Title:
Treatment method of mine wastewater or seepage water
Document Type and Number:
Japanese Patent JP6316100
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an effective method for recovering copper, zinc and iron as metals or their compounds from acidic mine waste water.SOLUTION: Provided is a method for treating acidic mine waste water where acidic mine waste water at least comprising copper ions, iron ions and zinc ions is subjected to reduction treatment in the presence of a reducing agent, copper, iron and zinc are precipitated-recovered as metals or their compounds.
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Inventors:
Harazawa Isamu
Takaya Kashiwagi
Takaya Kashiwagi
Application Number:
JP2014112367A
Publication Date:
April 25, 2018
Filing Date:
May 30, 2014
Export Citation:
Assignee:
Harazawa Isamu
Takaya Kashiwagi
Takaya Kashiwagi
International Classes:
C02F1/70; C02F1/62; C22B7/00; C22B15/00; C22B19/20
Domestic Patent References:
| JP2010012444A | ||||
| JP6047385A | ||||
| JP54009161A | ||||
| JP2007237054A | ||||
| JP2004202488A | ||||
| JP9512780A | ||||
| JP56037089A |
Attorney, Agent or Firm:
Naozumi Ono
Sachiko Okunuki
Sayaka Hirakawa
Sachiko Okunuki
Sayaka Hirakawa