Method of freeze drying sewage sludge

Details Method of freeze drying sewage sludge Method of freeze drying sewage sludge

1995-10-13

1997-03-25

Popovics, Robert J.

Liquid purification or separation

Processes

Separating

210774, 210808, 34292, 241 20, 239 22, 159 473, 159905, 159DIG5, 159DIG16, 203DIG5, C02F 122, C02F 112

Patent

active

056141076

ABSTRACT:
A method for processing sewage eliminates chemical "treatment", or, the addition of chemicals that are as harmful or more so to the environment as raw sewage. The method of processing sewage disintegrates the generally solid components of sewage into a highly de-moisturized powder via alternative processes of either (i) a freeze-drying process, or (ii) a combination centrifugal separation and an evacuated "bake-out" process, both which substantially drive out the vaporizable components of the sewage. In consequence, there are no resultant effluent and/or exhausting vapors from this method which would impact the environment.

REFERENCES:
patent: 3677405 (1972-07-01), Keith, Jr.
patent: 3714792 (1973-02-01), Murphy et al.
patent: 3745782 (1973-07-01), Neyhart et al.
patent: 3817048 (1974-06-01), Burley
patent: 3880756 (1975-04-01), Raineri et al.
patent: 4787970 (1988-11-01), Sutphen
patent: 5202034 (1993-04-01), Martel, Jr.
patent: 5250192 (1993-10-01), Martel, Jr.
"Popular Science" Magazine, Dec. 1995, p. 42, an article entitled Pure as Snow.

Affiliated with

Also associated with

Rating

Method of freeze drying sewage sludge 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 freeze drying sewage sludge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of freeze drying sewage sludge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2200685