Methods of using geotextile composite for filtration of contaminated liquids and sediments
US7981296B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2011 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Jan 17, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Geotextile composite configured to filter liquids and related methods are provided. The geotextile composites include a pre-filter layer, a post-filter layer and at least two intermediate filter layers disposed between the pre-filter layer and the post-filter layer. At least one fibrous web that includes composite fibers and adsorptive particulates is disposed between the at least two intermediate filters. The fibrous web has a structural component, and a thermally-bondable, polymeric component. The geotextile can be placed in a location where a liquid that contains contaminants therein resides. The liquids can pass through the geotextile such that the liquid contacts the adsorptive particulate. The contaminants are then filtered from the liquid through contact of the contaminants with the adsorptive particulate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.