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Filtration monitoring and control system

  • US 6,077,435 A
  • Filed: 01/12/1998
  • Issued: 06/20/2000
  • Est. Priority Date: 03/15/1996
  • Status: Expired due to Term
First Claim
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1. A method of determining the fouling effect of a feedstream on a filter having known characteristics, said method comprising the steps of:

  • i) passing the feedstream through a filter having known characteristics;

    ii) determining the change in resistance to flow of the feedstream across the filter, either continuously or over a number of time intervals; and

    iii) using the information determined from step ii), calculating a feed fouling index (FFI) representative of fouling characteristics of the feedstream with respect to the filter, where ##EQU6## with FFI=Feed Fouling Index, Δ

    R=change in resistance, V=volume of feedstream filtered and, Δ

    (V/A)=change in the ratio of volume of feedstream filtered to filter area.

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