CN105692801A - Application of composite particles in preparing three-dimensional electrode reactor, three-dimensional electrode reactor and water treatment method - Google Patents
Application of composite particles in preparing three-dimensional electrode reactor, three-dimensional electrode reactor and water treatment method Download PDFInfo
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- CN105692801A CN105692801A CN201610191083.6A CN201610191083A CN105692801A CN 105692801 A CN105692801 A CN 105692801A CN 201610191083 A CN201610191083 A CN 201610191083A CN 105692801 A CN105692801 A CN 105692801A
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
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Abstract
The invention provides application of composite particles in preparing a three-dimensional electrode reactor, a three-dimensional electrode reactor and a water treatment method. The composite particles comprise insulating particles and conducting particles. The conducting particles in the composite particles are used as particle electrodes of the three-dimensional electrode reactor, and can form a plurality of micro cells in the sewage to promote the electrochemical reaction of organic pollutants and especially incretion interferents in the sewage, thereby enhancing the current efficiency and reaction efficiency. Besides, the insulating particles in the composite particles can lower the short-circuit current and enhance the treatment efficiency.
Description
Technical field
The present invention relates to water treatment field, in particular it relates to composite particles purposes in preparing 3 D electrode reactor, 3 D electrode reactor and method for treating water。
Background technology
Shortage of water resources has become a big problem of the China of restriction at present economy and society development。Therefore, sewage disposal becomes the important solution route alleviating shortage of water resources。Owing to sewage existing multiple noxious substance, thereby ensure that the water quality safety of recycled water is for promoting that the use of recycled water is significant。In recent years, along with the raising of the development of analytical technology and analysis level, in water quality detection, increasing novel micro organic pollution can be detected。In these novel micro organic pollutions, the recall rate of incretion interferent is higher。Although the usual concentration of incretion interferent of detection is relatively low, but this class substance classes is various, with extremely low concentration, animal and the reproduction of the mankind, immunity and nervous system can be damaged, and traditional dirty water living creature processing technique is poor to the removal effect of the type pollutant。Main methods currently for incretion interferent has bioanalysis, absorption method, chemical oxidization method, electrochemical oxidation process and membrane technology。
But, being currently used for processing in water the technology of incretion interferent still haves much room for improvement。
Summary of the invention
The application is based on inventor to the discovery of following facts and problem and what understanding was made:
In the at present conventional method going out incretion interferent, absorption method influence factor is more to be difficult to control to, and adsorbent reactivation is difficult and relatively costly；The high-pressure membrane operation energy consumption adopted in membrane technology is higher, and the high energy degree pollutant after physical separation still need to further process；Although chemical oxidization method has higher incretion interferent clearance, but conventional oxidant, ozone oxidability causes that by force operating cost is high, it is difficult to promote；By contrast, electrochemical oxidation process has the advantages such as simple, easy to operate, the non-secondary pollution of device, is consequently adapted to process the micro quantity organic pollutant in sewage。
It is contemplated that one of technical problem solved at least to a certain extent in correlation technique。
In a first aspect of the present invention, the present invention proposes a kind of composite particles purposes in preparing 3 D electrode reactor。Described composite particles includes: insulated particle and conductive particle。Utilize the conductive particle in this composite particles as the granule electrode of 3 D electrode reactor, it is possible to form multiple micro cell in sewage, promote the electrochemical reaction of dirty organic pollutants, particularly incretion interferent, improve current efficiency and reaction efficiency。Further, the insulated particle in this composite particles can reduce short circuit current, improves treatment effeciency。
According to embodiments of the invention, the volume ratio of described insulated particle and conductive particle is 1:1。Contact with each other, between conductive particle, the short circuit current caused thus, it is possible to effectively reduce, improve current efficiency and reaction efficiency。
