CN107176728A - A kind of electrochemical oxidation process processing sewage device and the method that sewage is handled with it - Google Patents
A kind of electrochemical oxidation process processing sewage device and the method that sewage is handled with it Download PDFInfo
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- CN107176728A CN107176728A CN201710591040.1A CN201710591040A CN107176728A CN 107176728 A CN107176728 A CN 107176728A CN 201710591040 A CN201710591040 A CN 201710591040A CN 107176728 A CN107176728 A CN 107176728A
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- 239000010865 sewage Substances 0.000 title claims abstract description 138
- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000008569 process Effects 0.000 title claims abstract description 28
- 238000006056 electrooxidation reaction Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 239000002245 particle Substances 0.000 claims abstract description 39
- 238000009434 installation Methods 0.000 claims abstract description 33
- 239000002131 composite material Substances 0.000 claims abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 76
- 239000008187 granular material Substances 0.000 claims description 51
- 229910052759 nickel Inorganic materials 0.000 claims description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 37
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 35
- 229910052748 manganese Inorganic materials 0.000 claims description 35
- 239000011572 manganese Substances 0.000 claims description 35
- 238000003756 stirring Methods 0.000 claims description 30
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 29
- 238000011049 filling Methods 0.000 claims description 20
- 229910052742 iron Inorganic materials 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 229910021536 Zeolite Inorganic materials 0.000 claims description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 5
- 239000010457 zeolite Substances 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 230000000052 comparative effect Effects 0.000 description 28
- 239000002351 wastewater Substances 0.000 description 9
- 230000005611 electricity Effects 0.000 description 8
- 238000002156 mixing Methods 0.000 description 7
- 239000005416 organic matter Substances 0.000 description 7
- 238000006722 reduction reaction Methods 0.000 description 7
- 239000004020 conductor Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 230000001590 oxidative effect Effects 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- -1 hydroxyl radical free radical Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003411 electrode reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 239000005446 dissolved organic matter Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- YADSGOSSYOOKMP-UHFFFAOYSA-N lead dioxide Inorganic materials O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/46109—Electrodes
- C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them
-
- 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
-
- 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
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
-
- 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
- C02F1/46109—Electrodes
- C02F2001/46152—Electrodes characterised by the shape or form
-
- 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
- C02F2201/46105—Details relating to the electrolytic devices
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The present invention discloses a kind of electrochemical oxidation process processing sewage device, including electric supply installation, at least two electrolytic cells and clarifier-tank；Wherein：Electrolytic cell includes flow-type electrolytic cell and fixed electrolytic cell, and is arranged alternately；Two side sets particle filled composite electrode in anode plate and cathode plate, electrolytic cell respectively in electrolytic cell；Positive plate in the positive pole and electrolytic cell of electric supply installation is connected by electric wire, and the minus plate in the negative pole and electrolytic cell of electric supply installation is connected by electric wire；Between electrolytic cell, between electrolytic cell and clarifier-tank connected by overflow wall；First flow-type electrolytic cell top is provided with water inlet, and clarifier-tank bottom is provided with delivery port.The invention also discloses using said apparatus method, i.e.,：Adjusting apparatus water flood treatment is pre-processed to collect.Using electrochemical oxidation process of the present invention processing sewage device processing sewage, sewage treating efficiency is substantially increased, while adding sewage load；Sewage can be more thoroughly handled, treatment effect is more preferable.
Description
Technical field
The invention belongs to sewage-treatment plant and method and technology field, a kind of electrochemical oxidation process processing is related particularly to
Sewage device and the method that sewage is handled with it.
Background technology
Since entering industrial society from the mankind, water resource pollution situation is on the rise.Due to production technology, raw material and production
The difference of product, all types of industries waste water has different composition and property.And in the organic pollution materials of industrial trade discharge, mainly
In the majority with benzene class, phenols, such material can cause to poison and inhibitory action to the microorganism of biochemical treatment, be difficult by microorganism
Degraded.And electrochemical oxidation technology, the persistent organic pollutants in water are carried out using the catalytic activity of electrode material straight
The anodic oxidation degraded connect, or being carried out by the strong oxidizing property free radical (such as OH) produced in electrolytic process to organic matter
Oxidative degradation.And the addition of three dimensional particles electrode, water treatment efficiency can be improved.
The content of the invention
An object of the present invention is to provide a kind of electrochemical oxidation process processing sewage device that can improve water treatment efficiency.
To achieve the above object, the technical scheme is that：
A kind of electrochemical oxidation process handles sewage device, including electric supply installation, at least two electrolytic cells and clarifier-tank；Its
In：Electrolytic cell includes flow-type electrolytic cell and fixed electrolytic cell, and is arranged alternately；Two side sets anode respectively in electrolytic cell
Particle filled composite electrode in plate and minus plate, electrolytic cell；Positive plate in the positive pole and electrolytic cell of electric supply installation is connected by electric wire,
Minus plate in the negative pole and electrolytic cell of electric supply installation is connected by electric wire；Between electrolytic cell, between electrolytic cell and clarifier-tank
It is to be connected by overflow wall；First flow-type electrolytic cell top is provided with water inlet, and clarifier-tank bottom is provided with delivery port.
