Wastewater treatment method
US4632759A · kind A · utility
15Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1985 |
| Grant date | Dec 30, 1986 |
| Priority date | — |
| Expiry date | Mar 29, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/928
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
At anaerobic treatment of wastewater it was found that resin and fatty acids in the wastewater have a toxic effect on the bacteria culture. According to the invention, this is solved by additions of iron or aluminium and calcium or magnesium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.