Method for the removal of heavy metals from acidic wastewater and chemical solutions
US7105094B1 · kind B1 · utility
5Cited by
7References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 6, 2005 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Oct 6, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/912
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method which uses a process reactor having three separate reaction stages to remove high concentrations of heavy metals from acidic wastewater and chemical solutions. During each of three stages the pH level of the wastewater is increased and sludge and flocculate organic and metal hydrocyl matters are removed from the wastewater to provide clean water which is discharged in to a sewer system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.