According to embodiments of the invention, the particle diameter of described insulated particle is 2～3mm；The particle diameter of described conductive particle is 2～3mm。Less particle diameter is conducive to increasing contacting of granule electrode and incretion interferent, such that it is able to raising treatment effeciency, and when the particle diameter of insulated particle and conductive particle is similar, it is possible to effectively prevent this composite particles to be layered in 3 D electrode reactor。
According to embodiments of the invention, described conductive particle is to be formed by least one of graphite, activated alumina, Kaolin, activated carbon and pottery。The conductive particle of above-mentioned material composition has good electric conductivity, can improve current efficiency for granule electrode。
According to embodiments of the invention, described insulated particle is to be formed by least one of bead, quartz sand and plastics。The insulated particle wide material sources that above-mentioned material is formed, it is easy to obtain, and stable chemical nature, insulating properties are good。
According to embodiments of the invention, described insulated particle includes dielectric film and nucleome, and described dielectric film is positioned on the outer surface of described nucleome, and described nucleome is made up of described conductive particle。Utilizing insulant, the nucleome that conductive particle is enough become carries out dipping film, can form dielectric film at the outer surface of nucleome。Thus, be conducive to saving manufacturing cost, and can obtain and the insulated particle of conductive particle adjoining dimensions, be layered thus desirably preventing insulated particle and conductive particle in actual use and cause short circuit current to increase。
According to embodiments of the invention, described insulated particle is bead, and described conductive particle is graphite granule, and the volume ratio of bead and described graphite granule described in described composite particles is 1:1。Bead and graphite granule are with low cost and have preferably insulation or electric conductivity, and the composite particles that constitutes of the close bead of volume ratio and graphite granule can effectively prevent the appearance of lamination, such that it is able to improve current efficiency and reaction efficiency further。And the adsorption of graphite granule is not strong, it is suitable for processing trace incretion interferent。
According to embodiments of the invention, the particle diameter of described bead is 2～3mm, and described graphite granule is graphite column, and the diameter of described graphite column is 2～3mm, and height is 0.5～1.5cm。The bead similar by particle diameter and graphite granule form this composite particles, such that it is able to effectively prevent the appearance of lamination, such that it is able to improve current efficiency and reaction efficiency further。
In another aspect of this invention, the present invention proposes a kind of 3 D electrode reactor processed for water。According to embodiments of the invention, this reactor includes: reaction chamber, and described reaction chamber has inlet and liquid outlet；Anode, described anode inserts in described reaction chamber；Negative electrode, described negative electrode inserts in described reaction chamber and electrically connects with described anode；And foregoing composite particles, described composite particles is deposited in described reaction chamber。This 3 D electrode reactor may be used for the organic pollution in the sewage such as Treating Municipal Sewage, particularly incretion interferent。Utilize the conductive particle in foregoing composite particles as the granule electrode of 3 D electrode reactor, multiple micro cell can be formed in sewage, promote the electrochemical reaction of dirty organic pollutants, particularly incretion interferent, improve current efficiency and reaction efficiency。Further, the insulated particle in this composite particles can reduce short circuit current, improves treatment effeciency。
According to embodiments of the invention, this 3 D electrode reactor farther includes: power supply, and described power supply is connected with described anode and described cathodic electricity respectively；Tank, described tank is connected with described inlet and liquid outlet respectively；And peristaltic pump, described peristaltic pump is connected with described tank and described inlet respectively；Optionally, the volume of described reaction chamber is 200-350mL, and described anode and the distance between described negative electrode are 2-8cm, and described composite particles piling height in described reaction chamber is 5-10cm。Thus, it is possible to realize circular treatment, such that it is able to improve treatment effeciency and the effect of this three potential electrodes reactor。
