Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FILTERING DEVICE AND FILTER MEDIUM OUTFLOW SUPPRESSION UNIT
Document Type and Number:
WIPO Patent Application WO/2020/116644
Kind Code:
A1
Abstract:
A filtering device according to an embodiment of the present invention is provided with: a filtering tank; a backwashing unit; and a filter medium outflow suppression mechanism. The filtering tank contains a filter medium, and filtration is carried out upon downward flowing of water to be treated. The backwashing unit carries out backwashing by supplying air and washing water to the bottom part of the filtering tank. The filter medium outflow suppression mechanism is positioned above the filter medium at least in a state where filtration is carried out, and reduces bubbles discharged from the filter medium during backwashing.

More Like This:
JP2004209465WETLAND TYPE WATER PURIFICATION SYSTEM
JP6316156Settling basin
JPH05212216FILTER
Inventors:
HU JINYANG (JP)
MENJU TAKASHI (JP)
IDE TAKESHI (JP)
TAKAHASHI HIDEAKI (JP)
NAKAMURA KENSUKE (JP)
SHIROTA AKIHIKO (JP)
KOJO KAZUTAKA (JP)
MONIWA SHINOBU (JP)
UCHIDA TATSURO (JP)
KON MASAO (JP)
YAMAZAKI ATSUSHI (JP)
FUKAGAWA TAKANORI (JP)
Application Number:
PCT/JP2019/047932
Publication Date:
June 11, 2020
Filing Date:
December 06, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOSHIBA KK (JP)
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORP (JP)
International Classes:
B01D24/46; B01D24/14
Foreign References:
JPS53115465U1978-09-13
JPS5310482U1978-01-28
JPS5013394B11975-05-19
JPH06246108A1994-09-06
JPH0924212A1997-01-28
JPH0679108A1994-03-22
JP2015027646A2015-02-12
JP2007069065A2007-03-22
KR20160041740A2016-04-18
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: CARBURIZER AND CARBURIZATION METHOD USING SAME

Next Patent: LIQUID COMPOSITION, SOLID POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, AND SOLID POLYM...