Process for dye removal
US5611934A · kind A · utility
17Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1995 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | Dec 18, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/917
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for dye removal from effluent is disclosed which includes treating the effluent with a reducing agent, adjusting the pH to a selected value in the range of 2-7, treating the effluent with a particular charge neutralization mixture, adjusting the pH a second time and subjecting the mixture to a flocculating process with selected chemicals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.