Title:
METHOD FOR METAL CONCENTRATION, METHOD FOR METAL RECOVERY, DEVICE FOR METAL CONCENTRATION, AND DEVICE FOR METAL RECOVERY
Document Type and Number:
WIPO Patent Application WO/2014/112637
Kind Code:
A1
Abstract:
The purpose of the present invention is to make it possible to easily concentrate a metal of a metal-ion-containing solution at a high efficiency and recover the metal from the metal-ion-containing solution at a high recovery efficiency. This method for metal concentration or metal recovery comprises: a reduction collection step in which a microorganism and an electron donor (B) are caused to act on a metal-ion-containing solution (W0) to reduce the metal ions to thereby convert the ions into fine metal particles and cause the microorganism to collect the fine metal particles therein, thereby obtaining a solution (W1) that contains the microorganism having the fine metal particles collected therein; a concentration step in which the solution (W1) is concentrated with a filtration membrane to obtain a concentrate (W2); and a returning step in which the concentrate (W2) is returned to the step (1) and circulated. This device for metal concentration or metal recovery comprises a reservoir part (2) in which the solution (W1) is reserved, a concentration part (3) in which the solution (W1) sent from the reservoir part (2) is concentrated with a filtration membrane, and a returning part (4) whereby the concentrate (W2) obtained by concentration in the concentration part (3) is returned to the reservoir part (2).
Inventors:
KONISHI YASUHIRO (JP)
SAITOH NORIZOH (JP)
ANBO TAKANORI (JP)
TERAZAWA KAORU (JP)
RYUNO KOICHIRO (JP)
NINOMIYA YASUHIRO (JP)
SAITOH NORIZOH (JP)
ANBO TAKANORI (JP)
TERAZAWA KAORU (JP)
RYUNO KOICHIRO (JP)
NINOMIYA YASUHIRO (JP)
Application Number:
PCT/JP2014/051071
Publication Date:
July 24, 2014
Filing Date:
January 21, 2014
Export Citation:
Assignee:
MITSUBISHI RAYON CO (JP)
UNIV OSAKA PREFECT PUBLIC CORP (JP)
UNIV OSAKA PREFECT PUBLIC CORP (JP)
International Classes:
C22B3/18; C12N1/00; C12N1/20; C12P3/00; C22B11/00; C22B58/00; C12R1/01
Domestic Patent References:
WO2012060417A1 | 2012-05-10 |
Foreign References:
JP2011190515A | 2011-09-29 | |||
JP2005194597A | 2005-07-21 | |||
JP2011026701A | 2011-02-10 | |||
JP2007113116A | 2007-05-10 | |||
JP2010162442A | 2010-07-29 | |||
JP2005238181A | 2005-09-08 | |||
JP2005298276A | 2005-10-27 |
Other References:
See also references of EP 2947163A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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