Further, flow-type electrolytic cell is internally provided with stirring rod, and stirring rod is according to iron:Nickel:Manganese mass ratio is 2
~4:1~3:1~3 ratio is made.
Further, the granule electrode of filling is cylindric in flow-type electrolytic cell, and length is 1-3mm, a diameter of
2-4mm；The density that granule electrode is filled in water is 400-500mg/l.
Further, granule electrode is abrasive grit sub-electrode, three kinds of granule electrodes of Nickel particle sub-electrode and manganese granule electrode.
Further, the granule electrode of filling is activated carbon electrodes in fixed electrolytic cell, and activated carbon electrodes are tool
There are the activated carbon electrodes of cavernous structure；Wherein：The a diameter of 5-15mm of activated carbon electrodes, activated carbon electrodes aperture is 20-30 μm；It is living
Property the height filled in fixed electrolytic cell of carbon resistance rod be less than the height of overflow wall.
Further, positive plate is Ti/PbO2- La electrodes, minus plate is nickel foam；The spacing of positive plate and minus plate
It is 56-64cm from the area for 75-80mm, anode plate and cathode plate2。
Further, filling substrate material layer in clarifier-tank, host material layer includes zeolite and rubble, and alternately sets
Put.
Further, height of the height of overflow wall less than electrolytic cell and clarifier-tank pool wall.
Compared with prior art, it is an advantage of the invention that：
1st, at least two electrolytic cells are set in the present invention, and are arranged alternately according to flow-type-fixed, more single electrolytic cell
For, the present invention has that processing sewage is clean, thoroughly advantage.Sewage is set to first pass through flow-type electrolytic cell to sewage in the present invention
The processing of the first step is carried out, flow-type electrolytic cell can carry out big batch processing to sewage, relative to the effect of fixed electrolytic cell processing
Fruit to get well, have in addition stirring rod acceleration processing can be quickly reduction sewage dustiness.Again will be by flow-type electrolytic cell
The sewage of reason is flowed into fixed electrolytic cell, the fixed further adsorption treatment on sewage of electrolytic cell energy, can more enter one to sewage
The purification of step.If first with flow-type electrolytic cell processing sewage the reaction time can be caused slow, easily stifled with fixed electrolytic cell, again
Plug, wastewater treatment efficiency is not very notable.
2nd, the present invention handles sewage using electrochemical oxidation process, uses three dimensional particles electrolytic cell.Electrolytic cell inner cathode
Plate, positive plate produce hydroxyl radical free radical (OH) in electrolytic process, the dissolved organic matter in sewage is degraded.Simultaneously
Three dimensional particles electrode has the function of absorption and microelectrode concurrently, can adsorb the organic matter in the material with strong oxidizing property, sewage
The a large amount of micro cells for occurring to constitute between oxidation or reduction reaction, and granule electrode on the surface of granule electrode can produce tool
There is the hydroxyl radical free radical (OH) of strong oxidizing property, decompose organic matter, improve water treatment efficiency.Due to flow-type electricity in the present invention
Stirring rod in Xie Chi is the alloy being made up of iron, nickel, manganese according to certain mass ratio, so in the same of stirring rod stirring
When, oxidation or reduction reaction also occur on the surface of stirring rod, accelerates the degraded of organic matter in solution.And in flow-type electrolytic cell
Three dimensional particles electrode is abrasive grit sub-electrode, Nickel particle sub-electrode and manganese granule electrode, it is to avoid excessive conducting particles is between solution
Short circuit current flow is formed, causes kinetic current to reduce, finally makes the reduction of organic matter treatment effeciency.
3rd, sewage treating efficiency is improved, then the conductance in solution is accomplished by improving, then conductive material needs selection to lead
Electrically preferable material；The problem of being also contemplated that conductive material cost simultaneously.In order to meet above-mentioned condition, then the present invention chooses
Iron, nickel, three kinds of metals of manganese are as the granule electrode in flow-type electrolytic cell, while the conjunction that stirring rod is prepared into these three metals
Gold is made.
4th, granule electrode selects activated carbon electrodes in fixed electrolytic cell in the present invention, can be to passing through flow-type electrolytic cell
The sewage of processing does further adsorption treatment, increases treatment effect.Electrolytic cell is followed by clarifier-tank, can be to the sewage after processing
Filter again so that sewage disposal is cleaner, more thorough.
5th, this invention ensures that the continuity and completeness of sewage disposal, while improving sewage treating efficiency, are carried significantly
High sewage load.
