CN108349757A - Membrane filter unit and method for treating water - Google Patents
Membrane filter unit and method for treating water Download PDFInfo
- Publication number
- CN108349757A CN108349757A CN201680065007.9A CN201680065007A CN108349757A CN 108349757 A CN108349757 A CN 108349757A CN 201680065007 A CN201680065007 A CN 201680065007A CN 108349757 A CN108349757 A CN 108349757A
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- Prior art keywords
- filter unit
- membrane
- component
- membrane filter
- framework
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- 239000012528 membrane Substances 0.000 title claims abstract description 303
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229920005989 resin Polymers 0.000 claims description 41
- 239000011347 resin Substances 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 30
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 30
- 239000004800 polyvinyl chloride Substances 0.000 claims description 30
- 239000010802 sludge Substances 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 9
- 239000000835 fiber Substances 0.000 abstract description 123
- 238000003825 pressing Methods 0.000 description 21
- 239000012510 hollow fiber Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 15
- -1 polyene Hydrocarbon Chemical class 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 12
- 229910001220 stainless steel Inorganic materials 0.000 description 11
- 239000010935 stainless steel Substances 0.000 description 11
- 235000012489 doughnuts Nutrition 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- 229910052719 titanium Inorganic materials 0.000 description 8
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 7
- 239000000806 elastomer Substances 0.000 description 7
- 239000011737 fluorine Substances 0.000 description 7
- 229910052731 fluorine Inorganic materials 0.000 description 7
- 238000005374 membrane filtration Methods 0.000 description 7
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 6
- 238000004026 adhesive bonding Methods 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 229920000098 polyolefin Polymers 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 description 4
- 229920002943 EPDM rubber Polymers 0.000 description 3
- 101150026858 VP30 gene Proteins 0.000 description 3
- 238000005273 aeration Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000010842 industrial wastewater Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000004425 Makrolon Substances 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 150000004651 carbonic acid esters Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004727 Noryl Substances 0.000 description 1
- 229920001207 Noryl Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006124 polyolefin elastomer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000008223 sterile water Substances 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
- C02F3/1273—Submerged membrane bioreactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/06—External membrane module supporting or fixing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/20—Specific housing
- B01D2313/203—Open housings
- B01D2313/2031—Frame or cage-like structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/20—Specific housing
- B01D2313/206—Specific housing characterised by the material
- B01D2313/2061—Organic, e.g. polymeric material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2315/00—Details relating to the membrane module operation
- B01D2315/06—Submerged-type; Immersion type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/18—Use of gases
- B01D2321/185—Aeration
Abstract
A kind of miniaturization achievable compared with previous membrane filter unit and cost effective membrane filter unit, and the method for treating water using the membrane filter unit are provided.A kind of membrane filter unit (1), has：More hollow fibre membrane components (2), fixed more hollow fibre membrane components (2) framework (3) and be connected to the diffuser (4) of framework (3) lower part；At least part (pillar (40) and inlet manifold (60)) of framework (3) also serves as the air inlet pipe to diffuser (4) supply gas；Use its method for treating water.
Description
Technical field
The present invention relates to membrane filter unit and method for treating water
The present invention is based on the application Patent 2015-220574 CLAIM OF PRIORITYs that on November 10th, 2015 proposes in Japan, herein
Quote its content.
Background technology
Include various waste water (industrial wastewater, the life of organic matter, microorganism (bacterium etc.) and their remains etc. as processing
Waste water living etc.) method, it is known to membrane separation activated sludge process, by waste water in activated sludge sink by activated sludge into
Row biochemical treatment, and be separated by solid-liquid separation sludge and processing water by being impregnated in the membrane filter unit in activated sludge sink.
As membrane filter unit, it is known to have：Internal arrangement has the hollow-fibre membrane group of more hollow fibre membrane components
The membrane filtration of the air diffusion apparatus (for example, with reference to patent document 1) of the more diffusers of part, configuration below hollow fiber film assembly
Unit.
Background technology document
Patent document
Patent document 1：Japanese Patent Laid-Open 2007-152179 bulletins
Invention content
The subject that the invention solves
In previous membrane filter unit, hollow fiber film assembly and air diffusion apparatus make respectively.Therefore, doughnut
The framework of membrane module needs to be connected with screw bolt and nut with the framework of air diffusion apparatus.In order to connect framework and framework, need to be used for
Be arranged the residue position of the coupling part in each framework by bolt, the effort for squeezing into bolt hole on the connection portion,
And the effort of the operation for connecting framework and framework.Therefore, membrane filter unit becomes larger, and the manufacturing cost of membrane filter unit
It gets higher.
In addition, in previous membrane filter unit, need that the air inlet for the diffuser supply gas to air diffusion apparatus is in addition arranged
Pipe.Air inlet pipe is arranged in framework for being fixed on hollow fiber film assembly with U-bolt etc. in the outside of each framework etc..Therefore, contain
There is the space needed for the setting of the hollow fiber film assembly of air inlet pipe to become more.Further, since component increase, manufacturing cost into
One step improves.
The present invention provides a kind of membrane filter unit, and miniaturization and low cost can be achieved compared with previous membrane filter unit
Change.
The means to solve the problem
The present invention includes mode below.
[1] a kind of membrane filter unit, has：
Multiple membrane components,
Keep the multiple membrane component framework and
The diffuser being connect with the lower part of the framework；
At least part of the framework also serves as the air inlet pipe to the diffuser supply gas.
[2] according to the membrane filter unit described in [1], the framework has the clamping membrane component, matches in substantially vertical direction
2 longitudinal components set,
At least part of the longitudinal component also serves as the air inlet pipe to the diffuser supply gas.
[3] according to the membrane filter unit described in [1] or [2], the framework has the clamping membrane component, in substantially vertical direction
2 longitudinal components of configuration,
The longitudinal component has the guide part for substantially vertical direction by membrane component guiding.
[4] according to the membrane filter unit described in any one of [1]~[3], by the film packed density that lower formula (I) is found out be 150~
350m2/m2,
[number 1]
Wherein, D is film packed density, and n is the quantity of the membrane component configured on membrane filter unit, EiFor the film of i-th of membrane component
Surface area, U are the area being arranged needed for membrane filter unit.
[5] membrane filter unit according to any one of [1]~[4], the framework have the clamping membrane component, substantially
2 longitudinal components of vertical direction configuration,
At least part material of the longitudinal component is resin.
[6] according to the membrane filter unit described in [5], the resin is polyvinyl chloride resin.
[7] membrane filter unit according to any one of [1]~[6], the framework have：The membrane component is clamped, big
2 longitudinal components of vertical direction configuration are caused, and the cross member being connect with 2 longitudinal components,
The diffuser also serves as at least part of the cross member.
[8] membrane filter unit according to any one of [1]~[7], the membrane component have：Laminar film, the fixed film
Upper end upper body and the fixed film lower end lower case,
The multiple membrane component is configured as：The film toward each other, the long side of the upper body and the lower case
Direction is aligned, and vacates appointed interval X between the adjacent upper body and between the adjacent lower case,
The framework has, and the membrane component is clamped from the long side direction side of the upper body and the lower case, matches
2 longitudinal components in substantially vertical direction are set,
The longitudinal component has upper support board；The upper support board with the upper body and the lower case
Side A in the width direction that the long side direction of body intersects vertically, with configuration in the surface B in the outside of outermost membrane component
Outermost surface B ' in the same plane, alternatively, the side A projects to the maximum height of the side A and the surface B
Poor Y is more than 0, the interval X or less.
