Water treatment device and water treatment method
US10941056B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2016 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Mar 27, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/46195
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A water treatment device in which a treatment target water introduction portion is provided in an upper portion of a receptacle, and the water treatment device has a space in which conductive porous members are not disposed between the conductive porous members and the treatment target water introduction portion in the receptacle. When a backwashing fluid is introduced from a lower portion of the receptacle in a desorption, the conductive porous members flow and are agitated owing to the backwashing fluid, because of which a desorption of ions adsorbed to the conductive porous members is promoted. Grains of the agitated conductive porous members collide with other grains of the conductive porous members or with electrodes or a separator, whereby scale and a biofilm appearing on surfaces of the grains of the conductive porous members, the electrodes, or the separator can be removed, and desalination efficiency can be maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.