Title:
COAL WASTEWATER TREATMENT METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/106574
Kind Code:
A1
Abstract:
This coal wastewater treatment device is provided with: a membrane treatment tank 20 into which wastewater is introduced that is discharged from a device (conveyor) C for handling coal or coal ash and that has a solids concentration of 20-100 g/L; and a porous membrane 22 which is arranged inside of said membrane treatment tank 20 and which filters wastewater. As the porous membrane 22, either a porous membrane is used that has an average pore diameter of less than or equal to 0.4 μm, or a porous membrane is used that has an average pore diameter of less than or equal to one twentieth of the average particle diameter of the pulverized coal in the wastewater.
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Inventors:
TSUDA TAKASHI (JP)
OMORI DAISUKE (JP)
TANAKA AKIHIRO (JP)
NAMIUCHI HIROMI (JP)
ZAITSU SHINTAROU (JP)
OMORI DAISUKE (JP)
TANAKA AKIHIRO (JP)
NAMIUCHI HIROMI (JP)
ZAITSU SHINTAROU (JP)
Application Number:
PCT/JP2020/042123
Publication Date:
June 03, 2021
Filing Date:
November 11, 2020
Export Citation:
Assignee:
IHI TRANSPORT MACHINERY CO LTD (JP)
KYOWAKIDEN IND CO LTD (JP)
KYOWAKIDEN IND CO LTD (JP)
International Classes:
C02F1/44; B01D61/14; B01D65/02
Foreign References:
| JP2019130450A | 2019-08-08 | |||
| JP2011157226A | 2011-08-18 | |||
| JP2009178696A | 2009-08-13 | |||
| JPH07299491A | 1995-11-14 |
Attorney, Agent or Firm:
PATENT FIRM YAMADA PATENT OFFICE (JP)
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