Water reuse method in cleaning device
US7927494B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2007 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Apr 26, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B40/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
There disclosed a water reuse method in which a surfactant is easily removed from surfactant-including for-treatment water in a cleaning device, whereby water can be reused, and an adsorbent can easily be regenerated only by exposing the adsorbent to an electrolytic solution, and a washing machine including the function. The method includes a surfactant adsorption treatment step of performing a treatment to adsorb and remove a surfactant in surfactant-including for-treatment water such as cleaning water and rinse water used in a washing machine W by hydrotalcite as an anion exchanger or zeolite as a cation exchanger, and a water reuse step of using, in the washing machine W, the for-treatment water treated in the surfactant adsorption treatment step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.