Liquid purification or separation – Processes – Treatment by living organism
Patent
1995-06-07
1997-01-14
McCarthy, Neil
Liquid purification or separation
Processes
Treatment by living organism
210631, 210710, 210734, 210737, 210759, 210916, 210774, C02F 154
Patent
active
055935915
ABSTRACT:
Dry, free flowing solids, suitable for handling, transportation and/or disposal are produced from messy biologically treated sludges. In the process, the sludge feed is pressurized and heated, then flashed, in order to vaporize a portion of the water; the residual liquid, containing the solids and sometimes heavy metals, is contacted with a chelating agent, if needed, and a flocculating agent over a brief reaction period in order to precipitate a concentrated solid precipitate; and the precipitate is separated from the residual liquid water.
REFERENCES:
patent: 3804755 (1974-04-01), Cervantes
patent: 4261836 (1981-04-01), Koglin
patent: 4479879 (1984-10-01), Hashimoto et al.
patent: 4541986 (1985-09-01), Schwab et al.
patent: 4673510 (1987-06-01), Janusch et al.
patent: 4913585 (1990-04-01), Thompson et al.
patent: 4938876 (1990-07-01), Ohsol
patent: 4956092 (1990-09-01), Blum
patent: 4988442 (1991-01-01), Highsmith et al.
patent: 5188740 (1993-02-01), Khan
patent: 5188741 (1993-02-01), Zang et al.
patent: 5200085 (1993-04-01), Rudolf et al.
patent: 5354458 (1994-10-01), Wang et al.
Callery Thomas G.
Ohsol Ernest O.
Green Theodore M.
McCarthy Neil
UniPure Corporation
LandOfFree
Production of dry, free flowing solids from bio-waste 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 Production of dry, free flowing solids from bio-waste sludge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of dry, free flowing solids from bio-waste sludge will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1385622