WO1998005402A1 - Apparatus for liquid purification - Google Patents
Apparatus for liquid purification Download PDFInfo
- Publication number
- WO1998005402A1 WO1998005402A1 PCT/AU1996/000442 AU9600442W WO9805402A1 WO 1998005402 A1 WO1998005402 A1 WO 1998005402A1 AU 9600442 W AU9600442 W AU 9600442W WO 9805402 A1 WO9805402 A1 WO 9805402A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- bed
- container
- liquid
- belt
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 51
- 238000000746 purification Methods 0.000 title claims abstract description 29
- 238000001914 filtration Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 239000003463 adsorbent Substances 0.000 claims abstract description 7
- 239000002808 molecular sieve Substances 0.000 claims abstract description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000706 filtrate Substances 0.000 claims description 26
- 238000011069 regeneration method Methods 0.000 claims description 16
- 230000008929 regeneration Effects 0.000 claims description 15
- 230000001419 dependent effect Effects 0.000 claims description 14
- 238000011403 purification operation Methods 0.000 claims description 13
- 239000000725 suspension Substances 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 8
- -1 bleaching earth Substances 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000004061 bleaching Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003456 ion exchange resin Substances 0.000 claims description 3
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000011149 active material Substances 0.000 claims 3
- 230000003213 activating effect Effects 0.000 claims 2
- 230000004913 activation Effects 0.000 claims 2
- 230000007420 reactivation Effects 0.000 claims 2
- 239000010425 asbestos Substances 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- 239000010451 perlite Substances 0.000 claims 1
- 235000019362 perlite Nutrition 0.000 claims 1
- 238000005498 polishing Methods 0.000 claims 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 1
- 229910052895 riebeckite Inorganic materials 0.000 claims 1
- 239000000356 contaminant Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000004576 sand Substances 0.000 abstract description 5
- 239000008187 granular material Substances 0.000 abstract description 4
- 239000013618 particulate matter Substances 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000002609 medium Substances 0.000 description 6
- 239000012065 filter cake Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000002156 adsorbate Substances 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012526 feed medium Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 235000014101 wine Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D41/00—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids
- B01D41/02—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids of loose filtering material
-
- 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
- B01D29/09—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 filtering bands, e.g. movable between filtering operations
- B01D29/096—Construction of filtering bands or supporting belts, e.g. devices for centering, mounting or sealing the filtering bands or the supporting belts
-
- 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
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
-
- 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
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/606—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
-
- 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
- B01D29/78—Handling the filter cake in the filter for purposes other than for regenerating for washing
-
- 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
- B01D29/84—Handling the filter cake in the filter for purposes other than for regenerating for drying by gases or by heating
- B01D29/843—Handling the filter cake in the filter for purposes other than for regenerating for drying by gases or by heating by direct contact with a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
-
- 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
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
- B01D37/041—Controlling the filtration by clearness or turbidity measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
- B01D37/046—Controlling the filtration by pressure measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/08—Regeneration of the filter
- B01D2201/088—Arrangements for killing microorganisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/20—Pressure-related systems for filters
- B01D2201/204—Systems for applying vacuum to filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/54—Computerised or programmable systems
Definitions
- This invention concerns apparatus for the purification of liquids.
- purification is meant the removal of unwanted suspended, colloidal or dissolved substances from a liquid.
- the prior art of apparatus to achieve this consists of a large variety of generically related filters that ulilize over-pressure and/or under pressure to provide the necessary pressure difference for filtration.
- filter presses or pressure leaf, candle and cartridge filters pressure vessels containing such elements
- Such liquids are chemicals, pharmaceutical products, beer, wine, sugar, oils and fats, petroleum products, etc.
- Their purification normally involves some form of "in-depth” filtration or purification process, whereby the liquid to be purified is either passed through or forms thereby a bed of particulatc purification aid whereby the separation mechanism is mostly a combination of sieving-action and adsorption.
- the purification aids that are used include diatomaceous earth (kieselguhr), bleaching earth, ion-exchange resin, activated carbon, etc. , all normally in powder form. The solid residues can rarely be regenerated and their disposal poses an acute environmental problem.
- the static nature of the beds is imsuited for the filtration of garticulate matter, as large sections of the bed remain unused and the necessity for utilizing relatively coarse granular material comprising the beds for removing organic and inorganic contaminants in solution precludes on economic grounds the possibility of utilizing the extensive range of available adsorbents comprising such materials as activated carbon, anthracite, ion-exchange resin, bleaching earth, molecular sieves, etc. required for removing specific contaminants in the field of effluent and water purification.
