Water treatment method using an inorganic powder reagent with high specific surface area including a step of recycling said reagent
US7172701B2 · kind B2 · utility
83Cited by
11References
29Claims
0Family size
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Key dates
| Filing date | Nov 21, 2003 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Mar 12, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/903
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method of treating water including mixing the water with an inorganic powder reagent for reducing the content of organic matter. The water, after being mixed with the inorganic powder reagent, is subjected to a membrane separation step that produces blow off products that are then separated into two fractions: a first fraction containing a majority portion of the powder reagent in a first stream of water, and a second fraction containing a majority portion of inorganic matter not absorbed on the inorganic powder reagent rejected by the membrane separation step in a second stream of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.