[9] membrane filter unit according to any one of [1]~[8], which is characterized in that the membrane component has laminar film,
The film outer diameter of the laminar film is 1mm or more 5mm or less.
[10] membrane filter unit according to any one of [1]~[9], the membrane component have laminar film, the membrane component
With supporter.
[11] membrane filter unit according to any one of [1]~[10], total height are 1m or more 1.5m or less.
[12] weight of the membrane filter unit according to any one of [1]~[11], unit membrane area is 1.0kg/m2With
Under.
[13] a kind of method for treating water, including：The membrane filter unit described in any one of [1]~[12] is used, solid-liquid point is carried out
From.
[14] it according to the method for treating water described in [13], is used described in any one of [1]~[12] in activated sludge sink
Membrane filter unit.
[15] it is to use [11] described in 1.5m activated sludge sinks below in the depth of water according to the method for treating water described in [13]
Membrane filter unit.
The effect of invention
The present invention membrane filter unit with previous membrane filter unit compared with, it can be achieved that miniaturization with it is cost effective.
Description of the drawings
The stereogram of an example of the membrane filter unit of [Fig. 1] displaying present invention.
[Fig. 2] shows the stereogram of an example of hollow fibre membrane component.
[Fig. 3] shows the stereogram of an example of framework (but not including that pressing plate).
The vertical view of the state of collector pipe and pressing plate is removed in [Fig. 4] displaying from the membrane filter unit of Fig. 1.
The vertical view of state is arranged side by side in the membrane filter unit of [Fig. 5] display diagram 4.
[Fig. 6] is illustrated in the stereogram for the appearance that hollow fibre membrane component is inserted into framework.
[Fig. 7] shows the stereogram of an example of elastomeric element.
Elastomeric element is mounted on the stereogram of the appearance on the hollow fibre membrane component being arranged in framework by [Fig. 8] displaying.
Pressing plate is fixed on the stereogram of the appearance on the upper support board of framework by [Fig. 9] displaying.
Collector pipe is connected to the stereogram of the appearance on hollow fibre membrane component by [Figure 10] displaying.
Another stereogram of the membrane filter unit of [Figure 11] displaying present invention.
Another stereogram of the membrane filter unit of [Figure 12] displaying present invention.
Reference numeral
1 membrane filter unit, 2 hollow fibre membrane components, 3 frameworks, 4 diffusers, 4a air dispelling holes, 4b sludge discharge pipe, 5 collector pipes,
5a connecting tubes, 5b collecting pipes, 5c intake pipes, 6 elastomeric elements, 6a base parts, the protrusions 6b, 10 hollow-fibre membranes, 12 doughnuts
Membrane-like object, 14 upper bodies, 16 lower cases, 18 longitudinal rods, 20 top fitting projections, 22 lower part fitting projections, 24 water intakings
Mouth, 30 longitudinal components, 32 upper lateral components, 34 lower, transverse components, 40 pillars, 41 pillars, 42 guide portions, 42a guide grooves,
44 upper support boards, 44a through tubes, 46 lower support plates, 46a through tubes, 48 bolts, 50 pressing plates, 52 nuts, 54 support plates, 56
Air inlet, 58 lids, 60 inlet manifolds, 61 inlet manifolds, 62 suspension parts, the sides A, B surface, the surfaces B ', the intervals X, Y are maximum
Difference of height.
Specific implementation mode
[membrane filter unit]
<1st embodiment>
Fig. 1 is the stereogram of the 1st embodiment of the membrane filter unit of the displaying present invention.
Membrane filter unit 1 has：Multiple plate hollow fibre membrane components 2；Keep the framework 3 of multiple hollow fibre membrane components 2；
The diffuser 4 being connect with the lower part of framework 3；Configuration connects in the top of hollow fibre membrane component 2, with each hollow fibre membrane component 2
The collector pipe 5 connect.
(hollow fiber film unit)
Fig. 2 is the stereogram of an example for showing hollow fibre membrane component.
Hollow fibre membrane component 2 has：The hollow fiber membrane sheet substance that multiple hollow-fibre membranes 10 are aligned in one direction
12；The upper body 14 of the upper end of the long side direction of the hollow-fibre membrane 10 of fixed hollow fiber membrane sheet substance 12；Fixation is hollow
The lower case 16 of the lower end of the long side direction of the hollow-fibre membrane 10 of tunica fibrosa tablet 12；Configuration is in doughnut membrane-like
2 longitudinal rods 18 of the end of the both sides of object 12, the end for connecting upper body 14 and lower case 16；From upper body 14
The top fitting projection 20 that end is prominent to the outside of the long side direction of upper body 14 and is formed；From the end of lower case 16
Prominent to the outside of the long side direction of lower case 16 and formation lower part fitting projection 22；End from the side of upper body 14
The intake 24 that portion is raised upward and is formed.
The upper body 14 for the square tube shape that both ends are closed is inserted into the upper end of hollow fiber membrane sheet substance 12, is keeping hollow
It is fixed in liquid-tight manner by mould material (diagram is omited) in the state of the opening of tunica fibrosa 10.
The lower case 16 for the square tube shape that both ends are closed is inserted into the lower end of hollow fiber membrane sheet substance 12, is keeping doughnut
It is fixed in liquid-tight manner by mould material (diagram is omited) in the state of the opening of film 10.
As the material of hollow-fibre membrane 10, can lift for example, polysulfones system resin, polyacrylonitrile, cellulose derivative, polyene
Hydrocarbon (polyethylene, polypropylene etc.), fluorine resin (polyvinylidene fluoride, polytetrafluoroethylene (PTFE) etc.), polyamide, polyester, poly- methyl-prop
Olefin(e) acid ester, polyacrylate import the product of substituent group into a part for these resins, containing the monomer for constituting these polymer
Copolymer resin etc..Wherein, from the point of view of the excellent point of acid resistance, alkali resistance, preferred polyvinylidene fluoride.
Hollow-fibre membrane preferably comprises one or more of these resins.
The film outer diameter of composition hollow fiber membrane sheet substance 12, each hollow-fibre membrane 10 being aligned in one direction, from
From the viewpoint of water treatment efficiency, the durability of hollow-fibre membrane and integrated rate, preferably 1mm or more 5mm are hereinafter, more preferably
1.2mm or more 4mm hereinafter, further preferably 1.3mm or more 3mm hereinafter, particularly preferably 1.5mm or more 2.5mm or less.
As upper body 14 and the material of lower case 16, preferably there is the material of mechanical strength and durability.It can
Citing as makrolon, polysulfones, polyolefin, polyvinyl chloride, acrylic resin, acrylonitrile-butadiene-styrene (ABS) (ABS) resin,
Noryl etc..Upper body 14 and lower case 16 preferably comprise one or more of these resins.
As mould material, such as solidfied material of thermosetting resin (epoxy resin, unsaturated polyester resin) that can illustrate gathers
Urethane resin, silicone-based packing material, various thermoplastic resins.
