Methods of treating wastewater
US5695647A · kind A · utility
11Cited by
29References
55Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 19, 1996 |
| Grant date | Dec 9, 1997 |
| Priority date | — |
| Expiry date | Apr 19, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/908
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention provides methods of treating or clarifying a turbid wastewater containing at least one contaminant selected from the group consisting of proteinaceous materials, fats, oils, and other biological contaminants. The methods of the present invention include the steps of (a) contacting turbid wastewater to cellulose ester fibrets under conditions sufficient to flocculate the contaminant to form a treatment suspension, and then (b) separating the flocculants from the treatment suspension to provide a clarified wastewater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.