CN104096483A - Membrane element, device and water processing method using the membrane element - Google Patents
Membrane element, device and water processing method using the membrane element Download PDFInfo
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- CN104096483A CN104096483A CN201410384072.0A CN201410384072A CN104096483A CN 104096483 A CN104096483 A CN 104096483A CN 201410384072 A CN201410384072 A CN 201410384072A CN 104096483 A CN104096483 A CN 104096483A
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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 invention relates to a membrane element, a device and a water processing method using the membrane element. The membrane element comprises a membrane, a water inlet end for allowing water to flow into the membrane, a waste water discharge end for discharging waste water from the membrane, a pure water end for discharging pure water from the membrane, a water inlet end electrode arranged in the inflow water, and a pure water end electrode arranged in the pure water, the pure water end electrode is connected with the cathode of a power supply, the water inlet end electrode is connected with the anode of the power supply, and the distance between the water inlet end electrode region and the water inlet end for allowing the water to flow into the membrane is larger than the distance between the water inlet end electrode region and the waste water discharge end for discharging the waste water from the membrane.
Description
Technical field
The present invention relates to a kind of novel electrochemistry self-cleaning membrane component, the device that uses this membrane component and method for treating water, particularly a kind of novel dissolve inorganic salts fouling, improve membrane component membrane component and the device in service life.
Background technology
Reverse-osmosis membrane element is the core component of Membrane Separation for Water Treatment, can remove microorganism in water source, ion etc., obtains pure water.Current existing reverse-osmosis membrane element is mainly under certain pressure, by reverse osmosis membrane, to reach the object of pure water preparation.In the real process of using reverse-osmosis membrane element to process running water, find that the wastewater effluent end producing has higher concentration and hardness, cause membrane component to be easy to occur inorganic salts fouling, reduce the service life of membrane component.In the reverse osmosis treatment system of middle and small scale, the mode that conventionally adopts and add antisludging agent, reduces the rate of recovery reduces the fouling of membrane surface.But add antisludging agent when reducing fouling, caused again the increase of waste water.
Summary of the invention
Technical problem
Technical problem to be solved by this invention is the inorganic salts scale problems that solves membrane surface in counter-infiltration or NF membrane element, extends the membrane component life-span, and improves to a certain extent the membrane component rate of recovery.
Technical scheme
The exploitation of reverse osmosis/nanofiltration membrane element of the present invention is on the basis of existing reverse osmosis/nanofiltration membrane element, adopts electrochemical method 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 have added respectively electrode in the water inlet of traditional reverse osmosis/nanofiltration membrane element and pure water end, and described electrode lays respectively at reverse osmosis/nanofiltration membrane sheet both sides.
According to a first aspect of the invention, a kind of electrochemistry self-cleaning membrane component is provided, 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 the wastewater effluent end of described diaphragm and the pure water end that pure water flows out described diaphragm, described membrane component also comprises the water inlet end electrode of being located in described water inlet and is located at the pure water termination electrode in described pure water, described pure water termination electrode is connected with power cathode, described water inlet end electrode is connected with positive source, the distance that described water inlet end electrode zone and described water inlet flow into the water inlet end of described diaphragm is greater than the distance that described water inlet end electrode zone and described waste water flow out the wastewater effluent end of described diaphragm.
In above-mentioned membrane component, described water inlet end electrode is positioned at the influent side on described diaphragm, and/or described pure water termination electrode is positioned at the pure water side on described diaphragm.
In above-mentioned membrane component, distance B or the B ' >=2cm of described water inlet end electrode zone and described wastewater effluent end.
In above-mentioned membrane component, 1/3～1/2 of the length in the described pure water termination electrode region effective length that is described diaphragm on water inlet main body flow direction; The width in described pure water termination electrode region is perpendicular to 1/2～1 of effective diaphragm width on water inlet main body flow direction.
In above-mentioned membrane component, the registration of described pure water termination electrode region and described water inlet end electrode zone is more than 80%, is preferably more than 90%, more preferably overlaps substantially completely.
In above-mentioned membrane component, described membrane component also has adhesive area, and the adhesive area of described diaphragm is avoided in described water inlet end electrode zone and described pure water termination electrode region.
In above-mentioned membrane component, described membrane component also comprises pure water selvage guide and water inlet graticule mesh, and described pure water termination electrode is arranged on described pure water selvage guide, and described water inlet end electrode is arranged in described water inlet graticule mesh.
