WASHING METHO D OF FILTER AGENT FOR MOVING BED FILTER
Document Type and Number:
Japanese Patent JP51133857
PURPOSE: To improve washing effect and economize consumption of a filter water utilizing an air cleaning in parallel with a water washing by providing intake tube of compressed air beside washing water pipe.
November 19, 1976
May 13, 1975
B01D41/02; B01D41/00; (IPC1-7): B01D23/00; B01D41/00