JPS5715893A - Treating device for high concentration waste liquid - Google Patents

Treating device for high concentration waste liquid

Info

Publication number
JPS5715893A
JPS5715893A JP9040580A JP9040580A JPS5715893A JP S5715893 A JPS5715893 A JP S5715893A JP 9040580 A JP9040580 A JP 9040580A JP 9040580 A JP9040580 A JP 9040580A JP S5715893 A JPS5715893 A JP S5715893A
Authority
JP
Japan
Prior art keywords
tank
liquid
line
waste liquid
nitrifying
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
JP9040580A
Other languages
Japanese (ja)
Inventor
Yuji Yasuda
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP9040580A priority Critical patent/JPS5715893A/en
Publication of JPS5715893A publication Critical patent/JPS5715893A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To remove NH4-N in high concn. waste liquid with high efficiency by nitrifying said waste liquid in a nitrifying tank provided with an aerating device of large oxygen supplying capacity, then denitrifying the same in a denitrifying tank.
CONSTITUTION: High concn. waste liquid 1 in excess of an application range of an ordinary activated sludge method is flowed without dilution into a nitrifying tank 2 through a line 2. The tank 2 is provided with an aerating device 4 of large oxygen supplying capacity using a rotary atomizer as an air diffuser, wherein nitric acid germs act actively and the greater part of the BOD in the waste water is removed and the conversion of NH4-N to NO2-N and further to N2 takes place. The nitrified liquid after the treatment is introduced into a denitrifying tank 5, where it undergoes denitrification by nitrous acid germs. Part of the denitrified liquid circulates to the line 2 through a line 7. The greater part of the denitrified liquid is discharged from a line 11 through an aerating tank 8 and a solid-liquid separating tank 10.
COPYRIGHT: (C)1982,JPO&Japio
JP9040580A 1980-07-02 1980-07-02 Treating device for high concentration waste liquid Pending JPS5715893A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9040580A JPS5715893A (en) 1980-07-02 1980-07-02 Treating device for high concentration waste liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9040580A JPS5715893A (en) 1980-07-02 1980-07-02 Treating device for high concentration waste liquid

Publications (1)

Publication Number Publication Date
JPS5715893A true JPS5715893A (en) 1982-01-27

Family

ID=13997667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9040580A Pending JPS5715893A (en) 1980-07-02 1980-07-02 Treating device for high concentration waste liquid

Country Status (1)

Country Link
JP (1) JPS5715893A (en)

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