WO2007119957A1 - Système de filtrage fin - Google Patents

Système de filtrage fin Download PDF

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Publication number
WO2007119957A1
WO2007119957A1 PCT/KR2007/001742 KR2007001742W WO2007119957A1 WO 2007119957 A1 WO2007119957 A1 WO 2007119957A1 KR 2007001742 W KR2007001742 W KR 2007001742W WO 2007119957 A1 WO2007119957 A1 WO 2007119957A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
cylindrical member
filtering apparatus
pipeline
filter media
Prior art date
Application number
PCT/KR2007/001742
Other languages
English (en)
Inventor
Gi-Baek Han
Hu-Soo Kim
Jung-In Koo
Hae-Bum Lee
Shin-Gyung Kang
Sung-Chul Choi
Original Assignee
Nanoentech Co., 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 Nanoentech Co., Ltd filed Critical Nanoentech Co., Ltd
Publication of WO2007119957A1 publication Critical patent/WO2007119957A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/004—Processes for the treatment of water whereby the filtration technique is of importance using large scale industrial sized filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/04—Combinations of filters with settling tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • 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
    • B01D29/114—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 arranged for inward flow 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
    • B01D29/11—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
    • B01D29/31—Self-supporting filtering elements
    • B01D29/33—Self-supporting filtering elements arranged for inward flow 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
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6438—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/10—Brush filters ; Rotary brush filters
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/003—Coaxial constructions, e.g. a cartridge located coaxially within another
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage

Definitions

  • the present invention relates to a fine filtering system and more particularly, to a fine filtering system having improved structure for efficient treatment of suspended solids, algae, fine particles and the like, which remain in river water, ground water, surface water, and drinking water.
  • the conventional water purification process is performed using a filtration process after condensing and precipitating the contaminants and this has been done for more than 100 years.
  • a slow filtration process (filtration rate of 5 ⁇ lOm/d) among the filtration processes of the water purification process is applied to surface water in which the water quality thereof is relatively good and is performed by adsorption and a chemical reaction of a biological membrane within a sand layer.
  • a relatively slow filtration rate of the slow filtration process makes it almost impossible to cope with rapidly increasing population and water pollution and thus, an introduction of a rapid filtration process is essential. Disclosure of Invention Technical Problem
  • the present invention provides a fine filtering system having a simplified structure to reduce installation costs of the system.
  • the present invention also provides a fine filtering system to reduce time required for a filtration process and thus, the efficiency of the process is increased.
  • a chemical mixing pipeline which forms a part of a source water inlet pipeline condenses suspended solids remaining in source water and thus, the suspended solids become larger. Since the large suspended solid particles are filtered using a filter media disposed in a filtering apparatus, large facilities, such as a condensing tank, are not required, thereby reducing installation costs. Also, filtering time is reduced, resulting in an increase in filtration efficiency.
  • the filtering system according to the present invention can be installed in a small space, resulting in a reduction of installation costs. Also, filtering time is reduced, resulting in an increase in filtration efficiency.
  • FlG. 1 is an overall view schematically illustrating a fine filtering system according to an embodiment of the present invention
  • FlG. 2 is a front view of a filtering apparatus used in the fine filtering system of FlG.
  • FlG. 3 is a cross sectional view of the filtering apparatus of FlG. 2 according to an embodiment of the present invention
  • FlG. 4 is a cross sectional view of the filtering apparatus of FlG. 3 taken along a line
  • FlG. 5 is a cross sectional view of the filtering apparatus of FlG. 3 taken along a line
  • FlG. 6 is a cross sectional view of the filtering apparatus of FlG. 3 taken along a line VI - VI in FIG. 3;
  • FIG. 7 is a perspective view of a chemical mixing pipeline used according to an embodiment of the present invention.
  • FIG. 8 is a view showing fluid flow during a filtration process in the filtering apparatus according to an embodiment of the present invention.
