CN202688048U - Electrolyzing device with membrane filtration function - Google Patents
Electrolyzing device with membrane filtration function Download PDFInfo
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- CN202688048U CN202688048U CN 201220168654 CN201220168654U CN202688048U CN 202688048 U CN202688048 U CN 202688048U CN 201220168654 CN201220168654 CN 201220168654 CN 201220168654 U CN201220168654 U CN 201220168654U CN 202688048 U CN202688048 U CN 202688048U
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Abstract
The utility model relates to an electrolyzing device with a membrane filtration function. The electrolyzing device is provided with a casing and an electrode group. A water inlet and an air inlet are arranged at the bottom of the casing, the water inlet is connected with a water inflow pipeline through a pipeline, the air inlet is connected with an aerating device through a pipeline, the upper portion and the lower portion of the casing are provided with an overflow port and a drain outlet respectively, and the overflow port and the drain outlet are connected with an outside sewage draining pipeline through pipelines. The electrode group is provided with a support, a cathode, an anode and a water outlet. The electrode group is fixed on the casing through the support, the cathode is a metal membrane assembly having a filtering separation function, and the anode is one of a metal anode, an alloy anode, a carbon anode and a titanium anode and the like. One end of the anode is provided with a connecting plate for being connected with a power source, the connecting plate is provided with an anode binding post and a cathode binding post, a filtering water-collecting pipe and a filtering backwashing pipe are arranged at the other end of the cathode, the filtering water-collecting pipe is connected with a water suction pump, and the filtering backwashing pipe is sequentially connected with a backwashing pump and a chemical adding pipe, and functions of electrolyzation and membrane filtration are integrated.
Description
Technical field
The utility model relates to a kind of electrolyzer, particularly relates to a kind of electrolyzer with membrane filtration function.
Background technology
In recent years, electrochemical treatment is one of water technology that development comparatively enlivens in the materialization treatment technology, and it mainly is to utilize galvanic principles or electrolysis principle that waste water is processed.Current, various types of electrolyzers and micro-electrolysis device are arranged, be applied in the processing of sanitary wastewater and trade effluent etc.But existing electrolyzer exposes some problems in operational process, the one, and consumption of electrode is large, the electrode materials polluted-water; The 2nd, the electric density of electrode is little, and overpotential is high, and operating voltage is higher, and the electric energy application efficiency is not high, and energy consumption is large; The 3rd, after the electrolysis, solid-liquid separation effect is undesirable, need to carry out the secondary solid-liquid separation, and technical process is long.
Metallic membrane is that a kind of pore size distribution is more even, and the aperture is the micropore filtering film of 0.01～10 μ m.Side at film imposes suitable pressure, just can sift out the solute molecule less than the aperture, with the isolated molecule amount greater than 1000 dalton, the particle diameter particle greater than 10nm.Filtering membrane is one of polymeric membrane for separation of developing the earliest, and in the sixties in 20th century, membrane filter appts has just been realized industrialization.The industrial application of membrane filtration is very extensive, has become one of Novel chemical engineering, biotechnology, foodstuffs industry unit operation, in, concentrated, purifying biological goods, pharmaceutical products and foodstuffs industry; The terminal processing device that also is used for blood treatment, wastewater treatment and ultrapure water preparation.Successfully utilize membrane filtration to carry out the concentrated purification of herbal medicine in China.Along with the progress of technology, the screening of filtering membrane, separation, concentrating function are also constantly improved and strengthened, and be also increasing to the contribution of human society.
In recent years, film is processed and is the comparatively active water technology of development in the materialization treatment technology, and is current, has all types of membrane filter apptss to be applied in the processing of Drinking Water purification, municipal wastewater, industrial organic waste water, electroplating wastewater, oil field waste etc.But existing membrane filter appts exposes some problems equally in operational process: the one, only have screening function, and pollutent can't further be degraded; The 2nd, producing water ratio is lower, and the condensed water generation is large, and running cost is higher; The 3rd, the easy contamination and plugging of membrane module, cleaning frequency is high, dosage is large, and the generation sludge quantity is large, existence causes secondary pollution to environment; The 4th, the fresh water water quality that produces is relatively poor.Therefore, electrolysis tech and membrane filtration isolation technique all are still waiting further Improvement and perfection.