- the goal of this invention is to further develop the art and science of "in-depth" filtration utilizing beds of loose material for the purification of liquids such as processed by the
- the apparatus of the invention will be far more compact and versatile compared with the prior art in that it can be installed not only in large industrial and communal plants, but also in the medium to small size industrial sector. This will be achieved by utilizing specific through-puts 10-100 times those normally employed by prior art filters. Specific through-puts of 50-200 m 3 /m 2 .h will be possible because the beds will be maintained in an "open" condition throughout the filtration and/or purification cycles.
- a further goal of the invention is to provide the liquid purification apparatus of the invention with the means for automatically selecting and applying varying types and grades of filter media and modes of operation according to the nature, filtration characteristics and requirements of any type of liquid purification operation, wherby no further distinction will be made between effluent, water and process liquid purification.
- the ultimate aim of the invention is to reduce the number of purification steps presently required for process liquid purification, whereby waste generation will be reduced and the purification media regenerated and reused, thus enhancing the competitiveness of these industries and simultaneously relieving the present impact on the environment.
- the aim of the invention with industries presently using liquids in their production processes for such operations as plating, dyeing, washing, coating, pickling, quenching, etc. is to provide the means for continuous regeneration to avoid the necessity for dumping into the environment.
- Fig. l is a schematic flow-sheet of the apparatus of the invention that consists of a purifyiung filter plant 1, comprising essentially a lower stationary filtrate chamber 2 with a porous upper surface on which a section of an intermittently movable filter belt 4 is supported which in operation is stationary and sealed at the periphery by vertically movable dependent rim portions 3 of an upper contaminant container 5 fitted with a conically perforated feed distributor 27 extending over the entire upper horizontal section, a bed regeneration apparatus 6, a bed material storage/dosing vessel 7, a filter aid suspension tank 11, one or more adsorbent storage/dosing devices 8, a reservoir for liquid to be purified 10 and a residue filter 9.
- a purifyiung filter plant 1 comprising essentially a lower stationary filtrate chamber 2 with a porous upper surface on which a section of an intermittently movable filter belt 4 is supported which in operation is stationary and sealed at the periphery by vertically movable dependent rim portions 3 of an upper contaminant
- Filter aid suspended in liquid in tank 11 is dosed into the vented container 5. While the pressure difference between the container 5 and the lower filtrate chamber 2 is raised, liquid to be purified in reservoir 10, which may be dosed with flocculating
- SUBSTITUTE SHEET (Role 26) substances such as polyelectrolytes, is pumped using means 22 from reservoir 10 into container 5. Simultaneously, suspensions of bed material recycled from regenerator 6 and activated powdered adsorbents are dosed using means 7/20 & 8/19 under pressure to a mixing section 27 of the delivery conduit 12 controlled by microprocessor 15 from input data from instrumentation 14 and 13 in the delivery conduit 12 and the filtrate conduit 16 respectively.
- the liquid quality and process parameters (concentration) controlled include turbidity, pH, hardness, chlorinated organics, mineral oil, heavy metals, phosphates, nitrates, etc. as well as variables such as pressure difference and through-put.
- Filtrate is recycled, if necessary by means of a suction/vacuum pump (28), through conduits 16 & 17 to reservoir 10 until the concentration of contaminants in the filtrate is reduced to a set level as measured at 13. Filtrate flow is switched to conduit 18 whence it is collected in a reservoir not shown.
- pump 22 and all dosing apparatus are shut down and external gas is fed through conduit 23 to container 5 whereby the residual liquid in the chamber and bed is removed, after which the dependent rim portions 3 of container 5 are raised and the bed is transported by the filter belt 4 and discharged into the bed regenerator 6.
- the dependent rim portions 3 are lowered onto a fresh section of belt and the cycle described above is repeated.
- the regenerator 6, in effect, removes adsorbate and entrapped particulate matter (ultrasonics, turbulence, diffusion, etc.) from the internal and external surfaces of the granular material, which may be an adsorbent itself, thereby regenerating, cleaning and restoring the desired activities to these surfaces.
- Clean liquid is introduced to 6 through conduit 24 and by means of hydraulic classification action the adsorbate and particulate matter are removed through conduit 25 to filter 9 to recover a solid waste. Depending on its nature, the recovered fluid is recycled to 10 or reprocessed.
