Hazardous or toxic waste destruction or containment – Containment – Solidification – vitrification – or cementation
Patent
1997-06-06
1999-03-02
Valentine, Donald R.
Hazardous or toxic waste destruction or containment
Containment
Solidification, vitrification, or cementation
204704, 204252, 204225, A62D 300, C25B 900, C25D 1700
Patent
active
058773886
ABSTRACT:
An insulating shield plate (1) divides a room of an electrolysis bath (2) into an anode chamber (13) and a cathode chamber (14). An anode (5) is disposed in the anode chamber (13), and a cathode (6), metallic waste (7) and heater (4) are disposed in the cathode chamber (14). An electrolyte (3) stored in the electrolysis bath (2) flows in a circulation path from a circulating pump (10) through a circulating line (12) and filter (11) to return the electrolysis bath (2). An exhaust gas processing device 9 is connected to the electrolysis bath (2). When a voltage is supplied to the anode (5) and cathode (6), a surface of the metallic waste (7) is charged in a positive polar to dissolve a base metal of the metallic waste (7). Further, a cylindrical anode (33) is arranged in an electrolyte (32) in an electrolysis bath (31), and a cylindrical metal (34) as a metallic waste is arranged in the cylindrical anode (33). After a bar-shape cathode (35) is arranged in the cylindrical metal (34), a DC voltage is supplied to the cylindrical anode (33) and the bar-shape cathode (35). At this time, the system may be constructed in that oxygen occurs by charging in a positive polarity an inner surface of the cylindrical metal (34) and the base metal of the cylindrical shape is dissolved.
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patent: 4828759 (1989-05-01), Hanulik
Patent Abstracts of Japan, vol. 017, No. 512 (P-1613), Sep. 14, 1993.
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Database WPI, Section Ch. Week 9350; Derwent Publications Ltd. (No Date).
Enda Masami
Heki Hideaki
Hosaka Katsumi
Sakai Hitoshi
Kabushiki Kaisha Toshiba
Valentine Donald R.
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