CN104096483B - A kind of membrane component, the device using this membrane component and method for treating water - Google Patents
A kind of membrane component, the device using this membrane component and method for treating water Download PDFInfo
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- CN104096483B CN104096483B CN201410384072.0A CN201410384072A CN104096483B CN 104096483 B CN104096483 B CN 104096483B CN 201410384072 A CN201410384072 A CN 201410384072A CN 104096483 B CN104096483 B CN 104096483B
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- 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
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- 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
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Abstract
The present invention relates to a kind of membrane component, the device using this membrane component and method for treating water.Described membrane component comprises diaphragm, water inlet flows into the water inlet end of described diaphragm, waste water flows out wastewater effluent end and the pure water end of the pure water described diaphragm of outflow of described diaphragm, described membrane component also includes the water inlet end electrode being located in described water inlet and the pure water termination electrode being located in described pure water, described pure water termination electrode is connected with power cathode, described water inlet end electrode is connected with positive source, described water inlet end electrode zone and described water inlet flow into the distance that the distance of the water inlet end of described diaphragm flows out the wastewater effluent end of described diaphragm more than described water inlet end electrode zone with described waste water.
Description
Technical field
The present invention relates to a kind of novel electrochemistry self-cleaning membrane component, the device using this membrane component and method for treating water, a kind of novel dissolving inorganic salt fouling, improves membrane component and the device in membrane component service life.
Background technology
Reverse-osmosis membrane element is the core component of Membrane Separation for Water Treatment, it is possible to removes the microorganism in water source, ion etc., obtains pure water.Current existing reverse-osmosis membrane element mainly reaches the purpose of pure water preparation under a certain pressure by reverse osmosis membrane.In the real process using reverse-osmosis membrane element that tap water is processed, find that the wastewater effluent end produced has higher concentration and hardness, cause membrane component to be prone to inorganic salt fouling, reduce the service life of membrane component.In the reverse osmosis treatment system of middle and small scale, generally use and add antisludging agent, reduce the mode of the response rate to reduce the fouling of membrane surface.But add antisludging agent reducing while fouling, result in again the increase of waste water.
Summary of the invention
Technical problem
The technical problem to be solved is to solve the inorganic salt scale problems of membrane surface in reverse osmosis or NF membrane element, extends the membrane component life-span, and improves the membrane component response rate to a certain extent.
Technical scheme
The exploitation of the reverse osmosis/nanofiltration membrane element of the present invention is on the basis of existing reverse osmosis/nanofiltration membrane element, uses the method for electrochemistry to produce H+, dissolve the fouling that membrane surface produces, extend the service life of membrane component.Reverse osmosis/nanofiltration membrane element of the present invention is to be separately added into electrode at water inlet and the pure water end of traditional reverse osmosis/nanofiltration membrane element, and described electrode lays respectively at reverse osmosis/nanofiltration membrane sheet both sides.
According to the first aspect of the invention, provide a kind of electrochemistry self-cleaning membrane component, it is characterized in that described membrane component comprises diaphragm, water inlet flows into the water inlet end of described diaphragm, waste water flows out wastewater effluent end and the pure water end of the pure water described diaphragm of outflow of described diaphragm, described membrane component also includes the water inlet end electrode being located in described water inlet and the pure water termination electrode being located in described pure water, described pure water termination electrode is connected with power cathode, described water inlet end electrode is connected with positive source, described water inlet end electrode zone and described water inlet flow into the distance that the distance of the water inlet end of described diaphragm flows out the wastewater effluent end of described diaphragm more than described water inlet end electrode zone with described waste water.
In above-mentioned membrane component, described water inlet end electrode is positioned at the influent side on described diaphragm, and/or the pure water side that described pure water termination electrode is positioned on described diaphragm.
In above-mentioned membrane component, described water inlet end electrode zone and distance B of described wastewater effluent end or B ' >=2cm.
