Method for processing filter backwash fluid for reuse as cleanin

Details Method for processing filter backwash fluid for reuse as cleanin Method for processing filter backwash fluid for reuse as cleanin

1992-09-22

1994-09-13

Drodge, Joseph W.

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

134 10, 134110, 210791, 210800, 210808, B01D 2130

Patent

active

053466292

ABSTRACT:
A method for processing a flush-back fluid containing impurities after its use in a flush-back filter for cleaning fluid used in a cleaning process is accomplished in accordance with the invention in that flush-back fluid drawn from the flush-back filter is subjected to a sedimentation process and hereby acted upon at least from time to time by pressure and that after completion of the sedimentation process the flush-back fluid is separated in a pressure-tight manner from a least at least a portion of a sediment recovered thereby and the latter is subsequently removed and a part of the flush-back fluid cleansed at least to a large extent of impurities is returned to the cleaning process.

REFERENCES:
patent: 2946443 (1960-07-01), Schmidt
patent: 3994702 (1976-11-01), Schweimanns et al.
patent: 4352739 (1982-10-01), Oliver et al.
patent: 4871449 (1989-10-01), Lott
patent: 5223156 (1993-06-01), Maier

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