  • FIG. 9 is a view showing fluid flow during a washing process in the filtering apparatus, whereby flexible fibers are washed, according to an embodiment of the present invention.
  • FIG. 10 is a view showing fluid flow during a washing process in the filtering apparatus, whereby re-filter media is washed, according to an embodiment of the present invention.
  • FIG. 11 is a cross sectional view of a filtering apparatus used according to another embodiment of the present invention. Best Mode
  • FIG. 1 is an overall view schematically illustrating a fine filtering system according to an embodiment of the present invention
  • FIG. 2 is a front view of a filtering apparatus used in the fine filtering system of FIG. 1 according to an embodiment of the present invention
  • FIG. 3 is a cross sectional view of the filtering apparatus of FIG. 2 according to an embodiment of the present invention
  • FIG. 4 is a cross sectional view of the filtering apparatus of FIG. 3 taken along a line IV - IV in FIG. 3
  • FIG. 5 is a cross sectional view of the filtering apparatus of FIG. 3 taken along a line V - V in FIG. 3
  • FIG. 6 is a cross sectional view of the filtering apparatus of FIG. 3 taken along a line VI - VI in FIG. 3
  • FIG. 7 is a perspective view of a chemical mixing pipeline used according to an embodiment of the present invention
  • a fine filtering system includes a filtering apparatus 100, a chemicals storage tank 190, and a re- filtering apparatus 140.
  • the filtering apparatus 100 is connected to a source water tank 1 through a source water inlet pipeline 3 and includes a filter media in the filtering apparatus 100.
  • the filtering apparatus 100 produces filtered water by filtering source water flowing into the filtering apparatus 100 via the source water inlet pipeline 3 using the filter media.
  • the filtering apparatus 100 is formed of an outer cylindrical member 110, an inner cylindrical member 120, a filtered water discharge pipeline 125, a lower ring pipeline 130, and the filter media.
  • the outer cylindrical member 110 is a hollow cylinder and has a number of source water inlet holes HOA which penetrate an inner surface and an outer surface of the outer cylindrical member 110.
  • the source water inlet holes 11OA are disposed in the lower part of the outer cylindrical member 110 in order for source water, which is supplied from outside, to flow into the outer cylindrical member 110.
  • the 'outside' refers to the source water tank 1.
  • the source water tank 1 contains source water which needs to be purified.
  • the outer cylindrical member 110 is connected to the source water tank 1 through the source water inlet pipeline 3.
  • source water can evenly flow into the outer cylindrical member 110 through the source water inlet holes 11OA.
  • an air inlet 111 which is connected to a first air inlet pipeline 11, is disposed in the lower part of the outer cylindrical member 110 according to an embodiment of the present invention.
  • the inner cylindrical member 120 is disposed in an inner center of the outer cylindrical member 110.
  • the inner cylindrical member 120 is a hollow cylinder and has a number of filtered water inlet holes 120A which penetrate an inner surface and an outer surface of the inner cylindrical member 120.
  • the filtered water inlet holes 120A disposed in the lowermost part of the inner cylindrical member 120 may be disposed lower than the source water inlet holes 11OA disposed in the uppermost part of the outer cylindrical member 110.
  • the filter media is interposed between the outer cylindrical member 110 and the inner cylindrical member 120.
  • the filter media filters source water flowing through the source water inlet holes 11OA. That is, source water becomes filtered water after suspended solids and fine particles are captured using the filter media. This filtered water flows into the inner cylindrical member 120 through the filtered water inlet holes 120A disposed in the inner cylindrical member 120.
  • the filter media according to an embodiment of the present invention is formed of a number of flexible fibers 170.
  • the flexible fibers 170 have appropriate surface roughness, flexibility, and elasticity.
  • the thickness of the flexible fibers 170 is adjustable according to the size of suspended solids to be removed from the water.
