Immersed membrane element and module
US6325928A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2000 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Feb 17, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/185
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filtering element has ultrafiltration or microfiltration hollow fibre membranes extending horizontally between a pair of opposed horizontally spaced, vertically extending headers. Side plates extending between the pair of vertically extending headers define a vertical flow channel through the element. Modules are created by placing the elements side by side or in an orthogonal grid. A frame restrains the elements in place without obstructing the vertical flow channels. Each element may be released from the frame, however, and removed by sliding it in a direction substantially normal to its headers without disassembling the remainder of the module. The elements have associated releasable water tight fittings between the elements and a permeate collector, the releasable water tight fittings being releasable by removing of an element from the frame. An aerator is located below the module with a plurality of air holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.