Destabilization of sludge with hydrolyzed dasheen starch flocculants
US4502960A · kind A · utility
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4References
5Claims
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Key dates
| Filing date | Dec 16, 1983 |
| Grant date | Mar 5, 1985 |
| Priority date | — |
| Expiry date | Dec 16, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/907
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Dasheen starch hydrolyzed in the presence of insoluble metal salts formed in situ is a surprisingly effective flocculant for destabilizing dilute as well as thick sludge suspensions and is particularly effective when used in the treatment of bituminous tar sands tailings and in phosphate slimes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.