- Fig.2 is a schematic representation of a partly sectioned elevation of media feeding mechanisms of the invention.
- Prior art filters have the disadvantage that a replacement of filter media involves lengthy shut-down periods and often excessive manual manipulation.
- a further goal, therefore, of the present invention is to provide the means for automatically and quickly fitting a large variety of prefabricated materials (e.g. menbranes, paper, carton, etc.) to fulfill the requirements of the liquid processing industries.
- Pressure cylinders 215, normally taking the form of hydraulic or pneumatic rams are provided for actuating the dependent rim portions 3 of the filter container 5 in the vertical direction for bed removal and container closure.
- a plurality of rolls of filter media 209, 210 are provided for feeding sections onto the lower filtrate chamber 2.
- Drive rollers 220, 221 located on the surface of the media rolls and actuated by a brake/clutch mechanism 225 driven by the filter belt 217 through idle
- UBST ⁇ TUTE SfflBT (Role 2ti) r ⁇ llers 207 feed lengths of filter band over guides 223 into the rollers 207 onto the surface of the moving filter belt 217.
- Belt sensor 218 shuts down the belt drive motor 216 and actuates the band slitting mechanism 208 after which the section of filter medium and the supporting filter belt are finally positioned in the container 5 and the depending rim portions of the container are lowered to seal the periphery of said sections. After filtration the used sections of filter medium are normally transported out of the container 1 for disposal.
- Cassettes 212 located externally to the filter container 1 , are designed to feed pre-cut, pre-fabricated sheets of various types of filter media such as membranes, paper, carton, etc. into the filter container for filtration. Individual sheets are taken from the top of spring-loaded bundles 223 by means of actuated rubberized rollers 213 and fed on guides 224 to synchronously driven feeder belts 214, whereby after positioning on the porous upper surface of the filtrate chamber 2, the dependent rim portions 3 of the container 5 are lowered to seal both the belt and the overlying section of filter medium. After the filtration operation the material is transported out of the container 1 for disposal.
- Fig.3 is a sectioned drawing showing an improved method for ensuring that the dependent rims 3 when they take the form of peripheral, integral sides of the container 5 are actuated in the horizontal orientation when raised and lowered and that the full thrust of the fluid driven pistons in cylinders 215 is exerted when sealing the container 5 against the horizontal pervious base 2.
- the bodies of the cylinders 305 are fixed to an external load- bearing framework 306 with the external extremity of the lubricated shafts 307 connected to the lower ends of vertically sectioned cylindrical sleeves 301 extending and fixed at the top end to transverse beams 308 that in turn actuate thrust shafts 303 acting directly through seals onto the top peripheral part of the container 5.
- Annular sections of guiding plastic material 302, preferably out of polytetrafluorethyle ⁇ e, are fixed to the surface of the cylinders fitting into the space between the surface of the cylinders and the inner surface of the reciprocating sleeves 302.
- Fig.4 is a schematic representation of apparatus of the invention for:
- a typical procedure according to the invention for the filtration or purification of a quantity of liquid of unknown filtration characteristics is the following: A liquid is to be clarified, whereby the filtrate in the filter residue (cake) is to be recovered by a washing operation. The required degree of clarification in units of turbidity is known. This and other pertinent information are entered into the programmed microprocessor 15 and the following sequence of operations proceeds fully automatically: Start:
- a section of 10 micron retention filter paper from 212 is automatically fed into the filter container.
- the differential pressure controller 404 establishes a preset pressure differential between the chamber sealing space 402 and the filtrate chamber 403.
- Compressed gas is introduced to the top chamber through control valve 407, whereby the gas pressure and flow controllers 405/6 control and indirectly establish the filtration characteristics of the suspension by measuring the volumetric flow of gas in the top container 5.
- a sample of filtrate flows through a turbidity meter 410 to record the degree of clarity of the filtrate.
- the computer 15 chooses the filtration mode and type of medium:
- the 20 micron belt section is automatically positioned in the container 1.
- Steps 3,4,5 are repeated with a liquid of known filtration characteristics.
- Valve 401 shuts.
- Valve 407 opens. Gas forces rest suspension through the filter cake.
- Gas flow controller 406 signals a break-through of gas through the filter cake.
- the valve 408 opens. A pre-set quantity of wash liquid is fed to the container 5.
- Valve 408 shuts. Valve 407 opens. Gas forces wash liquid through the cake.
