Method of treating incineration ashes with sulfate reducing bacteria
OwnerKweon Junginventor
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Abstract
A method of treating incineration ash and wastewater sludge, wherein a mutual relation in using nutrients exists between the incineration ash containing heavy metal and organic wastes containing the wastewater sludge and sulfate-reducing bacteria, including the steps of burying the incineration ash together with the organic wastes under the ground, whereby the bacteria reduces the sulfates existing in the incineration ash to form sulfides, binding the formed sulfides with the heavy metal to form insoluble metal sulfides, thereby preventing the heavy metal from exuding out of the incineration ash as and eluate.
Claims8
A method of treating incineration ash and wastewater sludge, wherein a mutual relation in using nutrients exists between the incineration ash containing heavy metal and organic wastes containing the wastewater sludge and sulfate-reducing bacteria, comprising the steps of:
- burying the incineration ash together with the organic wastes under the ground, whereby the bacteria reduces the sulfates existing in the incineration ash to form sulfides;
- binding the formed sulfides with the heavy metal to form insoluble metal sulfides, thereby preventing the heavy metal from exuding out of the incineration ash as an eluate.
A method for the treatment of incineration ash and wastewater sludge, comprising:
- burying the incineration ash containing heavy metal together with organic wastes containing sulfate-reducing bacteria under the ground as an accumulation, and covering them with a depth of soil so that said sulfate-reducing bacteria promote the heavy metal to precipitate in the form of dissoluble metal sulfides, whereby the heavy metal is prevented from exuding out of the incineration ash as an eluate.
A method for the treatment of incineration ash and wastewater sludge, comprising the steps of:
- collecting and mixing aqueous eluate exuded from the incineration ash and aqueous eluate exuded from organic waste containing sulfate-reducing bacteria, in a disposal plant;
- and
- reacting both of the aqueous elutes so that the sulfate-reducing bacteria existing in the aqueous eluate exuded from organic waste containing sulfate-reducing bacterial, in a disposal plant;
- and
- reacting both of the aqueous elutes so that the sulfate-reducing bacteria existing in the aqueous eluate exuded from the organic waste deposits heavy metals from the aqueous eluate exuded from the incineration ash as insoluble metal sulfides, which results in the disposal of the aqueous eluate exuded from the incineration ash and the aqueous eluate exuded from the organic waste.
Dependencies are inferred from the claim text.