Title:
HIGH-LEVEL PURIFYING DEVICE FOR ORGANIC POLLUTED WATER
Document Type and Number:
Japanese Patent JP2684495
Kind Code:
B2
Abstract:
PURPOSE: To provide the purifying device of single vessel which can highly remove BOD, SS, and COD, and perform denitration without installing a presedimentation tank at the front stage, can obtain very clear treated water and can be washed without consumption of treating water.
CONSTITUTION: The packed layer A which is immersed into a clarifying tank and packed with bacteria adsorbing activated carbon is installed, the packed layer B which is packed with a granular filter medium is installed at the lower part of the supporting bed of the packed layer A, moreover, the packed layer C which is packed with a granular filter medium is installed at the lower part of the layer with a porous water passing medium, raw water is fed from the lower part of the packed layer C and allowed to flow upward, diffusing part of oxygen containing gas is installed at the lower part of the packed layer C at least, and the outlet of treating water is installed at the upper side of the packed layer A.
Inventors:
Katayuki Kataoka
Application Number:
JP25045692A
Publication Date:
December 03, 1997
Filing Date:
August 27, 1992
Export Citation:
Assignee:
Ebara Corporation
EBARA Research Institute, Ltd.
EBARA Research Institute, Ltd.
International Classes:
C02F3/06; C02F3/10; C02F3/34; (IPC1-7): C02F3/06; C02F3/10; C02F3/34
Domestic Patent References:
| JP466193A | ||||
| JP6436097U |
Attorney, Agent or Firm:
Tadashi Hagino (3 outside)
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