  • the lower part of the flexible fibers 170 is installed by being fixed at a number of fiber fixing holes 180A disposed in a fixing plate 180 and the upper part of the flexible fibers 170 is not fixed so as to maintain the fibers' flexibility.
  • the lower ring pipeline 130 is disposed in the lower outer part of the outer cylindrical member 110 to surround the source water inlet holes 11OA, and an annular internal space 130' for connecting the source water inlet holes 11OA is formed in the lower ring pipeline 130.
  • the lower ring pipeline 130 comprises a source water inlet 130A for source water to flow into the internal space 130'.
  • the source water inlet 130A is a portion of the lower ring pipeline 130, which joins the source water inlet pipeline 3 providing a moving path for source water contained in the source water tank 1 and a first washing water inlet pipeline 8 providing a moving path for washing water.
  • the washing water washes the flexible fibers 170.
  • the lower ring pipeline 130 makes source water, which has flowed in through the source water inlet 130A, flow evenly into the outer cylindrical member 110 and improves the efficiency of filtration of the source water.
  • Source water which has flowed into the outer cylindrical member 110 via the lower ring pipeline 130 is filtered using the flexible fibers 170. Then, filtered source water is made to flow into the inner cylindrical member 120 and is discharged out of the outer cylindrical member 110 via filtered water discharge pipelines 125.
  • One end part of the filtered water discharge pipelines 125 is joined to the inner cylindrical member 120 and the other end part thereof penetrates the side portion of the outer cylindrical member 110 in a direction along its diameter, so as to discharge filtered water after passing through the flexible fibers 170 out of the side of the outer cylindrical member 110.
  • the discharged filtered water flows into the re-filtering apparatus 140 through a connection pipeline 4.
  • a first washing water inlet pipeline 8 which is connected to the source water inlet 130A and a first washing water discharge pipeline 12 which is connected to the first washing water outlet 112 may be disposed.
  • the first washing water inlet pipeline 8 separates suspended solids adsorbed in the flexible fibers 170 in the outer cylindrical member 110 and provides a moving path for washing water to wash the flexible fibers 170.
  • the first washing water discharge pipeline 12 is used to discharge washing water, used to wash the flexible fibers 170, to the outside.
  • the washing water may be treated water contained in a water treatment tank 6.
  • a first air inlet pipeline 11 is connected to the air inlet 111.
  • the first air inlet pipeline 11 is connected to the air inlet 111.
  • the 'air' refers to compressed air compressed using an air compressor 9.
  • the compressed air is contained in an air storage tank 10 and is made to flow into the air inlet 111 through the first air inlet pipeline 11, when a fifth valve V5 is opened.
  • the compressed air in the air inlet 111 flows into a space between the outer cylindrical member 110, in which the flexible fibers 170 are disposed, and the inner cylindrical member 120, through air inlet holes 180B disposed in a fixing plate 180 and thus, turbulence occurs in the outer cylindrical member 110. Accordingly, separation of suspended solids adsorbed into the flexible fibers 170 is accomplished due to the turbulence which occurs.
  • first washing water inlet pipeline 8 may be connected to the source water inlet 130A attached at the lower ring pipeline 130, the first air inlet pipeline 11 may be connected to the lower part of the outer cylindrical member 110, and the first washing water discharge pipeline 12 may be connected to the upper part of the outer cylindrical member 110. Subsequently, a washing process is performed in a same direction as the filtration direction of source water and thus, the efficiency of washing the flexible fibers 170 is increased.
  • the re-filtering apparatus 140 will now be described.
  • the re-filtering apparatus 140 is combined with the filtering apparatus 100 and a re-filtering media is disposed in the re-filtering apparatus 140.
  • the re-filtering apparatus 140 is a hollow cylinder and is disposed to surround the filtering apparatus 100. In addition, a fluid flowing space 140', in which the re-filtering media is disposed, is interposed between the re-filtering apparatus 140 and the filtering apparatus 100.
