Title:
【発明の名称】対数減少値の推定
Document Type and Number:
Japanese Patent JP2002500554
Kind Code:
A
Abstract:
A method of predicting logarithmic reduction values for a membrane filtration system having a filtrate flow portion and a bypass flow portion relative to a filtrate permeable membrane with stable input gas flow comprising: determining the filtrate flow rate through the membrane under the action of an applied test pressure, determining the membrane bypass flow rate using integrity test measurements and estimating the logarithmic reduction value using the ratio of determined filtrate flow rate and determined bypass flow rate. Methods of testing the integrity of a porous membrane are also disclosed.
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Inventors:
Selby, Michael, Robert, Lloyd
Drummond, Humphrey, John, Jardine
Johnson, Warren, Thomas
Drummond, Humphrey, John, Jardine
Johnson, Warren, Thomas
Application Number:
JP50000999A
Publication Date:
January 08, 2002
Filing Date:
May 26, 1998
Export Citation:
Assignee:
USF Filtration and Separations Group Inc.
International Classes:
B01D46/44; B01D65/02; B01D65/10; G01N15/08; (IPC1-7): B01D65/10; G01N15/08
Attorney, Agent or Firm:
Asato Kato (2 outside)