Methods of minimising the effect of integrity loss in hollow fibre membrane modules

• US 7,344,645 B2
• Filed: 07/31/2006
• Issued: 03/18/2008
• Est. Priority Date: 06/18/2002
• Status: Expired due to Fees

• Current Assignee: Evoqua Water Technologies LLC (Xylem, Inc.)
• Original Assignee: Siemens Water Technologies Corp (Siemens AG)
• Inventors: Johnson, Warren Thomas, Beck, Thomas William
• Primary Examiner(s): FORTUNA, ANA M
• Application Number:
  US11/496,378
• Publication Number:
  US 20060266706A1
• Time in Patent Office: 596 Days
• Field of Search: 210/500.23, 210/321.79, 210/321.78, 210/321.8, 210/321.81, 210/321.87, 210/321.88, 210/321.89, 210/321.9, 210/650, 96/4, 96/10, 156/295, 264/41
• US Class Current: 210/650
• CPC Class Codes: B01D 63/02 Hollow fibre modules
• CPC Class Codes: B01D 63/021 Manufacturing thereof
• CPC Class Codes: B01D 65/104 Detection of leaks in membrane apparatus or modules
• CPC Class Codes: B01D 69/08 Hollow fibre membranes manufacture of hollow fibres D01D5/24, D01F1/08

Abstract

A method and apparatus for reducing the effect of integrity loss in a hollow fiber membrane module, said module including a plurality of hollow fiber membranes (5), at least one end of the fiber membranes (5) being supported in a pot (6), the method including the step of increasing flow resistance of the liquid through the lumen (8) of the fiber membrane (5) in the region of the pot (6).

Claims

1. A method of reducing an effect of an integrity loss in a hollow fibre membrane module, the module comprising a plurality of hollow fibre membranes, each hollow fibre membrane comprising a lumen, wherein at least one end of each of the hollow fibre membranes is supported in a pot forming at least one potted segment of the lumen and a remaining segment of the lumen, the method comprising:

increasing a flow resistance of a liquid through the at least one potted segment of the lumen, whereby an effect of an integrity loss is reduced,

wherein increasing the flow resistance through the at least one potted segment of the lumen comprises plugging an end of the lumen with a porous material in a region of the pot.