Chinese patent CN102295326A discloses a kind of apparatus for electrolyzing, comprise electrolysis cells, water tank, gas liquid mixer, gas-liquid separator, power supply, electrolysis cells comprises housing, case top offers water-in, its below is provided with anode titanium to electric orifice plate, the anode-catalyzed plate of β-PbO2, solid polyelectrolyte membrane, Pt/C cathode catalysis plate, cathode titanium is given electric orifice plate, water tank bottom is provided with the interlock interface, top movable is provided with top cover, top cover is provided with the ozone vent pipe, water supplement port, water tank is provided with the ozone water relief outlet, gas liquid mixer comprises the mixing tank container, which is provided with the ozone entrance, water-in, the ozone water outlet, gas-liquid separator comprises separator vessel, which is provided with the hydrogen water inlet, the hydrogen discharge pipe, water port, positive source is connected with the electrolysis cells anode, and power cathode is connected with the electrolysis cells negative electrode.
Summary of the invention
The purpose of this utility model is to have the deficiencies such as function singleness, treatment effect are not good, processing efficiency is low for existing electrolyzer and membrane filter appts, provide that a kind of two neighboring pole operating voltage is extremely low, current density is large, energy consumption is less, electrical efficiency is higher, do not have consumption of electrode, can effective separation and the water pollutant of degrading, the electrolyzer with membrane filtration function that current collection solution and membrane filtration function are integrated.
The utility model is provided with housing and electrode group, is provided with water-in and inlet mouth at housing bottom, and water-in is connected with suction culvert by pipeline; Inlet mouth is connected with aerating apparatus by pipeline; Housing top, bottom are respectively equipped with overflow port, sewage draining exit, and overflow port is connected pipeline and all is connected with outside blow-off line with sewage draining exit;
Described electrode group is provided with support, negative electrode, anode and water outlet; Described electrode group is fixed on the housing by support, and described negative electrode is the metallic membrane assembly with filtering separation function, and described anode is a kind of in metal anode, alloy anode, carbon anode, the titanium anode etc.; One end of described negative electrode is provided with for the web plate that connects power supply, web plate is provided with anode terminal and cathode terminal, the other end of negative electrode is provided with and filters header and filter the backwash pipe, filters header and is connected with water suction pump, filters the backwash pipe and is connected with backwashing pump, chemical feed pipe successively.
Described housing can be provided with internal layer and skin, and internal layer can adopt the engineering plastics internal layer, and skin can adopt steel plate outer; Described housing can be circular shell or square casing etc.
Metallic membrane in the described metallic membrane assembly can be selected from a kind of in microfiltration membrane, ultra-filtration membrane, the nanofiltration membrane etc.Metal in the described metallic membrane can be selected from a kind of in nickel, nickelalloy, stainless steel, the titanium etc.
Described titanium anode surface can be coated with the nanoscale precious metal oxide coating, and described precious metal oxide coating has good catalytic properties; It is the coating of metal oxides of 10～35nm that described nanoscale precious metal oxide coating can adopt crystal grain.
Described anode can be tabular anode, circular-arc anode, right cylinder anode or meshed anode etc.
Distance between described electrode group two neighboring pole plate can be 1～50mm.
Operating voltage between described anode and negative electrode can be 1～18V, and current density can be 1～300mA/cm
2
The utility model is to collect the novel electrolyzer that a rice technology, catalysis technique, electrochemical techniques, membrane filtration isolation technique are integrated.When water was processed, electrolysis under lower voltage conditions produced the strong oxidizing property material of status nascendi, when having a large amount of chlorions to exist, generation be the chlorine [Cl] of status nascendi and the hydrogen [H] of status nascendi; When not having chlorion to exist, generation be the hydrogen [H] of oxygen [O], hydroxyl [OH] and the status nascendi of status nascendi, and following effect occurs:
1) the strong oxidizing property material of the status nascendi that produces of electrolysis is killed microorganism, bacterium, algae and the planktonic organism in the water and the come-up of being combined with a large amount of micro-bubbles that negative electrode produces is removed, and eliminates microorganism, bacterium, algae, planktonic pollution and also reduces turbidity;
2) under the strong oxidizing property material effect of the status nascendi that electric field and electrolysis produce, be difficult to biochemical macrocylc compound and long-chain compound generation open loop, chain-breaking reaction in the water, be changed into as being easy to biochemical small-molecule substance so that be difficult to biochemical macromolecular complex, improve simultaneously the B/C value, improve biodegradability, for subsequent disposal is created better biochemical condition;
3) the Quick Oxidation decomposition remains in organism in the waste water under the strong oxidizing property material effect of the status nascendi of electrolysis generation, reduces COD.
