JPS562900A - Dehydration of sludge in treated water - Google Patents

Dehydration of sludge in treated water

Info

Publication number
JPS562900A
JPS562900A JP7935379A JP7935379A JPS562900A JP S562900 A JPS562900 A JP S562900A JP 7935379 A JP7935379 A JP 7935379A JP 7935379 A JP7935379 A JP 7935379A JP S562900 A JPS562900 A JP S562900A
Authority
JP
Japan
Prior art keywords
sludge
supplied
treatment
dehydration
filtrate
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
JP7935379A
Other languages
Japanese (ja)
Inventor
Kiyohiko Tokunaga
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 JP7935379A priority Critical patent/JPS562900A/en
Publication of JPS562900A publication Critical patent/JPS562900A/en
Pending legal-status Critical Current

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  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To permit to take out a sludge in a condition available for post-treatment by a method wherein the dehydration of a sludge in the treated water is carried out by using a belt press type dehydrating machine and a screw press together to enhance sludge recovery ratio by a reduced amount of added chemicals.
CONSTITUTION: The sludge treated by flocculation is supplied to a primary dehydrating machine 2 such as a belt press type or the like and a water content of the sludge is lowered to about 70W80% and a filtrate L is taken out of the system. Subsequently, the sludge is supplied to a screw press 3 to be subjected to the secondary dehydrating treatment and a filtrate L is taken out of the system to be supplied to a post-treating apparatus 4 such as an incineration or a drying apparatus. By this treatment, about 80W99% of a sludge against the sludge supplied to the primary dehydrating machine 2 can be recovered. Moreover, the leakage can be retarded and water content can be certainly reduced while a treating amount per unit time is increased.
COPYRIGHT: (C)1981,JPO&Japio
JP7935379A 1979-06-22 1979-06-22 Dehydration of sludge in treated water Pending JPS562900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7935379A JPS562900A (en) 1979-06-22 1979-06-22 Dehydration of sludge in treated water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7935379A JPS562900A (en) 1979-06-22 1979-06-22 Dehydration of sludge in treated water

Publications (1)

Publication Number Publication Date
JPS562900A true JPS562900A (en) 1981-01-13

Family

ID=13687531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7935379A Pending JPS562900A (en) 1979-06-22 1979-06-22 Dehydration of sludge in treated water

Country Status (1)

Country Link
JP (1) JPS562900A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5851999A (en) * 1981-09-21 1983-03-26 Ebara Infilco Co Ltd Method of dehydrating sludge
JPH04322800A (en) * 1991-04-19 1992-11-12 Kurita Water Ind Ltd Method for dehydrating sludge
JP2007000734A (en) * 2005-06-22 2007-01-11 Mitsubishi Heavy Ind Ltd Method for treating organic waste water, and system therefor
JP2012187449A (en) * 2011-03-08 2012-10-04 Yoshiro Aoyama Thermal dehydration of sludge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5450145A (en) * 1977-09-27 1979-04-19 Shigeru Hirai Activated sludge dehydration method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5450145A (en) * 1977-09-27 1979-04-19 Shigeru Hirai Activated sludge dehydration method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5851999A (en) * 1981-09-21 1983-03-26 Ebara Infilco Co Ltd Method of dehydrating sludge
JPH04322800A (en) * 1991-04-19 1992-11-12 Kurita Water Ind Ltd Method for dehydrating sludge
JP2007000734A (en) * 2005-06-22 2007-01-11 Mitsubishi Heavy Ind Ltd Method for treating organic waste water, and system therefor
JP4671780B2 (en) * 2005-06-22 2011-04-20 三菱重工環境・化学エンジニアリング株式会社 Organic wastewater treatment method and system
JP2012187449A (en) * 2011-03-08 2012-10-04 Yoshiro Aoyama Thermal dehydration of sludge

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