Process for cleaning a waste water stream or the like
US5830357A · kind A · utility
4Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1996 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Oct 15, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/903
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a process for cleaning a waste water stream or the like, comprising: a desulphurization step, in the form of addition of a desulphurizing agent, and addition of a buffer; followed by a biodenitrification step carried out by micro-organisms which feed on the buffer remaining in the waste-water stream of the desulphurization step; wherein sulphur contamination and the like is removed in the desulphurization step and wherein nitrate contamination and the like as well an the buffer, are removed in the bio-denitrification step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.