JPS5724700A - Dewatering of sludge - Google Patents

Dewatering of sludge

Info

Publication number
JPS5724700A
JPS5724700A JP7787080A JP7787080A JPS5724700A JP S5724700 A JPS5724700 A JP S5724700A JP 7787080 A JP7787080 A JP 7787080A JP 7787080 A JP7787080 A JP 7787080A JP S5724700 A JPS5724700 A JP S5724700A
Authority
JP
Japan
Prior art keywords
sludge
sand
valve
water
consequently
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.)
Granted
Application number
JP7787080A
Other languages
Japanese (ja)
Other versions
JPH0123200B2 (en
Inventor
Shuji Yamamoto
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.)
Organo Corp
Original Assignee
Organo Corp
Japan Organo Co 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 Organo Corp, Japan Organo Co Ltd filed Critical Organo Corp
Priority to JP7787080A priority Critical patent/JPS5724700A/en
Publication of JPS5724700A publication Critical patent/JPS5724700A/en
Publication of JPH0123200B2 publication Critical patent/JPH0123200B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Treatment Of Sludge (AREA)
  • Filtration Of Liquid (AREA)

Abstract

PURPOSE: To increase a treated amount per unit plottage, to shorten a dewatering period and to obtain dewatered cake having a low water content, in solar drying of sludge.
CONSTITUTION: In a solar drying bed 1, the valve 9 of a discharge pipe 6 is closed at first, and sludge premixed with a high molecular flocculant is let flow through an inlet 8 over a filter layer composed of sand 4 and pebbles 3. At an initial stage, water is immediately separated from the sludge by gravity dewatering. However, the valve 9 remains closed, so that water is accumulated and the water level rises to the surface of the sand 4. Consequently, sludge flowing in thereafter changes into a slurry state and formes a sludge layer having a uniform thickness on the sand 4. When the sludge layer of a uniform thickness is formed over the entire surface, the valve 9 is opened. Consequently, the sludge is uniformly accumulated and thus evaporation to dryness using a solar energy can be done with high efficiency.
COPYRIGHT: (C)1982,JPO&Japio
JP7787080A 1980-06-11 1980-06-11 Dewatering of sludge Granted JPS5724700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7787080A JPS5724700A (en) 1980-06-11 1980-06-11 Dewatering of sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7787080A JPS5724700A (en) 1980-06-11 1980-06-11 Dewatering of sludge

Publications (2)

Publication Number Publication Date
JPS5724700A true JPS5724700A (en) 1982-02-09
JPH0123200B2 JPH0123200B2 (en) 1989-05-01

Family

ID=13646082

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7787080A Granted JPS5724700A (en) 1980-06-11 1980-06-11 Dewatering of sludge

Country Status (1)

Country Link
JP (1) JPS5724700A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5291526A (en) * 1991-02-28 1994-03-01 Olympus Optical Co., Ltd. Digital signal reproducing apparatus for reducing influence by jitter
US5293549A (en) * 1991-05-16 1994-03-08 Olympus Optical Co., Ltd. Digital signal apparatus for correctly demodulating data despite a fluctuation in reading rate or variation in regenerated pulse duration due to abnormalities in a recording medium from which data is being read

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5364949A (en) * 1976-11-20 1978-06-09 Ebara Infilco Co Ltd Method of filtering by hydroextration

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5364949A (en) * 1976-11-20 1978-06-09 Ebara Infilco Co Ltd Method of filtering by hydroextration

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5291526A (en) * 1991-02-28 1994-03-01 Olympus Optical Co., Ltd. Digital signal reproducing apparatus for reducing influence by jitter
US5293549A (en) * 1991-05-16 1994-03-08 Olympus Optical Co., Ltd. Digital signal apparatus for correctly demodulating data despite a fluctuation in reading rate or variation in regenerated pulse duration due to abnormalities in a recording medium from which data is being read

Also Published As

Publication number Publication date
JPH0123200B2 (en) 1989-05-01

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