In above-mentioned membrane component, a length of described diaphragm in described pure water termination electrode region water inlet bulk flow direction on effective length 1/3～1/2；The width in described pure water termination electrode region is be perpendicular on water bulk flow direction effective diaphragm width 1/2～1.
In above-mentioned membrane component, described pure water termination electrode region is more than 80% with the registration of described water inlet end electrode zone, preferably more than 90%, the most substantially completely overlap.
In above-mentioned membrane component, described membrane component also has adhesive area, described water inlet end electrode zone and described pure water termination electrode region and avoids the adhesive area of described diaphragm.
In above-mentioned membrane component, described membrane component also includes pure water selvage guide and water inlet grid, and described pure water termination electrode is arranged on described pure water selvage guide, and described water inlet end electrode arrangements is in described water inlet grid.
In above-mentioned membrane component, between described water inlet end electrode and described pure water termination electrode, form 15mA～200mA, the anti-tartar electric current of preferably 20～100mA.
In above-mentioned membrane component, described water inlet end electrode and/or pure water termination electrode independently be thread, lamellar, tabular or mesh electrode.
In above-mentioned membrane component, described diaphragm is reverse osmosis membrane or NF membrane.
In above-mentioned membrane component, described membrane component is wound membrane element, collapsible membrane component, hollow fibre membrane component or plate and frame membrane component.
In above-mentioned membrane component, described pure water termination electrode pulls out from pure water central canal, water inlet end or waste water end, and through the part of water inlet and/or waste water, pure water termination electrode is carried out insulation processing.
According to the second aspect of the invention, it is provided that a kind of water treatment facilities, described device comprises above-mentioned membrane component.
In above-mentioned water treatment facilities, also include that the water storage device being connected with pure water water side and membrane component water inlet end are sequentially connected the pump and prefilter element connect, be provided with the reflux pipe being connected to membrane component water inlet end in the pure water water side of described membrane component.
In above-mentioned water treatment facilities, described pipeline is connected between described prefilter element and described pump.
A kind of method for treating water, it is characterised in that use above-mentioned membrane component to process water, wherein, electrifying electrodes stops carrying out when controlling the water circulation runs at described membrane component.
In the above-mentioned methods, the controlling the water circulation running of described membrane component is divided into and being run multiple times, and shuts down energising at least one times at the laggard row of controlling the water circulation end of run, and the conduction time of described electrode is 10～50 minutes, preferably 20～40 minutes.
In the above-mentioned methods, electrifying electrodes is divided into and repeatedly carrying out, every time energising 5～15 minutes, and after energising terminates every time, controlling the water circulation runs 1～3 minute.
In the above-mentioned methods, before described membrane component is shut down, with the influent side of diaphragm described in pure water rinsing.
In the above-mentioned methods, pure water rinses the influent side of described diaphragm before returning to film in the way of backflow.
Technique effect
The advantage that the model electrochemical self-cleaning reverse osmosis/nanofiltration membrane element of the present invention maintains former membrane component equipment with high desalinization, and can be by applying certain electric current, can dissolve, in the case of not adding any chemical reagent, the fouling that membrane surface is formed, increase membrane component service life；Meanwhile, the response rate can be improved to a certain extent.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a present invention embodiment in the membrane component of a kind of form；
Fig. 2 is the schematic diagram of a present invention embodiment in another form of membrane component；
Fig. 3 is the schematic diagram of a present invention embodiment in another form of membrane component；
Fig. 4 is a kind of electrochemistry self-cleaning water processing means schematic diagram；
In above-mentioned accompanying drawing, 1. represent diaphragm；2. water inlet grid is represented；3. pure water selvage guide is represented；4. collector pipe is represented；5. pure water termination electrode is represented；6. water inlet end electrode is represented；7. limit glue and sealing compound are represented；8. marine glue district is represented.A represents wire electrode or electrode slice (plate) the layout area effective length on water inlet current main direction；B and B ' represents that wire electrode or electrode slice (plate) arrange district's minimum range of distance wastewater effluent mouth on waste body water outlet direction.
