CN107840416A - A kind of rotation electrode tubular electrochemical reactor and its application - Google Patents
A kind of rotation electrode tubular electrochemical reactor and its application Download PDFInfo
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- CN107840416A CN107840416A CN201610836992.0A CN201610836992A CN107840416A CN 107840416 A CN107840416 A CN 107840416A CN 201610836992 A CN201610836992 A CN 201610836992A CN 107840416 A CN107840416 A CN 107840416A
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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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- General Chemical & Material Sciences (AREA)
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- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses a kind of rotation electrode tubular electrochemical reactor, including at least one electrochemical reactor shell, rotary anode, static negative electrode, rotating shaft, motor, conducting slip ring and bearing, vertical tubulose or vertical cylindrical body of the electrochemical reactor shell for inner wall insulation, the electrochemical reactor outer casing underpart is provided with inlet, and top is provided with liquid outlet；The rotating shaft is disposed longitudinally in electrochemical reactor shell；The rotary anode is fixed in rotating shaft, and the static negative electrode is fixed on the inwall of electrochemical reactor shell, and the rotary anode and static negative electrode are arranged alternately；The conducting slip ring is connecting the positive pole of rotary anode and D.C. regulated power supply.The reactor can serial or parallel connection, can be applied to the processing of the organic wastewater of any composition；Rotary anode accelerates the removal rate of organic matter, accelerates electrode surface to produce the removing speed of bubble, avoids the reduction of electrode effective area；Processing speed is fast, and floor space is small, and cost of investment is relatively low.
Description
Technical field
The present invention relates to electrochemical reactor field.More particularly, to a kind of rotation electrode tubular electrochemical reactor
And application of the reactor in treatment of Organic Wastewater.
Background technology
Organic concentration is higher in organic wastewater, and biodegradability is poor, is the representative difficult of water treatment field
Waste water.For electrochemical oxidation process because it is a kind of environment-friendly wastewater processing technology, its action principle is that anode produces oxidisability
Extremely strong hydroxyl radical free radical (OH), OH can be with the oxidation of organic compounds of non-selectivity, and it has without adding chemistry to system
The characteristics of medicament, reaction condition is gentle, and equipment is simple.Tubular electrochemical reactor is that a kind of back-mixing is small, pollutant conversion ratio compared with
High Electrochemical oxidation device.The electrochemical oxidation process of organic matter is mainly by mass transport limitation, in identical electrode material bar
Under part, mass-transfer performance determines the removal rate of organic matter；Existing its electrode of tubular electrochemical reactor is mostly concentric circles tubular,
Mass transfer is mainly realized by the flowing of electrolyte, in order to reach higher mass transfer ability, is generally required very high flow velocity, is caused institute
The electrode area and reactor volume needed is larger, and impact of the electrolyte flow at high speed to pole plate causes electrode life shorter, electrode
The increase of area and reactor volume causes equipment investment to increase, and the gas of electrolytic process side reaction generation is enriched with electrode surface
Cause electrode effective area to reduce, finally have impact on the extensive use of tubular reactor.
The content of the invention
It is an object of the present invention to provide a kind of rotation electrode tubular electrochemical reactor.Mainly for conventional tubular
Problem above present in electrochemical reactor, promote the commercial Application of tubular electrochemical reactor, propose a kind of with higher
Mass transfer ability and the Multi-stage rotary electrode tubular type electrochemical reactor for accelerating gas removal.
It is another object of the present invention to provide a kind of rotation electrode electrochemical reactor to be used for treatment of Organic Wastewater
Technique.
To reach above-mentioned first purpose, the present invention uses following technical proposals：
A kind of rotation electrode tubular electrochemical reactor, including it is at least one electrochemical reactor shell, rotary anode, quiet
Only negative electrode, rotating shaft, motor, conducting slip ring and bearing.
Vertical tubulose or vertical cylindrical body of the electrochemical reactor shell for inner wall insulation, outside the electrochemical reactor
Shell bottom is provided with inlet, and top is provided with liquid outlet；The rotating shaft is disposed longitudinally in electrochemical reactor shell, rotating shaft it is upper
End passes the top of electrochemical reactor shell and is connected with the output shaft of motor, and it is anti-that the lower end of rotating shaft is fixedly installed on electrochemistry
In the bearing for answering device shell inner bottom part；The rotary anode is fixed in rotating shaft, and the static negative electrode is fixed on electrochemical reaction
On the inwall of device shell, the rotary anode and static negative electrode are arranged alternately；Set on the top surface of the electrochemical reactor shell
Conducting slip ring；The conducting slip ring is connecting the positive pole of rotary anode and D.C. regulated power supply.
Preferably, the axially disposed groove of the rotating shaft, the depth of groove is 0.5~1.5mm, to dispose wire；
Preferably, short-circuit between negative electrode and anode to prevent, described rotating shaft surface is provided with insulating barrier.
Preferably, the rotary anode outer rim is rounded, is network structure, and the inner edge of the static negative electrode 3 is rounded, is
Network structure；Preferably, the mesh of the network structure is rhombus.
Preferably, the material of the rotary anode and static negative electrode is selected from titanium-based DSA (Dimensionally Stable
Anode), stainless steel or titanium；Preferably, the distance between the inner edge of the static negative electrode 3 and rotating shaft are 3~5mm.
