Biofilter for the treatment of sour water
US4880542A · kind A · utility
14Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 1988 |
| Grant date | Nov 14, 1989 |
| Priority date | — |
| Expiry date | May 13, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for oxidizing the sulfide (H.sub.2 S, HS.sup.-, S.sup.-2) in sour water to convert the sulfide to sulfate by producing a sulfide tolerant strain of Thiobacillus denitrificans and then co-immobilizing the T. denitrificans and CaCO.sub.3 on or within a carrier to form the biofilter. The sour water is contacted with the biofilter in a continuous process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.