Continuous sand filter
US5746913A · kind A · utility
18Cited by
10References
1Claims
0Family size
Inventors
Key dates
| Filing date | Feb 6, 1997 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Feb 6, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D24/4689
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A continuous sand filter has a tank provided therein with a first separation container and a second separation container. The continuous filtration of the waste water is carried out in the first separation container and the second separation container. The first separation container is provided with an arresting piece capable of enhancing the filtration effect. The light and the heavy impurities are treated separately in the first separation container. The further filtration process is carried out continuously in the second separation container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.