Remediation composition comprising alum sludge
US8940958B2 · kind B2 · utility
4Cited by
6References
15Claims
0Family size
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Key dates
| Filing date | Sep 30, 2010 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | May 31, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/5236
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Method for the stabilization of contaminants within a material selected from soils, mining tailings and by-products, sludge wastes and industrial wastes, by mixing the material with an alum sludge composition. The composition includes one or more aluminum compound(s) and/or complex(es) together with a reactive carbon material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.