Process for removal of emission gas pollutants by biological means
US4544381A · kind A · utility
32Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 13, 1984 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Jul 13, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/916
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method for scrubbing gases containing oxygen, that are polluted by biodegradable substances, by bringing them into contact with an aqueous suspension of microorganisms such that: PA0 (a) the period of contact between gas and suspension is 0.5-5 seconds; PA0 (b) the suspension is brought into contact with the gas again after a retention time of 3-10 minutes has been attained; PA0 (c) the suspension is continuously supplied with active biomass in amounts between 0.5% and 5% of the aqueous suspension whereby PA0 (d) the excess suspension is drawn off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.