In the diagram, 1 represents preposition filter element；2 represent booster pump；3 represent membrane component；4 represent water butt；5 represent pure water return valve.
Detailed description of the invention
In the present invention, the response rate=pure water flow/flow of inlet water.
Normal flow is the pure water flow of (25 DEG C) at the standard conditions.
Static pressure=external pressure-osmotic pressure.
Pure water flow rate is the ratio of normal flow and static pressure.Pure water flow rate attenuation rate is compared to initial pure water flow rate, the percentage ratio that current pure water flow rate declines.
The membrane component of multi-form, water (flow) direction is different.As shown in fig. 1, current enter membrane component in the direction of the arrow, after converging in membrane component, along direction (i.e. the length direction of the membrane component) flowing substantially vertical with water inlet direction (i.e. the direction of arrow).In the case, water inlet current main direction refers to the length direction of membrane component, A represents wire electrode or electrode slice (plate) the layout area distance on water inlet current bulk flow direction, meanwhile, B represents wire electrode or electrode slice (plate) the distance nearest distance of wastewater effluent end.In FIG, the wire connecting pure water termination electrode is arranged through collector pipe.
In fig. 2, current enter membrane component in the direction of the arrow, flow out membrane component the most in the direction of the arrow.In the case, water inlet current main direction refers to the width of membrane component, and A represents wire electrode or electrode slice (plate) the layout area distance on water inlet current bulk flow direction.B ' represents wire electrode or the minimum distance of electrode slice (plate) distance wastewater effluent end.
In figure 3, current enter membrane component in the direction of the arrow, after converging in membrane component, along direction (i.e. the length direction of the membrane component) flowing substantially vertical with water inlet direction (i.e. the direction of arrow).In the case, water inlet current main direction refers to the length direction of membrane component, A represents wire electrode or electrode slice (plate) the layout area distance on water inlet current bulk flow direction, meanwhile, B represents wire electrode or electrode slice (plate) the distance nearest distance of wastewater effluent end.In figure 3, the wire (not shown) connecting pure water termination electrode does not passes through collector pipe layout, and the part of now pure water termination electrode contact water inlet and/or waste water carries out insulation processing.
In the diagram; intake after being filtered by preposition filter element 1; enter in membrane component 3 under the effect of booster pump 2; the pure water produced can be stored into a tank; i.e. in water butt 4; before shutting down energising, the pure water obtained is used before returning to pump in the way of backflow, membrane component 3 to be rinsed, it is ensured that in galvanization, the waste strength in membrane component is relatively low.On pure water current return circuit, pure water return valve 5 can be set.
It addition, in the membrane component or device of the present invention, can have the control portion not shown in figure, to control time and the electric current etc. of energising.
Membrane component for multi-form, the setting of electrode is: water inlet end electrode is arranged in every one page water inlet grid, arrange near wastewater effluent end, making described water inlet end electrode zone be more than, with the distance of the water inlet end of the described water inlet described diaphragm of inflow, the distance that described water inlet end electrode zone flows out the wastewater effluent end of described diaphragm with described waste water, water inlet end electrode zone is more than or equal to 2cm with the minimum distance of wastewater effluent end.Pass through this feature, it is ensured that shut down in galvanization, the H that water inlet end electrode produces+Can directly dissolve the inorganic salt fouling that diaphragm wastewater effluent end produces.Pure water termination electrode is arranged on every one page pure water selvage guide, and pure water termination electrode region and water inlet electrode zone overlapping area are more than 25%, to ensure certain current intensity.Lap is too small, the resistance between two electrodes can be caused excessive, thus affect scale removal effect.This lap is more than 80%, preferably more than 90%, the most substantially completely overlap.