4) the strong oxidizing property material Quick Oxidation of the status nascendi of electrolysis generation decomposes chromophoric group and the auxochrome group that remains in coloring matter in the waste water, make it that chain rupture or open loop occur, make waste water decoloring, and the air supporting effect of a large amount of micro-bubbles of combined with cathode generation, effectively reduce chroma in waste water, reach the purpose of decolouring;
5) ammonia nitrogen in the strong oxidizing property material Quick Oxidation Decomposition Wastewater of the status nascendi of electrolysis generation reduces the ammonia nitrogen index in the water;
6) osmophore of the multiple radical (strong oxidizing property material) that produces of electrolysis in can oxygenolysis waste water removed the stench in the waste water;
7) under electric field action, on the one hand so that the materials such as the suspended substance in the water, colloid, charged corpuscle take off surely, positively charged ion in the water, negatively charged ion move to negative electrode and anode respectively on the other hand, in negative electrode and anode generation Effect of Electric Double Layer and the effect of many electricity layers, form precipitation and bring out throwing out, impel the materials such as tiny suspended substance, colloid, charged corpuscle to form thick flocs unit, the accelerating impurity sedimentation effectively reduces the contamination indexs such as SS, turbidity;
The hydrogen of a large amount of status nascendis that 8) negative electrode produces during electrolysis can form the hydrogen small bubbles, have air flotation effect, along with the come-up of bubble, can adhere to a large amount of lightweight suspension things, reach the effect that solid-liquid separation or liquid liquid separate, thereby further reduce SS, COD in the water, colourity, turbidity etc.;
9) the strong oxidizing property material of the status nascendi that produces of electrolysis is killed the biological pollution that microorganism, algae and planktonic organism in the water prevented metallic membrane, the hydrogen small bubbles of the hydrogen evolution of a large amount of status nascendis that cathode surface produces during simultaneously electrolysis have prevented that chemical substance and suspended substance from assembling in metallic film surface, prevent the pollution of film.
In sum, the existing electrolytic action of the utility model, condition of water quality in the time of can improving again into film, thereby reduce the problem of the easy contamination and plugging of membrane module, the producing water ratio of raising film and product quality reduce pollutant load in the condensed water, reduce the cleaning frequency of membrane module and the consumption of cleaning medicine; Both improved the work-ing life of film, and reduced again supplies consumption and decrease mud discharging, effectively the secondary pollution of reduce mud discharging generation reduces running cost, finally realizes the desirable decontamination effect improving of sewage.This shows that this is a kind of filtering separation function that has, glassware for drinking water is had the electrolyzer of good decontamination effect improving.
The utility model can be widely used in water treatment field.
Description of drawings
Fig. 1 is that the external structure of the utility model embodiment forms synoptic diagram.
Fig. 2 is that the inside of the utility model embodiment forms structural representation.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the B-B sectional view of Fig. 3.
In Fig. 1～4, respectively be labeled as: housing 1, electrode group 2, water-in 3, inlet mouth 4, overflow port 5, support 6, negative electrode 7, anode 8, filtration header 9, filtration backwash pipe 10, anode terminal 11, cathode terminal 12, water outlet 13, sewage draining exit 14.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Referring to Fig. 1～4, the utility model embodiment is provided with housing 1 and electrode group 2, is provided with water-in 3 and inlet mouth 4 in housing 1 bottom, and water-in 3 is connected with suction culvert by pipeline; Inlet mouth 4 is connected with aerating apparatus by pipeline; Housing 1 top, bottom are respectively equipped with overflow port 5, sewage draining exit 14, and overflow port 5 is connected with sewage draining exit and all is connected with outside blow-off line by pipeline;
Described electrode group 2 is provided with support 6, negative electrode 7, anode 8 and water outlet 13; Described electrode group 2 is fixed on the housing 1 by support 6, and the metallic membrane assembly of described negative electrode 7 for having the filtering separation function, described anode 8 are a kind of in metal anode, alloy anode, carbon anode, the titanium anode etc.; One end of described negative electrode 7 is provided with for the web plate that connects power supply, web plate is provided with anode terminal 11 and cathode terminal 12, the other end of negative electrode 7 is provided with and filters header 9 and filter backwash pipe 10, filter header 9 and be connected with water suction pump, filter backwash pipe 10 and be connected with backwashing pump, chemical feed pipe successively.
Described housing 1 can be provided with internal layer and skin, and internal layer can adopt the engineering plastics internal layer, and skin can adopt steel plate outer; Described housing can be circular shell or square casing etc.
