Filter media
US8205755B2 · kind B2 · utility
1Cited by
26References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2007 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | Aug 5, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2101/322
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Aspects of the present disclosure provide composite carbon blocks with improved capacity for the removal of contaminants such as THMs (trihalomethanes) and trace VOCs (volatile organic compounds) found in water. In one aspect, a filtration matrix comprises a polymeric binder and an adsorptive media comprising activated carbon having a bulk density of 0.54 (0.57, or even 0.60) g/cc or greater. The carbon BET surface area can be 1100 (950, or even 550) m2/g or less. The polymeric binder can be ultra high molecular weight polyethylene. Also provided are methods of making filtration matrixes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.