Chemistry: molecular biology and microbiology – Apparatus – Bioreactor
Patent
1999-06-21
2000-08-29
Redding, David A.
Chemistry: molecular biology and microbiology
Apparatus
Bioreactor
4352901, C12M 102
Patent
active
061107328
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a garbage disposal apparatus for disposing of garbage by action of microorganisms, and more particularly, to a garbage disposal apparatus designed so as to completely decompose garbage by action of microorganisms.
2. Description of the Background Art
Garbage has conventionally been disposed of through incineration and land reclamation, but the disposal methods have limitations. A surge in the generation of garbage associated with population growth and ever-increasing consumption makes garbage problems more serious. This tendency has become a global phenomenon, and hence solution of the garbage problem assumes great social significance.
Many inventions have already been made to solve the garbage problem, and the majority of the inventions are directed toward composting of garbage through utilization of microorganisms. However, composts are useless for those who have no way to use the composts, such as inhabitants in urban areas. Further, even when there are people who need composts, if garbage is generated in amounts greater than in normal times, disposal of garbage cannot keep up with generation of the same. Thus, since garbage cannot be disposed of when desired, the foregoing inventions cannot completely solve the garbage problem over the long run.
In the light of such a problem, the present inventor has conceived an invention related to a garbage disposal apparatus which completely decomposes garbage into carbon dioxide and water through action of microorganisms (Japanese Patent Application Laid-open Nos. 7-68240 and 8-108166). In this apparatus, primarily, carriers carrying aerobic microorganisms and garbage are mixed within a garbage processing drum through agitation under aerobic conditions. Water supply to and temperature control of the drum are carried out, as necessary, thereby completely decomposing the garbage fed into the drum into water and carbon dioxide. This garbage disposal apparatus enables complete decomposition of garbage by only periodic replenishment of microorganism-carrying carriers and intermittent agitation. For this reason, this invention can address generation of garbage, which increases year by year. Further, garbage is completely decomposed into carbon dioxide and water, and hence the water can be flushed down an ordinary drain. The present invention has an advantage of eliminating necessity for a special facility other than the disposal apparatus itself. Therefore, the garbage disposal apparatus can be installed at limited sites such as urban areas.
SUMMARY OF THE INVENTION
The object of the present invention is to improve disposal efficiency and usefulness of an existing garbage disposal apparatus which completely decomposes garbage into carbon dioxide and water through action of microorganisms, by making improvements to the garbage disposal apparatus.
As a result of considerable studies conducted for the purpose of accomplishing the foregoing object, the present inventor found that water and a certain amount of air are supplied to microorganisms by addition of water to a lower portion of a garbage processing drum in which microorganisms are active, from beneath as well as from above, thereby accelerating decomposition of garbage by microorganisms. Thus, the inventor has completed the present invention.
The present invention provides a garbage disposal apparatus including a storage drum for storing garbage and having a meshed bottom, and an agitation and mixing mechanism disposed within the storage drum, the agitation and mixing mechanism stirring and mixing together garbage and microorganism-carrying carriers, and the garbage being fermented and completely decomposed, wherein a water-spraying mechanism is disposed beneath the meshed bottom of the storage drum and sprays water onto the meshed bottom from outside of the storage drum.
The present invention provides the garbage disposal apparatus, wherein the agitation and mixing mechanism comprises a rotary shaft disposed in parallel with
REFERENCES:
patent: 4676380 (1987-06-01), Dahlby
Endo Hiroyasu
Endo Iwao
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