Longitudinal rod 18 is：By supporting the doughnut diaphragm by being aligned the hollow-fibre membrane constituted 10 in one direction
Shape object 12 avoids the deformation of hollow fiber membrane sheet substance 12, keeps the supporter of the shape of hollow fibre membrane component 2.Due in
Empty fiber membrane element 2 has a longitudinal rod 18, whens the carrying of hollow fibre membrane component 2, the assembling of membrane filter unit 1 are replaced etc.
Operability improves, also, is inserted into framework 3 to hollow fibre membrane component 2 and takes out hollow fibre membrane component 2 from framework 3 and all become
It must be easy.
As the material of longitudinal rod 18, can illustrate such as resin (polyvinyl chloride, fluorine resin, polyolefin, ABS resin, poly- carbon
Acid esters etc.), metal (stainless steel, titanium etc.).As the material of longitudinal rod 18, the point excellent from the acid resistance to hydrochloric acid, sulfuric acid comes
It sees, preferred resin, from the viewpoint of resistance to chemical reagents, more preferable polyvinyl chloride or fluorine resin, from cheap and and other component
Adhesiveness it is good, from the point of view of the point of easy to manufacture hollow fibre membrane component 2, further preferred polyvinyl chloride resin.In addition, " poly-
Vinyl chloride-based resin " refers to the resin containing the structural unit from vinyl chloride, preferably polyvinyl chloride.
As longitudinal rod 18 based on following preferred pipes of point：Hollow-fibre membrane 10 is shaken due to the aeration from diffuser 4
It shakes, when rubbing with longitudinal rod 18, compared with square tube, the damage of hollow-fibre membrane 10 can be reduced.
As pipe, from light and cheap point, preferably commercially available polyvinyl chloride pipe.As polyvinyl chloride pipe, can enumerate hard
Matter polyvinyl chloride pipe (JIS K 6741), water pipe hard polyethylene chloride tube (JIS K 6742) etc..
Top fitting projection 20 is chimeric with the guide groove 42a of guide part 42 in the longitudinal component 30 of aftermentioned framework 3, suppression
The lateral shift of hollow fibre membrane component 2 in upper body 14 processed.
Lower part fitting projection 22 is chimeric with the guide groove 42a of guide part 42 in the longitudinal component 30 of aftermentioned framework 3, suppression
The lateral shift of hollow fibre membrane component 2 in lower case 16 processed.In addition, passing through the guide groove 42a's along guide part 42
Long side direction slides, and hollow fibre membrane component 2 and framework 3 can relatively move in substantially vertical direction.
Intake 24, for by by the filtering of hollow-fibre membrane 10, concentrate on the liquid of collecting space in upper body 14
It takes out to the outside of hollow fibre membrane component 2.
(framework)
Fig. 3 is the stereogram of an example for showing framework (but not including pressing plate).
Framework 3 has：From the long side direction side of upper body 14 and lower case 16 be clamped hollow fibre membrane component 2, and with
Set 2 longitudinal components 30 in substantially vertical direction；It is configured as being clipped between hollow fibre membrane component 2, connects 2 longitudinal directions portion
Upper lateral component 32 between the central portion in the upper level direction of part 30；Connect the lower, transverse between the lower part of longitudinal component 30
Component 34.Lower, transverse component 34 also serves as diffuser 4.
At least part of framework 3 also serves as the air inlet pipe to 4 supply gas of diffuser.
(longitudinal component)
Longitudinal component 30 has：Configure 2 pillars 40 in substantially vertical direction；It is configured as clamping than 40 inside of pillar
2 guide parts 42 of upper lateral component 32；2 through tube 44a are respectively connected to 2 pillars 40 and side and guide part 42
Upper end engagement upper support board 44；2 through tube 46a are respectively connected to 2 pillars 40 and under side and guide parts 42
Hold the lower support plate 46 of engagement；Be fixed on upper support board 44 with bolt 48 (referring to Fig. 1) and nut (diagram is omited), from
And the pressing plate 50 for depressing the hollow fibre membrane component 2 being clamped between longitudinal component 30 from top (referring to Fig. 1)；With bolt (figure
Show summary) and nut 52 be fixed in lower support plate 46, to support the doughnut that is clamped between longitudinal component 30 from below
The support plate 54 of membrane component；The air inlet 56 of the upper end of 1 through tube 44a in 2 through tube 44a；It is passed through mounted on 2
The lid 58 of the upper end of the through tube 44a for not installing air inlet in siphunculus 44a；It is connected to the lower end and 3 of 2 through tube 46a
The inlet manifold 60 of the end of the side of root diffuser 4；Suspension parts 62 on upper support board 44.
By making pillar 40 be pipeline, pillar 40 can also serve as the air inlet pipe to 4 supply gas of diffuser.
By the way that the upper end lid of the through tube 44a of the upper support board 44 of the pillar 40 used not as air inlet pipe will be connected to
58 closings, to inhibit gas from diffuser 4 with external leakage.
As the material of pillar 40, can illustrate such as resin (polyvinyl chloride, fluorine resin, polyolefin, ABS resin, poly- carbonic acid
Ester etc.), metal (stainless steel, titanium etc.).As the material of pillar 40, from cheap point, the point, light of easy to manufacture longitudinal component 30
From the point of view of the excellent point of the point and resistance to chemical reagents of matter, preferred resin is good from the adhesiveness with other component, longitudinal direction is more easily manufactured
From the point of view of the point of component 30, more preferable polyvinyl chloride resin.
As pillar 40 from preferred pipe from the point of view of point below：Mechanical strength；Hollow-fibre membrane 10 is rocked because aeration etc.
And when with pipe friction, since there is no the rib portion of film, the damage reduction of film etc..
As pipe, from light and cheap point, preferably commercially available polyvinyl chloride pipe can be enumerated hard as polyvinyl chloride pipe
Matter polyvinyl chloride pipe (JIS K 6741), water pipe hard polyethylene chloride tube (JIS K 6742) etc..
As shown in figure 4, guide part 42 is the wave plate for being formed with the multiple guide groove 42a extended in substantially vertical direction
Component, guiding hollow fibre membrane component 2 are substantially vertical direction.
Guide groove 42a inhibits the hollow-fibre membrane in upper body 14 by the top fitting projection 20 of chimeric upper body 14
The lateral shift of element 2.
Guide groove 42a inhibits the hollow-fibre membrane in lower case 16 by the lower part fitting projection 22 of chimeric lower case 16
The lateral shift of element 2.In addition, being slided along the long side direction of guide groove 42a by lower part fitting projection 22, hollow-fibre membrane
Element 2 and framework 3 can relatively move in substantially vertical direction.
Since longitudinal component 30 has guide part 42, being configured as the longitudinal component 30 of guide part 42 toward each other can be by
Hollow fibre membrane component 2 is clamped according to following manner：Limit the opposite of the horizontal direction between hollow fibre membrane component 2 and framework 3
It is mobile, and make to relatively move in substantially vertical direction between hollow fibre membrane component 2 and framework 3.
As the material of guide part, can illustrate such as resin (polyvinyl chloride, fluorine resin, polyolefin, ABS resin, poly- carbonic acid
Ester etc.), metal (stainless steel, titanium etc.).As the material of guide part 42, from cheap point, easy to manufacture longitudinal component 30 point,
From the point of view of the excellent point of the point and resistance to chemical reagents of lightweight, preferred resin, it is good from the adhesiveness with other component, be more easily manufactured it is vertical
To from the point of view of the point of component 30, more preferable polyvinyl chloride resin.
