JPS5759698A - Dewatering method for sludge - Google Patents

Dewatering method for sludge

Info

Publication number
JPS5759698A
JPS5759698A JP55132394A JP13239480A JPS5759698A JP S5759698 A JPS5759698 A JP S5759698A JP 55132394 A JP55132394 A JP 55132394A JP 13239480 A JP13239480 A JP 13239480A JP S5759698 A JPS5759698 A JP S5759698A
Authority
JP
Japan
Prior art keywords
sludge
belt
water
retaining
strip
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
JP55132394A
Other languages
Japanese (ja)
Inventor
Kenji Kojima
Toshio Koyakata
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.)
Hitachi Plant Construction Co Ltd
Hitachi Plant Technologies Ltd
Original Assignee
Hitachi Plant Construction Co Ltd
Hitachi Plant Technologies 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 Hitachi Plant Construction Co Ltd, Hitachi Plant Technologies Ltd filed Critical Hitachi Plant Construction Co Ltd
Priority to JP55132394A priority Critical patent/JPS5759698A/en
Publication of JPS5759698A publication Critical patent/JPS5759698A/en
Pending legal-status Critical Current

Links

Landscapes

  • Physical Water Treatments (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To efficiently dewater water-retaining sludge, by charging the water-retaining sludge onto a belt conveyer to form a sludge strip, gradually cooling the surface of the sludge strip during its carriage to form frost columns, and removing them.
CONSTITUTION: Sludge 7, having a water-retaining rate of 75W85% for instance, changed into a hopper 6 is quantitaively charged onto a belt 5 through the bottom of the hopper 6, to form a continuous sludge strip having a fixed thichkness on the belt 5. The sludge is carried into a freezing chamber 20 by the belt 5, where the sludge is freezed during its passage. According to this treatment, retained water comes out on the surface of the sludge, freezes as frost columns 8 and adheres onto the surface. Thereafter, the frost columns 8 are stripped by a cutter 12, and ice pieces 11 are discharged from a shoot 9. The dewatered sludge 10 is dropped from the end of the belt 5 and recovered.
COPYRIGHT: (C)1982,JPO&Japio
JP55132394A 1980-09-25 1980-09-25 Dewatering method for sludge Pending JPS5759698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55132394A JPS5759698A (en) 1980-09-25 1980-09-25 Dewatering method for sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55132394A JPS5759698A (en) 1980-09-25 1980-09-25 Dewatering method for sludge

Publications (1)

Publication Number Publication Date
JPS5759698A true JPS5759698A (en) 1982-04-10

Family

ID=15080355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55132394A Pending JPS5759698A (en) 1980-09-25 1980-09-25 Dewatering method for sludge

Country Status (1)

Country Link
JP (1) JPS5759698A (en)

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