Method of treating water with an inorganic powder reagent
US7678278B2 · kind B2 · utility
19Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2006 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Jun 14, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2305/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for treating water is provided where the water is mixed with an inorganic reagent powder such as powder activated carbon. Organics and micropollutants are absorbed by the reagent powder. After the reagent powder has been mixed with the water, the water is directed to a setting tank and sludge from the water settles to produce a clarified effluent. Forming a part of the sludge is the reagent powder previously added. Sludge is collected and directed to a separator that separates the reagent powder from the sludge. Separated reagent powder is recycled and mixed with the water being treated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.