Effluent treatment
US4622149A · kind A · utility
39Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1985 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Apr 29, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/912
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process in which ferric ion in water-soluble form is added to an effluent containing cyanide, arsenic and antimony and having a pH of about 5 to 9 and treating effluent with SO.sub.2 and oxygen in the presence of soluble copper to produce a treated effluent having very low contents of cyanide, arsenic and antimony.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.