Method for treating water containing manganese
US7273556B2 · kind B2 · utility
2Cited by
9References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2001 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Nov 6, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/912
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a method for treating water for human consumption, so as to eliminate manganese and possibly other metals comprising steps which consist in: causing said water to pass at least over a bed of filtering material (3) consisting at least partly of manganese dioxide granules, said granules having a real density ranging between 3.5 and 4.5 and a hardness higher than 6 on the Mosh scale; regenerating, if necessary, said manganese dioxide, said regeneration being carried out mechanically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.