IE782511L - Apparatus for thickening sludge - Google Patents

Apparatus for thickening sludge

Info

Publication number
IE782511L
IE782511L IE782511A IE251178A IE782511L IE 782511 L IE782511 L IE 782511L IE 782511 A IE782511 A IE 782511A IE 251178 A IE251178 A IE 251178A IE 782511 L IE782511 L IE 782511L
Authority
IE
Ireland
Prior art keywords
sludge
band
horizontal run
tank
run
Prior art date
Application number
IE782511A
Other versions
IE47620B1 (en
Original Assignee
Hartley Simon 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 Hartley Simon Ltd filed Critical Hartley Simon Ltd
Publication of IE782511L publication Critical patent/IE782511L/en
Publication of IE47620B1 publication Critical patent/IE47620B1/en

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
    • 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
    • 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
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
    • 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
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/74—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate
    • B01D33/742—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate containing fixed liquid displacement elements or cores
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Sludge (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Paper (AREA)

Abstract

An apparatus for thickening sludge is disclosed herein. The apparatus includes an endless band of mesh material which, in one section of the apparatus, has a generally horizontal run extending between spaced guides. The horizontal run is supported between the guides on a structure which permits liquid to drain freely through the band. A structure is provided for introducing sludge to be treated into the apparatus, together with means for dosing the sludge to be treated with a cationic polyelectrolyte. A tank for receiving and holding the dosed sludge for a sufficient period of time to allow development of a flock structure is also provided. A supply means is also provided for supplying sludge from the tank to the upper surface of the band of mesh material at the start of the horizontal run in such a manner that the floc structure is retained. The supply means comprises a weir constituting the outlet of the tank and a chute of shallow gradient extending from the weir to the start of the horizontal run whereby to deposit the sludge on the band without substantial forward velocity. A drive means is also provided for driving the band so that the sludge is conveyed through the run without destroying the floc structure of the sludge and a scraper is provided for removing thickened sludge from the surface of the band after the horizontal run. [CA1106510A]
IE2511/78A 1978-05-25 1978-12-19 Improvements in or relating to sludge thickening IE47620B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22250/78A GB1602677A (en) 1978-05-25 1978-05-25 Sludge thickening

Publications (2)

Publication Number Publication Date
IE782511L true IE782511L (en) 1979-11-25
IE47620B1 IE47620B1 (en) 1984-05-02

Family

ID=10176330

Family Applications (1)

Application Number Title Priority Date Filing Date
IE2511/78A IE47620B1 (en) 1978-05-25 1978-12-19 Improvements in or relating to sludge thickening

Country Status (20)

Country Link
JP (1) JPS54154156A (en)
AU (1) AU522671B2 (en)
BE (1) BE873750A (en)
BR (1) BR7901677A (en)
CA (1) CA1106510A (en)
DE (1) DE2905213A1 (en)
DK (1) DK156640C (en)
ES (1) ES476440A1 (en)
FR (1) FR2426485B1 (en)
GB (1) GB1602677A (en)
HK (1) HK2683A (en)
IE (1) IE47620B1 (en)
IT (1) IT1110299B (en)
LU (1) LU80836A1 (en)
NL (1) NL181101C (en)
NO (1) NO790075L (en)
NZ (1) NZ189221A (en)
PT (1) PT69163A (en)
SE (1) SE7900478L (en)
ZA (1) ZA79150B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2068761B (en) * 1980-02-01 1984-04-26 Hartley Simon Ltd Method and apparatus for dewatering sludge

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3531404A (en) * 1968-04-01 1970-09-29 Union Tank Car Co Sewage treatment system
BE795268A (en) * 1971-08-27 1973-05-29 Sanko Chemical Co Ltd PRESSURE SENSITIVE GRAPHIC SHEETS
GB1418577A (en) * 1973-05-29 1975-12-24 Machinenfabriek W Hubert Co Bv Method and apparatus for dewatering sludge
DE2343324A1 (en) * 1973-08-28 1975-03-20 Albert Baehr FILTER PRESS, IN PARTICULAR FOR DEWATERING OF SLUDGE IN WASTE WATER PURIFICATION PLANTS
FR2296453A2 (en) * 1974-06-10 1976-07-30 Meyer Jacques Endless band filter for liq. suspensions e.g. flocculated effluent - with band cleaned in motion by stretching and contra flow air.
JPS5117142A (en) * 1974-08-01 1976-02-10 Sanei Chubo Kk Kakupaipuno enkyokubukeiseihohoo
JPS534343A (en) * 1976-06-16 1978-01-14 Organo Kk Treating method for dehydrating sewage

Also Published As

Publication number Publication date
FR2426485B1 (en) 1986-10-24
ES476440A1 (en) 1979-05-01
LU80836A1 (en) 1979-06-05
AU4682279A (en) 1979-11-29
DK156640C (en) 1990-01-29
BE873750A (en) 1979-05-16
IT1110299B (en) 1985-12-23
FR2426485A1 (en) 1979-12-21
NL181101B (en) 1987-01-16
IT7919861A0 (en) 1979-02-02
JPS54154156A (en) 1979-12-05
SE7900478L (en) 1979-11-26
BR7901677A (en) 1979-12-04
ZA79150B (en) 1980-01-30
PT69163A (en) 1979-01-31
DE2905213A1 (en) 1979-11-29
AU522671B2 (en) 1982-06-17
CA1106510A (en) 1981-08-04
NZ189221A (en) 1980-04-28
IE47620B1 (en) 1984-05-02
DE2905213C2 (en) 1988-10-06
NL7900125A (en) 1979-11-27
NL181101C (en) 1987-06-16
DK164179A (en) 1979-11-26
DK156640B (en) 1989-09-18
HK2683A (en) 1983-01-20
NO790075L (en) 1979-11-27
GB1602677A (en) 1981-11-11

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