Process for the anaerobic digestion of liquid wastes
US5591342A · kind A · utility
16Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1996 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Mar 18, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An anaerobic digestion process for the removal of the organic matter contained in a liquid waste, notably raw water, subjects the waste to an acidogenesis stage and then to a methanogenesis stage. The waste, which has been subjected to the acidogenesis stage, is subjected to a stage of separation by settling, before the methanogenesis stage. At least part of the sludge separates during this intermediate stage. Part of the treated water is recycled to the acidogenesis stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.