In above-mentioned membrane component, between described water inlet end electrode and described pure water termination electrode, form 15mA～200mA, preferably the anti-tartar electric current of 20～100mA.
In above-mentioned membrane component, described water inlet end electrode and/or pure water termination electrode are thread, sheet, tabular or mesh electrode independently.
In above-mentioned membrane component, described diaphragm is reverse osmosis membrane or NF membrane.
In above-mentioned membrane component, described membrane component is rolled film 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 tube, water inlet end or waste water end, and pure water termination electrode is carried out to insulation processing through the part of water inlet and/or waste water.
According to a second aspect of the invention, provide a kind of water treatment facilities, described device comprises above-mentioned membrane component.
In above-mentioned water treatment facilities, also comprise the water storage device being connected with pure water water side, the pump being connected successively with membrane component water inlet end and preposition filter element, in the pure water water side of described membrane component, be provided with the return line that is connected to membrane component water inlet end.
In above-mentioned water treatment facilities, described pipeline is connected between described preposition filter element and described pump.
A method for treating water, is characterized in that, uses above-mentioned membrane component to process water, and wherein, electrifying electrodes is carried out when described membrane component stops water running processed.
In said method, the water running process processed of described membrane component is divided into repeatedly operation, at least once shuts down energising after water running processed finishes, and be 10～50 minutes the conduction time of described electrode, is preferably 20～40 minutes.
In said method, electrifying electrodes is divided into repeatedly carries out, switch on 5～15 minutes at every turn, and after each energising finishes, water running processed 1～3 minute.
In said method, before described membrane component is shut down, with the influent side of diaphragm described in pure water rinsing.
In said method, pure water is got back to the influent side that rinses described diaphragm before film in the mode refluxing.
Technique effect
Model electrochemical self-cleaning reverse osmosis/nanofiltration membrane element of the present invention has kept the advantage of former membrane component equipment with high desalinization, and can be by applying certain electric current, can be in the situation that not adding any chemical reagent, dissolve the fouling that membrane surface forms, increase membrane component service life; Meanwhile, can improve to a certain extent the rate of recovery.
Accompanying drawing explanation
Fig. 1 is that the present invention is for a kind of schematic diagram of an embodiment of membrane component of form;
Fig. 2 is that the present invention is for the schematic diagram of an embodiment of the membrane component of another kind of form;
Fig. 3 is that the present invention is for the schematic diagram of an embodiment of the membrane component of another kind of form;
Fig. 4 is a kind of electrochemistry self-cleaning water treating apparatus schematic diagram;
In above-mentioned accompanying drawing, 1. represent diaphragm; 2. represent water inlet graticule mesh; 3. represent pure water selvage guide; 4. represent collector pipe; 5. represent pure water termination electrode; 6. represent water inlet end electrode; 7. represent limit glue and sealing compound; 8. represent marine glue district.A represents wire electrode or the effective length of electrode slice (plate) layout area on water inlet current main direction; B and B ' represent the minimum range that wire electrode or electrode slice (plate) are arranged district's distance wastewater effluent mouth in waste water main body water outlet direction.
In Fig. 4,1 represents preposition filter core; 2 represent booster pump; 3 represent membrane component; 4 represent water butt; 5 represent pure water return valve.
The specific embodiment
In the present invention, the rate of recovery=pure water flow/flow of inlet water.
Normal flow is the pure water flow of under standard conditions (25 ℃).
Static pressure=external pressure-osmotic pressure.
Pure water flow rate is normal flow and the ratio of static pressure.Pure water flow rate attenuation rate is than initial pure water flow rate, the percentage that current pure water flow rate declines.
Multi-form membrane component, water (flow) direction is different.As shown in fig. 1, current enter membrane component along the direction of arrow, after converging, along the direction (be the length direction of membrane component) substantially vertical with water inlet direction (being the direction of arrow), flow in membrane component.In the case, water inlet current main direction just refers to the length direction of membrane component, A represents wire electrode or the distance of electrode slice (plate) layout area on water inlet current main body flow direction, and meanwhile, B represents wire electrode or electrode slice (plate) distance nearest apart from wastewater effluent end.In Fig. 1, the wire that connects pure water termination electrode is arranged through collector pipe.
