Treating liquids with pH adjuster-based system
US7442310B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2006 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | May 25, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention features a system for treating liquid including a liquid treatment device comprising adsorbent media for removing a substance from liquid and a pH adjuster device located upstream of the liquid treatment device relative to a direction of flow of the liquid. The pH adjuster device contains particulate or solid state pH adjuster material capable of releasing H or OH groups into the liquid or consuming H or OH groups from the liquid effective to raise or lower the pH of the liquid while it passes through the media. The pH adjuster may include acidifier or basifier material. Also featured is a method of using the device to remove a substance from liquid by adsorption and/or ion exchange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.