Bulk volume fermenter
US4672691A · kind A · utility
28Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1985 |
| Grant date | Jun 16, 1987 |
| Priority date | — |
| Expiry date | Dec 6, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/30
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A fermentation pond has a cover and gas-collection system that includes a gas-impermeable membrane resistant to the elements and resistant to chemical deterioration by both the contents of the pond and any biogas generated by fermentation in the pond. The membrane overlies the full surface of the pond. A biogas collection conduit is positioned at the surface of the pond and under the membrane, and weights are located so as to urge the membrane downwardly along lines separated from each other so as to define between the lines a plurality of channels along which biogas can pass to the collection conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.