In Fig. 2, current enter membrane component along the direction of arrow, then along the direction of arrow, flow out membrane component.In the case, water inlet current main direction just refers to the width of membrane component, and A represents wire electrode or the distance of electrode slice (plate) layout area on water inlet current main body flow direction.B ' expression wire electrode or electrode slice (plate) are apart from the minimum distance of wastewater effluent end.
In Fig. 3, current enter membrane component along the direction of arrow, after converging, along the direction (be the length direction of membrane component) substantially vertical with water inlet direction (being the direction of arrow), flow in membrane component.In the case, water inlet current main direction just refers to the length direction of membrane component, A represents wire electrode or the distance of electrode slice (plate) layout area on water inlet current main body flow direction, and meanwhile, B represents wire electrode or electrode slice (plate) distance nearest apart from wastewater effluent end.In Fig. 3, connect the wire (not shown) of pure water termination electrode through collector pipe layout, the part of now pure water termination electrode contact water inlet and/or waste water is carried out insulation processing.
In Fig. 4; after water inlet is filtered by preposition filter core 1; under the effect of booster pump 2, enter into membrane component 3; the pure water producing can be stored into a tank; be in water butt 4; shut down before energising, the pure water that employing obtains rinses membrane component 3 before getting back to pump in the mode refluxing, and guarantees that in galvanization, the waste strength in membrane component is lower.On pure water current return circuit, pure water return valve 5 can be set.
In addition, in membrane component of the present invention or device, can there is not shown control part, to control time of energising and electric current etc.
For multi-form membrane component, the setting of electrode is: water inlet end arrangement of electrodes is in every one page water inlet graticule mesh, near wastewater effluent end, arrange, the distance that makes described water inlet end electrode zone and described water inlet flow into the water inlet end of described diaphragm is greater than the distance that described water inlet end electrode zone and described waste water flow out the wastewater effluent end of described diaphragm, and the minimum distance of water inlet end electrode zone and wastewater effluent end is more than or equal to 2cm.By this feature, can guarantee to shut down in galvanization the H that water inlet end electrode produces
+can directly dissolve the inorganic salts 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 guarantee certain current strength.Lap is too small, can cause the resistance between two electrodes excessive, thereby affect descale effect.This lap is more than 80%, is preferably more than 90%, more preferably overlaps substantially completely.
In the present invention, 1/3～1/2 of the length of the described pure water termination electrode effective length that is described diaphragm on water inlet main body flow direction, thus guarantee certain electric current, guarantee the OH producing at pure water end during energising simultaneously
-can guarantee that pure water pH reaches alkalescent scope.
Electrode can be positioned at diaphragm both sides, and electrode can directly be installed on diaphragm.In addition, described membrane component can also comprise pure water selvage guide and water inlet graticule mesh, and electrode can not be directly installed on diaphragm yet, and is mounted in the water inlet graticule mesh and 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 arranged in water graticule mesh.Electrode material to water inlet end, is necessary for inert electrode material, and as gold, platinum, silver, iridium coating layer titanium silk, platinum coated titanium silk, macromolecule conducting material etc., pure water termination electrode material is can conductive material, preferably uses inert material.Water inlet and the electrode form of pure water end can be thread, sheets, 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, can be also other pellicles.
Described membrane component can have adhesive area, and the adhesive area of described diaphragm should be avoided in described water inlet end electrode zone and described pure water termination electrode region.
In the present invention, described membrane component can also comprise collector pipe.The electrode of pure water end can concentrate in together by collector pipe and pass with putamina pure water end and be connected, and also can be pulled out by water inlet end or waste water end.To pure water termination electrode, through the part of water inlet and/or waste water, can carry out insulation processing.Water inlet end electrode can be connected with putamina water inlet end.Pure water end is connected with anodal with the negative pole of dc source respectively with water inlet end electrode.
Described membrane component can be rolled film element, collapsible membrane component, hollow fibre membrane component or plate and frame membrane component.These membrane components are known in the art.
The present invention also provides a kind of water treatment facilities, and described device comprises above-mentioned membrane component.More specifically, as shown in Figure 3, described device also comprises pump and the preposition filter element being connected successively with membrane component water inlet end, pure water water side at described membrane component is provided with the pipeline that is connected to membrane component water inlet end, pure water is drained to the water inlet end of membrane component with the remaining dirt of flushing membrane element, preferred described pipeline is connected between described preposition filter element and described pump.In addition, water side comprises wastewater effluent end and pure water water side.
