Anaerobic digestion method
US4985149A · kind A · utility
22Cited by
6References
1Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 20, 1989 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Mar 20, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S241/38
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Sewage sludge or an agricultural or fish waste material is subjected to pretreatment in the form of wet mill treatment and then is subjected to anaerobic digestion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.