  • filtered water discharged from the filtering apparatus 100 after being filtered by the flexible fibers 170 is made to flow into the fluid flowing space 140'. Then, the filtered water which flows into the fluid flowing space 140' becomes treated water to be used for water supply after passing through the re-filtering media.
  • an activated carbon 141 is used as the re-filtering media.
  • An inlet 140A, an access point 140B used when replacing activated carbon, and a treated water outlet 140C are disposed in the lower part of the re-filtering apparatus 140.
  • a plurality of washing water discharge holes 140D are disposed in the upper part of the re-filtering apparatus 140 to connect the fluid flowing space 140' and an internal space 160' which will be described below.
  • flow preventing members 150 are attached to the washing water discharge holes 140D to prevent the activated carbon 141 from being discharged to the internal space 160' through the washing water discharge holes 140D.
  • the flow preventing members 150 are formed as a type of mesh, preventing a discharge of activated carbon with large particles while allowing the discharge of the washing water.
  • an upper ring pipeline 160 may also be disposed to surround the upper outer part of the re-filtering apparatus 140, and an annular internal space 160' for connecting with the fluid flowing space 140' is formed in the upper ring pipeline 160.
  • the upper ring pipeline 160 comprises a second washing water outlet 160A which is connected to the internal space 160'.
  • the second washing water outlet 160A is a portion of the upper ring pipeline 160, which joins with a second washing water discharge pipeline 16 for discharging washing water.
  • the upper ring pipeline 160 makes washing water, which has flowed into the fluid flowing space 140', flow evenly into the internal space 160' and thus, prevents a large amount of washing water from being discharged through the second washing water outlet 160A at any given time.
  • the chemicals storage tank 190 is used to store chemicals which are used to condensate the suspended solids in the source water flowing into the filtering apparatus 100 from the source water tank 1.
  • the chemicals stored in the chemicals storage tank 190 are injected into the chemical mixing pipeline 195 through a chemical supply pipeline 15, when a second pump 7 is operated.
  • Examples of the chemicals used are PAC (poly aluminum chloride) and HiBPAHCS.
  • the chemical mixing pipeline 195 has a tubular shape.
  • the condensing process which condenses suspended solids remaining in the source water and chemicals injecting from the chemicals storage tank 200, is performed in the chemical mixing pipeline 195.
  • a plurality of spiral wings 195 A is disposed in the chemical mixing pipeline 195 along its extending direction.
  • the spiral wings 195 A mix and stir source water and chemicals which have been made to flow into the chemical mixing pipeline 195.
  • the chemical mixing pipeline 195 is disposed to connect one side of the source water inlet pipeline 3 and condenses suspended solids remaining in the source water and chemicals, after mixing and stirring the source water and chemicals therein.
  • the source water which has passed through the chemical mixing pipeline 195 has su spended solids with large particles due to the condensing process, flows into the outer cylindrical member 110 through the source water inlet 130A.
  • Source water which has flowed into the outer cylindrical member 110 is filtered using the flexible fibers 170 and thus becomes filtered water.
  • the filtered water becomes treated water after filtering by activated carbon 141.
  • V3 are opened and fourth, fifth, sixth, seventh, eighth, and ninth valves V3,V4,V5,V6,V7,V8, and V9 are closed.
  • source water contained in the source water tank 1 flows into the source water inlet 130A through the source water inlet pipeline 3.
  • the chemical mixing pipeline 195 is disposed to condense suspended solids remaining in the source water and chemicals injecting from the chemicals storage tank 190 therein. Due to the condensing process, suspended solids become larger.
  • the plurality of spiral wings 195 A disposed in the chemical mixing pipeline 195, stirs and mixes the source water and chemicals rapidly and smoothly.
  • the source water flowing into the outer cylindrical member 110 is filtered by the filter media which is formed of a number of flexible fibers 170 and thus becomes filtered water, and the filtered water is made to flow into the inner cylindrical member 120 through the filtered water inlet holes 120A. Then, filtered water flows into the fluid flowing space 140', interposed between the outer cylindrical member 110 and the re-filtering apparatus 140, through the filtered water discharge pipeline 125 which is connected to the upper part of the inner cylindrical member 120.
