Title:
FILTERING METHOD
Document Type and Number:
Japanese Patent JPS5292167
Kind Code:
A
Abstract:
PURPOSE: An economical filtering method wherein water to be treated is made to go upward in a filtering tower, and contaminated materials are filtered through filtering sand in the filtering tower; while the contaminated filtering sand is removed from the bottom of the tower, is cleansed, then is returned to the top of the layer of the filtering sand for repeated use.
Inventors:
INADA SATOSHI
SUZUKI YOUJI
OKAMOTO TAMOTSU
SUZUKI YOUJI
OKAMOTO TAMOTSU
Application Number:
JP894176A
Publication Date:
August 03, 1977
Filing Date:
January 29, 1976
Export Citation:
Assignee:
TOYO BOSEKI
International Classes:
B01D24/02; B01D24/00; B01D29/62; (IPC1-7): B01D23/24