Upper support board 44 and lower support plate 46 are equipped with the through tube for being connected with pillar 40.In addition, upper support
On the side of plate 44 and lower support plate 46 engaged with guide part 42, it is formed with the shape of the guide part 42 of corresponding wave plate
Bumps, pass through concave-convex, the upper support board 44 chimeric with the bumps of guide part 42 of upper support board 44 and lower support plate 46
It can be sufficiently engaged with lower support plate 46 and guide part 42.
As the material of upper support board 44 and lower support plate 46, can illustrate as resin (polyvinyl chloride, fluorine resin,
Polyolefin, ABS resin, makrolon etc.), metal (stainless steel, titanium etc.).As upper support board 44 and lower support plate 46
Material, it is excellent from the point of view of cheap point, the easy point of manufacture of longitudinal component 30, the point of lightweight and the excellent point of resistance to chemical reagents
Select resin, from the adhesiveness of other component is good, from the point of view of the easier point of manufacture of longitudinal component 30, more preferable polyvinyl chloride
Resin.
Pressing plate 50 is the component pushed from the top for the hollow fibre membrane component 2 being clamped between longitudinal component 30.
Pressing plate 50 inhibits floating from hollow-fibre membrane 2 caused by aeration of diffuser 4 etc., while inhibiting hollow fibre membrane component
2 vibration reduces loss caused by the friction between hollow fibre membrane component 2.
The material of pressing plate 50 is selected according in order to inhibit the floating required mechanical strength of hollow fibre membrane component 2.Make
For the material of pressing plate 50, from the point of view of the point of high mechanical strength, preferred metal (stainless steel, titanium etc.).If there is no problem for mechanical strength,
Resin or fiber-reinforced plastic can also be used.
Fixation of the pressing plate 50 on upper support board 44 is preferably carried out by screw bolt and nut.In the bonding by epoxy resin etc.
In, pressing plate 50 can not be removably secured, it is difficult to take out hollow fibre membrane component 2.
Preferred disposition elastomeric element between pressing plate 50 and hollow fibre membrane component 2 (diagram is omited).Pressing plate 50 and doughnut
Between membrane component 2, by configuring elastomeric element, even if having deviation in the height of hollow fibre membrane component 2, since elastomeric element becomes
Shape can contact with each hollow fibre membrane component 2, effectively push down hollow fibre membrane component 2.As a result, can further inhibit
The vibration of hollow fibre membrane component 2.
As the material of elastomeric element, thermo-setting elastomer (Ethylene-Propylene-Diene rubber (calling EPDM in the following text), fourth can be enumerated
Nitrile rubber, fluorubber, silicon rubber, polyurethane rubber etc.), thermoplastic elastomer (TPE) (styrene series elastomer, olefin-based elastomer,
Vinyl chloride elastomer, ester based elastomers, polyurethane series elastomer, acid amides based elastomers etc.) etc..The material of elastomeric element is not
It is limited to thermo-setting elastomer and thermoplastic elastomer (TPE), as long as material of flexible relative, such as polyethylene, polypropylene etc.
The thermosetting resins such as thermoplastic resin, polyurethane.
The range of preferred A10~95 of durometer hardness of elastomeric element.The durometer hardness of elastomeric element in the above range when,
The stress securely pushed down and generated when multiple hollow-fibre membranes 2 can be fully mitigated, and plays the work of the vibration of buffering hollow-fibre membrane 2
With.In addition, the range of more preferable A40~90 of the durometer hardness of elastomeric element.If the durometer hardness of elastomeric element in A40 or more,
The elastomeric element dosage that can inhibit the sufficient mechanical strength for obtaining pushing down hollow fibre membrane component 2, can inhibit cost.
If the durometer hardness of elastomeric element hereinafter, the flexibility due to elastomeric element increases, inhibits hollow fibre membrane component 2 in A90
Vibration inhibits the effect of damage more preferable.
The durometer hardness of elastomeric element is according to JIS K 6253 (ISO 7619) defined.
Support plate 54 is the component from the supported underneath for the hollow fibre membrane component 2 being clamped between longitudinal component 30.
The material of support plate 54 is selected according in order to support the mechanical strength needed for the quality of hollow fibre membrane component 2.As branch
The material of plate 54, from the point of view of the point of high mechanical strength, preferred metal (stainless steel, titanium etc.).If there is no problem for mechanical strength, also may be used
To use resin or fiber-reinforced plastic.
Fixation of the support plate 54 in lower support plate 46 is preferably carried out by screw bolt and nut.In the bonding by epoxy resin etc.
In, it may be difficult to it is removed on adhesive surface.
The component that inlet manifold 60 is made of pipe containing H-type.
By making inlet manifold 60 be pipeline, inlet manifold 60 can also serve as the air inlet pipe to 4 supply gas of diffuser.
2 upper ends of longitudinal pipeline of inlet manifold 60 connect with the lower end of two through tube 46a of lower support plate 46 respectively
It connects, the center of 2 longitudinal pipelines of inlet manifold 60 and the center of lateral pipeline connect with one end of three diffusers 4 respectively
It connects.Lid (diagram is omited) is installed on 2 lower ends of longitudinal pipeline of inlet manifold 60.
As the material of inlet manifold 60, can illustrate as (polyvinyl chloride, polyolefin, ABS resin, gathers fluorine resin resin
Carbonic ester etc.), metal (stainless steel, titanium etc.).As the material of inlet manifold 60, from cheap point, easy to manufacture longitudinal component
From the point of view of 30 point, the point of lightweight and the excellent point of resistance to chemical reagents, preferred resin is good from the adhesiveness with other component, more hold
Easily from the point of view of the point of manufacture longitudinal component 30, more preferable polyvinyl chloride resin.
Air inlet 56 on the through tube 44a of upper support board 44 passes through hose (diagram is omited) and air blower (figure
Show summary) it is connected.
By make air blower, hose, air inlet 56, through tube 44a, pillar 40, through tube 46a, inlet manifold 60, diffuser according to
Secondary connection can make the pillar 40 as a part for framework 3 also serve as air inlet pipe and use on one side, on one side from air blower to diffuser
4 supply gas.
From the point of view of cheap point, the point of easy to manufacture longitudinal component 30, the point of lightweight and the excellent point of resistance to chemical reagents, structure
In component at longitudinal component 30, the material preferred resin of at least part of component, it is good from the adhesiveness between component, be easier
From the point of view of the point for manufacturing longitudinal component 30, in the component for constituting longitudinal component 30, the material of preferably 2 or more components is resin,
More preferably polyvinyl chloride resin.
(upper lateral component)
Upper lateral component 32 is configured as being clipped between hollow fibre membrane component 2, is the top water for connecting 2 longitudinal components 30
Square to central portion between section be L-type component.
Upper lateral component 32 is that end is fixed on upper support with bolt (diagram is omited) and eyenut (suspension parts 62)
On the central portion of the horizontal direction of plate 44.
As the material of upper lateral component 32, from the point of view of the point of high mechanical strength, preferred metal (stainless steel, titanium etc.).
(diffuser)
Diffuser 4 is cylinder-like part.