  • Filtered water which flows into the fluid flowing space 140' is re-filtered using the re-filter media such as activated carbon 141 and thus becomes treated water to be used for water supply. Then, this treated water is contained in the water treatment tank 6 through a treated water transportation pipeline 5 and can be used in various ways such as for drinking water.
  • the re-filter media such as activated carbon 141
  • the lower ring pipeline 130 is disposed to surround the lower part of the outer cylindrical member 110 and thus, source water smoothly flows into the outer cylindrical member 110, resulting in an increase of filtration efficiency.
  • the fine filtering system according to an embodiment of the present invention can be installed in a small space. Also, as filtered water in the filtering apparatus 100 is immediately re-filtered in the re- filtering apparatus 140 instead of being transported for a long time, re-filtering time for filtered water is reduced, resulting in an increase of filtration efficiency.
  • the filtered water inlet holes 120A disposed in the lowermost part of the inner cylindrical member 120, are disposed in the inner center of the outer cylindrical member 110 lower than the source water inlet holes 11OA disposed in the uppermost part of the outer cylindrical member 110 and thus, source water flowing into the lower part of the outer cylindrical member 110 flows directly into the lower part of the inner cylindrical member 120 after passing through the flexible fibers 170. Therefore, in the present invention, the filtration rate is increased and filtration resistance is reduced, resulting in an increase of filtration efficiency.
  • a washing process is performed to wash the flexible fibers 170 and the activated carbon 141.
  • a washing process to wash the flexible fibers 170 refers to a washing process 1 and a washing process to wash the activated carbon 141 refers to a washing process 2.
  • first, second, third, seventh, eighth, and ninth valves Vl, V2, V3, V7, V8, and V9 are closed, the sixth valve V6 is opened, and fourth and fifth valves V4 and V5 are alternatively opened and closed.
  • treated water for water supply contained in the water treatment tank 6 is used as washing water.
  • washing water and compressed air are alternatively made to flow into the space between the cylindrical member 110 and the inner cylindrical member 120 and thus, a larger turbulence occurs in the space. Therefore, shear force is generated by the turbulence and separation of suspended solids captured by the flexible fibers 170 is accomplished in a short time.
  • the suspended solids separated from the flexible fibers 170 are mixed with washing water to become a concentrated solution and the solution is discharged outside through the first washing water discharge pipeline 12.
  • washing water may be treated water to be used for water supply contained in the water treatment tank 6 but source water also can be used as washing water.
  • the flexible fibers 170 are disposed in the space between the outer cylindrical member 110 and the inner cylindrical member 120 and thus, separated suspended solids cannot flow into the inner cylindrical member 120 after washing the flexible fibers 170. Accordingly, when the filtration process is performed after the washing process 1 is completed, the suspended solids are prevented from flowing into the water treatment tank 6 after suspended solids flow into the inner cylindrical member 120.
  • washing water and compressed air used to wash the flexible fibers 170 are made to flow into the lower part of the outer cylindrical member 110 and are discharged to outside through the first washing water outlet 112 disposed in the upper part of the outer cylindrical member 110. Subsequently, in the washing process 1, fluid resistance is reduced and fluid velocity is increased, thereby improving the efficiency of the washing process.
  • the system is designed so that filtered water flowing into the inner cylindrical member 120 discharges in a lateral direction from the upper part of the outer cylindrical member 110.
  • first, second and third valves V1,V2, and V3, and fourth, fifth, and sixth valves V4,V5,and V6 are closed, the ninth valve V9 is opened, and seventh and eighth valves V7 and V8 are alternatively opened and closed.