In the present invention, a length of described diaphragm of described pure water termination electrode on water inlet bulk flow direction the 1/3～1/2 of effective length, thus ensures certain electric current, guarantees the OH produced at pure water end during energising simultaneously-Ensure that pure water pH reaches alkalescence scope.
Electrode may be located at diaphragm both sides, and electrode can be mounted directly on diaphragm.It addition, described membrane component can also include pure water selvage guide and water inlet grid, electrode can also not be directly installed on diaphragm, and is mounted on water inlet grid and the pure water selvage guide of diaphragm both sides.Pure water termination electrode is arranged on pure water selvage guide, and water inlet end electrode is then arranged in water grid.Electrode material to water inlet end, it is necessary to for inert electrode material, such as gold, platinum, silver, iridium coating layer titanium silk, platinum coated titanium silk, macromolecule conducting material etc., pure water termination electrode material be can conductive material, inert material is preferably used.Water inlet and the electrode form of pure water end can be thread, lamellar, tabular, netted etc..Pure water termination electrode should be connected with power cathode, and water inlet end electrode is connected with positive source.Described diaphragm can be reverse osmosis membrane or NF membrane, it is also possible to is other semipermeable membranes.
Described membrane component can have adhesive area, described water inlet end electrode zone and described pure water termination electrode region should avoid the adhesive area of described diaphragm.
In the present invention, described membrane component can also include collector pipe.The electrode of pure water end can concentrate in together to be passed by collector pipe and be connected with putamina pure water end, it is also possible to pulled out by water inlet end or waste water end.Pure water termination electrode can be carried out insulation processing through the part of water inlet and/or waste water.Water inlet end electrode can be connected with putamina water inlet end.Pure water end is connected with negative pole and the positive pole of DC source respectively with water inlet end electrode.
Described membrane component can be wound membrane element, collapsible membrane component, hollow fibre membrane component or plate and frame membrane component.These membrane components are known in the art.
Present invention also offers a kind of water treatment facilities, described device comprises above-mentioned membrane component.More specifically, as shown in Figure 3, described device also includes being sequentially connected the pump and prefilter element connect with membrane component water inlet end, the pipeline being connected to membrane component water inlet end it is provided with in the pure water water side of described membrane component, pure water is drained to the water inlet end dirt with flushing membrane element remaining of membrane component, and the most described pipeline is connected between described prefilter element and described pump.It addition, water side includes wastewater effluent end and pure water water side.
In the present invention, need to be formed the anti-tartar electric current of 15mA～200mA, anti-tartar electric current preferably 20～100mA between water inlet end electrode and pure water termination electrode.Electric current is too small, then cannot ensure enough anti-tartar effects.Electric current is excessive, may result in ion accumulation, increases fouling tendency.
Present invention also offers a kind of method for treating water, wherein use membrane component described above that water is processed.
It is said that in general, energising is to carry out when controlling the water circulation.Under power on condition, the former water end (W.E.) connecting positive pole produces H+, thus dissolve the fouling that membrane surface produces, improve membrane component service life.It addition, the pure water end connecting negative pole produces OH-, during controlling the water circulation, can be with adjusting water outlet as alkalescence.Meanwhile, the response rate can be improved to a certain extent.But, there is following defect in technique scheme: owing to containing a certain amount of Ca in water inlet2+And Mg2+Deng so that it is it is prone under electric field action assemble at membrane surface, thus causes the fouling near electrode the most serious.During operation, extra electric field easily causes scale formation the most serious near electrode.In contrast, in the present invention, membrane component is electrode no power in running, and energising is carried out after a shutdown.Use which, applicant surprisingly it has been found that, fouling near electrode can be prevented effectively from, pure water end can produce the pure water of high ph-values simultaneously, and during operation, the pure water scalable water outlet of this part high ph-values is alkalescence.Meanwhile, it has been found that by using pure water that the high-concentration waste water in membrane component is carried out before shutting down, the most after-applied electric field.Use pure water to be rinsed being replaced into by the high-concentration waste water in element the water that ion concentration is low, thus avoid the ion aggregation caused because electric field exists, can preferably avoid fouling near electrode, the most more preferably.Described pure water can directly use the pure water prepared in the present invention, can be so that diaphragm is carried out before being back to diaphragm by pure water.