The second object of the present invention is to provide a kind of method for handling sewage, i.e., the electrification provided using one of mesh of the present invention
Learn the method that oxidative treatment sewage device carries out processing sewage.
To achieve the above object, the technical scheme is that：
A kind of method for handling sewage, the electrochemical oxidation process provided using one of mesh of the present invention handles sewage device, bag
Include following steps：
(1) pending sewage enter processing sewage device before, it is necessary to be pre-processed to sewage, i.e., in pending dirt
The impurity added in water in flocculant, precipitation sewage；
(2) sewage device horizontal positioned will be handled, flow-type electrolytic cell and fixed electrolytic cell are arranged alternately；Open power supply
Device and stirring rod, adjust the supply voltage of electric supply installation；
(3) sewage pre-processed by step 1 is entered in flow-type electrolytic cell by water inlet, flowed into by overflow wall
Into fixed electrolytic cell；The sewage of pretreatment is set to be flowed into clarifier-tank by overflow wall after the processing of at least two electrolytic cells
Middle carry out purified treatment；Control the flow rate of water flow of water inlet and delivery port equal；
(4) the treated water flowed out from delivery port is collected.
Further, the supply voltage of electric supply installation is 5-9V, and current density is 2- between positive plate and minus plate plate
8mA/cm2；The conduction time of each electrolytic cell is 90-120min；The flow rate of water flow of water inlet and delivery port is 15-
23ml/s。
Compared with prior art, it is an advantage of the invention that：
The method that the electrochemical oxidation process processing sewage device provided using one of mesh of the present invention carries out processing sewage, significantly
Sewage treating efficiency is improved, while adding sewage load；Sewage can be more thoroughly handled, treatment effect is more preferable.
Brief description of the drawings
, below will be to embodiment or existing for the clearer explanation embodiment of the present invention or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it is clear that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1：A kind of electrochemical oxidation process of the present invention handles the structural representation of sewage device；
Wherein：1- electric supply installations, 3- clarifier-tanks, 5- overflow walls, 21- flow-types electrolytic cell, the fixed electrolytic cells of 22-, 31-
Zeolite, 32- rubbles, 41- positive plates, 42- minus plates, 61- water inlets, 62- delivery ports, 211- stirring rod, 212- flow-types electricity
The granule electrode in the fixed electrolytic cell of granule electrode, 221- in Xie Chi.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, clear, complete retouch is carried out to the technical scheme in the embodiment of the present invention
State, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the present invention
In embodiment, all other reality that those skilled in the art is obtained on the premise of creative work is not made
Example is applied, protection scope of the present invention is belonged to.
Embodiment 1
As shown in figure 1, a kind of electrochemical oxidation process processing sewage device, including electric supply installation 1, two electrolytic cells and purification
Pond 3.Processing sewage device in the present embodiment uses three dimensional particles electrode reaction system, utilizes the original of electrochemical oxidation process
Reason carries out processing sewage.The three dimensional particles electrode reaction system of electrolytic cell is configured to：Two side sets anode respectively in electrolytic cell
Positive plate 41 in particle filled composite electrode in plate 41 and minus plate 42, electrolytic cell, the positive pole and electrolytic cell of electric supply installation 1 passes through electricity
Line is connected, and the minus plate 42 in the negative pole and electrolytic cell of electric supply installation 1 is connected by electric wire.It is preferred that, positive plate 41 is Ti/
PbO2- La electrodes, minus plate 42 is nickel foam.Wherein, Ti/PbO2- La electrodes are using titanium plate as base material, by applying in titanium plate
Cover PbO2The electrode being prepared from La.It is more highly preferred to, distance is 75-80mm, anode between positive plate 41 and minus plate 42
The area of plate 41 and minus plate 42 is 56-64cm2。
Between electrolytic cell, between electrolytic cell and clarifier-tank 3 connected by overflow wall 5, the setting of overflow wall 5 can be big
It is big to reduce the energy that outer bound pair whole device is provided, energy consumption can be saved.It is preferred that, the height of overflow wall 5 less than electrolytic cell and
The height of the pool wall of clarifier-tank 3.Wherein, first flow-type electrolytic cell top is provided with water inlet 61, and the bottom of clarifier-tank 3 is provided with
Delivery port 62.
As shown in figure 1, electrolytic cell includes flow-type electrolytic cell 21 and fixed electrolytic cell 22, and according to flow-type-fixation
Formula is set.
Further, in order to accelerate inside the speed of processing sewage in flow-type electrolytic cell 21, flow-type electrolytic cell 21
It is provided with stirring rod 211.Because improving sewage treating efficiency, then the conductance in solution is accomplished by improving, then conductive material
Need to choose the preferable material of electric conductivity；The problem of being also contemplated that conductive material cost simultaneously.Then iron, nickel, three kinds of metals of manganese are expired
The above-mentioned alternative condition to conductive material of foot.Stirring rod 211 is according to iron:Nickel:Manganese mass ratio is 2~4:1~3:1~3 ratio
The alloy that example is made.It is preferred that, stirring rod 211 is according to iron:Nickel:Manganese mass ratio is 3:1:1 ratio is made, and can make electric conductivity
17% is at least improved compared with the mixing of other ratios, the effect of sewage disposal is preferably also.
