Process and apparatus for the anaerobic treatment of waste water in a filter including granular material
US4482458A · kind A · utility
64Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1983 |
| Grant date | Nov 13, 1984 |
| Priority date | — |
| Expiry date | Sep 22, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Waste water to be treated is introduced into a filter including granular material for supporting the biomass resulting from an anaerobic treatment operation. During such treatment operation biogas is formed, and the waste water being treated and the granular material supporting the biomass are continuously circulated by injecting a portion of the biogas into a tube extending vertically upwardly through the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.