That is, the method according to the invention, electrifying electrodes stops carrying out when controlling the water circulation runs at described membrane component, is shutdown energising.The controlling the water circulation running of described membrane component is segmented into being run multiple times, and the time that controlling the water circulation runs, according to depending on needing with water, is not particularly limited.Can shut down energising after controlling the water circulation end of run at least one times, the conduction time of electrode can be 10～50 minutes, preferably 20～40 minutes.That is, the flow process of process for preparing water can be: controlling the water circulation-shutdown (energising)-controlling the water circulation-shutdown (energising)-controlling the water circulation-shutdown (energising) ..., in this process; shut down energising at least to carry out once; after some controlling the water circulation, can only shut down, no power.Therefore, representing with " shutting down (energising) ", energising is that selectivity is carried out, and is energized as long as meeting to shut down at least one times.It addition, in shutting down galvanization, the energising of electrode can be carried out several times, energising 5～15 minutes every time, after energising terminates every time, controlling the water circulation runs 1～3 minute.Use this method of operation, after energising terminates, with the pure water rinsing diaphragm once prepared, can obtain more preferable good antiscale property effect.Before described membrane component is shut down, can be with the influent side of diaphragm described in the pure water rinsing prepared, wherein pure water rinses the influent side of described diaphragm before returning to film in the way of backflow.
Embodiment
Embodiment 1
The 0.5mm diameter yttrium oxide coated titanium silk of 7 10cm length is added as electrode in the water inlet grid of 1810-75G-ss lateral flow type (membrane component structure shown in Fig. 1) reverse-osmosis membrane element, pure water selvage guide adds the yttrium oxide coated titanium silk of 0.5mm diameter of 7 5cm length as electrode, wherein A is the length of pure water electrode layout area minor face, it is 5cm, B be from wastewater effluent end nearest wire electrode distance wastewater effluent end distance, for 5cm, prepare the wound membrane element of model electrochemical self-cleaning, pure water termination electrode silk is connected with DC power cathode, water inlet end wire electrode is connected with DC power anode, use the mode that before shutting down, pure water backflow is rinsed that membrane component is carried out.Specifically, controlling the water circulation running is divided into 3 times and carrying out, and carries out energising and clean after each controlling the water circulation runs, and shuts down the about 30min that is energized every time, and last controlling the water circulation to water is full.Using this method of operation, the pure water pH in pressure pot can reach 7.9, and when membrane component pure water water amount reaches 10t, pure water flow rate attenuation rate is 30%.
Embodiment 2
The 0.5mm diameter yttrium oxide coated titanium silk of 7 10cm length is added as electrode in the water inlet grid of 1810-75G (membrane component structure shown in Fig. 2) reverse-osmosis membrane element, pure water selvage guide adds the yttrium oxide coated titanium silk of 0.5mm diameter of 7 10cm length as electrode, wherein A is the length of pure water electrode layout area minor face, it is 10cm, B be from wastewater effluent end nearest wire electrode distance wastewater effluent end distance, for 5cm, prepare the wound membrane element of model electrochemical self-cleaning, pure water termination electrode silk is connected with DC power cathode, water inlet end wire electrode is connected with DC power anode, use the mode that before shutting down, pure water backflow is rinsed that membrane component is carried out.Running is divided into 3 times and carrying out, and each controlling the water circulation carries out energising and cleans after running, shut down the about 20min that is energized every time, and last controlling the water circulation to water is full.Using this method of operation, the pure water pH in pressure pot can reach 7.88, and when membrane component pure water water amount reaches 8t, pure water flow rate attenuation rate is 30%.
