Electrodialysis process and bipolar membrane electrodialysis devices for silica removal
US11577202B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2020 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Jun 8, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/124
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Provided are electrodialysis systems for removing silica from a desalinated water stream and methods for removing silica from a desalinated water stream. For example, described are bipolar membrane electrodialysis devices for removing silica from water comprising one or more anion exchange membranes; one or more bipolar membranes; and a pair of electrodes comprising a positive electrode and a negative electrode. Also described are electrodialysis systems comprising: one or more electrodialysis devices for the removal of dissolved ions and one or more bipolar membrane electrodialysis devices, wherein a product inlet stream of the one or more bipolar membrane electrodialysis devices comprises the product outlet stream of the one or more electrodialysis devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.