Biotreatment process for caustics containing inorganic sulfides
US5480550A · kind A · utility
19Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 5, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | May 5, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G19/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A biological process is described for caustic waste streams containing inorganic sulfides to effect neutralization of the caustic and, oxidation of sulfides to sulfate. The process is based on the contact of these caustic streams with mixed, fiocculated cultures of a sulfide-oxidizing bacterium from the genus Thiobacillus and various heterotrophs. The process may also degrade any organic components present in the waste stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.