In still another aspect of the invention, the present invention proposes and a kind of processes the method for incretion interferent in sewage。According to embodiments of the invention, the method includes: utilize foregoing 3 D electrode reactor that the incretion interferent in described sewage is carried out electrolysis。Owing to the method utilizes foregoing 3 D electrode reactor to realize the electrolysis of Endocrine chaff interference, therefore the method has whole features and the advantage of previously described 3 D electrode reactor, does not repeat them here。
Accompanying drawing explanation
Fig. 1 shows the structural representation of composite particles according to an embodiment of the invention；
Fig. 2 shows the structural representation of 3 D electrode reactor according to an embodiment of the invention；
Fig. 3 shows the structural representation of 3 D electrode reactor in accordance with another embodiment of the present invention；
Fig. 4 shows process estriol clearance and the concentration map of according to embodiments of the present invention 2；
Fig. 5 shows according to embodiments of the present invention 3 and the estriol clearance of comparative example 1 and concentration map；
Fig. 6 shows according to embodiments of the present invention 3 and the clearance curve kinetics analysis of comparative example 1。
Description of reference numerals:
10: composite particles；20: insulated particle；30: conductive particle
100: reaction chamber；110: inlet；120: liquid outlet
200: anode；300: negative electrode；400: granule electrode
500: power supply；600: tank；700: peristaltic pump；800: agitating unit
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings。The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention。
Bipolar three-dimensional electrode reactor (Bipolarthree-dimensionalelectrodereactor, BTDER), also known as 3 D electrode reactor in the present invention, it it is a kind of novel electrochemical reactor, it is at traditional two-dimentional electrolyzer electric interpolar particle loaded electrode and makes its surface charged, become a new pole (the 3rd pole), multipole particle is formed under electric field action, each granule is equivalent to a micro cell, whole electrolyzer is equivalent to the series connection of numerous micro cell, the electrochemical reaction of material surface can be promoted, it is greatly enhanced current efficiency and reaction efficiency, it is applicable to process reactant concentration low, the process object that electrical conductivity is low。Except selecting the conditions such as better suited cathode and anode electrode material and suitable polar plate spacing, the selection of granule electrode is the key point that can this reactor play higher performance。In view of this, in a first aspect of the present invention, the present invention proposes a kind of composite particles purposes in preparing 3 D electrode reactor。Specifically, with reference to Fig. 1, this composite particles 10 includes: insulated particle 20 and conductive particle 30。Utilize the conductive compositions in this composite particles 10 as the granule electrode of 3 D electrode reactor, multiple micro cell can be formed in sewage, promote the electrochemical reaction of dirty organic pollutants, particularly incretion interferent, improve current efficiency and reaction efficiency。Further, the insulated particle 20 in this composite particles 10 can reduce short circuit current, improves treatment effeciency。
According to embodiments of the invention, the volume ratio of insulated particle 20 and conductive particle 30 is 1:1。Contact with each other, between conductive particle 30, the short circuit current caused thus, it is possible to effectively reduce, improve current efficiency and reaction efficiency。Specifically, the particle diameter of insulated particle 20 can be 2～3mm, and the particle diameter of conductive particle 30 can be 2～3mm。Inventor finds through great many of experiments, less particle diameter is conducive to increasing contacting of granule electrode and incretion interferent, such that it is able to raising treatment effeciency, and when the particle diameter of insulated particle 20 and conductive particle 30 is similar, it is possible to effectively prevent this composite particles 10 to be layered in 3 D electrode reactor。
