Selenium adsorption process
US4971702A · kind A · utility
11Cited by
10References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 22, 1989 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Aug 22, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/912
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Selenium can be removed from wastewater by contacting the wastewater with an adsorbent which is fly ash, peat moss, or a mixture thereof. The treated wastewater can then be discharged to the ground, and the spent adsorbent can be used as landfill or to enrich soils which are depleted in selenium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.