Embodiment 3
Preparing membrane component as described in case study on implementation 1, use the mode rinsed that do not refluxes of pure water before shutting down to be carried out membrane component, running is divided into 3 times and carrying out, and each controlling the water circulation carries out energising and cleans after running, shut down the about 30min that is energized every time, and last controlling the water circulation to water is full.Using this method of operation, the pure water pH in pressure pot can reach 8.1, and when membrane component pure water water amount reaches 4t, pure water flow rate attenuation rate has been reduced to 30%.Compared with Example 1, when its pure water flow rate decays to 30%, water amount is less, it can be seen that pure water backflow cleaning performance is better than not refluxing.
Embodiment 4
Membrane component is prepared as described in case study on implementation 1; when its water inlet and pure water termination electrode overlapping area are 10%; use the mode that before shutting down, pure water backflow is rinsed that membrane component is carried out; controlling the water circulation running is divided into 3 times and carrying out; controlling the water circulation carries out energising cleaning after running every time; shutting down the about 40min that is energized, last controlling the water circulation to water is full every time.Using this method of operation, the pure water pH in pressure pot is 7, almost identical with pure water pH when being not powered on, and when membrane component pure water water amount reaches 4t, pure water flow rate attenuation rate is 35%.
Embodiment 5
Membrane component is prepared as described in case study on implementation 1; when its water inlet and pure water termination electrode overlapping area are 80%; use the mode that before shutting down, pure water backflow is rinsed that membrane component is carried out; controlling the water circulation running is divided into 3 times and carrying out; after second time controlling the water circulation runs, carry out energising clean; shutdown is energized about 25min, and last controlling the water circulation to water is full.Using this method of operation, the pure water pH in water butt can reach 7.6, and when membrane component pure water water amount reaches 7t, pure water flow rate attenuation rate is 35%.
Embodiment 6
Membrane component is prepared as described in case study on implementation 1; when its water inlet and pure water termination electrode overlapping area are 80%; use the mode that before shutting down, pure water backflow is rinsed that membrane component is carried out; controlling the water circulation running is divided into 3 times and carrying out, and shuts down the about 25min that is energized after each controlling the water circulation end of run, and this shutdown energising is divided into 2 times and carrying out; be energized about 10min for the first time; then stop energising, controlling the water circulation 2 minutes, then shut down energising about 15 minutes.Last controlling the water circulation is full to water.Using this method of operation, the pure water pH in water butt can reach 7.8, and when membrane component pure water water amount reaches 8t, pure water flow rate attenuation rate is 30%.
Claims (24)
1. a membrane component, it is characterized in that, described membrane component comprises diaphragm, water inlet flows into the water inlet end of described diaphragm, waste water flows out wastewater effluent end and the pure water end of the pure water described diaphragm of outflow of described diaphragm, described membrane component also includes the water inlet end electrode being located in described water inlet and the pure water termination electrode being located in described pure water, described pure water termination electrode is connected with power cathode, described water inlet end electrode is connected with positive source, described water inlet end electrode zone and described water inlet flow into the distance that the distance of the water inlet end of described diaphragm flows out the wastewater effluent end of described diaphragm more than described water inlet end electrode zone with described waste water.
2. membrane component as claimed in claim 1, wherein, described water inlet end electrode is positioned at the influent side on described diaphragm, and/or the pure water side that described pure water termination electrode is positioned on described diaphragm.
3. membrane component as claimed in claim 1, wherein, described water inlet end electrode zone and distance B of described wastewater effluent end or B ' >=2cm.
4. membrane component as claimed in claim 1 or 2, wherein, a length of described diaphragm in described pure water termination electrode region is on water inlet bulk flow direction the 1/3～1/2 of effective length；The width in described pure water termination electrode region is be perpendicular on water bulk flow direction effective diaphragm width 1/2～1.