- the flow controller 406 signals a break-through of gas through the filter cake. 18. Cake drying.
- the valve 407 shuts. Container is vented by opening 411. Container opens.
- Fig.5 & 6 show a schematic representation of an innovative filtrate chamber 2 whereby the the fixed pervious bed of the prior art is replaced by manually removable pervious elements 502 to facilitate the cleaning and/or sterilization of the internal surfaces and drainage members 504.
- the filtrate chamber consists of a hollowed-out plate 505 with smooth polished upper surfaces on which the removable elements, preferably consisting of expanded sheets or layers of woven mesh of metal or plastics that are covered and integral with flat perforated sheet, mesh or profiled grid material.
- conduits 506 are provided, preferably coinciding with the intevals of the fluid driven cylinders 215, whereby the conduits are made integral with the supporting framework and designed to support the filtrate chamber as well as to withstand the thrust of the closure of the upper container. These conduits are also designed for ease of access and cleaning.
- Fig.7 shows a schematic drawing, wherein the filter web takes the form of a belt that is driven by a motor or actuator 702 to reverse the direction of transport of the belt to enable the discharge of the filter bed or filter cake at either end of the purifying apparatus 1.
- a motor or actuator 702 to reverse the direction of transport of the belt to enable the discharge of the filter bed or filter cake at either end of the purifying apparatus 1.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/AU1996/000442 WO1998005402A1 (en) | 1996-08-05 | 1996-08-05 | Apparatus for liquid purification |
AU65089/96A AU6508996A (en) | 1996-08-05 | 1996-08-05 | Apparatus for liquid purification |
GBGB9902180.0A GB9902180D0 (en) | 1996-08-05 | 1999-02-01 | Apparatus for liquid purification |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/AU1996/000442 WO1998005402A1 (en) | 1996-08-05 | 1996-08-05 | Apparatus for liquid purification |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998005402A1 true WO1998005402A1 (en) | 1998-02-12 |
Family
ID=3764287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1996/000442 WO1998005402A1 (en) | 1996-08-05 | 1996-08-05 | Apparatus for liquid purification |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU6508996A (en) |
GB (1) | GB9902180D0 (en) |
WO (1) | WO1998005402A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1055448A2 (en) * | 1999-05-27 | 2000-11-29 | Sanyo Electric Co., Ltd. | Method of filtering a fluid |
EP1128889A1 (en) * | 1998-10-05 | 2001-09-05 | Carlton And United Breweries Limited | Controlling the supply of bodyfeed to a filter |
US6299513B1 (en) | 1999-05-27 | 2001-10-09 | Sanyo Electric Co., Ltd. | Method of fabricating a semiconductor device |
US6406622B1 (en) | 1999-05-27 | 2002-06-18 | Sanyo Electric Co., Ltd. | Apparatus for filtering a fluid |
US6428709B1 (en) | 1999-05-27 | 2002-08-06 | Sanyo Electric Co., Ltd. | Method of filtering a fluid |
US6461524B1 (en) | 1999-05-27 | 2002-10-08 | Sanyo Electric Co., Ltd. | Method of filtering a fluid |
WO2005007270A1 (en) | 2003-06-16 | 2005-01-27 | Benesi Steve C | Slurry filtration system and apparatus |
DE112008004043T5 (en) | 2007-09-10 | 2013-03-21 | Peter Anthony Miller | Methods and systems of total capture and recovery of used organic and inorganic matter from self-sustaining human settlements |
WO2017013301A1 (en) * | 2015-07-22 | 2017-01-26 | Josep Sais Mascort | Control system for a fluid filter |
CN109626452A (en) * | 2018-11-02 | 2019-04-16 | 深圳安吉尔饮水产业集团有限公司 | Method for determining dosage and particle size of filter element active carbon and application thereof |
