Wastewater treatment method
US4614587A · kind A · utility
20Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1985 |
| Grant date | Sep 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 wastewaters from forestry industries there is the problem, that the wastewaters contain toxically acting complexing agents. According to the invention this problem is solved by the addition of a metal selected from the group iron, calcium, magnesium and aluminum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.