5. membrane component as claimed in claim 1 or 2, wherein, described pure water termination electrode region is more than 80% with the registration of described water inlet end electrode zone.
6. membrane component as claimed in claim 1 or 2, wherein, described pure water termination electrode region is more than 90% with the registration of described water inlet end electrode zone.
7. membrane component as claimed in claim 1 or 2, wherein, described pure water termination electrode region is completely superposed with described water inlet end electrode zone.
8. membrane component as claimed in claim 1 or 2, wherein, described membrane component also has adhesive area, described water inlet end electrode zone and described pure water termination electrode region and avoids the adhesive area of described diaphragm.
9. membrane component as claimed in claim 1 or 2, wherein, described membrane component also includes pure water selvage guide and water inlet grid, and described pure water termination electrode is arranged on described pure water selvage guide, and described water inlet end electrode arrangements is in described water inlet grid.
10. membrane component as claimed in claim 1 or 2, wherein, forms the anti-tartar electric current of 15mA～200mA between described water inlet end electrode and described pure water termination electrode.
11. profits require the membrane component described in 1 or 2, wherein, form the anti-tartar electric current of 20～100mA between described water inlet end electrode and described pure water termination electrode.
12. membrane components as claimed in claim 1 or 2, wherein, described water inlet end electrode and/or pure water termination electrode independently be thread, lamellar, tabular or mesh electrode.
13. membrane components as claimed in claim 1 or 2, wherein, described diaphragm is reverse osmosis membrane or NF membrane.
14. membrane components as claimed in claim 1 or 2, wherein, described membrane component is wound membrane element, collapsible membrane component, hollow fibre membrane component or plate and frame membrane component.
15. membrane components as claimed in claim 1 or 2, wherein, described pure water termination electrode pulls out from pure water central canal, water inlet end or waste water end, and through the part of water inlet and/or waste water, pure water termination electrode is carried out insulation processing.
16. 1 kinds of water treatment facilities, it is characterised in that described device comprises the membrane component described in any one of claim 1～15.
17. water treatment facilities as claimed in claim 16, it is characterized in that, also include that the water storage device being connected with pure water water side and membrane component water inlet end are sequentially connected the pump and prefilter element connect, be provided with the reflux pipe being connected to membrane component water inlet end in the pure water water side of described membrane component.
18. water treatment facilities as claimed in claim 17, it is characterised in that described pipeline is connected between described prefilter element and described pump.
19. 1 kinds of method for treating water, it is characterised in that use the membrane component as described in any one of claim 1～15 to process water, wherein, electrifying electrodes stops carrying out when controlling the water circulation runs at described membrane component, is shutdown energising.
20. methods as claimed in claim 19, wherein, the controlling the water circulation running of described membrane component is divided into and being run multiple times, and shuts down energising at least one times at the laggard row of controlling the water circulation end of run, and the conduction time of described electrode is 10～50 minutes.
21. methods as claimed in claim 20, wherein, the conduction time of described electrode is 20～40 minutes.
22. methods as claimed in claim 20, wherein, electrifying electrodes is divided into and repeatedly carrying out, every time energising 5～15 minutes, and after energising terminates every time, controlling the water circulation runs 1～3 minute.
23. methods as described in claim 19 or 20, wherein, before described membrane component is shut down, with the influent side of diaphragm described in pure water rinsing.
24. methods as described in claim 19 or 20, wherein, pure water rinses the influent side of described diaphragm before returning to film in the way of backflow.
