JPS56147698A - Biological nitrifying and denitrifying method for night soil type sewage - Google Patents

Biological nitrifying and denitrifying method for night soil type sewage

Info

Publication number
JPS56147698A
JPS56147698A JP5013280A JP5013280A JPS56147698A JP S56147698 A JPS56147698 A JP S56147698A JP 5013280 A JP5013280 A JP 5013280A JP 5013280 A JP5013280 A JP 5013280A JP S56147698 A JPS56147698 A JP S56147698A
Authority
JP
Japan
Prior art keywords
denitrification
nitrification
soil type
night soil
type sewage
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
JP5013280A
Other languages
Japanese (ja)
Inventor
Takayuki Suzuki
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.)
Ebara Corp
Original Assignee
Ebara Infilco 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 Ebara Infilco Co Ltd filed Critical Ebara Infilco Co Ltd
Priority to JP5013280A priority Critical patent/JPS56147698A/en
Publication of JPS56147698A publication Critical patent/JPS56147698A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To subject sewage to efficient nitrification and denitrification treatment by setting the water temperatures in nitrification process and denitrification process and the activated sludge concn. of the nitrification process at specific ranges and circulating the specific amount of NOX in the nitrification process to the denitrification process.
CONSTITUTION: In biologically treating night soil type sewage by providing a denitrification process 4 to the prestage of a nitrificatin process 6 and circulating the nitrified liquid to the denitrification process, the water temperatures of the process 6 and the process 4 are kept at 25W42°C, and the activated sludge concn. of the process 6 is maintained at 10W40g/l. Thence, 70W95% of the NOX formed in the process 6 is circulated to the process 4, and the treatment is performed while the number of days of the night soil type sewage stagnating in the process 6 and the process 4 are being kept at 0.5W5.0 days respectively. Thereby, the nitrifying and denitrifying device is efficiently reduced in size and both the installation area and construction cost thereof are considerably reduced.
COPYRIGHT: (C)1981,JPO&Japio
JP5013280A 1980-04-16 1980-04-16 Biological nitrifying and denitrifying method for night soil type sewage Pending JPS56147698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5013280A JPS56147698A (en) 1980-04-16 1980-04-16 Biological nitrifying and denitrifying method for night soil type sewage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5013280A JPS56147698A (en) 1980-04-16 1980-04-16 Biological nitrifying and denitrifying method for night soil type sewage

Publications (1)

Publication Number Publication Date
JPS56147698A true JPS56147698A (en) 1981-11-16

Family

ID=12850607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5013280A Pending JPS56147698A (en) 1980-04-16 1980-04-16 Biological nitrifying and denitrifying method for night soil type sewage

Country Status (1)

Country Link
JP (1) JPS56147698A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62140699A (en) * 1985-12-17 1987-06-24 Ebara Infilco Co Ltd Biological treatment of organic waste water

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5027307A (en) * 1973-07-16 1975-03-20
JPS5392551A (en) * 1977-01-24 1978-08-14 Ataka Kensetsu Kougiyou Kk Method of treating waste water

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5027307A (en) * 1973-07-16 1975-03-20
JPS5392551A (en) * 1977-01-24 1978-08-14 Ataka Kensetsu Kougiyou Kk Method of treating waste water

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62140699A (en) * 1985-12-17 1987-06-24 Ebara Infilco Co Ltd Biological treatment of organic waste water
JPH0134680B2 (en) * 1985-12-17 1989-07-20 Ebara Infuiruko Kk

Similar Documents

Publication Publication Date Title
SE8500245D0 (en) PROCEDURE FOR WASTE WASTE CLEANING BY USING ACTIVATED SLIDES
FR2547574B1 (en) PROCESS AND PLANT FOR THE AEROBIC BIOLOGICAL PURIFICATION OF WASTEWATER USING FREE AND FIXED MICROORGANISMS
JPS56147698A (en) Biological nitrifying and denitrifying method for night soil type sewage
DE2963411D1 (en) Process for the nitrification and denitrification of waste water
FR2337576A2 (en) Waste water purificn. via anaerobic biological filter - for denitrification of water after activated sludge treatment
JPS56129096A (en) Disposal of night soil type sludge
JPS52130150A (en) Improvement on method of biological denitrification
JPS57110397A (en) Treatment of fecal sewage
FR2482947B1 (en) PROCESS FOR TREATING SLUDGE OF WASTEWATER AND SLUDGE TREATED IN ACCORDANCE WITH SAID PROCESS.
JPS56161892A (en) Unstationary active sludge process
JPS5335262A (en) Human waste treating method
ES464568A1 (en) Procedure for water treatment by means of activated bars. (Machine-translation by Google Translate, not legally binding)
JPS53107157A (en) Method of disposing waste water in excrements system
JPS55106598A (en) Device for biologically denitrifying waste water
JPS5613094A (en) High degree treating method of organic waste water
YAMANOUCHI et al. A BASIC STUDY OF BIOLOGICAL NITRIFICATION AND DENITRIFICATION,(IN JAPANESE)
JPS5753291A (en) Treatment with active sludge
FR2400489A1 (en) Biological purification of waste water - includes oxygenation, degradation, nitrification and denitrification steps
Ganczarczyk Nitrification kinetics and inhibition in wastewater treatment.
JPS5471857A (en) Method of treating ammonia containing waste water by way of biological denitrification
Zijlstra Introduction to the 9 th vacation course on the treatment of waste water
JPS53103653A (en) Method of removing nitrogenous compound in waste water
JPS544469A (en) Mathod of treating raw system organic waste water at high efficiency
JPS5471858A (en) Method of treating ammonia containing waste water by way of biological denitrification
JPS5447362A (en) Biological treatment of waste water