JPS54105850A - Circulatory denitrification method of waste water - Google Patents

Circulatory denitrification method of waste water

Info

Publication number
JPS54105850A
JPS54105850A JP1230178A JP1230178A JPS54105850A JP S54105850 A JPS54105850 A JP S54105850A JP 1230178 A JP1230178 A JP 1230178A JP 1230178 A JP1230178 A JP 1230178A JP S54105850 A JPS54105850 A JP S54105850A
Authority
JP
Japan
Prior art keywords
water
medium
circulating
column
sludge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1230178A
Other languages
Japanese (ja)
Inventor
Kazuyuki Shiga
Yoshinori Yushina
Akinori Kurima
Yasuhiro Iwase
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chiyoda Chemical Engineering and Construction Co Ltd
Original Assignee
Chiyoda Chemical Engineering and Construction Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chiyoda Chemical Engineering and Construction Co Ltd filed Critical Chiyoda Chemical Engineering and Construction Co Ltd
Priority to JP1230178A priority Critical patent/JPS54105850A/en
Publication of JPS54105850A publication Critical patent/JPS54105850A/en
Pending legal-status Critical Current

Links

Landscapes

  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PURPOSE: To accomplish re-use of water containing a carrier and a peeled off microorganism by circulating the water as is through the bottom of a fluidized bed in a method of denitrifying waste water by forming a fluidized bed empolying a carrier having the microorganism attached thereto.
CONSTITUTION: Raw influent 1 is injected into the bottom of a reaction column and evenly dispersed by a dispersion plate 3. Then, together with circulating treating water fed on to the dispersion plate 3 with a circulating pump 12, it fluidizes a medium having microorganisms attached thereto in such a manner as to form a fluedized bed 4 for denitrification. A part of the treating water reaching the top of the column is withdrawn from a line 11 to be inducted into the column again as a circulating treating water with the circulating pump 12 while the remainder thereof is drained out of the top of the column as treated water. The circulating pump 12 sucks the medium with sludge attached, peels the sludge off the medium by a shearing force of sucking pump blades, and finally sends the sludge and the medium to the bottom of the fluidized bed.
COPYRIGHT: (C)1979,JPO&Japio
JP1230178A 1978-02-08 1978-02-08 Circulatory denitrification method of waste water Pending JPS54105850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1230178A JPS54105850A (en) 1978-02-08 1978-02-08 Circulatory denitrification method of waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1230178A JPS54105850A (en) 1978-02-08 1978-02-08 Circulatory denitrification method of waste water

Publications (1)

Publication Number Publication Date
JPS54105850A true JPS54105850A (en) 1979-08-20

Family

ID=11801491

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1230178A Pending JPS54105850A (en) 1978-02-08 1978-02-08 Circulatory denitrification method of waste water

Country Status (1)

Country Link
JP (1) JPS54105850A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505819A (en) * 1980-08-18 1985-03-19 Unisearch Limited Method for the anaerobic degradation of organic material
US4618418A (en) * 1982-03-29 1986-10-21 Gist-Brocades N.V. Fluidized bed reactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505819A (en) * 1980-08-18 1985-03-19 Unisearch Limited Method for the anaerobic degradation of organic material
US4618418A (en) * 1982-03-29 1986-10-21 Gist-Brocades N.V. Fluidized bed reactor

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