Method for dewatering of sludge
US6413433B1 · kind B1 · utility
6Cited by
15References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Aug 31, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/28
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for dewatering of sludge, wherein said sludge comprises solids and water, comprising the steps of:a) adding a cationic dispersion polymer and a microparticle to said sludge, wherein said cationic dispersion polymer can be added before or after or simultaneous with the addition of said microparticle; andb) physically separating said solids from said water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.