Title:
PROCESS FOR RENDERING HEXAVALENT CHROMIUM CONTAINING WASTE WATER HARMLESS AND SOLIDIFYING THE SAME
Document Type and Number:
Japanese Patent JPS5348350
Kind Code:
A
Abstract:
PURPOSE: To provide a process for rendering hexavalent chromium containing waste water harmless and solidifying the same, which comprises subjecting hexavalent chromium containing waste water adjusted to a pH value of less than 3 to a contact treatment with a carbonaceous material, and burning the thus obtained sludge thereby to obtain a solid of which no hexavalent chromium melts out.
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Inventors:
SHIMOKAWABE IKUO
OOTANI KOUJI
KOMORI SHINJI
OOTANI KOUJI
KOMORI SHINJI
Application Number:
JP12282976A
Publication Date:
May 01, 1978
Filing Date:
October 15, 1976
Export Citation:
Assignee:
HITACHI LTD
International Classes:
C25D21/18; C02F1/70; F23G7/00; (IPC1-7): C02C3/00; C02C5/02