FILTRATION ASSEMBLY INCLUDING MULTIPLE MODULES SHARING COMMON HOLLOW FIBER SUPPORT

• US 20140174998A1
• Filed: 08/01/2012
• Published: 06/26/2014
• Est. Priority Date: 08/23/2011
• Status: Abandoned Application

• Current Assignee: Dow Global Technologies LLC (Dow, Inc.)
• Original Assignee: Dow Global Technologies LLC (Dow, Inc.)
• Inventors: Aerts, Peter E., Burr, Scott T., Gluck, Steven J., Wang, Chengfeng
• Application Number:
  US14/125,189
• Publication Number:
  US 20140174998A1
• Time in Patent Office: Days
• US Class Current: 210/151
• CPC Class Codes: B01D 2313/06 External membrane module supporting or fixing means
• CPC Class Codes: B01D 2313/23 Specific membrane protectors, e.g. sleeves or screens
• CPC Class Codes: B01D 2315/06 Submerged-type; Immersion type
• CPC Class Codes: B01D 2317/04 Elements in parallel
• CPC Class Codes: B01D 2321/185 Aeration
• CPC Class Codes: B01D 63/04 comprising multiple hollow fibre assemblies
• CPC Class Codes: B01D 63/043 with separate tube sheets

Abstract

A filtration assembly comprising a first and second module, each module comprising a plurality of vertically aligned semi-permeable hollow fiber membranes extending along a length between first and second ends with one of said ends potted within a header, and wherein the headers of the modules are aligned and spaced apart to define a vertical flow path; and at least one fiber support positioned along the length of the hollow fiber membranes of both modules, wherein the fiber support comprises a frame including a plurality of partitions that segment the hollow fiber membranes of both modules into common fiber groupings passing through the fiber support.

Claims

1. A filtration assembly comprising:

a first and second filtration module, each comprising a plurality of vertically aligned semi-permeable hollow fiber membranes extending along a length between first and second ends with one of said ends potted within a header, and wherein the headers of the first and second modules are aligned and spaced apart to define a vertical flow path; and

at least one fiber support positioned along the length of the hollow fiber membranes of both modules, wherein the fiber support comprises a frame including a plurality of partitions that segment the hollow fiber membranes of both modules into common fiber groupings passing through the fiber support.

2. The filtration assembly of claim 1 further comprising an aerator in fluid communication with said vertical flow path such that gas bubbles produced by the aerator flow along the vertical flow path between the headers of the first and second modules and along the common fiber groupings.