In the present invention, need to form the anti-tartar electric current of 15mA～200mA between water inlet end electrode and pure water termination electrode, anti-tartar electric current is 20～100mA preferably.Electric current is too small, cannot guarantee enough anti-tartar effects.Electric current is excessive, may cause ion to gather, and increases fouling tendency.
The present invention also provides a kind of method for treating water, wherein uses membrane component described above to process water.
Generally speaking, energising is to carry out when water processed.Under power on condition, connect anodal former water end (W.E.) and produce H
+thereby, dissolve the fouling that membrane surface produces, improve membrane component service life.In addition, the pure water end generation OH that connects negative pole
-, during water processed, can adjusting water outlet be alkalescent.Meanwhile, can improve to a certain extent the rate of recovery.But there is following defect in technique scheme: owing to containing a certain amount of Ca in water inlet
2+and Mg
2+deng, make it be easy at membrane surface, assemble under electric field action, thereby cause near fouling electrode comparatively serious.During operation, extra electric field easily causes near comparatively serious scale formation electrode.In contrast, in the present invention, membrane component is electrode no power in running, and energising is carried out after shutdown.Adopt which, applicant surprisingly finds, can effectively avoid near the fouling of electrode, and pure water end can produce the pure water of high pH value simultaneously, and during operation, the adjustable water outlet of pure water of the high pH value of this part is alkalescent.Meanwhile, applicant finds, by shutting down front employing pure water, the high-concentration waste water in membrane component is cleaned, and then after-applied electric field.Adopt pure water to rinse and the high-concentration waste water in element can be replaced into the water that ion concentration is low, thereby avoided assembling because electric field exists the ion causing, can avoid better near the fouling of electrode, be therefore more preferably.Described pure water can directly be used the pure water making in the present invention, gets final product so that pure water cleans diaphragm before being back to diaphragm.
That is, the method according to this invention, electrifying electrodes is carried out when described membrane component stops water running processed, is and shuts down energising.The water running process processed of described membrane component can be divided into repeatedly operation, and the time of water running processed, according to needing to determine for water, is not particularly limited.After water running processed finishes, can shut down at least one times energising, can be 10～50 minutes the conduction time of electrode, is preferably 20～40 minutes.That is, the flow process of process for preparing water can be: water-shutdown processed (energising)-water-shutdown processed (energising)-water-shutdown processed (energising) ..., in this process, shut down energising and at least carry out once, after some water processed, can only shut down no power.Therefore, with " shutting down (energising) ", represent, energising is selectively carried out, as long as meet, shuts down at least one times energising.In addition, in shutting down galvanization, the energising of electrode can be carried out several times, switches on 5～15 minutes at every turn, after each energising finishes, and water running processed 1～3 minute.Adopt this method of operation, can be after energising finish, the pure water rinsing that use makes is diaphragm once, can obtain better 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 making, wherein pure water is got back to the influent side that rinses described diaphragm before film in the mode refluxing.
Embodiment
Embodiment 1
In the water inlet graticule mesh of 1810-75G-ss lateral flow type (structure of membrane component shown in Fig. 1) reverse-osmosis membrane element, add the long 0.5mm diameter yttrium oxide coated titanium silk of 7 10cm as electrode, in pure water selvage guide, add the yttrium oxide coated titanium silk of the long 0.5mm diameter of 7 5cm as electrode, wherein A is the length of pure water arrangement of electrodes region minor face, be 5cm, B is the distance apart from wastewater effluent end from the nearest wire electrode of wastewater effluent end, for 5cm, the rolled film element of preparing 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, adopt the mode that before shutting down, pure water backflow is rinsed to clean membrane component.Particularly, water running process processed is divided into 3 times carries out, at the laggard electricity that works of each water running processed, clean, and each about 30min of energising that shuts down, finally water processed is full to water.Adopt 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
In the water inlet graticule mesh of 1810-75G (structure of membrane component shown in Fig. 2) reverse-osmosis membrane element, add the long 0.5mm diameter yttrium oxide coated titanium silk of 7 10cm as electrode, in pure water selvage guide, add the yttrium oxide coated titanium silk of the long 0.5mm diameter of 7 10cm as electrode, wherein A is the length of pure water arrangement of electrodes region minor face, be 10cm, B is the distance apart from wastewater effluent end from the nearest wire electrode of wastewater effluent end, for 5cm, the rolled film element of preparing 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, adopt the mode that before shutting down, pure water backflow is rinsed to clean membrane component.Running is divided into 3 times to carry out, and the laggard electricity that works of water running processed cleans at every turn, each about 20min of energising that shuts down, and finally water processed is full to water.Adopt 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
As described in case study on implementation 1, prepare membrane component, before adopt shutting down, the pure water mode of rinsing that do not reflux is cleaned membrane component, and running is divided into 3 times to carry out, and the laggard electricity that works of water running processed cleans at every turn, each about 30min of energising that shuts down, and finally water processed is full to water.Adopt 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 reduced to 30%.Compare with embodiment 1, when its pure water flow rate decays to 30%, water amount is less, can find out pure water backflow cleaning performance better than not refluxing.
