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Title:
METHOD OF TREATING WASTE CONTAINING HEAVY METAL SALTS AND MAKING THEM INSOLUBLE
Document Type and Number:
Japanese Patent JPS5242470
Kind Code:
A
Abstract:

PURPOSE: In a treatment of waste containing heavy metal salts of Cr, As, etc. to make completely insoluble, the heavy metal salts are chemically converted to insoluble substnaces by adding water,Al2(SO4)3 and inorganic reducing agent and further made insoluble by sealing with S as a secondary step.


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Inventors:
NISHIMOTO KOREHIKO
MIZUMOTO YOSHIAKI
FUJITA HIROSHI
MITSUOKA KOUMEI
HASEGAWA SHIGEO
Application Number:
JP11848575A
Publication Date:
April 02, 1977
Filing Date:
October 01, 1975
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
A62D3/32; A62D3/33; C02F11/00; A62D3/37; B09B3/00; A62D101/43; (IPC1-7): B01J1/00; C02C3/00



 
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