System for measuring the loading of an ion exchange filter

Details System for measuring the loading of an ion exchange filter System for measuring the loading of an ion exchange filter

1987-08-31

1989-03-21

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210 961, 210143, B01J 4900

Patent

active

048140902

ABSTRACT:
A temperature compensated differential between electrical conductivity measurements of a filter medium during passage therethrough of liquid being treated and measurement of the liquid alone after treatment, is utilized to calculate a conductivity ratio based on a reference value reflecting a minimum electrical conductivity measurement under ion saturation conditions in an ion-exchange filter. The filter is switched from an operational mode to a regenerating mode in response to detection of a predetermined conductivity ratio corresponding to approach of the filter to a clogged condition.

REFERENCES:
patent: 2938868 (1960-05-01), Carlson et al.
patent: 4257887 (1981-03-01), Rak et al.
patent: 4299698 (1981-11-01), Rak et al.

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