Embodiment 4
As described in case study on implementation 1, prepare membrane component; when its water inlet and pure water termination electrode overlapping area are 10%; adopt the mode that before shutting down, pure water backflow is rinsed to clean membrane component; water running process processed is divided into 3 times and carries out; the laggard electricity that works of each water running processed cleans; each about 40min of energising that shuts down, finally water processed is full to water.Adopt this method of operation, the pure water pH in pressure pot is 7, and almost pure water pH is identical when not switching on, and when membrane component pure water water amount reaches 4t, pure water flow rate attenuation rate is 35%.
Embodiment 5
As described in case study on implementation 1, prepare membrane component; when its water inlet and pure water termination electrode overlapping area are 80%; adopt the mode that before shutting down, pure water backflow is rinsed to clean membrane component; water running process processed is divided into 3 times and carries out; at the laggard electricity that works of water running processed for the second time, clean; shut down the about 25min of energising, finally water processed is full to water.Adopt 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
As described in case study on implementation 1, prepare membrane component; when its water inlet and pure water termination electrode overlapping area are 80%; adopt the mode that before shutting down, pure water backflow is rinsed to clean membrane component; water running process processed is divided into 3 times carries out, and water running processed finishes the rear shutdown about 25min that switches at every turn, and this shutdown energising is divided into 2 times and carries out; about 10min for the first time switches on; then stop energising, water processed 2 minutes, then shut down energising approximately 15 minutes.Finally water processed is full to water.Adopt 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 (20)
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 the wastewater effluent end of described diaphragm and the pure water end that pure water flows out described diaphragm, described membrane component also comprises the water inlet end electrode of being located in described water inlet and is located at the pure water termination electrode in described pure water, described pure water termination electrode is connected with power cathode, described water inlet end electrode is connected with positive source, the distance that described water inlet end electrode zone and described water inlet flow into the water inlet end of described diaphragm is greater than the distance that described water inlet end electrode zone and described waste water flow out the wastewater effluent end of described diaphragm.
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 described pure water termination electrode is positioned at the pure water side on described diaphragm.
3. membrane component as claimed in claim 1, wherein, distance B or the B ' >=2cm of described water inlet end electrode zone and described wastewater effluent end.
4. membrane component as claimed in claim 1 or 2, wherein, the length in described pure water termination electrode region be described diaphragm on water inlet main body flow direction effective length 1/3～1/2; The width in described pure water termination electrode region is perpendicular to 1/2～1 of effective diaphragm width on water inlet main body flow direction.
5. membrane component as claimed in claim 1 or 2, wherein, the registration of described pure water termination electrode region and described water inlet end electrode zone is more than 80%, is preferably more than 90%, more preferably overlaps substantially completely.
6. membrane component as claimed in claim 1 or 2, wherein, described membrane component also has adhesive area, and the adhesive area of described diaphragm is avoided in described water inlet end electrode zone and described pure water termination electrode region.
7. membrane component as claimed in claim 1 or 2, wherein, described membrane component also comprises pure water selvage guide and water inlet graticule mesh, and described pure water termination electrode is arranged on described pure water selvage guide, and described water inlet end electrode is arranged in described water inlet graticule mesh.
8. membrane component as claimed in claim 1 or 2, wherein, forms 15mA～200mA between described water inlet end electrode and described pure water termination electrode, preferably the anti-tartar electric current of 20～100mA.
