Method for sludge conditioning
US5614458A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1995 |
| Grant date | Mar 25, 1997 |
| Priority date | — |
| Expiry date | Jun 30, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/92
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for conditioning sludge is disclosed which includes adding a treatment material to the sludge, the treatment material including pieces of cellulose with a hydrophobic agent applied thereto. A method for conditioning sludge is disclosed which includes adding a treatment material to the sludge, and the treatment material including pieces of cellulose with wax applied thereto, the pieces of cellulose ranging in size between one-eighth inch and seven-sixteenths inch in a largest dimension and having about 0.5% to about 3% wax by weight, and at least ninety percent of surface area of the pieces of cellulose covered with wax. A method for conditioning sludge is disclosed which includes forming a slurry of sludge and pieces of cellulose treated with a hydrophobic agent, introducing the slurry into a sludge feed stream producing a secondary stream for feeding into sludge dewatering apparatus, and feeding the secondary stream into sludge dewatering apparatus to dewater sludge in the sludge dewatering apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.