JPS5581800A - Dehydrating method for organic sludge - Google Patents

Dehydrating method for organic sludge

Info

Publication number
JPS5581800A
JPS5581800A JP15499678A JP15499678A JPS5581800A JP S5581800 A JPS5581800 A JP S5581800A JP 15499678 A JP15499678 A JP 15499678A JP 15499678 A JP15499678 A JP 15499678A JP S5581800 A JPS5581800 A JP S5581800A
Authority
JP
Japan
Prior art keywords
dehydrating
organic sludge
aqueous solution
amount
modified product
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
JP15499678A
Other languages
Japanese (ja)
Inventor
Asao Ogawa
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.)
Kurita Water Industries Ltd
Original Assignee
Kurita Water 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 Kurita Water Industries Ltd filed Critical Kurita Water Industries Ltd
Priority to JP15499678A priority Critical patent/JPS5581800A/en
Publication of JPS5581800A publication Critical patent/JPS5581800A/en
Pending legal-status Critical Current

Links

Landscapes

  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To raise the dehydrating rate of organic sludge as well as reduce the amount of pH regulating agent used by adding an aqueous solution of the partially Mannich modified product of methacrylamide or polymethacylylamide, whose pH is regulated to 7 or less, to organic sludge.
CONSTITUTION: When dehydrating organic sludge by the addition of an aqueous solution of the partially Mannich modified product of polyacrylamide or polymethacrylamide, as a dehydrating aid, the pH of the foresaid modified product aqueous solution is regulated to 7 or less by the addition of a protone doner, e.g., an inorganic or organic acid, etc., and the dehydration is performed by means of a vacuum dehydrator, a pressure dehydrator, etc. Thus, in comparison with the conventional methods, the amount of pH regulating agent used can be more reduced and also even if the amount of the agen used is the same, the moisture content of cake can be more lowered because of improved dehydrating rate.
COPYRIGHT: (C)1980,JPO&Japio
JP15499678A 1978-12-18 1978-12-18 Dehydrating method for organic sludge Pending JPS5581800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15499678A JPS5581800A (en) 1978-12-18 1978-12-18 Dehydrating method for organic sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15499678A JPS5581800A (en) 1978-12-18 1978-12-18 Dehydrating method for organic sludge

Publications (1)

Publication Number Publication Date
JPS5581800A true JPS5581800A (en) 1980-06-20

Family

ID=15596416

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15499678A Pending JPS5581800A (en) 1978-12-18 1978-12-18 Dehydrating method for organic sludge

Country Status (1)

Country Link
JP (1) JPS5581800A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04501823A (en) * 1989-06-30 1992-04-02 ダイアテク　エンバイロメンタル Protonated Mannich polymer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5090570A (en) * 1973-12-12 1975-07-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5090570A (en) * 1973-12-12 1975-07-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04501823A (en) * 1989-06-30 1992-04-02 ダイアテク　エンバイロメンタル Protonated Mannich polymer

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