Chemistry: molecular biology and microbiology – Process of utilizing an enzyme or micro-organism to destroy...
Reexamination Certificate
1999-06-21
2001-11-13
Beisner, William H. (Department: 1744)
Chemistry: molecular biology and microbiology
Process of utilizing an enzyme or micro-organism to destroy...
C435S267000, C435S290400, C071S008000
Reexamination Certificate
active
06316246
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a method for treating organic waste matter. The method is effective in reducing the organic waste matter in a shorter period of time and thus contributes to the so-called pollution control.
BACKGROUND OF THE INVENTION
Organic waste matter such as sludge, garbage and residues is one of today's major problems. It causes marine pollution, groundwater pollution, and eutrophication in rivers and lakes, as well as contamination of air and soil by environmental hormones such as dioxin, etc.
Significantly large plant and equipment investment is required to incinerate, melt or bury the sludge of sewage water which contains a large amount of hazardous heavy metals such as mercury and cadmium.
Currently used sludge treatment systems include, for example, the dehydration-drying-incineration system, the dehydration-drying-melting system or the dehydration-fermentation system. However, all of these systems leave residues such as incinerated ash, melted residues and/or residues containing hazardous heavy metals. Accordingly, a method for treating these final products has been required.
In order to solve this problem, the present inventor developed a method for fermenting organic waste by fermenting the organic waste and adding vegetal sludge thereto. See Japanese Patent Publication (Kokoku) No. 8-744.
Yet, there has been a demand for a method for treating organic waste matter which renders post-treatment unnecessary by reducing the amount of treatment residues.
SUMMARY OF THE INVENTION
The object of the invention is to provide a method for treating organic waste matter which does not require post-treatment of treatment residues.
The present inventor has now found an effective method for treating organic waste matter to solve the above-mentioned problems.
In one of the present invention, a method for treating organic waste matter in a fermentation container having a shoveling conveyor includes the steps of a) depositing or showering organic waste matter into an entry port of the fermentation container which contains at least one of crushed wooden materials and natural fibers, and incinerated ash thereof; b) transporting the organic waste matter toward an exit port of the fermentation container by the shoveling conveyor; c) unloading the treated matter from the container at the exit port; and d) redepositing the treated matter into the container at the entry port together with untreated organic waste matter.
According to one embodiment of the present invention, when the organic waste matter is in a liquid form, it is showered in the vicinity of the center of the fermentation container.
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Beisner William H.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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