Method of simultaneous air-water wash of multiple-media filters

Details Method of simultaneous air-water wash of multiple-media filters Method of simultaneous air-water wash of multiple-media filters

1980-08-18

1982-03-30

Cintins, Ivars C.

Liquid purification or separation

Processes

Separating

210290, B01D 2324

Patent

active

043222994

ABSTRACT:
A method is described in which two or more granular filter media are used in combination in such a manner that the filter bed is backwashed using air and water simultaneously. The media size gradation and density are selected so that, although the media may be mixed during backwash, the media are separated into layers according to their density and/or size following termination of the simultaneous air-water wash and prior to returning the filter to the filtration mode. The simultaneous air-water wash step can be carried out without media loss by use of an appropriate media retaining procedure.

REFERENCES:
patent: 293745 (1884-02-01), Hyatt
patent: 3343680 (1967-09-01), Rice et al.
patent: 3698554 (1972-10-01), Mail
patent: 4076625 (1978-02-01), Scholten et al.

Affiliated with

Also associated with

Rating

Method of simultaneous air-water wash of multiple-media filters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of simultaneous air-water wash of multiple-media filters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of simultaneous air-water wash of multiple-media filters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-381465