Method for removing ionic species from desalination unit
US8864911B2 · kind B2 · utility
2Cited by
9References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 26, 2009 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | May 3, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/124
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for removing ionic species from a desalination unit, comprises: (a) circulating a wash stream in a closed loop comprising a desalination unit and a precipitation unit, the wash stream flowing at a linear velocity of at least 5 cm/second through the desalination unit, the wash stream becoming more saline after passage through the desalination unit; and (b) removing a portion of calcium sulfate from the wash stream by precipitation in the precipitation unit to obtain a supersaturation degree of calcium sulfate in the wash stream entering the desalination unit in a range of from about 1.0 to about 3.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.