Filter cleaning

Details Filter cleaning Filter cleaning

1995-05-22

1996-08-13

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic material treatment

Metal or metal alloy

205741, 204282, C25F 100

Patent

active

055453112

ABSTRACT:
An electrically conducting filter medium (20) is cleaned in situ by applying, at intervals, a brief voltage pulse between the medium (20) and a counter electrode (18) so the process liquid undergoes electrolysis. The cleaning process is significantly improved by occasionally applying a voltage of reverse polarity. For example a 5 second cleaning pulse making the filter medium (20) cathodic might be applied every quarter of an hour, and a reverse polarity pulse of similar duration applied every two hours. This process can significantly increase permeation rates.

REFERENCES:
patent: 4493756 (1985-01-01), Degen et al.
patent: 4624760 (1986-11-01), Pottinger et al.
patent: 5064515 (1991-11-01), Harapanahalli
patent: 5137607 (1992-08-01), Anderson et al.
patent: 5162077 (1992-11-01), Bryan

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