TREATMENT OF ASH CONTAINING HEAVY METAL

TREATMENT OF ASH CONTAINING HEAVY METAL

PURPOSE:To treat incineration ash discharged after the incineration of solid waste such as city garbage and refuse or industrial waste, and ash containing heavy metals such as exhaust gas-screened dust ash so that these contaminants become harmless. CONSTITUTION:A blend produced by adding water to a...

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Hauptverfasser: KITANO MAKOTO, MIYATA MASAZUMI, KISHIDA MASAKATSU
Format: Patent
Sprache:eng
Schlagworte:
DISPOSAL OF SOLID WASTE
PERFORMING OPERATIONS
RECLAMATION OF CONTAMINED SOIL SOIL
TRANSPORTING
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creator KITANO MAKOTO
MIYATA MASAZUMI
KISHIDA MASAKATSU
description PURPOSE:To treat incineration ash discharged after the incineration of solid waste such as city garbage and refuse or industrial waste, and ash containing heavy metals such as exhaust gas-screened dust ash so that these contaminants become harmless. CONSTITUTION:A blend produced by adding water to ash containing heavy metals is stirred while maintaining the pH value at 7 or less. Further, alkali containing an OH group is added to this blend to set the pH value at 7 to 12 and at the same time, bivalent iron is added to the blend and it is thermally stirred.
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subjects DISPOSAL OF SOLID WASTE
PERFORMING OPERATIONS
RECLAMATION OF CONTAMINED SOIL SOIL
TRANSPORTING
title TREATMENT OF ASH CONTAINING HEAVY METAL
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