The outer wall of diffuser 4 is formed with the multiple air dispelling hole 4a being open upward.
The central portion of diffuser 4 is equipped with the sludge discharge pipe 4b extended downwards.
Diffuser 4 is connect with the inlet manifold of the lower part of longitudinal component 30 60 respectively by its both ends, to also serve as under framework 3
Portion's cross member 34.
(collector pipe)
Collector pipe 5 has：The more connections extended in the vertical direction being connect with the intake 24 of each hollow fibre membrane component 2
Pipe 5a；The collecting pipe 5b extended in the horizontal direction being connect with more connecting tube 5a；Prolong above the mediad of collecting pipe 5b
The intake pipe 5c stretched.
The connecting tube 5a of collector pipe 5 is connect with the intake 24 of each hollow fibre membrane component 2, and the intake pipe of collector pipe 5
5c is connect by hose (diagram is omited) with suction pump (diagram is omited).
Pump work is aspirated by allowing, is filtered with hollow-fibre membrane 10, by what is collected in the collecting space in upper body 14
After liquid is collected from the taking-up of hollow fibre membrane component 2 to collector pipe 5, taken out from collector pipe 5 to outside membrane filter unit 1
Portion.
(configuration of each component in membrane filter unit)
As shown in figure 4, multiple hollow fibre membrane components 2 are arranged to：Hollow fiber membrane sheet substance 12 toward each other, in upper case
It is aligned on body 14 and the long side direction of lower case 16, and between adjacent upper body 14 and adjacent lower case 16
Between vacate appointed interval X.
Interval X is the interval (surface on the surface of shell and shell adjacent thereto apart from maximum of adjacent shell
Maximum distance).
It is spaced X preferably 3~25mm, more preferable 5~15mm.When being spaced X more than the lower limiting value of above range, gas caused by being aerated
Between liquid mixed flow easily flows into hollow-fibre membrane 10, thus can not be by sludge blockage, to stable operation between film.If being spaced X
Above range upper limit value hereinafter, membrane filter unit 1 can miniaturise.
2 longitudinal components 30 of framework 3 are configured as, and are clamped from the long side direction side of upper body 14 and lower case 16
Hollow fibre membrane component 2.
The upper lateral component 32 of framework 3 is configured as, and is clipped between hollow fibre membrane component 2.
By as above configuring the longitudinal component 30 and upper lateral component 32 of framework 3, in multiple hollow fibre membrane components 2, configuration
It can expose to the outside of membrane filter unit 1 in the film surface of the hollow fiber membrane sheet substance 12 of outermost hollow fibre membrane component 2.
At this time preferably：The side A of the short side direction of the upper support board 44 of longitudinal component 30, i.e., upper support board 44 with
The side A for the width direction that the long side direction of upper body 14 and lower case 16 intersects vertically, with configuration in outermost
Outermost surface B ' is coplanar in the surface B in the outside (i.e. upper body 14 and lower case 16) of empty fiber membrane element 2, that is, exists
On same plane, alternatively, as shown in figure 4, the maximum difference of height Y that side A projects to side A and surface B be more than 0, interval X with
Under.
Side A and surface B ' if in the same plane, the hollow fibre membrane component 2 in framework 3 can not be configured lavishly, by
This, membrane filter unit 1 can miniaturise.
When the maximum difference of height Y that side A projects to side A and surface B is more than 0, interval X or less, as shown in figure 5, setting side by side
Set membrane filter unit 1 make configuration outermost hollow fibre membrane component 2 toward each other, when being abutted between the A of side, each membrane filtration
Configuration forms gap between the surface B of outermost hollow fibre membrane component 2 in unit 1, and between hollow fibre membrane component 2 between
It is too much every that will not become.It is prepared at the interval of outermost hollow fibre membrane component 2 and membrane filtration list from each filter membrane unit 1
From the point of view of the identical points of interval X between hollow fibre membrane component 2 in member 1, the maximum difference of height Y of side A and surface B preferably by
The half of X.
(the film packed density of membrane filter unit)
Film packed density preferably 150~350m that the following formula (I) of membrane filter unit 1 is found out2/m2, more preferable 200~300m2/
m2。
[number 2]
Wherein, D is film packed density, and n is the quantity of the membrane component 2 configured on membrane filter unit 1, EiIt is hollow for i-th
The summation of 10 surface area of hollow-fibre membrane in fiber membrane component 2, U are the area being arranged needed for membrane filter unit 1.
If the film packed density of membrane filter unit 1, more than the lower limiting value of above range, membrane filter unit 1 can be further small
Type.If the film packed density of membrane filter unit 1 above range upper limit value hereinafter, may be present between hollow-fibre membrane 10 suitable
The gap of degree, gas-liquid mixed stream easily flows into caused by being aerated, thus can not be by sludge blockage, to steady running between film.
(assembling of membrane filter unit)
About the assembling of membrane filter unit 1, illustrated with reference to drawing.
As shown in fig. 6, the guide groove 42a of the guide part 42 on the longitudinal component 30 of framework 3 (but not including pressing plate 50)
On, it is fitted into the lower part fitting projection of the lower case 16 in hollow fibre membrane component 2.
By making lower part fitting projection 22 be slided along the long side direction of guide groove 42a, hollow-fibre membrane is guided downwards on one side
Element 2 is inserted into framework 3 on one side.
While making lower case 16 and support plate 54 abuts, the top of the upper body 14 in hollow-fibre membrane 2 is set to be fitted into convex
Portion 20 is entrenched in guide groove 42a.
In this way, by 2 longitudinal components 30, hollow-fibre membrane is clamped from the long side direction side of upper body 14 and lower case 16
Element 2.
According to the number of hollow fibre membrane component 2, same operation is repeated.
When configuring elastomeric element between pressing plate 50 and hollow fibre membrane component 2, such as prepare elastomeric element 6 shown in Fig. 7.
Elastomeric element 6 has：The substrate component 6a of elongated flattened plates shape, with the of same size of the gap between hollow fibre membrane component 2
Width and spacing identical with the spacing for the hollow fibre membrane component 2 being arranged in framework 3 formed multiple protrusion 6b.
As shown in figure 8,4 elastomeric elements 6 to be mounted on to the upper body 14 for being arranged in the hollow fibre membrane component 2 in framework 3
Long side direction both ends, so that protrusion 6b is entrenched in the gap of hollow fibre membrane component 2.
As shown in figure 9, by being inserted into bolt 48 in the bolt hole of pressing plate 50 and upper support board 44, on bolt 48
Nut (diagram is omited) is installed, pressing plate 50 is fixed on the upper support board 44 on the longitudinal component 30 of framework 3 as a result, makes bullet
Property component 6 by hollow fibre membrane component 2 from top depress.
As shown in Figure 10, the doughnut by making to form a line by arranging multiple hollow fibre membrane components 2 in framework 3
The intake 24 of membrane component is connected with the connecting tube 5a for being connected to collector pipe 5, and collector pipe 5 is mounted on hollow-fibre membrane as a result,
The top of element 2.
As above, multiple hollow fibre membrane components 2 are obtained and pass through 3 fixed membrane filter unit 1 of framework.
(mechanism of action)
In membrane filter unit 1 described above, diffuser 4 and the lower part for the framework 3 for keeping multiple hollow fibre membrane components 2 connect
It connects.That is, forming the integrated structure of hollow fiber film assembly and air diffusion apparatus for making to make respectively in previous membrane filter unit.