9. membrane component as claimed in claim 1 or 2, wherein, described water inlet end electrode and/or pure water termination electrode are thread, sheet, tabular or mesh electrode independently.
10. membrane component as claimed in claim 1 or 2, wherein, described diaphragm is reverse osmosis membrane or NF membrane.
11. membrane components as claimed in claim 1 or 2, wherein, described membrane component is rolled film element, collapsible membrane component, hollow fibre membrane component or plate and frame membrane component.
12. membrane components as claimed in claim 1 or 2, wherein, described pure water termination electrode pulls out from pure water central tube, water inlet end or waste water end, and pure water termination electrode is carried out to insulation processing through the part of water inlet and/or waste water.
13. 1 kinds of water treatment facilities, is characterized in that, described device comprises the membrane component described in claim 1～12 any one.
14. water treatment facilities as claimed in claim 13, it is characterized in that, also comprise the water storage device being connected with pure water water side, the pump being connected successively with membrane component water inlet end and preposition filter element, in the pure water water side of described membrane component, be provided with the return line that is connected to membrane component water inlet end.
15. water treatment facilities as claimed in claim 14, is characterized in that, described pipeline is connected between described preposition filter element and described pump.
16. 1 kinds of method for treating water, is characterized in that, use the membrane component as described in claim 1～12 any one to process water, and wherein, electrifying electrodes is carried out when described membrane component stops water running processed, are and shut down energising.
17. methods as claimed in claim 16, wherein, the water running process processed of described membrane component is divided into repeatedly operation, at least once shuts down energising after water running processed finishes, and be 10～50 minutes the conduction time of described electrode, is preferably 20～40 minutes.
18. methods as claimed in claim 17, wherein, electrifying electrodes is divided into repeatedly carries out, switch on 5～15 minutes at every turn, after each energising finishes, water running processed 1～3 minute.
19. methods as described in claim 16 or 17, wherein, before described membrane component is shut down, with the influent side of diaphragm described in pure water rinsing.
20. methods as described in claim 16 or 17, wherein, pure water is got back to the influent side that rinses described diaphragm before film in the mode refluxing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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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 CN104096483B (en) | 2016-08-03 |
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| 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 |
| CN104843912A (en) * | 2015-05-11 | 2015-08-19 | 艾欧史密斯（上海）水处理产品有限公司 | Filter device and cleaning method thereof |
| WO2016019880A1 (en) * | 2014-08-06 | 2016-02-11 | 艾欧史密斯（南京）水处理产品有限公司 | Membrane element, device and water treatment method using membrane element |
| 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 |
| CN108421416A (en) * | 2017-02-14 | 2018-08-21 | 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 |
| CN109911988A (en) * | 2019-03-13 | 2019-06-21 | 佛山市云米电器科技有限公司 | Integrated form filter core and filtration system with the filter core |
| CN114288860A (en) * | 2021-12-08 | 2022-04-08 | 深圳市超纯环保股份有限公司 | Reverse osmosis membrane element and purification system |
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| WO2016019880A1 (en) * | 2014-08-06 | 2016-02-11 | 艾欧史密斯（南京）水处理产品有限公司 | Membrane element, device and water treatment method using membrane element |
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| 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 |
| CN104843912A (en) * | 2015-05-11 | 2015-08-19 | 艾欧史密斯（上海）水处理产品有限公司 | Filter device and cleaning method thereof |
| WO2016179863A1 (en) * | 2015-05-11 | 2016-11-17 | 艾欧史密斯（南京）水处理产品有限公司 | Filter device and washing method therefor |
| US10814283B1 (en) | 2015-05-11 | 2020-10-27 | A.O.Smith (China) Water Treatment Products Co., Ltd. | Filter device and washing method therefor |
| 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 |
| CN108421416A (en) * | 2017-02-14 | 2018-08-21 | 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 |
| CN109911988A (en) * | 2019-03-13 | 2019-06-21 | 佛山市云米电器科技有限公司 | Integrated form filter core and filtration system with the filter core |
| CN114288860A (en) * | 2021-12-08 | 2022-04-08 | 深圳市超纯环保股份有限公司 | Reverse osmosis membrane element and purification system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104096483B (en) | 2016-08-03 |
| WO2016019880A1 (en) | 2016-02-11 |
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