Further, the granule electrode 212 of filling is cylindric in flow-type electrolytic cell 21, and length is 1-3mm, directly
Footpath is 2-4mm；The density that granule electrode 212 is filled in water is 400-500mg/l.Such particle can be swum in well
In water, meanwhile, this granule electrode is easily produced, and conductive effect is good.Wherein, granule electrode 212 is abrasive grit sub-electrode, nickel
Three kinds of granule electrodes of granule electrode and manganese granule electrode, i.e., be made columned abrasive grit by iron, nickel, manganese respectively according to above-mentioned size
Abrasive grit sub-electrode, Nickel particle sub-electrode, manganese granule electrode, are then directly filled in by sub-electrode, Nickel particle sub-electrode, manganese granule electrode
The electrolyte of flow-type electrolytic cell 21 --- in water.The granule electrode 212 and stirring rod 211 of filling are all in flow-type electrolytic cell 21
Material of the same race --- iron, nickel, manganese are constituted, it is to avoid excessive conducting particles forms short circuit current flow between solution, cause reaction electricity
Stream is reduced, and finally makes the reduction of organic matter treatment effeciency.
Further, the granule electrode 221 of filling is activated carbon electrodes in fixed electrolytic cell 22, and activated carbon electrodes
For the activated carbon electrodes with cavernous structure.Activated carbon, which does electrode, has suction-operated, can adsorb the organic matter in water, and
Its change to water temperature and quality and water has stronger adaptability.It is preferred that, a diameter of 5-15mm of activated carbon electrodes, activated carbon electricity
Pole aperture is 20-30 μm；The height of activated carbon electrodes filling in fixed electrolytic cell 22 is less than the height of overflow wall 5.
Common in the art is single use flow-type three dimensional particles electrolytic cell or fixed three-dimensional particle electrolytic cell
Sewage is handled, and can so cause processing sewage unclean, not thorough.Sewage first passes through flow-type electrolytic cell 21 in the present embodiment
The processing of the first step is carried out to sewage, flow-type electrolytic cell 21 can carry out big batch processing to sewage, relative to fixed electrolytic cell
22 processing effects to get well, have in addition stirring rod 211 acceleration processing can be quickly reduction sewage dustiness.Again will be through excessively stream
The sewage of the processing of dynamic formula electrolytic cell 21 is flowed into fixed electrolytic cell 22, and fixed electrolytic cell 22 can further adsorption treatment dirt
Water, can further be purified to sewage.If first with fixed electrolytic cell processing sewage the reaction time can be caused slow, easy
Block, wastewater treatment efficiency is not very notable.
Further, filling substrate material layer in clarifier-tank 3, host material layer includes zeolite 31 and rubble 32, and hands over
For setting.After zeolite 31 and rubble 32 of the water handled by electrolytic cell by filling in clarifier-tank 3 are filtered again, from purification
The delivery port 62 in pond 3 flows out.
Embodiment 2
Using the electrochemical oxidation process processing sewage device processing sewage in embodiment 1, specific method comprises the following steps：
(1) pending sewage enter processing sewage device before, it is necessary to be pre-processed to sewage, i.e., in pending dirt
The impurity added in water in flocculant, precipitation sewage；
(2) sewage device horizontal positioned will be handled, flow-type electrolytic cell 21 and fixed electrolytic cell 22 are arranged alternately；Open
Electric supply installation 1 and stirring rod 211, adjust the supply voltage of electric supply installation 1；
(3) sewage pre-processed by step 1 is entered in flow-type electrolytic cell 21 by water inlet 61, by overflow wall
5 are flowed into fixed electrolytic cell 22；The sewage of pretreatment is set to be flowed into after the processing of at least two electrolytic cells by overflow wall 5
Purified treatment is carried out into clarifier-tank 3；Control water inlet 61 equal with the flow rate of water flow of delivery port 62；
(4) the treated water flowed out from delivery port 62 is collected.
Design parameter is as follows：Wastewater Sample mass concentration is 300mg/L.The supply voltage of electric supply installation 1 is 5V, positive plate
Current density is 2mA/cm between 41 and the plate of minus plate 422；The conduction time of each electrolytic cell is 90min；Water inlet 61 and go out
The flow rate of water flow at the mouth of a river 62 is 15ml/s.Distance is 75mm, positive plate 41 and minus plate between positive plate 41 and minus plate 42
42 area is 56cm2.Stirring rod 211 is according to iron:Nickel:Manganese mass ratio is 2:1:1 ratio is made.Flow-type electrolytic cell 21
The granule electrode 212 of interior filling is that length is 1mm, a diameter of 2mm abrasive grit sub-electrode, Nickel particle sub-electrode, manganese granule electrode, and
Abrasive grit sub-electrode:Nickel particle sub-electrode:Manganese granule electrode is 1 according to mass ratio:1:1 ratio mixing is filled in water, is filled in
Density in water is 400mg/l.The a diameter of 5mm of activated carbon electrodes, activated carbon electrodes aperture is 20 μm.
Embodiment 3
Using the electrochemical oxidation process processing sewage device processing sewage in embodiment 1, wherein, the present embodiment sets 4
Electrolytic cell, and be arranged alternately according to flow-type-fixed-flow-type-fixed, specific method be the same as Example 2, herein no longer
Repeat.
Design parameter is as follows：Wastewater Sample mass concentration is 300mg/L.The supply voltage of electric supply installation 1 is 6.5V, anode
Current density is 4mA/cm between plate 41 and the plate of minus plate 422；The conduction time of each electrolytic cell is 106min；The He of water inlet 61
The flow rate of water flow of delivery port 62 is 18ml/s.Distance is 76.5mm, positive plate 41 and the moon between positive plate 41 and minus plate 42
The area of pole plate 42 is 58cm2.Stirring rod 211 is according to iron:Nickel:Manganese mass ratio is 3:1:1 ratio is made.Flow-type is electrolysed
The granule electrode 212 of filling is that length is 1.5mm, a diameter of 2.6mm abrasive grit sub-electrode, Nickel particle sub-electrode, manganese grain in pond 21
Sub-electrode, and abrasive grit sub-electrode:Nickel particle sub-electrode:Manganese granule electrode is 1 according to mass ratio:2:3 ratio mixing is filled in water
In, the density being filled in water is 450mg/l.The a diameter of 7mm of activated carbon electrodes, activated carbon electrodes aperture is 23 μm.
Embodiment 4
Using the electrochemical oxidation process processing sewage device processing sewage in embodiment 1, wherein, the present embodiment sets 4
Electrolytic cell, and be arranged alternately according to flow-type-fixed-flow-type-fixed, specific method be the same as Example 2, herein no longer
Repeat.
Design parameter is as follows：Wastewater Sample mass concentration is 300mg/L.The supply voltage of electric supply installation 1 is 8V, positive plate
Current density is 6mA/cm between 41 and the plate of minus plate 422；The conduction time of each electrolytic cell is 110min；Water inlet 61 and go out
The flow rate of water flow at the mouth of a river 62 is 20ml/s.Distance is 78mm, positive plate 41 and minus plate between positive plate 41 and minus plate 42
42 area is 61cm2.Stirring rod 211 is according to iron:Nickel:Manganese mass ratio is 3:2:2 ratio is made.Flow-type electrolytic cell 21
The granule electrode 212 of interior filling is that length is 2mm, a diameter of 3.2mm abrasive grit sub-electrode, Nickel particle sub-electrode, manganese granule electrode,
And abrasive grit sub-electrode:Nickel particle sub-electrode:Manganese granule electrode is 2 according to mass ratio:1:4 ratio mixing is filled in water, is filled
Density in water is 480mg/l.The a diameter of 12mm of activated carbon electrodes, activated carbon electrodes aperture is 27 μm.
Embodiment 5
Using the electrochemical oxidation process processing sewage device processing sewage in embodiment 1, wherein, the present embodiment sets 6
Electrolytic cell, and be arranged alternately according to flow-type-fixed-flow-type-fixed-flow-type-fixed, specific method is with real
Example 2 is applied, here is omitted.
Design parameter is as follows：Wastewater Sample mass concentration is 300mg/L.The supply voltage of electric supply installation 1 is 9V, positive plate
Current density is 8mA/cm between 41 and the plate of minus plate 422；The conduction time of each electrolytic cell is 120min；Water inlet 61 and go out
The flow rate of water flow at the mouth of a river 62 is 23ml/s.Distance is 80mm, positive plate 41 and minus plate between positive plate 41 and minus plate 42
42 area is 64cm2.Stirring rod 211 is according to iron:Nickel:Manganese mass ratio is 4:3:3 ratio is made.Flow-type electrolytic cell 21
The granule electrode 212 of interior filling is that length is 3mm, a diameter of 4mm abrasive grit sub-electrode, Nickel particle sub-electrode, manganese granule electrode, and
Abrasive grit sub-electrode:Nickel particle sub-electrode:Manganese granule electrode is 3 according to mass ratio:2:4 ratio mixing is filled in water, is filled in
Density in water is 500mg/l.The a diameter of 15mm of activated carbon electrodes, activated carbon electrodes aperture is 30 μm.
