JPS5464854A - Method of purifying secondary treated water of excerementitious matter - Google Patents

Method of purifying secondary treated water of excerementitious matter

Info

Publication number
JPS5464854A
JPS5464854A JP13113777A JP13113777A JPS5464854A JP S5464854 A JPS5464854 A JP S5464854A JP 13113777 A JP13113777 A JP 13113777A JP 13113777 A JP13113777 A JP 13113777A JP S5464854 A JPS5464854 A JP S5464854A
Authority
JP
Japan
Prior art keywords
treated water
matter
secondary treated
ozone
aerating
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
JP13113777A
Other languages
Japanese (ja)
Inventor
Shigeru Suzuki
Shigeki Nakayama
Kenji Ezaki
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 Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13113777A priority Critical patent/JPS5464854A/en
Publication of JPS5464854A publication Critical patent/JPS5464854A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To provide a method of purifying secondary treated water of excrementitious matter, comprising the steps of aerating the secondary treated water of excretitious matter, thereby subjecting the same to bobble separation, and then oxidizing polluting and coloring matters with ozone, while utilizing residual ozone by adding the same to aerating air, whereby it is enabled to omit ozone decomposing means and thus to make the apparatus simple, compact and economical.
CONSTITUTION: Secondary treated water of excrementitious matter, subjected to anaerobic biological treatment and chemical oxidation, is adjusted to pH 3 to 5, and it is bubbled by supplying air from aerating plate 3. After bubbling separation, it is introduced into ozone tank 7, where it is aerated with ozonied air supplied from ozone generator 10 to remove COD and coloring matter. Here, exhaust gas of the tank 7 is supplied to compressor 4 to add the same to air to be aerated from aerating plate 3. Thus, the exhaust gas from ozone tank 7 is utilized for the above bubbling separation of the secondary treated water of excrementitious matter. After removing COD and coloring matters from the secondary treated water, it is neutralized with alkali and then discharged to the outside.
COPYRIGHT: (C)1979,JPO&Japio
JP13113777A 1977-10-31 1977-10-31 Method of purifying secondary treated water of excerementitious matter Pending JPS5464854A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13113777A JPS5464854A (en) 1977-10-31 1977-10-31 Method of purifying secondary treated water of excerementitious matter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13113777A JPS5464854A (en) 1977-10-31 1977-10-31 Method of purifying secondary treated water of excerementitious matter

Publications (1)

Publication Number Publication Date
JPS5464854A true JPS5464854A (en) 1979-05-25

Family

ID=15050847

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13113777A Pending JPS5464854A (en) 1977-10-31 1977-10-31 Method of purifying secondary treated water of excerementitious matter

Country Status (1)

Country Link
JP (1) JPS5464854A (en)

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