It should be noted that, the particular make-up of insulated particle 20 and conductive particle 30 is not particularly limited, those skilled in the art according to real medium (such as municipal sewage, industrial wastewater etc.) to be processed needed for this 3 D electrode reactor, can select suitable material to form insulated particle 20 and conductive particle 30。Specifically, according to embodiments of the invention, insulated particle 20 can be formed by selected from least one of bead, quartz sand, plastics and load conductive particle etc.。Above-mentioned material wide material sources, it is easy to obtain, and stable chemical nature, insulating properties are good。Conductive particle 30 can be formed by selected from least one of graphite, activated alumina, Kaolin, activated carbon and ceramic particle etc.。The conductive particle 30 of above-mentioned material composition conducts electricity very well, and can be greatly enhanced current efficiency for granule electrode。The composite particles 10 being made up of above-mentioned substance, there is conduction (conductive particle) and insulation (insulated particle) performance preferably, simultaneously the absorption property of composite particles 10 is not strong, it is to avoid the problem of regeneration difficulty when this composite particles 10 is as granule electrode；And this composite particles 10 medium density, not easily emersion liquid level, thus avoid running off or being mixed into the medium problem after process of granule electrode in actual applications。
Other embodiments according to the present invention, insulated particle 20 can also include dielectric film and nucleome。Dielectric film is formed by insulant, and nucleome is made up of conductive particle, and dielectric film is formed on the outer surface of nucleome。Specifically, it is possible to use conductive particle 30 is carried out dipping film by the organic polymer of insulation, insulation Organic substance is made to cover whole outer surfaces of conductive particle 30, so that conductive particle 30 insulate。For example, it is possible to utilize polyimides that activated carbon carries out dipping film, in order to make activated carbon insulate, and utilize the activated carbon with polyimide coating as insulated particle 20。Utilize the insulated particle 20 that said method obtains can avoid causing between conductive particle 30 and insulated particle 20 skewness or layering in use due to the difference of the physical parameter such as density, size。According to a particular embodiment of the invention, insulated particle 20 can be bead, and conductive particle 30 can be graphite granule, and in composite particles 10, the volume ratio of bead and graphite granule is 1:1。Glass and graphite granule are with low cost and have preferably insulation or electric conductivity, and the composite particles 10 that constitutes of the close bead of volume ratio and graphite granule can effectively prevent the appearance of lamination, such that it is able to further, current efficiency and reaction efficiency are improved。Such as, the particle diameter of bead can be 2～3mm, and graphite granule is graphite column, and the diameter of graphite column can be 2～3mm, and height is 0.5～1.5cm。The bead similar by particle diameter and graphite granule form this composite particles 10, such that it is able to effectively prevent the appearance of lamination, such that it is able to improve current efficiency and reaction efficiency further。
In a second aspect of the present invention, the present invention proposes a kind of 3 D electrode reactor processed for water。According to embodiments of the invention, with reference to Fig. 2, this reactor includes: reaction chamber 100；Anode 200；The granule electrode 400 that negative electrode 300 and previously described composite particles are constituted。Reaction chamber 100 has inlet 110 and a liquid outlet 120, anode 200 and in negative electrode 300 insertion reaction chamber 100, and anode 200 electrically connects with negative electrode 300, and composite particles is deposited in reaction chamber 100。This 3 D electrode reactor may be used for the organic pollution in the sewage such as Treating Municipal Sewage, for instance is used for processing incretion interferent。Utilize the conductive compositions in foregoing composite particles as the granule electrode 400 of 3 D electrode reactor, such as, according to a particular embodiment of the invention, the graphite granule adopting volume ratio to be 1:1 and the composite particles of bead, this composite particles is deposited in reaction chamber 100, utilize graphite granule as granule electrode, bead is as megohmite insulant, multiple micro cell can be formed in sewage, promote dirty organic pollutants, the particularly electrochemical reaction of incretion interferent, improves current efficiency and reaction efficiency。Further, the insulated particle in this composite particles can reduce short circuit current, improves treatment effeciency。