Comparative example 1
Electrolytic cell in embodiment 1 is changed to only set a flow-type electrolytic cell by this comparative example, and remaining is constant, handles sewage
Specific method is as follows：
(1) pending sewage enter processing sewage device before, it is necessary to be pre-processed to sewage, i.e., in pending dirt
The impurity added in water in flocculant, precipitation sewage；
(2) sewage device horizontal positioned will be handled, electric supply installation and stirring rod is opened, the power supply electricity of electric supply installation is adjusted
Pressure；
(3) by after sewage that step 1 is pre-processed is entered by water inlet and handled in flow-type electrolytic cell by overflow
Wall 5, which is flowed into clarifier-tank, carries out purified treatment；Control the flow rate of water flow of water inlet and delivery port equal；
(4) the treated water flowed out from delivery port is collected.
Design parameter is as follows：Wastewater Sample mass concentration is 300mg/L.The supply voltage of electric supply installation is 5V, positive plate
Current density is 2mA/cm between minus plate plate2；The conduction time of electrolytic cell is 90min；The current of water inlet and delivery port
Flow velocity is 15ml/s.Distance is 75mm between positive plate and minus plate, and the area of anode plate and cathode plate is 56cm2.Stir
Rod is mixed according to iron:Nickel:Manganese mass ratio is 2:1:1 ratio is made.The granule electrode of filling is that length is in flow-type electrolytic cell
1mm, a diameter of 2mm abrasive grit sub-electrode, Nickel particle sub-electrode, manganese granule electrode, and abrasive grit sub-electrode:Nickel particle sub-electrode:Manganese grain
Sub-electrode is 1 according to mass ratio:1:1 ratio mixing is filled in water, and the density being filled in water is 400mg/l.
Comparative example 2
Electrolytic cell in embodiment 1 is changed to only set a fixed electrolytic cell by this comparative example, and remaining is constant, handles sewage
Specific method is as follows：
(1) pending sewage enter processing sewage device before, it is necessary to be pre-processed to sewage, i.e., in pending dirt
The impurity added in water in flocculant, precipitation sewage；
(2) sewage device horizontal positioned will be handled, electric supply installation is opened and adjusts the supply voltage of electric supply installation；
(3) by after sewage that step 1 is pre-processed is entered by water inlet and handled in fixed electrolytic cell by overflow
Wall, which is flowed into clarifier-tank, carries out purified treatment；Control the flow rate of water flow of water inlet and delivery port equal；
(4) the treated water flowed out from delivery port is collected.
Design parameter is as follows：Wastewater Sample mass concentration is 300mg/L.The supply voltage of electric supply installation is 5V, positive plate
Current density is 2mA/cm between minus plate plate2；The conduction time of electrolytic cell is 90min；The current of water inlet and delivery port
Flow velocity is 15ml/s.Distance is 75mm between positive plate and minus plate, and the area of anode plate and cathode plate is 56cm2.It is living
Property a diameter of 5mm of carbon resistance rod, activated carbon electrodes aperture be 20 μm.
Comparative example 3
2 electrolytic cells that electrolytic cell in embodiment 1 is changed to set according to fixed-flow-type by this comparative example, remaining is not
Become, processing sewage specific method is as follows：
(1) pending sewage enter processing sewage device before, it is necessary to be pre-processed to sewage, i.e., in pending dirt
The impurity added in water in flocculant, precipitation sewage；
(2) sewage device horizontal positioned will be handled, fixed electrolytic cell and flow-type electrolytic cell is arranged alternately；Open power supply
Device and stirring rod, adjust the supply voltage of electric supply installation；
(3) sewage pre-processed by step 1 is entered in fixed electrolytic cell by water inlet, flowed into by overflow wall
Into flow-type electrolytic cell；It is flowed into after processing by overflow wall in clarifier-tank and carries out purified treatment；Control water inlet and water outlet
The flow rate of water flow of mouth is equal；
(4) the treated water flowed out from delivery port is collected.
Design parameter is as follows：Wastewater Sample mass concentration is 300mg/L.The supply voltage of electric supply installation 1 is 5V, positive plate
Current density is 2mA/cm between minus plate plate2；The conduction time of each electrolytic cell is 90min；Water inlet and delivery port
Flow rate of water flow is 15ml/s.Distance is 75mm between positive plate and minus plate, and the area of anode plate and cathode plate is
56cm2.Stirring rod is according to iron：Nickel：Manganese mass ratio is 2:1:1 ratio is made.The granule electrode of filling in flow-type electrolytic cell
It is 1mm, a diameter of 2mm abrasive grit sub-electrode, Nickel particle sub-electrode, manganese granule electrode, and abrasive grit sub-electrode for length:Nickel particles electricity
Pole:Manganese granule electrode is 1 according to mass ratio:1:1 ratio mixing is filled in water, and the density being filled in water is 400mg/l.
