GB1502304A - Method and apparatus for dehydrating sewage sludge - Google Patents

Method and apparatus for dehydrating sewage sludge

Info

Publication number
GB1502304A
GB1502304A GB15304/75A GB1530475A GB1502304A GB 1502304 A GB1502304 A GB 1502304A GB 15304/75 A GB15304/75 A GB 15304/75A GB 1530475 A GB1530475 A GB 1530475A GB 1502304 A GB1502304 A GB 1502304A
Authority
GB
United Kingdom
Prior art keywords
belt
zone
sludge
pressing
sewage sludge
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.)
Expired
Application number
GB15304/75A
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.)
IND BERATUNGS AG
Original Assignee
IND BERATUNGS AG
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
Priority to CH469775A priority Critical patent/CH610579A5/en
Application filed by IND BERATUNGS AG filed Critical IND BERATUNGS AG
Priority to GB15304/75A priority patent/GB1502304A/en
Priority to DE2522505A priority patent/DE2522505C3/en
Publication of GB1502304A publication Critical patent/GB1502304A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
    • B01D33/042—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering whereby the filtration and squeezing-out take place between at least two filtering bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
    • B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
    • B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
    • B01D33/646—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression by pressure rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/03—Processes of filtration using flocculating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/24—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/24—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band
    • B30B9/243—The squeezing-out being performed in several stages

Abstract

1502304 Moving belt filter INDUSTRIEBERATUNGS AG 14 April 1975 15304/75 Heading BID Sewage sludge is dehydrated by distribution onto an ascending portion of an endless moving screening belt and is successively passed firstly through a straining zone on said ascending portion, secondly through a suction zone on a substantially horizontal portion of said belt and thirdly through a pressing zone which extends in the direction of travel of the belt and in which an increasing pressure is applied to the sludge. -In the apparatus shown diagrammatically the sludge is fed onto belt 18 and in zone 10 is dewatered by gravity filtration, in zone 12 the belt passes over the permeable supporting element 22 of the suction chamber 26 and finally in pressing zone 14 belt 18 is pressed between impermeable roller 20 and permeable pressure belt 30. In a second apparatus (not shown) the sludge leaving the pressing zone is subjected to shear forces in a calendering process to further dehydrate it.
GB15304/75A 1975-04-11 1975-04-14 Method and apparatus for dehydrating sewage sludge Expired GB1502304A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH469775A CH610579A5 (en) 1975-04-11 1975-04-11 Process and apparatus for the dewatering of sludge
GB15304/75A GB1502304A (en) 1975-04-11 1975-04-14 Method and apparatus for dehydrating sewage sludge
DE2522505A DE2522505C3 (en) 1975-04-11 1975-05-21 Method and device for dewatering sludge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH469775A CH610579A5 (en) 1975-04-11 1975-04-11 Process and apparatus for the dewatering of sludge
GB15304/75A GB1502304A (en) 1975-04-11 1975-04-14 Method and apparatus for dehydrating sewage sludge

Publications (1)

Publication Number Publication Date
GB1502304A true GB1502304A (en) 1978-03-01

Family

ID=25696091

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15304/75A Expired GB1502304A (en) 1975-04-11 1975-04-14 Method and apparatus for dehydrating sewage sludge

Country Status (3)

Country Link
CH (1) CH610579A5 (en)
DE (1) DE2522505C3 (en)
GB (1) GB1502304A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2279888A (en) * 1993-07-16 1995-01-18 Adrian Parnaby Moving belt press filter
WO2005118491A1 (en) * 2004-06-02 2005-12-15 Kerttu Eriksson Arrangement to increase the concentration of solids in solutions
CN112841543A (en) * 2021-01-28 2021-05-28 重庆周师兄餐饮文化有限公司 Processing method of spicy crisp

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT375327B (en) * 1982-04-21 1984-07-25 Voest Alpine Ag DEVICE FOR PREVENTING THE SIDELINE OF A RIBBON
DE3221435C2 (en) * 1982-06-07 1985-10-31 Hitachi Plant Engineering & Construction Co., Ltd., Tokio/Tokyo Belt filter press for dewatering thickened sewage sludge
AT376905B (en) * 1982-10-18 1985-01-25 Voest Alpine Ag FILTER PRESS FOR THE DRAINAGE OF SUBSTANCES
AT390785B (en) * 1985-03-15 1990-06-25 Voest Alpine Ag METHOD AND DEVICE FOR OBTAINING A HIGH DRY CONTENT IN THE DRAINAGE OF SLUDGE
DE3637425A1 (en) * 1986-11-04 1988-05-19 Klein Alb Gmbh Co Kg Process and apparatus for dewatering sludge-like materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2279888A (en) * 1993-07-16 1995-01-18 Adrian Parnaby Moving belt press filter
WO2005118491A1 (en) * 2004-06-02 2005-12-15 Kerttu Eriksson Arrangement to increase the concentration of solids in solutions
CN112841543A (en) * 2021-01-28 2021-05-28 重庆周师兄餐饮文化有限公司 Processing method of spicy crisp

Also Published As

Publication number Publication date
DE2522505B2 (en) 1978-08-31
CH610579A5 (en) 1979-04-30
DE2522505A1 (en) 1976-10-21
DE2522505C3 (en) 1979-05-10

Similar Documents

Publication Publication Date Title
ES424094A1 (en) Filter press, particularly for dewatering sludge in sewage treatment plants
FI98843C (en) A method and apparatus for removing water from a paper or board web by compression
DE68925094D1 (en) Sludge dewatering method and apparatus
GB1425613A (en) Press for removing liquids from a web of material
GB1502304A (en) Method and apparatus for dehydrating sewage sludge
GB1528261A (en) Press for dewatering pulp or other fibrous material
GR3002520T3 (en) Dewatering process for filter cakes, and apparatus for carrying out the process
GB1345086A (en) Sludge dewatering apparatus and process
SE8605430L (en) VIBRABANDPRESS
GB1495349A (en) Apparatus for the continuous manufacture of chipboard panels or the like
GB1419406A (en)
ES8401726A1 (en) Pressure/belt filter, particularly for dewatering fine coal
EP0083790A3 (en) Method and apparatus for removing liquid from a suspension
EP0316997A3 (en) System and method for monitoring and/or controlling liquidsolid separation processes
JPS5656800A (en) Dehydration method of sludge
GB1395478A (en) Apparatus for dewatering a suspension
FR2360336A2 (en) Continuous dewatering filter plant for waste water sludge - uses pressure band filters between predraining and filter drum
SE8202505L (en) PROCEDURE FOR DRAINAGE OF Peat
GB1379954A (en) Press for removal of liquid from a web of material
GB1496715A (en) Apparatus for the removal of water from suspensions
FR2315304A1 (en) Drying sewage sludge by natural drainage and pressure straining - on two conveyor screens of successively finer perforations
GB1352672A (en) Process and apparatus for dewatering suspensions
ES375925A1 (en) Improvements in and relating to a method of and apparatus for forming a sheet or web of material from solids in suspension
DE3566916D1 (en) Process for grading paper, and apparatus for the application of the process
JPS5841699A (en) Belt press

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee