JPS56108597A - Water disposal - Google Patents

Water disposal

Info

Publication number
JPS56108597A
JPS56108597A JP980480A JP980480A JPS56108597A JP S56108597 A JPS56108597 A JP S56108597A JP 980480 A JP980480 A JP 980480A JP 980480 A JP980480 A JP 980480A JP S56108597 A JPS56108597 A JP S56108597A
Authority
JP
Japan
Prior art keywords
vessel
water
denitrificated
nitrogen
nitric
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
JP980480A
Other languages
Japanese (ja)
Inventor
Taketoshi Madokoro
Yoshihisa Narukami
Shinji Oba
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP980480A priority Critical patent/JPS56108597A/en
Publication of JPS56108597A publication Critical patent/JPS56108597A/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 reduce nitric and nitrous acid contents in finally disposed water, by returning a part of disposed water from a reaeration vessel to a denitrificating vessel in a disposer for nitrogen-containing water.
CONSTITUTION: Nitrogen-containing water is nitrificated at first vessel 2, and denitrificated by injection of ethanol or the like in the second vessel 3. The denitrificated water is then aerated in the third vessel 4. In this process, the disposed water from the third vessel 4 is carried through a line 9 to the second vessel 3. The water returned to the second vessel 3 is reductively denitrificated again. Consequently, nitric and nitrous acid contents in the finally disposed water are remarkably reduced, even in case where the finally disposed water contains nitric or nitrous nitrogen contaminants.
COPYRIGHT: (C)1981,JPO&Japio
JP980480A 1980-01-30 1980-01-30 Water disposal Pending JPS56108597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP980480A JPS56108597A (en) 1980-01-30 1980-01-30 Water disposal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP980480A JPS56108597A (en) 1980-01-30 1980-01-30 Water disposal

Publications (1)

Publication Number Publication Date
JPS56108597A true JPS56108597A (en) 1981-08-28

Family

ID=11730366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP980480A Pending JPS56108597A (en) 1980-01-30 1980-01-30 Water disposal

Country Status (1)

Country Link
JP (1) JPS56108597A (en)

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