Title:
DUST PROCESSING METHOD, AND DUST PROCESSING DEVICE
Document Type and Number:
Japanese Patent JP2022159075
Kind Code:
A
Abstract:
To provide a dust processing method that removes mercury from the dust containing an active charcoal and radioactive substance adsorbing the mercury, and can reduce volume of the mercury.SOLUTION: A dust processing method, which melts a radioactive substance-containing object in a melting furnace in the presence of chlorine, performs volume reduction processing of dust recovered by bringing exhaust gas including a volatilized radioactive substance into contact with an assistant and active charcoal adsorption material with a dust recovery device, and removes the radioactive substance included in the dust, includes: an active charcoal separation step of separating an active charcoal included in the dust; a solid-liquid separation step of dissolving the dust in water, and recovering a remaining solid object; and a radioactive substance adsorption step of adsorbing and removing the radioactive substance from an aqueous solution having the dust dissolved in the water.SELECTED DRAWING: Figure 2
Inventors:
NAGAYAMA TAKASHI
MANDOKORO RYOSUKE
KAMIBAYASHI SHIRO
KAMATA YOSUKE
MANDOKORO RYOSUKE
KAMIBAYASHI SHIRO
KAMATA YOSUKE
Application Number:
JP2022049835A
Publication Date:
October 17, 2022
Filing Date:
March 25, 2022
Export Citation:
Assignee:
KUBOTA ENV ENGINEERING CORP
International Classes:
G21F9/12; B01D53/64; B01D53/70; B01D53/83; B03B5/28; B03D1/02; B07B7/08; B09B3/10; B09B3/40; B09B5/00; B09C1/06; C02F1/28; G21F9/02; G21F9/06; G21F9/08; G21F9/10; G21F9/30
Attorney, Agent or Firm:
Kaoru Hashimoto
Shinichi Kawasaki
Shinichi Kawasaki
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