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| CN201410384072.0A CN104096483B (en) | 2014-08-06 | 2014-08-06 | A kind of membrane component, the device using this membrane component and method for treating water |
| PCT/CN2015/086209 WO2016019880A1 (en) | 2014-08-06 | 2015-08-06 | Membrane element, device and water treatment method using membrane element |
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| CN201410384072.0A CN104096483B (en) | 2014-08-06 | 2014-08-06 | A kind of membrane component, the device using this membrane component and method for treating water |
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| CN104096483B (en) * | 2014-08-06 | 2016-08-03 | 艾欧史密斯（南京）水处理产品有限公司 | A kind of membrane component, the device using this membrane component and method for treating water |
| CN104671536A (en) * | 2015-01-30 | 2015-06-03 | 艾欧史密斯（上海）水处理产品有限公司 | Membrane element and water treatment device |
| CN104843912B (en) * | 2015-05-11 | 2020-03-13 | 艾欧史密斯（南京）水处理产品有限公司 | Filter device and cleaning method thereof |
| CN105502818A (en) * | 2015-12-11 | 2016-04-20 | 凯天环保科技股份有限公司 | Membrane component and MBR (Membrane Biological Reaction) system applying same |
| CN106422782A (en) * | 2016-07-08 | 2017-02-22 | 苏州科尔净净化科技有限公司 | Efficient roll type filter element |
| CN106474925A (en) * | 2016-10-17 | 2017-03-08 | 珠海格力电器股份有限公司 | Reverse osmosis membrane element and water purification device |
| CN108421416B (en) * | 2017-02-14 | 2023-06-30 | 佛山市顺德区美的饮水机制造有限公司 | Spiral wound reverse osmosis membrane element and water purifier |
| CN109911988B (en) * | 2019-03-13 | 2024-07-19 | 广东栗子科技有限公司 | Integrated filter element and filter system with same |
| CN110357214A (en) * | 2019-08-22 | 2019-10-22 | 吴红平 | Platform above formula filters water purification system and its process for purifying water |
| CN114288860B (en) * | 2021-12-08 | 2022-09-23 | 深圳市超纯环保股份有限公司 | Reverse osmosis membrane element and purification system |
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| DE3876968T2 (en) * | 1987-07-17 | 1993-05-19 | Battelle Memorial Institute | ELECTROFILTER AND METHOD FOR PREVENTING PRECIPITATION IN CROSS-CURRENT FILTRATION. |
| GB8901581D0 (en) * | 1989-01-25 | 1989-03-15 | Alcan Int Ltd | Filter cleaning |
| GB9525558D0 (en) * | 1995-12-14 | 1996-02-14 | Head Philip | A system for coiled tubing |
| JPH10323545A (en) * | 1997-05-23 | 1998-12-08 | Kurita Water Ind Ltd | Membrane separator |
| CN1235668C (en) * | 2003-11-06 | 2006-01-11 | 上海交通大学 | E-Fenton oxidation technique of dirty blocking agent in reverse osmosis concentrating liquid |
| US9901881B2 (en) * | 2009-11-25 | 2018-02-27 | Cms Innovations Pty Ltd | Membrane and membrane separation system |
| CN204107340U (en) * | 2014-06-27 | 2015-01-21 | 艾欧史密斯（上海）水处理产品有限公司 | Membrane component and water treatment facilities |
| CN104084048B (en) * | 2014-06-27 | 2016-12-07 | 艾欧史密斯（南京）水处理产品有限公司 | Membrane component, water treatment facilities and method for treating water |
| CN204159229U (en) * | 2014-08-06 | 2015-02-18 | 艾欧史密斯（上海）水处理产品有限公司 | The device of a kind of membrane component and this membrane component of use |
| CN104096483B (en) * | 2014-08-06 | 2016-08-03 | 艾欧史密斯（南京）水处理产品有限公司 | A kind of membrane component, the device using this membrane component and method for treating water |
-
2014
- 2014-08-06 CN CN201410384072.0A patent/CN104096483B/en active Active
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2015
- 2015-08-06 WO PCT/CN2015/086209 patent/WO2016019880A1/en active Application Filing
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| Publication number | Publication date |
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| CN104096483A (en) | 2014-10-15 |
| WO2016019880A1 (en) | 2016-02-11 |
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