Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1996-03-11
1998-09-01
Rosenbaum, Mark
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
241 23, 241 65, 241 33, 241606, B02C 1912
Patent
active
057998833
ABSTRACT:
Containerized medical waste is treated by a process in which the materials are carried by a conveyor under a negative pressure to a multiple-stage shredder. Sodium hypochlorite is added at several points in the shredder section of the apparatus. The output of the shredder is compressed and the liquid component which is separated out is recirculated. The compressed solid is conveyed through a conveyor in which the temperature is maintained at a level just under 212.degree. F. by the introduction of steam. The pressure is maintained at or below atmospheric pressure at all points in the system to prevent release of contaminated materials into the atmosphere. By using the combination of sodium hypochlorite and steam, it is possible to eliminate live microorganisms entirely while still taking advantage of low pressure to avoid accidental release of contaminated materials. Heating by steam takes place in a conveyor which is controlled by temperature sensors so that it moves only when its temperature reaches a predetermined level, e.g. 205.degree. F. The intake conveyor is also controlled so that it does not feed waste into the treatment apparatus unless the temperature in the steam conveyor is at least at a predetermined minimum level.
REFERENCES:
patent: 2708074 (1955-12-01), Hoskins
patent: 2731208 (1956-01-01), Dodd
patent: 4578185 (1986-03-01), Wilson et al.
patent: 4670227 (1987-06-01), Smith
patent: 4884756 (1989-12-01), Pearson
patent: 5048766 (1991-09-01), Gaylor et al.
patent: 5087420 (1992-02-01), Jackson
patent: 5089228 (1992-02-01), Meijer
patent: 5277136 (1994-01-01), Davis
patent: 5346142 (1994-09-01), Miller et al.
patent: 5360594 (1994-11-01), Meijer
patent: 5362443 (1994-11-01), Tanaka et al.
patent: 5364589 (1994-11-01), Buehler et al.
patent: 5384092 (1995-01-01), Sawhill et al.
patent: 5389347 (1995-02-01), Hall
patent: 5470022 (1995-11-01), Wright et al.
patent: 5566890 (1996-10-01), Ricciardeui
Description Sheet Vincent Horizontal Press, date unknown.
"Steam Sterilization for Infectious Waste Management", GTH Roland North America, Inc., date unknown.
"Infectious Waste Processor Model TWP-1000", Mediclean Technology, Inc. date unknown.
"San-I-Pak", San-I-Pak Incorporated, date unknown.
ABB Sanitec "Microlock", date unknown.
Jones William
Lewis Robert W.
McKee Randall G.
Rosenbaum Mark
Sterile Technology Industries, Inc.
LandOfFree
Waste treatment apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Waste treatment apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Waste treatment apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-261105