Metallic membrane in the described metallic membrane assembly can be selected from a kind of in microfiltration membrane, ultra-filtration membrane, the nanofiltration membrane etc.Metal in the described metallic membrane can be selected from a kind of in nickel, nickelalloy, stainless steel, the titanium etc.
Described titanium anode surface can be coated with the nanoscale precious metal oxide coating, and described precious metal oxide coating has good catalytic properties; It is the coating of metal oxides of 10～35nm that described nanoscale precious metal oxide coating can adopt crystal grain.
Described anode can be tabular anode, circular-arc anode, right cylinder anode or meshed anode etc.
Distance between described electrode group two neighboring pole plate can be 1～50mm.
Operating voltage between described anode and negative electrode can be 1～18V, and current density can be 1～300mA/cm
2
Housing 1 can be circular shell or square casing, can be provided with internal layer and skin, and internal layer can adopt the engineering plastics internal layer, and skin can adopt steel plate outer.
Below provide using method of the present utility model.
1) to printing and dyeing advanced treatment of waste water treatment effect:
To pump into the electrolyzer electrolysis with membrane filtration function by water pump through the second pond printing and dyeing advanced treatment of waste water of biochemical treatment, the voltage of two interpolars is 1～18V, and current density is 1～300mA/cm
2, keeping the residence time of waste water in electrolyzer is 1～5min, the power consumption of the electrolysis of waste water is controlled to be 0.01～0.2 degree/m
3Effect before and after processing sees Table 1～4.
The water quality situation of the dyeing waste water of table 1 after biochemical treatment
| Sequence number | Project | Measured value | Sequence number | Project | Measured value |
| 1 | pH | 7.1 | 5 | Ammonia nitrogen (mg/L) | 12 |
| 2 | SS（mg/L） | 80 | 6 | BOD 5（mg/L） | 15 |
| 3 | Turbidity (NTU) | 45 | 7 | S 2-（mg/L） | 2.5 |
| 4 | COD Cr（mg/L） | 650 | 8 | Colourity (doubly) | 100 |
Product water water quality situation after table 2 is processed through the electrolyzer with membrane filtration function
| Sequence number | Project | Measured value | Sequence number | Project | Measured value |
| 1 | pH | 7.1 | 5 | Ammonia nitrogen (mg/L) | 2 |
| 2 | SS（mg/L）≤ | 2 | 6 | BOD 5（mg/L） | 45 |
| 3 | Turbidity (NTU)≤ | 3 | 7 | S 2-（mg/L）≤ | 0.5 |
| 4 | COD Cr（mg/L） | 142 | 8 | Colourity (doubly) | 10 |
Condensed water water quality situation after table 3 is processed through the electrolyzer with membrane filtration function
| Sequence number | Project | Measured value | Sequence number | Project | Measured value |
| 1 | pH | 7.1 | 5 | Ammonia nitrogen (mg/L) | 4 |
| 2 | SS（mg/L） | 92 | 6 | BOD 5（mg/L） | 60 |
| 3 | Turbidity (NTU) | 55 | 7 | S 2-（mg/L）≤ | 1.0 |
| 4 | COD Cr（mg/L） | 800 | 8 | Colourity (doubly) | 20 |
[0051] Table 4 has the operating parameter of the electrolyzer of membrane filtration function
2) to the treatment effect of process hides advanced treatment of waste water:
To pump into the electrolyzer electrolysis with membrane filtration function by water pump through the second pond process hides advanced treatment of waste water of biochemical treatment, the voltage of two interpolars is 1～18V, and current density is 1～300mA/cm
2, keeping the residence time of waste water in electrolyzer is 1～5min, the power consumption of the electrolysis of waste water is controlled to be 0.01～0.2 degree/m
3Effect before and after processing sees Table 5～8.