The a diameter of 5mm of activated carbon electrodes, activated carbon electrodes aperture is 20 μm.
Comparative example 4
Stirring rod material in flow-type electrolytic cell in embodiment 1 is changed in iron, and flow-type electrolytic cell by this comparative example
Granule electrode is iron electrode, wherein, this comparative example sets 4 electrolytic cells, and according to flow-type-fixed-flow-type-fixation
Formula is arranged alternately, and remaining is constant, specific method be the same as Example 2, and here is omitted.
Design parameter is as follows：Wastewater Sample mass concentration is 300mg/L.The supply voltage of electric supply installation is 6.5V, anode
Current density is 4mA/cm between plate and minus plate plate2；The conduction time of each electrolytic cell is 106min；Water inlet and delivery port
Flow rate of water flow be 18ml/s.Distance is 76.5mm between positive plate and minus plate, and the area of anode plate and cathode plate is
58cm2.Stirring rod is fabricated from iron.The granule electrode of filling is iron in flow-type electrolytic cell, and length is 1.5mm, a diameter of
2.6mm, the density being filled in water is 450mg/l.The a diameter of 7mm of activated carbon electrodes, activated carbon electrodes aperture is 23 μm.
Comparative analysis：
The water after embodiment 2~5 and comparative example 1~4 are handled is collected, is detected, testing result refers to table 1.Its
In, COD refers to COD, and TOC refers to total organic carbon.
Table 1
1st, the difference of embodiment 2 and comparative example 1, comparative example 2 is that the species of electrolytic cell is different, i.e.,：Set in embodiment 2
There are two electrolytic cells, and according to flow-type-fixed setting, a flow-type electrolytic cell, comparative example 2 are only set in comparative example 1
In a fixed electrolytic cell is only set.It was found from the data in table 1, the effect of sewage disposal is substantially better than in embodiment 2
COD clearance, TOC clearance in comparative example 1, comparative example 2, i.e. embodiment 2 are apparently higher than comparative example 1, comparative example 2.
Common in the art is single use flow-type three dimensional particles electrolytic cell or fixed three-dimensional particle electrolytic cell processing sewage,
And can so cause sewage disposal unclean, not thorough.
2nd, embodiment 2 is that the set-up mode of electrolytic cell is different with the difference of comparative example 3, i.e.,：Pre-processed in embodiment 2
Sewage is introduced into flow-type electrolytic cell, enters back into fixed electrolytic cell, and the sewage pre-processed in comparative example 3 be introduced into it is fixed
Electrolytic cell, enters back into flow-type electrolytic cell.It was found from the data in table 1, the effect of sewage disposal is substantially better than in embodiment 2
COD clearance, TOC clearance in comparative example 3, i.e. embodiment 2 are apparently higher than comparative example 3.Stream is first passed through in embodiment 2
Dynamic formula electrolytic cell carries out the processing of the first step to sewage, and flow-type electrolytic cell can carry out mass disposal to sewage, relative to solid
Fixed pattern electrolytic cell processing effect to get well, have in addition stirring rod acceleration processing can be quickly reduction sewage dustiness.Again will
The sewage handled by flow-type electrolytic cell is flowed into fixed electrolytic cell, and fixed electrolytic cell can further adsorption treatment dirt
Water, can further be purified to sewage.Sewage is introduced into fixed electrolytic cell in comparative example 3, enters back into flow-type electrolysis
Pond, can cause the reaction time slowly, easily to block, wastewater treatment efficiency is not very notable.
3rd, the difference of embodiment 3 and comparative example 4 is the material of three dimensional particles electrode and stirring rod in flow-type electrolytic cell
Difference, i.e.,：Three dimensional particles electrode in embodiment 3 is abrasive grit sub-electrode, Nickel particle sub-electrode, manganese granule electrode, and in comparative example 4
Using only single abrasive grit sub-electrode.The effect of sewage disposal is substantially better than it was found from the data in table 1, in embodiment 3 pair
COD clearance, TOC clearance in ratio 4, i.e. embodiment 3 apparently higher than comparative example 4, meanwhile, the electricity in embodiment 3
Efficiency is flowed apparently higher than comparative example 4.A variety of granule electrodes are used in embodiment 3, compared with being imitated in comparative example 4 using single particle electric current
Rate, sewage load have lifting, so as to handle, sewage is more efficient, and sewage load is also significantly lifted.
4th, be respectively provided with 2,4,6 electrolytic cells in embodiment 2, embodiment 4, embodiment 5, and according to flow-type-
It is fixed to be arranged alternately.It was found from the data in table 1, sewage is set to reach multistep treatment by multiple electrolytic cells so that processing is more
Thoroughly.The present embodiment is not further to the quantity of electrolytic cell to be limited, and those skilled in the art voluntarily select according to the actual requirements
Select.
