Method for removing contaminants from industrial cleaning system

Details Method for removing contaminants from industrial cleaning system Method for removing contaminants from industrial cleaning system

1994-02-23

1995-06-06

Dawson, Robert A.

Liquid purification or separation

Processes

Separating

210194, 210200, 210202, 210207, 210295, 2105121, 210513, 210760, 210772, 210800, 210804, 210805, 210806, 134 10, 134109, B01D 2126, B01D 2400

Patent

active

054220190

ABSTRACT:
Water-based industrial cleaning solutions are stripped of mixed oil and high density particulate (dirt) contamination by a full or partial flow system through, first, a centrifugal separator to produce two effluent flow streams respective to low and high density contamination. Each centrifugal separator effluent stream is conducted to and through respective gravimetric separators producing three effluent streams each. The two purified cleaning solution streams are combined for recycling. The two oil effluent streams are combined for disposal. The two particulate dominated streams are combined for screen or matrix filtration.
A small side stream such as effluent from the screen or filter is treated with ozone for bacterial control prior to recombination.

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patent: 4622151 (1986-11-01), Hiltebrand et al.
patent: 5090498 (1992-02-01), Hamill
patent: 5298167 (1994-03-01), Arnold

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