The water quality situation of the leather-making waste water of table 5 after biochemical treatment
| Sequence number | Project | Measured value | Sequence number | Project | Measured value |
| 1 | pH | 7.2 | 5 | Ammonia nitrogen (mg/L) | 3.2 |
| 2 | SS（mg/L） | 25 | 6 | BOD 5（mg/L） | 18 |
| 3 | Turbidity (NTU) | 16 | 7 | Colourity (doubly) | 120 |
| 4 | COD Cr（mg/L） | 165 |
Product water water quality situation after table 6 is processed through the electrolyzer with membrane filtration function
| Sequence number | Project | Measured value | Sequence number | Project | Measured value |
| 1 | pH | 7.2 | 5 | Ammonia nitrogen (mg/L) | 1.0 |
| 2 | SS （mg/L）≤ | 2 | 6 | BOD 5（mg/L） | 64 |
| 3 | Turbidity (NTU)≤ | 2 | 7 | Colourity (doubly) | 8 |
| 4 | COD Cr（mg/L） | 42 |
Condensed water water quality situation after table 7 is processed through the electrolyzer with membrane filtration function
| Sequence number | Project | Measured value | Sequence number | Project | Measured value |
| 1 | pH | 7.0 | 5 | Ammonia nitrogen (mg/L) | 5.5 |
| 2 | SS（mg/L） | 28 | 6 | BOD 5（mg/L） | 80 |
| 3 | Turbidity (NTU) | 4 | 7 | Colourity (doubly) | 15 |
| 4 | COD Cr（mg/L） | 212 | 8 |
[0061] Table 8 has the operating parameter of the electrolyzer of membrane filtration function
Claims (6)
1. the electrolyzer with membrane filtration function is characterized in that being provided with housing and electrode group, is provided with water-in and inlet mouth at housing bottom, and water-in is connected with suction culvert by pipeline; Inlet mouth is connected with aerating apparatus by pipeline; Housing top, bottom are respectively equipped with overflow port, sewage draining exit, and overflow port is connected pipeline and all is connected with outside blow-off line with sewage draining exit;
Described electrode group is provided with support, negative electrode, anode and water outlet; Described electrode group is fixed on the housing by support, and described negative electrode is the metallic membrane assembly with filtering separation function, and described anode is a kind of in metal anode, alloy anode, the carbon anode; One end of described negative electrode is provided with for the web plate that connects power supply, web plate is provided with anode terminal and cathode terminal, the other end of negative electrode is provided with and filters header and filter the backwash pipe, filters header and is connected with water suction pump, filters the backwash pipe and is connected with backwashing pump, chemical feed pipe successively.
2. a kind of electrolyzer with membrane filtration function as claimed in claim 1 is characterized in that described housing is circular shell or square casing.
3. a kind of electrolyzer with membrane filtration function as claimed in claim 1 or 2 is characterized in that described housing is provided with internal layer and skin.
4. a kind of electrolyzer with membrane filtration function as claimed in claim 1 is characterized in that described titanium anode surface is coated with the nanoscale precious metal oxide coating.
5. a kind of electrolyzer with membrane filtration function as claimed in claim 1 is characterized in that described anode is tabular anode, circular-arc anode, right cylinder anode or meshed anode.
6. a kind of electrolyzer with membrane filtration function as claimed in claim 1 is characterized in that the distance between described electrode group two neighboring pole plate is 1～50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220168654 CN202688048U (en) | 2012-04-19 | 2012-04-19 | Electrolyzing device with membrane filtration function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220168654 CN202688048U (en) | 2012-04-19 | 2012-04-19 | Electrolyzing device with membrane filtration function |
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| CN202688048U true CN202688048U (en) | 2013-01-23 |
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| CN 201220168654 Expired - Fee Related CN202688048U (en) | 2012-04-19 | 2012-04-19 | Electrolyzing device with membrane filtration function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633324A (en) * | 2012-04-19 | 2012-08-15 | 波鹰(厦门)科技有限公司 | Electrolysis unit with membrane filtration function |
| CN109982977A (en) * | 2016-11-16 | 2019-07-05 | 庆北大学校产学协力团 | Film mating type height electroxidation method, the water treatment facilities for this method and the water treatment system using this method |
| CN112811526A (en) * | 2020-12-31 | 2021-05-18 | 周廷云 | Acidic oxidation potential water continuous generator and generation method thereof |
-
2012
- 2012-04-19 CN CN 201220168654 patent/CN202688048U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633324A (en) * | 2012-04-19 | 2012-08-15 | 波鹰(厦门)科技有限公司 | Electrolysis unit with membrane filtration function |
| CN102633324B (en) * | 2012-04-19 | 2013-10-16 | 波鹰(厦门)科技有限公司 | Electrolysis unit with membrane filtration function |
| CN109982977A (en) * | 2016-11-16 | 2019-07-05 | 庆北大学校产学协力团 | Film mating type height electroxidation method, the water treatment facilities for this method and the water treatment system using this method |
| CN112811526A (en) * | 2020-12-31 | 2021-05-18 | 周廷云 | Acidic oxidation potential water continuous generator and generation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20160419 |
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| CF01 | Termination of patent right due to non-payment of annual fee |