It is therefore not necessary to like that connecting the framework of hollow fiber film assembly with screw bolt and nut with the framework of air diffusion apparatus in the past, nothing
Required to for the connection between framework and in each framework setting be inserted into bolt coupling part redundant space, without the need for
The processing time in bolt hole and the operation time for connecting framework and framework are squeezed on coupling part.Therefore, with it is previous
Membrane filter unit compare, it can be achieved that miniaturization and it is cost effective.
In addition, in membrane filter unit 1 described above, the pillar 40 and inlet manifold 60 of the part as framework 3 are simultaneous
The air inlet pipe to 4 supply gas of diffuser is done, because without being separately arranged as previous membrane filter unit for air-dispersing
The air inlet pipe of the diffuser supply gas of device.Therefore, can reduce corresponding with air inlet pipe required in the setting of membrane filter unit
Space, and component can be reduced.Therefore, may be implemented compared with previous membrane filtration module further minimize and it is low at
This change.
In addition, in membrane filter unit 1 described above, diffuser 4 also serves as the lower, transverse portion as a part for framework 3
Part 34, because without cross member in addition is arranged in the lower part of framework 3.Therefore, compare previous filter membrane unit, it can be achieved that into
Minimize to one step with it is cost effective.
On the other hand, most basements being arranged in building such as water tube apparatus in building.The basement setting in building
In water tube apparatus, there is that reactive tank is shallow, the ceiling of basement is low, is seldom equipped with the problems such as crane etc. slings equipment.Therefore, it ties up
When cuticula filter element, it is often difficult to pull out membrane filter unit from reactive tank.In addition, i.e. enabled pull out membrane filtration list from reactive tank
Member, sludge can flow out outside reactive tank, pollute sanitary equipment.It is therefore desirable for not pulling out membrane filter unit outside reactive tank from reactive tank
It is safeguarded, but extracts hollow fibre membrane component from the top of the membrane filter unit slightly lifted in reactive tank, tieed up
Shield or film are replaced.
In membrane filter unit 1 described above, framework 3 has：Be configured as clamping hollow fiber film unit 2, big
Two longitudinal components 30 for causing vertical direction to extend.Longitudinal component 30 has guides doughnut membrane element in substantially vertical direction
The guide part 42 of part 2, thus hollow fibre membrane component 2 releasably arranges in framework 3.It can be from membrane filter unit 1
Hollow fibre membrane component 2 is extracted by side, and hollow fiber film unit 2 is inserted into above membrane filter unit 1.Therefore, even if not film mistake
Filter unit 1 is taken out from reactive tank, and hollow fibre membrane component 2 can be also taken out from membrane filter unit 1, thus in the water pipe in building
Equipment etc. is difficult to pull out in scene of membrane filter unit 1 etc., can easily carry out the operation such as safeguarding.
The 1 preferred above 1.5m or less of total height 1m of membrane filter unit described above.If the total height of membrane filter unit 1 exists
More than the lower limiting value of above range, the membrane area of unit component volume can be kept, if above range upper limit value hereinafter, being easy to
Unit is launched in the conditional treatment facility of ceiling.
In addition, in order to be smoothed out the operation of above-mentioned maintenance etc., in order to reduce shipment and delivery cost, from water treatment efficiency and film
From the viewpoint of the setting stability of filter element, the preferred 0.4kg/m of weight of the unit membrane area of membrane filter unit 12With
Upper, 1.0kg/m2Hereinafter, more preferable 0.5kg/m2The above 0.7kg/m2Below.
<2nd embodiment>
Figure 11 is the stereogram of the 2nd embodiment of the membrane filter unit of the displaying present invention.Pair knot identical with the 1st embodiment
The identical reference numeral of structure addition, and detailed description will be omitted.
The membrane filter unit 1 of 2nd embodiment is supply gas from one in two longitudinal components 30 of framework 3 to diffuser 4
The example of body.
Variation point based on the 1st embodiment is as follows, the through tube of the upper support board 44 of one in 2 longitudinal components 30
1 in 44a is above installed air inlet 56, and lids 58 are all installed on other through tubes 44a；The gas supply side of diffuser 4
The end of opposite side is equipped with sludge discharge pipe 4b.
<3rd embodiment>
Figure 12 is the stereogram of the 3rd embodiment of the membrane filter unit of the displaying present invention.It is pair real with the 1st embodiment and the 2nd
It applies the identical structure of mode and adds identical reference numeral, and detailed description will be omitted.
The membrane filter unit 1 of 3rd embodiment is that the pillar of air inlet pipe is also served as in the longitudinal component 30 of framework 3 as square tube shape
Example.
Variation point based on the 2nd embodiment is as follows, and 2 containing the pipe piece pillar 40 in the longitudinal component 30 of framework 3 is become 1
The point of the pillar 41 of root square tube shape；H-type inlet manifold 60 on the longitudinal component 30 of framework 3 becomes the inlet manifold 61 of square tube shape
Point.
Pillar 41 and inlet manifold 61 pass through through tube (diagram is omited) connection in lower support plate 46.
<Other embodiment>
The membrane filter unit of the present invention has multiple membrane components, the framework of fixed multiple membrane components, the air-dispersing of framework lower part connection
Pipe.As long as at least part of framework also serves as the air inlet pipe for providing gas tangentially to diffuser, however it is not limited to the example of diagram
Son.
For example, membrane component is preferably filled with the high hollow fibre membrane component of density but it is also possible to be plate film element.
Longitudinal rod in membrane component is not limited to pipe, caused by the friction as long as no mechanical strength, with pipe the problem of membrane damage,
It can also be square tube.The cross sectional shape of square tube is not limited to quadrangle, can also be the other shapes such as hexagon.
The fitting projection on membrane component for guiding membrane component in substantially vertical direction can also be guide groove.At this point, another
Guide groove in the guide part of the longitudinal component of the framework of side can be fitting projection.
The upper pillar of the longitudinal component of framework is not limited to pipe, is contacted as long as no mechanical strength, with hollow-fibre membrane
When drawing hang, friction caused by damage generate the problems such as, can also be square tube.The cross sectional shape of square tube is not limited to quadrangle,
Can be the other shapes such as hexagon.
When pillar on the longitudinal component of framework does not also serve as air inlet pipe, solid cylindrical can also be made.At this point, not with
Necessity of lid is installed on the through tube 44a of columned pillar connection.
The quantity of pillar in the longitudinal component of framework is, as long as be 1 or more relative to component longitudinally in each, it can root
It is suitably set according to the size of membrane filter unit.The quantity of pillar in the longitudinal component of framework is as shown in Figure 1, by connecting top
Support plate and lower support plate form the structure of frame-like, from the point of view of longitudinal component stablizes the point not rocked, preferably with respect to every
A longitudinal component is 2.
Guide part that can also be in the longitudinal component of framework is divided up and down, to separate guide groove in midway.But if
Guide part separates up and down, be inserted into membrane component when on the downside of the corresponding position of guide part be difficult to determine, thus preferably it is as shown
Example is such, in the up-down direction continuously.