  • washing water and compressed air are alternatively made to flow into the fluid flowing space 140' and thus, a larger turbulence occurs in the fluid flowing space 140'. Therefore, shear force is generated by the turbulence and separation of suspended solids captured by the activated carbon 141 is accomplished in a short time
  • the second washing water inlet pipeline 13 and the second air inlet pipeline 14 are connected to the lower part of the re-filtering apparatus 140.
  • the second washing water discharge pipeline 16 is connected to the upper part of the re-filtering apparatus 140 and thus, the efficiency of the washing process 2 is increased.
  • FlG. 11 is a cross sectional view of a filtering apparatus used according to another embodiment of the present invention.
  • a cylindrical shaped re-filtering apparatus 240 is disposed in the lower part of a filtering apparatus 200 and the upper ring pipeline 160 is not disposed in the filtering apparatus 200.
  • the rest of the constitution and basic function are similar to the embodiment described above and thus, a detailed description is omitted here.
  • reference numerals 230A, 211, 212, 240A, 240B, and 240C refer to a source water inlet which made source water flow in, an air inlet which compressed air that has flowed in, a first washing water outlet used in a washing process 1, an inlet in which washing water and air are used in a washing process 2, an access point used when replacing activated carbon, and a treated water outlet, respectively.
  • filtering can be performed using an activated carbon in the re-filtering apparatus 140 according to an embodiment of the present invention.
  • a membrane can be used in filtering as a re-filtering apparatus.
  • a filtering process using a membrane is known as membrane filtration. The membrane filtration removes contaminants remaining in water using a membrane having micro pores which can separate specific sized substances.
  • Examples of the membrane used in the membrane filtration are a tubular type membrane, a hollow fiber membrane and the like.
  • the tubular type membrane is a membrane module in which a tubular membrane having a tubular shape in a bundle is disposed in a porous supporting tube formed of a stainless metal, ceramic, or plastic.
  • sand can be used in filtering as the re-filtering apparatus.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

La présente invention concerne un système de filtrage fin qui permet de réduire le temps nécessaire à l'exécution d'un processus de filtrage et ainsi d'augmenter le rendement du processus. Un aspect de l'invention se rapporte à un système de filtrage fin comprenant : un dispositif de filtrage auquel est relié un réservoir d'eau de source par une conduite d'entrée d'eau de source, et dans lequel est disposé un agent de filtrage qui sert à filtrer l'eau de source qui circule par la conduite d'entrée d'eau de source pour permettre l'obtention d'eau filtrée; un réservoir de stockage de produits chimiques dans lequel sont stockés des produits chimiques utilisés pour réaliser la condensation d'éléments solides restant en suspension dans l'eau de source, l'eau de source circulant dans le dispositif de filtrage depuis le réservoir d'eau de source; et un dispositif de refiltrage auquel le dispositif de filtrage est combiné, et dans lequel se trouve un agent de refiltrage qui sert à réaliser un nouveau filtrage de l'eau filtrée issue du dispositif de filtrage, et ainsi à fournir de l'eau traitée à utiliser pour l'alimentation en eau.
PCT/KR2007/001742 2006-04-13 2007-04-11 Système de filtrage fin WO2007119957A1 (fr)

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KR1020060033524A KR100654300B1 (ko) 2006-04-13 2006-04-13 정밀여과시스템
KR10-2006-0033524 2006-04-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2010303A1 (fr) * 2006-04-13 2009-01-07 Nanoentech Co., Ltd. Dispositif de filtrage fin comprenant un module de filtrage a fibres flexibles
FR2934258A1 (fr) * 2008-07-28 2010-01-29 Otv Sa Procede de traitement d'eau ultra rapide et installation correspondante.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101272805B1 (ko) * 2011-01-26 2013-06-10 정순우 디스크 적층형 여과장치용 여과 디스크 및 디스크 적층형 여과장치를 구비한 수처리 장치
KR101782631B1 (ko) 2017-07-20 2017-09-27 더죤환경기술(주) 가압부상조와 분리막을 일체화한 수처리장치

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