Activated sludge process with in situ recovery of powdered adsorbent
US5068036A · kind A · utility
18Cited by
20References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1990 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Mar 30, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An improved powdered adsorbent enhanced sludge process for the treatment of wastewater is disclosed that allows for in situ recovery of unregenerated powdered adsorbent. In situ recovery is performed by contacting a mixture of activated sludge and spent powdered adsorbent at disassociation conditions whereby cell lysis occurs. The cell lysis allows for physical separation of the spent powdered adsorbent from the activated sludge, thus allowing for recycle of adsorbent without the need for a regeneration process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.