Hydraulic and earth engineering – Subterranean waste disposal – containment – or treatment – With treatment of waste
Patent
1995-03-17
1998-02-10
Suchfield, George A.
Hydraulic and earth engineering
Subterranean waste disposal, containment, or treatment
With treatment of waste
52DIG9, 405128, B09B 100
Patent
active
057161658
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND
The present invention pertains to a process, and an installation that works in accordance with the process, for the disposal of garbage, specifically, of garbage that is stored in dumps and landfills.
In the following, the term garbage is understood to mean: Household garbage, industrial wastes, construction rubbish and special garbage of all types. Such garbage is, to be sure, burned in many areas, but the majority of the garbage that occurs on a daily basis is at least stored for a long intermediate period in dumps or landfills. In many locations there exist in addition abandoned dumps, some of which have highly toxic industrial waste, and which represent an imminent hazard to the environment because the stored materials make their way into the ground water and/or the air either directly or by means of products that arise as a result of the chemical reactions that are taking place in the dumps.
While the problem of disposal of the garbage that is continuously coming into being may be considered to be solved as such--although even here continuously improved processes are being developed--the disposal of garbage dumps and landfills is associated with large problems as soon as such dumps are cut into. In particular, dust, gases, sludge, and aerosols are released which represent a hazard to the environment, or at the very least, a nuisance.
It is the task of the invention to create a process, and an installation that works in accordance with the process, which avoids the above-mentioned environmental hazards and nuisances.
SUMMARY
In one embodiment, the invention comprises an apparatus for the disposal of garbage that is stored in sanitary landfills, having gases and liquids present therein, with a recycling installation comprising: a stripping area located in the sanitary landfill; an apron area located in the recycling installation; a stripping area enclosure including: a stripping area roof and stripping area walls positioned to cover the stripping area, said stripping area roof and said stripping area walls comprise substantially airtight materials which are connected in a substantially airtight manner to themselves and to the ground outside the stripping area; and movable supports for supporting the stripping area roof and the stripping area walls; an apron area enclosure including: an apron area roof and apron area walls positioned to cover the apron area, said apron area roof and apron area walls comprise substantially airtight materials which are connected in a substantially airtight manner to themselves and to the ground outside the apron area; and fixed supports for supporting the apron area roof the apron area walls, and the airtight materials covering the apron area; mechanical means for the stripping of garbage from the sanitary landfill; mechanical means for transporting the stripped garbage from the stripping area to the apron area; a first suction device for the creation of a negative pressure in the apron area enclosure and the stripping area enclosure in a range from ten to one hundred pascal in the stripping area enclosure and the apron area enclosure, the negative pressure is with respect to the areas outside the stripping area enclosure and the apron area enclosure; drainage lances positioned into the stripping area of the sanitary landfill, said drainage lances are tubular in shape and include holes in the sides of the drainage lances for drawing off the gases and liquids which are present in the sanitary landfill, the drainage lances are connected into a manifold and the gases and liquids are emptied into a common scavenging pipe; a driving means operatively connected to each drainage lance to provide an axial rotating movement to each drainage lance; a second suction device operatively connected to the drainage lances to create a negative pressure in the interior of the drainage lances for drawing-off the gases and liquids that are present in the sanitary landfill; and means for feeding the gases and liquids from both the first and second suction devices into the recycl
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Suchfield George A.
Unitechnic Anstalt
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