According to embodiments of the invention, with reference to Fig. 3, this 3 D electrode reactor farther includes: power supply 500, tank 600 and peristaltic pump 700。Wherein, power supply 500 electrically connects with anode 200 and negative electrode 300 respectively, in order to provide electric energy for this three microelectrodes reactor, such as, the D.C. regulated power supply that voltage can be selected to be 0～30V, adopts constant current mode to carry out sewage disposal, and electric current can be 0.00～5.00A。Other embodiments according to the present invention, it is also possible to adjustment electric current is 0.2～3.2mA/cm2。Tank 600 is connected with inlet 110 and liquid outlet 120 respectively, thus, it is possible to realize the circular treatment to sewage。Peristaltic pump 700 is connected with tank 600 and inlet 110 respectively, for providing power for sewage supply to inlet 110。Additionally, in order to further enhance wastewater treatment efficiency, it is also possible in tank 600, add agitating unit 800, in order to mixed better by the sewage stored in tank 600。For example, it is possible to add magneton in tank 600, it is arranged below magnetic stirring apparatus at tank 600, thereby may be ensured that the organic pollution in tank 600 sewage is dispersed。
According to a particular embodiment of the invention, dimensional stable anode (the Dimensionstableanode in cheap and easy to get, good stability and oxidisability chamber can be selected, DSA) class electrode is to as anode 200 and negative electrode 300, such that it is able to improve current of electric efficiency, reduce the impact on electrochemical reaction of the solution mass transfer。For example, it is possible to select titanio stable coatings material, (coating can be IrO2And RuO2At least one) as anode 200, Titanium board is as negative electrode 300。
According to embodiments of the invention, the volume of reaction chamber 100 can be 200-350ml, anode 200 and the distance between negative electrode 300 can be 2-8cm, and composite particles piling height in reaction chamber 100 is 5-10cm。Thus, can ensure that reaction chamber 100 has suitable volume, and between anode 200 and negative electrode 300, there is suitable spacing, it is prevented that owing to occurring excessive or anode 200, negative electrode 300 the spacing in space of electrochemical reaction to arrange unreasonable and that cause operation inconvenience (polar plate spacing is too small), mass transfer are limited, granule electrode repolarization, electrochemical reaction speed can not reduce negative effects such as (polar plate spacing are excessive)。
In sum, 3 D electrode reactor according to embodiments of the present invention has following characteristics and advantage:
1) adopt cheap and easy to get and oxidability is strong, the good DSA class electrode of stability to as negative electrode and anode, current efficiency is high, be not susceptible to the impact of solution mass transfer；Employing composite particles is granule electrode, introduces column graphite granule and electrically non-conductive material bead, thus reducing short circuit current, improves current efficiency。
2) graphite granule good conductivity, but adsorptivity is not strong, it it is the ideal particle electrode material removed for trace incretion interferent, bead is similar to the particle diameter of graphite granule, the difference of insulated particle and the physical property of conductive particle is preferably minimized, the degeee of stratification of granule electrode is preferably minimized。
3) reactor of the present invention both may be used for the pre-treatment of difficult degradation trace incretion interferent waste water, so as to be decomposed into the Organic substance of the easy microbial degradation of molecular weight, thus being greatly improved the biodegradability of waste water, can be used for the post processing of biochemical process, guarantee incretion interferent safety dumping, it is ensured that recycled water water quality safety。
In still another aspect of the invention, the present invention proposes and a kind of processes the method for incretion interferent in sewage。According to embodiments of the invention, the method includes: utilize foregoing 3 D electrode reactor that the incretion interferent in sewage is carried out electrolysis。Owing to the method utilizes foregoing 3 D electrode reactor to realize the electrolysis of Endocrine chaff interference, therefore the method has whole features and the advantage of previously described 3 D electrode reactor, does not repeat them here。Generally speaking, the method has following characteristics and advantage:
1) adopt cheap and easy to get and oxidability is strong, the good DSA class electrode of stability to as negative electrode and anode, current efficiency is high, be not susceptible to the impact of solution mass transfer；Employing composite particles is granule electrode, thus reducing short circuit current, improves current efficiency。
2) graphite granule good conductivity, but adsorptivity is not strong, it it is the ideal particle electrode material removed for trace incretion interferent, bead is similar to the particle diameter of graphite granule, the difference of insulated particle and the physical property of conductive particle is preferably minimized, the degeee of stratification of granule electrode is preferably minimized。