EP3948220A4 (en) * | 2019-03-27 | 2022-11-30 | Monash University | A microparticle and/or nanoparticle separation, filtration and/or enriching device and method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110665279B (en) * | 2019-10-22 | 2021-09-10 | 宁波碧城生态科技有限公司 | Solid garbage carried in flowing water filters recovery unit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB876722A (en) * | 1958-12-12 | 1961-09-06 | Hirs Gene | Filter apparatus |
GB1058530A (en) * | 1964-11-13 | 1967-02-15 | Hirs Gene | An improved method of filtration |
-
1996
- 1996-08-05 WO PCT/AU1996/000442 patent/WO1998005402A1/en active Application Filing
- 1996-08-05 AU AU65089/96A patent/AU6508996A/en not_active Abandoned
-
1999
- 1999-02-01 GB GBGB9902180.0A patent/GB9902180D0/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB876722A (en) * | 1958-12-12 | 1961-09-06 | Hirs Gene | Filter apparatus |
GB1058530A (en) * | 1964-11-13 | 1967-02-15 | Hirs Gene | An improved method of filtration |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1128889A1 (en) * | 1998-10-05 | 2001-09-05 | Carlton And United Breweries Limited | Controlling the supply of bodyfeed to a filter |
US6589430B1 (en) | 1998-10-05 | 2003-07-08 | Carlton And United Breweries | Controlling the supply of bodyfeed to a filter |
EP1128889A4 (en) * | 1998-10-05 | 2002-08-28 | Carlton & United Breweries | Controlling the supply of bodyfeed to a filter |
EP1055447A3 (en) * | 1999-05-27 | 2001-05-16 | Sanyo Electric Co., Ltd. | Method of filtering a fluid |
EP1055447A2 (en) * | 1999-05-27 | 2000-11-29 | Sanyo Electric Co., Ltd. | Method of filtering a fluid |
EP1055446A3 (en) * | 1999-05-27 | 2001-05-16 | Sanyo Electric Co., Ltd. | Method of fabricating a semiconductor device with process liquid recycling |
EP1055448A2 (en) * | 1999-05-27 | 2000-11-29 | Sanyo Electric Co., Ltd. | Method of filtering a fluid |
EP1055445A3 (en) * | 1999-05-27 | 2001-08-29 | Sanyo Electric Co., Ltd. | Apparatus for filtering a fluid |
EP1055446A2 (en) * | 1999-05-27 | 2000-11-29 | Sanyo Electric Co., Ltd. | Method of fabricating a semiconductor device with process liquid recycling |
US6299513B1 (en) | 1999-05-27 | 2001-10-09 | Sanyo Electric Co., Ltd. | Method of fabricating a semiconductor device |
US6406622B1 (en) | 1999-05-27 | 2002-06-18 | Sanyo Electric Co., Ltd. | Apparatus for filtering a fluid |
US6428709B1 (en) | 1999-05-27 | 2002-08-06 | Sanyo Electric Co., Ltd. | Method of filtering a fluid |
EP1055445A2 (en) * | 1999-05-27 | 2000-11-29 | Sanyo Electric Co., Ltd. | Apparatus for filtering a fluid |
US6461524B1 (en) | 1999-05-27 | 2002-10-08 | Sanyo Electric Co., Ltd. | Method of filtering a fluid |
EP1055448A3 (en) * | 1999-05-27 | 2001-05-16 | Sanyo Electric Co., Ltd. | Method of filtering a fluid |
WO2005007270A1 (en) | 2003-06-16 | 2005-01-27 | Benesi Steve C | Slurry filtration system and apparatus |
EP1648587A1 (en) * | 2003-06-16 | 2006-04-26 | BENESI, Steve C. | Slurry filtration system and apparatus |
EP1648587A4 (en) * | 2003-06-16 | 2007-04-04 | Steve C Benesi | Slurry filtration system and apparatus |
US7674386B2 (en) | 2003-06-16 | 2010-03-09 | Flsmidth A/S | Slurry filtration system and apparatus |
DE112008004043T5 (en) | 2007-09-10 | 2013-03-21 | Peter Anthony Miller | Methods and systems of total capture and recovery of used organic and inorganic matter from self-sustaining human settlements |
WO2017013301A1 (en) * | 2015-07-22 | 2017-01-26 | Josep Sais Mascort | Control system for a fluid filter |
CN109626452A (en) * | 2018-11-02 | 2019-04-16 | 深圳安吉尔饮水产业集团有限公司 | Method for determining dosage and particle size of filter element active carbon and application thereof |
CN109626452B (en) * | 2018-11-02 | 2021-09-24 | 深圳安吉尔饮水产业集团有限公司 | Method for determining dosage of filter element active carbon and application thereof |
EP3948220A4 (en) * | 2019-03-27 | 2022-11-30 | Monash University | A microparticle and/or nanoparticle separation, filtration and/or enriching device and method |
Also Published As
Publication number | Publication date |
---|---|
AU6508996A (en) | 1998-02-25 |
GB9902180D0 (en) | 1999-03-24 |
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