It can also be different shape that upper support board and lower support plate on the longitudinal component of framework, which can be same shapes,.From
The mold for making molded product is allowed only to need 1, from the point of view of the point for not generating extra cost, preferably upper support board and lower support
Plate is same shape.
The problem of pressing plate and support plate in the longitudinal component of framework are as long as no mechanical strength, can also respectively with upper support board
With lower support plate integration.
The assembling means for assembling each component are not limited to screw bolt and nut, can also be other equipment (such as C-type clamp (シ ャ
Ten thousand power of U)).
The quantity of collector pipe is not limited to 1.For example, membrane component is in substantially vertical direction in longer situation, only upside
Pressure difference becomes larger between film when collector pipe.The pressure difference between film in order to reduce the length direction of film, can be by other collector pipe
It is connected to lower case.
[method for treating water]
The present invention method for treating water include：It is separated by solid-liquid separation using the membrane filter unit of the present invention.In method for treating water
In solid-liquid separation process, other than using the membrane filter unit of the present invention, well known mode can be used.
For example, can be in various waste water (industrial wastewater, the life that will contain organic matter, microorganism (bacterium class etc.) and its remains etc.
Waste water living etc.) while carry out biochemical treatment by activated sludge in activated sludge sink, by being immersed in activated sludge water
Sludge and processing water are separated by solid-liquid separation, carry out water process by the membrane filter unit of the present invention in slot.
The total height of membrane filter unit 1 in 1m or more 1.5m or less, the depth of water of above-mentioned activated sludge sink can 1.5m with
Under.
Embodiment
Hereinafter, the present invention is illustrated by embodiment, but the present invention is not limited except as.
(embodiment 1)
The following membrane filter unit 1 for making Figure 11.
Air dispelling hole 4a at 7 is opened on hard polyethylene chloride tube (VP13, outer diameter 18mm, internal diameter 13mm), as diffuser 4.
It will be provided with 3 holes for connecting diffuser 4, H-type inlet manifold 60 containing hard polyethylene chloride tube, uses polyvinyl chloride
It is separately fixed at adhesive bonding on the both ends of 3 diffusers 4.
Prepare to be equipped with the through tube 46a's that 2 are made of hard polyethylene chloride tube (VP30, outer diameter 38mm, internal diameter 31mm)
Through tube 46a is fixed on the 2 of longitudinal pipeline of inlet manifold 60 by lower support plate 46 with polyvinyl-chloride use adhesive bonding
On a upper end.Lid (diagram is omited) is fixed on to the 2 of longitudinal pipeline of inlet manifold 60 with polyvinyl-chloride use adhesive bonding
On a lower end.
The hexagon socket head cap screw of support plate 54 and nut 52 that the stainless steel (SUS304) in L-type section is made are fixed on lower support plate 46
On.
It respectively will be viscous with polyvinyl-chloride use by the pillar 40 that hard polyethylene chloride tube (VP30, outer diameter 38mm, internal diameter 31mm) is constituted
Mixture is adhesively fixed on 2 through tube 46a of lower support plate 46.
Prepare to be equipped with the through tube 44a's that 2 are made of hard polyethylene chloride tube (VP30, outer diameter 38mm, internal diameter 31mm)
Through tube 44a is fixed on the upper end of 2 pillars 40 by upper support board 44 with polyvinyl-chloride use adhesive bonding.
End hexagon socket head cap screw and the nut (suspension for the upper lateral component 32 that the stainless steel (SUS304) of section L-type is made
Component 62) assembly be separately fixed on 2 upper support boards 44.The top of membrane filter unit 1 is reinforced as a result, and can be by film
Filter element 1 is sling, is pulled out from reactive tank.
The lower end of guide part 42 is bonded in the side of lower support plate 46, the upper end of guide part 42 is bonded in top branch
The side of fagging 44.In this way, being mounted with totally 4 guide parts 42.
1 through tube that will be fixed on polyvinyl-chloride use adhesive bonding as the socket of air inlet 56 in 4 through tube 44a
The upper end of 44a.It is in the structure being connected to from air inlet 56 to diffuser 4 as a result,.
Respectively in the upper end of other 3 through tube 44a, lid 58 is fixed with polyvinyl-chloride use adhesive bonding.As a result, be in from into
The structure that part of the air that gas port 56 supplies not other than diffuser 4 leaks.
As shown in fig. 6, by making 2 (membrane area 5m of hollow fibre membrane component shown in Fig. 22) lower part fitting projection 22,
It is entrenched in the guide groove 42a of guide part 42, slides downwards, thus hollow fibre membrane component 2 is inserted into framework.It will add up to
10 hollow fibre membrane components 2 are inserted into framework 3.Thickness near the shell center of hollow fibre membrane component 2 is 13mm, by it
With being alternatively arranged for 23mm, thus the interval X between the hollow-fibre membrane 2 near shell center is 10mm.
As shown in figure 8, by the (thickness of the base part 6a without protrusion 6b of elastomeric element 6 of EPDM as shown in Figure 7：
6mm, durometer hardness：A70), mounted on the long side direction of the upper body 14 for the hollow fibre membrane component 2 being arranged in framework 3
Both ends on, in the gap between making protrusion 6 be entrenched in empty fiber membrane element 2.
As shown in figure 9, hexagonal in being inserted into the bolt hole of the pressing plate 50 and upper support board 44 made in stainless steel (SUS304)
Bolt 48 installs nut (diagram is omited) on bolt 48, is screwed to elastomeric element 6 relative to 2 nothing of whole hollow fibre membrane components
Contact to gap.In this way, pressing plate 50 is fixed on upper support board 44, so that can be via elastomeric element 6 by hollow-fibre membrane
Element 2 is depressed from top.
As shown in Figure 10, by connecting the connecting tube 5a of the intake 24 and collector pipe 5 of hollow fibre membrane component 2, will collect
Water pipe 5 is mounted on the top of hollow fibre membrane component 2.
As above, obtain keeping the membrane filter unit 1 of multiple hollow fibre membrane components 2 by framework 3.
The appearance and size of membrane filter unit 1 is, wide：825mm, depth：260mm, height：1296mm.
Film packed density is 233m2/m2(=5m2×10/(0.825m×0.26m))。
The maximum difference of height Y of side A and surface B in Fig. 4 are 5mm.Thus 1 tight of multiple membrane filter units it is set up in parallel
When, in each membrane filter unit 1 interval of the configuration between outermost hollow fibre membrane component 2 can in membrane filter unit in
Interval X between empty fiber membrane element 2 is identical, is 10mm.Even if when multiple membrane filter units 1 are arranged side by side, in fixed upper lateral
In all parts other than the part of component, the gap between hollow fibre membrane component 2 can be 10mm.Can confirm can not reduce film
Arrange to packed density hollow fibre membrane component 2.
The immersed membrane filtration unit 1 in the reactive tank for carrying out the biochemical treatment based on membrane separation activated sludge process, to catchmenting
5 connection flexible pipe of pipe uses suction pump with 1.25m on one side3/ h extracts raw water and is filtered, on one side the connection flexible pipe on air inlet 56,
By air blower with 13.4Nm3/ h carries out air-supply air-dispersing, carries out in operating in 1 month, can allow membrane filtration suction pressure difference not
Rise, stable operation.
Based on result above, it is thus identified that it is used by regarding the part for constituting the framework 3 of membrane filter unit 1 as air inlet pipe, with
Low cost minimized, can stable operation membrane filter unit 1.
