Apparatus for the removal of heavy metals from acidic wastewater and chemical solutions
US7048854B1 · kind B1 · utility
3Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2005 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Nov 9, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2301/08
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An apparatus which uses a process reactor having three separate reaction stages to remove high concentrations of 3000 mg/l 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 hydroxyl 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.