Hydraulic and earth engineering – Subterranean waste disposal – containment – or treatment – With treatment of waste
Patent
1995-05-26
1996-10-15
Suchfield, George A.
Hydraulic and earth engineering
Subterranean waste disposal, containment, or treatment
With treatment of waste
405128, 405130, 210747, 210901, B09B 100
Patent
active
055648622
ABSTRACT:
The present invention includes a method of landfill mining which comprises the following steps: (1) converting the landfill to aerobic production by injection of moisture and air, and a raw material such as sewage sludge (if required), and venting of depleted air and moisture, thereby increasing the rate of waste decomposition; (2) excavating the landfill to remove material; (3) separating the removed material to substantially isolate at least one segregated material from the residual material; (4) disposing of at least one segregated material; and (5) returning the residual material to the landfill. The segregated materials preferably include decomposed waste and recyclables, and may also include toxic material and hazardous waste. The rate of aerobic production may be controlled as follows: if the temperature in the landfill becomes too high, then additional air and additional water may be injected to cool the landfill; and if the temperature in the landfill becomes too low, then additional raw material such as sewage sludge may be injected to increase the reaction rate.
REFERENCES:
patent: 3586624 (1971-06-01), Larson
patent: 4323367 (1982-04-01), Ghosh
patent: 4838733 (1989-06-01), Katz
patent: 5265979 (1993-11-01), Hansen
patent: 5356452 (1994-10-01), Fahey
patent: 5362181 (1994-11-01), DenBesten
patent: 5375944 (1994-12-01), Kotani et al.
patent: 5429454 (1995-07-01), Davis et al.
LandOfFree
Method of improved landfill mining 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 improved landfill mining, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of improved landfill mining will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1241603