Industrial availability
The membrane filter unit of the present invention is suitable for：High dirt Turbidity Water processing purposes (2 processing of sewage treatment plant or
3 processing, the separation of solid and liquid in purification tank, the SS (suspended substance) in industrial wastewater separation of solid and liquid etc.), sterile water, drink
Water, the manufacture purposes of high-purity pure water, air purification purposes etc..
Claims (15)
1. a kind of membrane filter unit, which is characterized in that have：
Multiple membrane components,
Keep the multiple membrane component framework and
The diffuser being connect with the lower part of the framework；
At least part of the framework also serves as the air inlet pipe to the diffuser supply gas.
2. membrane filter unit according to claim 1, the framework has the clamping membrane component, in substantially vertical direction
2 longitudinal components of upper configuration,
At least part of the longitudinal component also serves as the air inlet pipe to the diffuser supply gas.
3. membrane filter unit according to claim 1 or 2, the framework has the clamping membrane component, substantially vertical
2 longitudinal components of direction configuration,
The longitudinal component has the guide part for substantially vertical direction by membrane component guiding.
4. membrane filter unit described in any one of claim 1 to 3 is 150 by the film packed density that lower formula (I) is found out
~350m2/m2,
[number 1]
Wherein, D is film packed density, and n is the quantity of the membrane component configured in membrane filter unit, EiFor the film table of i-th of membrane component
Area, U are the area being arranged needed for membrane filter unit.
5. membrane filter unit according to any one of claims 1 to 4, the framework have the clamping membrane component,
Substantially 2 longitudinal components of vertical direction configuration,
At least part of material of the longitudinal component is resin.
6. membrane filter unit according to claim 5, the resin is polyvinyl chloride resin.
7. according to membrane filter unit according to any one of claims 1 to 6, the framework has：Be clamped the membrane component,
Substantially 2 longitudinal components of vertical direction configuration, and the cross member that is connect with 2 longitudinal components,
The diffuser also serves as at least part of the cross member.
8. membrane filter unit according to any one of claims 1 to 7, the membrane component has：Described in laminar film, fixation
The lower case of the lower end of the upper body of the upper end of film and the fixed film,
The multiple membrane component is configured as：The film toward each other, the long side of the upper body and the lower case
Direction is aligned, and has appointed interval X in vain between the adjacent upper body and between the adjacent lower case,
The framework has：The membrane component is clamped from the long side direction side of the upper body and the lower case, matches
2 longitudinal components in substantially vertical direction are set,
The longitudinal component has a upper support board, the upper support board with the upper body and the lower case
Side A in the vertical width direction of the long side direction of body, it is outermost in the surface B in the outside of outermost membrane component with configuration
The surface B ' of side is in the same plane or the side A projects to the maximum difference of height Y of the side A and the surface B and is
More than 0, the interval X or less.
9. according to membrane filter unit according to any one of claims 1 to 8, which is characterized in that the membrane component has sheet
The film outer diameter of film, the laminar film is 1mm or more 5mm or less.
10. according to membrane filter unit according to any one of claims 1 to 9, the membrane component has laminar film, the membrane element
Part has supporter.
11. according to membrane filter unit according to any one of claims 1 to 10, total height is 1m or more 1.5m or less.
12. the weight of the membrane filter unit according to any one of claim 1~11, unit membrane area is 1.0kg/m2
Below.
13. a kind of method for treating water, including：Using the membrane filter unit described in any one of claim 1~12, solid-liquid is carried out
Separation.
14. method for treating water according to claim 13, using any in claim 1~12 in activated sludge sink
Membrane filter unit described in.
15. method for treating water according to claim 13 is the right to use in 1.5m activated sludge sinks below in the depth of water
Profit requires the membrane filter unit described in 11.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015220574 | 2015-11-10 | ||
| JP2015-220574 | 2015-11-10 | ||
| PCT/JP2016/082246 WO2017082095A1 (en) | 2015-11-10 | 2016-10-31 | Membrane filtration unit and water treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108349757A true CN108349757A (en) | 2018-07-31 |
Family
ID=58695196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680065007.9A Pending CN108349757A (en) | 2015-11-10 | 2016-10-31 | Membrane filter unit and method for treating water |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6319463B2 (en) |
| KR (1) | KR20180052732A (en) |
| CN (1) | CN108349757A (en) |
| WO (1) | WO2017082095A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6771307B2 (en) * | 2016-04-28 | 2020-10-21 | 三菱ケミカルアクア・ソリューションズ株式会社 | Water treatment equipment |
| WO2021193930A1 (en) * | 2020-03-27 | 2021-09-30 | Nok株式会社 | Hollow fiber membrane module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10296253A (en) * | 1997-04-30 | 1998-11-10 | Matsushita Electric Works Ltd | Wastewater treatment apparatus |
| CN103118769A (en) * | 2010-07-13 | 2013-05-22 | 川崎重工业株式会社 | Immersion type membrane filtration unit and immersion type membrane filtration apparatus |
| WO2013151051A1 (en) * | 2012-04-02 | 2013-10-10 | 三菱レイヨン株式会社 | Hollow-fiber membrane module, process for producing hollow-fiber membrane module, and hollow-fiber membrane unit equipped with hollow-fiber membrane module |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08215549A (en) * | 1995-02-13 | 1996-08-27 | Kurita Water Ind Ltd | Dipped-membrane solid-liquid separator |
| US7279215B2 (en) * | 2003-12-03 | 2007-10-09 | 3M Innovative Properties Company | Membrane modules and integrated membrane cassettes |
| JP2010058014A (en) * | 2008-09-02 | 2010-03-18 | Kubota Corp | Method of cleaning membrane separation device and cleaning device |
| JP5770990B2 (en) * | 2010-09-22 | 2015-08-26 | 旭化成ケミカルズ株式会社 | Air diffuser, diffuser unit and submerged membrane unit |
| JP2015016446A (en) * | 2013-07-12 | 2015-01-29 | 旭化成ケミカルズ株式会社 | Immersed membrane unit |
-
2016
- 2016-10-31 WO PCT/JP2016/082246 patent/WO2017082095A1/en active Application Filing
- 2016-10-31 JP JP2016569087A patent/JP6319463B2/en active Active
- 2016-10-31 KR KR1020187010454A patent/KR20180052732A/en not_active Application Discontinuation
- 2016-10-31 CN CN201680065007.9A patent/CN108349757A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10296253A (en) * | 1997-04-30 | 1998-11-10 | Matsushita Electric Works Ltd | Wastewater treatment apparatus |
| CN103118769A (en) * | 2010-07-13 | 2013-05-22 | 川崎重工业株式会社 | Immersion type membrane filtration unit and immersion type membrane filtration apparatus |
| WO2013151051A1 (en) * | 2012-04-02 | 2013-10-10 | 三菱レイヨン株式会社 | Hollow-fiber membrane module, process for producing hollow-fiber membrane module, and hollow-fiber membrane unit equipped with hollow-fiber membrane module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6319463B2 (en) | 2018-05-09 |
| JPWO2017082095A1 (en) | 2017-11-09 |
| KR20180052732A (en) | 2018-05-18 |
| WO2017082095A1 (en) | 2017-05-18 |
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