The present embodiment is not filled in water to abrasive grit sub-electrode, Nickel particle sub-electrode, manganese granule electrode in flow-type electrolytic cell
Mass ratio do further restriction, those skilled in the art voluntarily select according to the actual requirements.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of electrochemical oxidation process handles sewage device, it is characterised in that including electric supply installation (1), at least two electrolytic cells
With clarifier-tank (3)；Wherein：The electrolytic cell includes flow-type electrolytic cell (21) and fixed electrolytic cell (22), and is arranged alternately；
Two side sets particle filled composite electrode in positive plate (41) and minus plate (42), the electrolytic cell respectively in the electrolytic cell；Institute
The positive pole of electric supply installation (1) is stated to be connected by electric wire with the positive plate (41) in the electrolytic cell, the electric supply installation (1) it is negative
Pole is connected with the minus plate (42) in the electrolytic cell by electric wire；Between the electrolytic cell, between electrolytic cell and clarifier-tank (3)
It is to be connected by overflow wall (5)；First flow-type electrolytic cell top is provided with water inlet (61), the clarifier-tank (3)
Portion is provided with delivery port (62).
2. electrochemical oxidation process according to claim 1 handles sewage device, it is characterised in that the flow-type electrolytic cell
(21) stirring rod (211) is internally provided with, and the stirring rod (211) is according to iron:Nickel:Manganese mass ratio is 2~4:1~3:1~3
Ratio be made.
3. electrochemical oxidation process according to claim 2 handles sewage device, it is characterised in that the flow-type electrolytic cell
(21) granule electrode (212) of filling is cylindric in, and length is 1-3mm, a diameter of 2-4mm；The granule electrode (212)
The density being filled in water is 400-500mg/L.
4. electrochemical oxidation process according to claim 3 handles sewage device, it is characterised in that the granule electrode
(212) it is abrasive grit sub-electrode, three kinds of granule electrodes of Nickel particle sub-electrode and manganese granule electrode.
5. electrochemical oxidation process according to claim 1 handles sewage device, it is characterised in that the fixed electrolytic cell
(22) granule electrode (221) of filling is activated carbon electrodes in, and the activated carbon electrodes are the activated carbon with cavernous structure
Electrode；Wherein：The a diameter of 5-15mm of activated carbon electrodes, the activated carbon electrodes aperture is 20-30 μm；State activated carbon electrodes
The height of filling is less than the height of the overflow wall (5) in the fixed electrolytic cell (22).
6. the electrochemical oxidation process processing sewage device according to any one of claim 1-5 claim, it is characterised in that
The positive plate (41) is Ti/PbO2- La electrodes, the minus plate (42) is nickel foam；The positive plate (41) and minus plate
(42) distance is 75-80mm between, and the area of the positive plate (41) and minus plate (42) is 56-64cm2。
7. electrochemical oxidation process according to claim 6 handles sewage device, it is characterised in that in the clarifier-tank (3)
Filling substrate material layer, the host material layer includes zeolite (31) and rubble (32), and is arranged alternately.
8. electrochemical oxidation process according to claim 7 handles sewage device, it is characterised in that the overflow wall (5)
Highly less than the height of the electrolytic cell and clarifier-tank (3) pool wall.
9. a kind of method for handling sewage, usage right requires the electrochemical oxidation process processing sewage device described in any one of 1-8,
It is characterised in that it includes following steps：
(1) pending sewage enter it is described processing sewage device before, it is necessary to be pre-processed to sewage, i.e., in pending dirt
The impurity added in water in flocculant, precipitation sewage；
(2) by the processing sewage device horizontal positioned, the flow-type electrolytic cell (21) and fixed electrolytic cell (22) are alternately
Set；The electric supply installation (1) and stirring rod (211) are opened, the supply voltage of the electric supply installation (1) is adjusted；
(3) sewage pre-processed by step (1) is entered in the flow-type electrolytic cell (21) by the water inlet (61),
It is flowed into by the overflow wall (5) in the fixed electrolytic cell (22)；Make the sewage of pretreatment by described at least two
It is flowed into after electrolytic cell processing by the overflow wall (5) in the clarifier-tank (3) and carries out purified treatment；Control the water inlet
(61) and delivery port (62) flow rate of water flow it is equal；
(4) the treated water flowed out from the delivery port (62) is collected.
10. the method for processing sewage according to claim 9, it is characterised in that the supply voltage of the electric supply installation (1)
For 5-9V, current density is 2-8mA/cm between the positive plate (41) and minus plate (42) plate2；The energization of each electrolytic cell
Time is 90-120min；The flow rate of water flow of the water inlet (61) and delivery port (62) is 15-23ml/s.
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Cited By (1)
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| CN115849522A (en) * | 2023-03-01 | 2023-03-28 | 广东工业大学 | Flow anode electrochemical sewage treatment device and process based on screening type current collector |
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