3) the method both may be used for the pre-treatment of difficult degradation trace incretion interferent waste water, so as to be decomposed into the Organic substance of the easy microbial degradation of molecular weight, thus being greatly improved the biodegradability of waste water, can be used for the post processing of biochemical process, guarantee incretion interferent safety dumping, it is ensured that recycled water water quality safety。
Below by specific embodiment, the present invention will be described, it should be noted that, following specific embodiment is only used for descriptive purpose, and the scope not limited the present invention in any way, additionally, if no special instructions, then the method specifically not recording condition or step is conventional method, and the reagent and the material that adopt all commercially obtain。
Embodiment 1: assemble 3 D electrode reactor
The reaction chamber effective area of reactor is 300ml, inserts main electrode to (main anode plate Ti/IrO2/RuO2Plate Ti plate pure with main cathode plate) and be connected with DC source, controlling plate spacing is 2-5cm, clean (deionized water or acid solution, alkali liquor can be adopted) and remove graphite and the impurity on bead surface, loading the isopyknic graphite granule and bead that mix as granule electrode, the height of granule electrode is 8cm。Being connected with peristaltic pump by water inlet, outlet passes into tank。
Adopt this 3 D electrode reactor can process experimental simulation waste water, industrial wastewater or sanitary sewage, it is possible to add a certain amount of anhydrous sodium sulfate according to the water quality of water inlet and improve electric conductivity。Can first open peristaltic pump 700 before starting electrolytic treatments, utilize sewage that granule electrode carries out preadsorption, then open D.C. regulated power supply, regulate voltage and current to required value, keep constant current mode, start electrolysis。
Embodiment 2: process estriol
Adopting the 3 D electrode reactor that embodiment 1 assembles, with Titanium board for negative electrode, titanium iridium ruthenium electrode is anode, electrode spacing 5cm, will be about 700 μ g/L, Na containing estriol (estriol, E3) concentration2SO4The waste water that concentration is 0.1M is entered in reaction chamber by peristaltic pump by water inlet, regulates flow of inlet water so that hydraulic detention time is 1.5min, and applying electric current density is 2.2mA/cm2, water outlet processes through tank backflow Posterior circle, samples every 0.5h, determines the concentration of E3 in pond。As shown in Figure 4, after 4 hours, water outlet E3 concentration is only 53.7 μ g/L to treatment effect, and clearance is 92%。
Embodiment 3: process estriol
Adopting the 3 D electrode reactor that embodiment 1 assembles, with Titanium board for negative electrode, titanium iridium ruthenium electrode is anode, electrode spacing 2cm, will be about 980 μ g/L, Na containing estriol (estriol, E3) concentration2SO4The waste water that concentration is 0.1M is entered in reaction chamber by peristaltic pump by water inlet, regulates flow of inlet water so that hydraulic detention time is 1.5min, and applying electric current density is 2.2mA/cm2, water outlet processes through tank backflow Posterior circle, samples every 0.5h, determines the concentration of E3 in pond。E3 clearance such as Fig. 5, after 4 hours, E3 is removed by 100%。
Comparative example 1: conventional two-dimensional Electrode treatment estriol
The 3 D electrode reactor adopting embodiment 1 to assemble, is not filled with granule electrode, and with Titanium board for negative electrode, titanium iridium ruthenium electrode is anode, electrode spacing 2cm, as traditional two-dimensional electrode reactor。980 μ g/L, Na will be about containing estriol (estriol, E3) concentration2SO4The waste water that concentration is 0.1M is entered in reaction chamber by peristaltic pump by water inlet, regulates flow of inlet water so that hydraulic detention time is 1.5min, and applying electric current density is 2.2mA/cm2, water outlet processes through tank backflow Posterior circle, samples every 0.5h, determines the concentration of E3 in pond。
With reference to Fig. 5, under equal conditions, the 4h clearance of E3 is only 34.3% by conventional two-dimensional electrode reactor。The clearance curve of comparative example 1 and embodiment 3 is carried out dynamic analysis, with reference to Fig. 6, wherein, C0The concentration of E3 during for electrolysis time t=0, C is the concentration of E3 during electrolysis time t=t。Result shows that the electrolysis of E3 meets pseudo-first order kinetics reaction, the kinetic constant of the two respectively 0.0286min-1And 0.0018min-1, the pseudo-First order kinetic constant of 3 D electrode reactor is 15.9 times of two-dimensional electrode reactor, drastically increases reaction efficiency。
