DK0463292T3 - Process for dewatering aqueous sludge - Google Patents

Process for dewatering aqueous sludge

Info

Publication number
DK0463292T3
DK0463292T3 DK91103809.9T DK91103809T DK0463292T3 DK 0463292 T3 DK0463292 T3 DK 0463292T3 DK 91103809 T DK91103809 T DK 91103809T DK 0463292 T3 DK0463292 T3 DK 0463292T3
Authority
DK
Denmark
Prior art keywords
sludge
dehydrated
sludges
aqueous sludge
pressure dehydration
Prior art date
Application number
DK91103809.9T
Other languages
Danish (da)
Inventor
Dipl Ing Wolfang Mueller
Dipl Ing Dirk Herzog
Original Assignee
Mueller Umwelttechnik
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 Mueller Umwelttechnik filed Critical Mueller Umwelttechnik
Application granted granted Critical
Publication of DK0463292T3 publication Critical patent/DK0463292T3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
    • B01D29/80—Handling the filter cake in the filter for purposes other than for regenerating for drying
    • B01D29/82—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression
    • B01D29/824—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression using pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/885—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices with internal recirculation through the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/282—Filtering elements with a horizontal rotation or symmetry axis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Sludge (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Conventional processes for the pressure dehydration of aqueous sludges require a complicated and heavy hydraulic unit for pushing dehydrated sludge out of a filter chamber. This unit is to be made superfluous by applying the novel process. For this purpose, the thin sludge (10) delivered under pressure is used as the medium for driving the pusher piston (7'), the thin sludge (10) already being pre-dehydrated. This process is applied in fixed and also mobile installations, wherever mechanical pressure dehydration of sludges is carried out for reducing the volume and concentrating solids. <IMAGE>
DK91103809.9T 1990-06-27 1991-03-13 Process for dewatering aqueous sludge DK0463292T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4020405A DE4020405C2 (en) 1990-06-27 1990-06-27 Process for the pressure drainage of aqueous sludges

Publications (1)

Publication Number Publication Date
DK0463292T3 true DK0463292T3 (en) 1994-03-14

Family

ID=6409151

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91103809.9T DK0463292T3 (en) 1990-06-27 1991-03-13 Process for dewatering aqueous sludge

Country Status (5)

Country Link
EP (1) EP0463292B1 (en)
AT (1) ATE98135T1 (en)
DE (2) DE4020405C2 (en)
DK (1) DK0463292T3 (en)
ES (1) ES2046808T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2033843C1 (en) * 1992-06-19 1995-04-30 Анатолий Васильевич Соколов Filter for suspension separation
DE4223503A1 (en) * 1992-07-17 1994-01-20 Mueller Umwelttechnik Appts. for disposal of slurries contg. oil or other grease - comprises slurry press whose filtrate is segregated into oil, water and oil slurry phases
DE9300384U1 (en) * 1993-01-14 1993-03-25 Kary GmbH, 2800 Bremen Device for cleaning municipal wastewater
DE4404767C1 (en) * 1994-02-16 1995-05-04 Edmund Dr Wax Device for treating aqueous sludge
DE102009008904A1 (en) * 2009-02-13 2010-09-02 Gosatec Gmbh Apparatus and method for liquid separation
AT508024B1 (en) * 2009-06-18 2010-10-15 Celtec Gmbh DEVICE FOR REMOVING GREEN SOLIDS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1437838A (en) * 1965-06-11 1966-05-06 Filter with automatic cleaning device for all fluids
DE2333405A1 (en) * 1973-06-30 1975-01-16 Bamag Verfahrenstechnik Gmbh DEVICE FOR FILTRATING LIQUIDS
DE3641180A1 (en) * 1986-12-02 1988-06-16 Mueller Umwelttechnik DEVICE FOR PRESSURE DRAINAGE OF AQUEOUS SLUDGE
DE3914326C2 (en) * 1988-05-07 1997-07-17 Sartorius Gmbh Filter device for the filtration of suspensions, for clarification filtration and for ultra and microfiltration of liquids

Also Published As

Publication number Publication date
EP0463292A1 (en) 1992-01-02
DE59100686D1 (en) 1994-01-20
ES2046808T3 (en) 1994-02-01
DE4020405A1 (en) 1992-01-02
ATE98135T1 (en) 1993-12-15
DE4020405C2 (en) 1999-11-18
EP0463292B1 (en) 1993-12-08

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