Multistage immersion type membrane separator and high-concentration wastewater treatment facility using same
US6843908B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2001 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Apr 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A multistage immersion type membrane separator in which an air diffuser is disposed under a filtration part immersed in a treatment tank, characterized in that: the filtration part has plural plate-like membrane cartridges arranged in a vertically parallel multistage fashion at spaced intervals for forming a crossflow passage of a predetermined width; and that the air diffuser has a diffuser tube disposed sidewardly that is communicated at its basal end to an air supply source and has at its lower side part plural blowholes, a flushing pipe that is communicated at its basal end to the tip of the diffuser tube and has at its tip an opening serving as an outlet above the diffuser tube, and a flushing valve disposed in the flushing pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.