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention。In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example。And, the specific features of description, structure, material or feature can combine in one or more embodiments in office or example in an appropriate manner。Additionally, when not conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out combining and combining by those skilled in the art。
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, it is impossible to be interpreted as limitation of the present invention, and above-described embodiment can be changed, revises, replace and modification by those of ordinary skill in the art within the scope of the invention。
Claims (10)
1. a composite particles purposes in preparing 3 D electrode reactor, described composite particles includes: insulated particle and conductive particle。
2. purposes according to claim 1, it is characterised in that the volume ratio of described insulated particle and conductive particle is 1:1。
3. purposes according to claim 1, it is characterised in that the particle diameter of described insulated particle is 2～3mm；The particle diameter of described conductive particle is 2～3mm。
4. purposes according to claim 1, it is characterised in that described conductive particle is to be formed by least one of graphite, activated alumina, Kaolin, activated carbon and pottery；
Optionally, described insulated particle is to be formed by least one of bead, quartz sand and plastics。
5. purposes according to claim 4, it is characterised in that described insulated particle includes dielectric film and nucleome, described dielectric film is positioned on the outer surface of described nucleome, and described nucleome is made up of described conductive particle。
6. according to the purposes described in claim 1, it is characterised in that described insulated particle is bead, described conductive particle is graphite granule, and the volume ratio of bead and described graphite granule described in described composite particles is 1:1。
7. purposes according to claim 6, it is characterised in that the particle diameter of described bead is 2～3mm；Described graphite granule is graphite column, and the diameter of described graphite column is 2～3mm, and height is 0.5～1.5cm。
8. the 3 D electrode reactor processed for water, it is characterised in that including:
Reaction chamber, described reaction chamber has inlet and liquid outlet；
Anode, described anode inserts in described reaction chamber；
Negative electrode, described negative electrode inserts in described reaction chamber and electrically connects with described anode；And
Composite particles described in any one of claim 1-7, described composite particles is deposited in described reaction chamber。
9. 3 D electrode reactor according to claim 8, it is characterised in that farther include:
Power supply, described power supply is connected with described anode and described cathodic electricity respectively；
Tank, described tank is connected with described inlet and liquid outlet respectively；And
Peristaltic pump, described peristaltic pump is connected with described tank and described inlet respectively；
Optionally, the volume of described reaction chamber is 200-350mL, and described anode and the distance between described negative electrode are 2-8cm, and described composite particles piling height in described reaction chamber is 5-10cm。
10. one kind processes the method for incretion interferent in sewage, it is characterised in that including: utilize the 3 D electrode reactor described in claim 8 or 9 that the incretion interferent in described sewage is carried out electrolysis。
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| CN110436575A (en) * | 2019-07-25 | 2019-11-12 | 天津大学 | Remove the electric filter formula apparatus and system of pollutant |
| CN111995205A (en) * | 2020-08-11 | 2020-11-27 | 河海大学 | Method for treating excess sludge by using multi-flow coupling bipolar electrode microbial electrolytic cell |
| CN113060803A (en) * | 2021-03-31 | 2021-07-02 | 郑州大学 | System and method for treating trace estrogen in reclaimed water through electrocatalysis |
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| CN102020342A (en) * | 2011-01-14 | 2011-04-20 | 南京大学 | Compound three-dimensional electrode reactor and application thereof in treatment of nitrogenous organic wastewater |
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| CN110436575A (en) * | 2019-07-25 | 2019-11-12 | 天津大学 | Remove the electric filter formula apparatus and system of pollutant |
| CN111995205A (en) * | 2020-08-11 | 2020-11-27 | 河海大学 | Method for treating excess sludge by using multi-flow coupling bipolar electrode microbial electrolytic cell |
| CN111995205B (en) * | 2020-08-11 | 2022-08-23 | 河海大学 | Method for treating excess sludge by using multi-flow coupling bipolar electrode microbial electrolytic cell |
| CN113060803A (en) * | 2021-03-31 | 2021-07-02 | 郑州大学 | System and method for treating trace estrogen in reclaimed water through electrocatalysis |
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