JPS56121699A - Sludge disposer - Google Patents

Sludge disposer

Info

Publication number
JPS56121699A
JPS56121699A JP2432780A JP2432780A JPS56121699A JP S56121699 A JPS56121699 A JP S56121699A JP 2432780 A JP2432780 A JP 2432780A JP 2432780 A JP2432780 A JP 2432780A JP S56121699 A JPS56121699 A JP S56121699A
Authority
JP
Japan
Prior art keywords
sludge
tank
aerating
alkalinity
chemicals
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
JP2432780A
Other languages
Japanese (ja)
Inventor
Naotake Toshifuji
Toshishige Yamamoto
Tsutomu Kitagawa
Kenjiyu Ozawa
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 JP2432780A priority Critical patent/JPS56121699A/en
Publication of JPS56121699A publication Critical patent/JPS56121699A/en
Pending legal-status Critical Current

Links

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  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To enable to reduce the alkalinity of sludge in the secondary treatment of septic tank sludge so that the adding amount of chemicals may be minimized, by installing an aerating tank and a device supplying chemicals for adjusting pH of aerated sludge.
CONSTITUTION: The sludge of septic tank is put into receiving tank 1 and reserved in reserving tank 2. The sludge pulled out from tank 2 is aerated at aerating tank 6. After aerating for a prescribed time, chemicals, such as sulfuric acid, etc., is added to the sludge at chemical supplying device 4 to improve dehydrating property and then the sludge is dehydrated at dehydrator 3. The filtrate separated in this stage is secondarily disposed at active sludge disposing tank 5. By aerating the septic tank sludge for an adequate time in tank 6, the NH4 + which controls the alkalinity is changed into NO3 - by bacterial oxidizing reaction and thus the alkalinity is lowered.
COPYRIGHT: (C)1981,JPO&Japio
JP2432780A 1980-02-27 1980-02-27 Sludge disposer Pending JPS56121699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2432780A JPS56121699A (en) 1980-02-27 1980-02-27 Sludge disposer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2432780A JPS56121699A (en) 1980-02-27 1980-02-27 Sludge disposer

Publications (1)

Publication Number Publication Date
JPS56121699A true JPS56121699A (en) 1981-09-24

Family

ID=12135077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2432780A Pending JPS56121699A (en) 1980-02-27 1980-02-27 Sludge disposer

Country Status (1)

Country Link
JP (1) JPS56121699A (en)

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