SE0003618D0 - Bottom suction unit for surface cleaning of the sand bed in a slow filter in a filter pool at a water treatment plant - Google Patents

Bottom suction unit for surface cleaning of the sand bed in a slow filter in a filter pool at a water treatment plant

Info

Publication number
SE0003618D0
SE0003618D0 SE0003618A SE0003618A SE0003618D0 SE 0003618 D0 SE0003618 D0 SE 0003618D0 SE 0003618 A SE0003618 A SE 0003618A SE 0003618 A SE0003618 A SE 0003618A SE 0003618 D0 SE0003618 D0 SE 0003618D0
Authority
SE
Sweden
Prior art keywords
filter
sand bed
water treatment
treatment plant
surface cleaning
Prior art date
Application number
SE0003618A
Other languages
Swedish (sv)
Other versions
SE517199C2 (en
SE0003618L (en
Inventor
Miodrag Jankovic
Original Assignee
Miodrag Jankovic
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 Miodrag Jankovic filed Critical Miodrag Jankovic
Priority to SE0003618A priority Critical patent/SE517199C2/en
Publication of SE0003618D0 publication Critical patent/SE0003618D0/en
Priority to PCT/SE2001/002184 priority patent/WO2002028504A1/en
Priority to AU2001294468A priority patent/AU2001294468A1/en
Publication of SE0003618L publication Critical patent/SE0003618L/en
Publication of SE517199C2 publication Critical patent/SE517199C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/20—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being provided in an open container
    • B01D24/205—Downward filtration without specifications about the filter material supporting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element

Abstract

The invention relates to a bottom suction assembly for surface cleaning of the sand bed in a slow filter in a filter basin of a water treatment plant. The assembly is constituted by a float craft (1) which is movable in the basin and has an elongate suction nozzle (3) extending transversely across the float craft and being vertically adjustable to a predetermined depth in the sand bed and also including a sieve (5), arranged at its mouth, and a vibrator (6) mounted on the suction nozzle (3) in order to generate vibrations in the sieve (5) so as to separate algae an other contaminations which are at the same time sucked up through the nozzle by a pump (8), connected thereto, and are then transported to a filter bag (15) supported by the float craft (2).
SE0003618A 2000-10-06 2000-10-06 Bottom suction unit for surface cleaning of the sand bed in a slow filter SE517199C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0003618A SE517199C2 (en) 2000-10-06 2000-10-06 Bottom suction unit for surface cleaning of the sand bed in a slow filter
PCT/SE2001/002184 WO2002028504A1 (en) 2000-10-06 2001-10-08 Apparatus for cleaning the surface of a slow sand filter in a filterbasin of a water treatment plant
AU2001294468A AU2001294468A1 (en) 2000-10-06 2001-10-08 Apparatus for cleaning the surface of a slow sand filter in a filterbasin of a water treatment plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0003618A SE517199C2 (en) 2000-10-06 2000-10-06 Bottom suction unit for surface cleaning of the sand bed in a slow filter

Publications (3)

Publication Number Publication Date
SE0003618D0 true SE0003618D0 (en) 2000-10-06
SE0003618L SE0003618L (en) 2002-04-07
SE517199C2 SE517199C2 (en) 2002-05-07

Family

ID=20281329

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0003618A SE517199C2 (en) 2000-10-06 2000-10-06 Bottom suction unit for surface cleaning of the sand bed in a slow filter

Country Status (3)

Country Link
AU (1) AU2001294468A1 (en)
SE (1) SE517199C2 (en)
WO (1) WO2002028504A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2550472A1 (en) * 1975-11-11 1977-05-12 Werner Doppstadt DEVICE FOR REMOVING OBJECTS FROM LAYERS OF SAND
GB8723221D0 (en) * 1987-10-02 1987-11-04 Thames Water Authority Slow sand filters
SE511870C2 (en) * 1998-04-08 1999-12-06 Weda Poolcleaner Ab Method and apparatus for bottom cleaning of pools with sandy bottom

Also Published As

Publication number Publication date
WO2002028504A1 (en) 2002-04-11
SE517199C2 (en) 2002-05-07
AU2001294468A1 (en) 2002-04-15
SE0003618L (en) 2002-04-07

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Legal Events

Date Code Title Description
NUG Patent has lapsed