Title:
METHOD FOR TREATMENT WASTE
Document Type and Number:
Japanese Patent JP3794260
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a treatment method which is capable of rapidly and efficiently filtering out zinc in liquid.
SOLUTION: The method is to subject wastes to the separation of solid from liquid by acid leaching and recovering the zinc from the filtrate, in which a sulfuration source is introduced into the acid leaching filtrate to convert the zinc in the liquid to zinc sulfate and to settle the same and further this filtrate is regulated to alkalinity to convert the remaining zinc in the liquid to zinc hydroxide, and to settle the same.
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Inventors:
Tsutomu Suzuki
Takeshi Ogami
Masaya Ida
Keiichi Miura
Takeshi Ogami
Masaya Ida
Keiichi Miura
Application Number:
JP2000330655A
Publication Date:
July 05, 2006
Filing Date:
October 30, 2000
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
B09B5/00; B09B3/00; C22B3/44; C22B7/02; C22B13/00; C22B15/00; C22B19/00; C22B19/20; (IPC1-7): B09B3/00; B09B5/00; C22B3/44; C22B7/02; C22B13/00; C22B15/00; C22B19/00
Domestic Patent References:
| JP10109077A | ||||
| JP47033989A | ||||
| JP52022359A |
Attorney, Agent or Firm:
Hiroshi Chiba
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