Method for dewatering alum sludge
US5000860A · kind A · utility
9Cited by
6References
18Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Aug 7, 1990 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Aug 7, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/912
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The dewaterability of alum sludge is improved by treating the alum sludge with low doses of hydrogen peroxide. The hydrogen peroxide enhances filterability and drainability of the alum sludge and also improves the resulting cake quality of the dewatered alum sludge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.