Method of treating mine drainage
US6932909B2 · kind B2 · utility
15Cited by
20References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 31, 2002 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Mar 3, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/919
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method of treating mine drainage water including the step of adding a scale control agent to the mine drainage water and, optionally, adding an oxidizing agent to the mine drainage water and/or precipitating and settling the metals in their hydroxide form from the water. The treated water may be safely returned to the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.