterized by a soil-like consistency and low-volume expansion relative to sludge volumes prior to stabilization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.