JPS5719095A - Disposal of highly concentrated waste liquid without dilution - Google Patents

Disposal of highly concentrated waste liquid without dilution

Info

Publication number
JPS5719095A
JPS5719095A JP9348480A JP9348480A JPS5719095A JP S5719095 A JPS5719095 A JP S5719095A JP 9348480 A JP9348480 A JP 9348480A JP 9348480 A JP9348480 A JP 9348480A JP S5719095 A JPS5719095 A JP S5719095A
Authority
JP
Japan
Prior art keywords
vessel
nitrification
waste liquid
denitrification
highly concentrated
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
JP9348480A
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 JP9348480A priority Critical patent/JPS5719095A/en
Publication of JPS5719095A publication Critical patent/JPS5719095A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To dispose a highly concentrated waste liquid without diluting it or adding any reagents to it in only a few days, by aligning the first nitrification vessel, the first denitrification vessel, the second nitrification vessel and the second denitrification vessel in this order to perform nitrification and denitrification.
CONSTITUTION: A highly concentrated waste liquid 1 is nitrified in the first nitrification vessel 3, to remove most of BOD and T-N from the waste liquid. At this time, NH4-N is oxidized into NO2-N, which, in turn, is converted into N2, too. The waste liquid is then denitrified in the first denitrification vessel 8 to remove NO2-N. A portion of the primary denitrified liquid 9 obtained in this vessel 8 is cyclically fed to the first nitrification vessel 3, while the remainder is nitrified in the second nitrification vessel 11. At this time, NH4-N in the liquid is completely oxidized and removed. Thereafter, the liquid is denitrified in the second denitrification vessel 14, to completely remove NO2-N or the like which was formed by oxidation of NH4-N in the second nitrification vessel 11.
COPYRIGHT: (C)1982,JPO&Japio
JP9348480A 1980-07-09 1980-07-09 Disposal of highly concentrated waste liquid without dilution Pending JPS5719095A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9348480A JPS5719095A (en) 1980-07-09 1980-07-09 Disposal of highly concentrated waste liquid without dilution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9348480A JPS5719095A (en) 1980-07-09 1980-07-09 Disposal of highly concentrated waste liquid without dilution

Publications (1)

Publication Number Publication Date
JPS5719095A true JPS5719095A (en) 1982-02-01

Family

ID=14083614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9348480A Pending JPS5719095A (en) 1980-07-09 1980-07-09 Disposal of highly concentrated waste liquid without dilution

Country Status (1)

Country Link
JP (1) JPS5719095A (en)

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