Preferably, the rotary anode is equidistant is fixed in rotating shaft, drives it radially to rotate by rotating shaft；
Preferably, the static negative electrode is equidistant is fixed on the inwall of electrochemical reactor shell.
Preferably, the vertical interval between the rotary anode and static negative electrode is 15~40mm；Preferably, vertical interval
For 25mm.
Preferably, the rotary anode is connected by the wire and conducting slip ring being distributed along axle with positive source.
Preferably, the static negative electrode is connected by spacing axle with power cathode.
Preferably, the conducting slip ring is carbon brush.
Preferably, the multistage reactor of the rotation electrode tubular electrochemical reactor, including the first rotation electrode tubular type
Electrochemical reactor, the second rotation electrode tubular electrochemical reactor, the 3rd rotation electrode tubular electrochemical reactor ...,
N rotation electrode tubular electrochemical reactors；Set on the output shaft of the motor of the first rotation electrode tubular electrochemical reactor
First travelling gear, the second rotation electrode tubular electrochemical reactor, the reaction of the 3rd rotation electrode tubular electrochemical
The travelling gear of upper end relative set second, the 3rd driving cog of device ... and N rotation electrode tubular electrochemical reactors
Wheel ... and N travelling gears, first travelling gear can be rotated by motor driven, be driven the second travelling gear, the successively
Three travelling gears ... and N travelling gears；
The top liquid outlet and the second rotation electrode tubular electrochemical of the first rotation electrode tubular electrochemical reactor
The top liquid outlet connection of reactor, the bottom inlet and the 3rd rotation electrode of the second rotation electrode tubular electrochemical reactor
The bottom inlet connection of tubular electrochemical reactor, the rest may be inferred, N rotation electrode tubular electrochemical reactors to the end
Bottom as final liquid outlet.
In order to reach above-mentioned second purpose, the present invention uses following technical proposals：
A kind of rotation electrode electrochemical reactor be used for treatment of Organic Wastewater technique, said apparatus can be applied to containing times
The treatment of Organic Wastewater of what composition.
It is used for the process for the treatment of of Organic Wastewater preferably for the device, it is specific as follows：
According to processing task, the disposal ability for the unit length reactor for studying to obtain with reference to previous experiments, accounting processing
Required total reactor length up to standard, so that it is determined that series connection number and discharge outlet position；Feed liquor of the waste water from first reactor
Mouthful enter, pass sequentially through single reactor, give up Organic substance in water continuous quilt during reactor Anodic and negative electrode is flowed through
Degraded, it is up to standard in the liquid outlet outflow of last reactor；It is 3~7 to adjust initial pH on wastewater value, rotating speed 50~
200rpm, rotating speed can adjust by frequency conversion instrument；Current density is 100~400A/m2, 4~10V of tank voltage, it is preferable that can pass through
Na is added into waste water2SO4Increase electrical conductivity Deng inorganic salts (specifically needs measurement medicament to add to reduce the tank voltage of electrolytic process
Addition sheet and power consumption).
Beneficial effects of the present invention are as follows：
It is mainly reflected in：1) compare and improve the conventional tubular reactor of mass-transfer performance by increasing flow velocity, the present invention is led to
Cross that raising of the rotating anode low speed rotation to mass transfer ability is more obvious, and organic matter removal speed is fast；2) electrode table is accelerated
The removing speed of bubble caused by face, avoiding bubble causes the reduction of electrode effective area in electrode surface attachment；3) this hair
Bright required reactor length and electrode area are small, and cost of investment is relatively low, and floor space is small；4) reactor can independent assortment (string
Connection is in parallel), it is simple to operate.
Brief description of the drawings
Fig. 1 is the structural representation of single rotation electrode electrochemical reactor；
Fig. 2 is multistage reactor schematic diagram；
Fig. 3 is the workflow schematic diagram of Multi-stage rotary electrode electro Chemical reactor.
Embodiment
Embodiment of the present invention is described further with reference to the accompanying drawings and examples.Those skilled in the art should
Understand, below specifically described content be illustrative and be not restrictive, should not be limited the scope of the invention with this.
Embodiment 1
It is shown in Figure 1, a kind of rotation electrode electrochemical reactor, including electrochemical reactor shell 1, rotary anode 2,
Static negative electrode 3, rotating shaft 6, motor 7, conducting slip ring 9 and bearing 10, the electrochemical reactor shell 1 are the vertical of inner wall insulation
Formula tubulose or vertical cylindrical body, the bottom of electrochemical reactor shell 1 are provided with inlet 4, and top is provided with liquid outlet 5；Described turn
Axle 6 is disposed longitudinally in electrochemical reactor shell 1, and the upper end of rotating shaft 6 passes top and the motor of electrochemical reactor shell 1
7 output shaft is connected, and the lower end of rotating shaft 6 is fixedly installed in the bearing 10 of the inner bottom part of electrochemical reactor shell 1；The rotation
Turn anode 2 to be fixed on 6 in rotating shaft, the static negative electrode 3 is fixed on the inwall of electrochemical reactor shell 1, the rotation sun
Pole 2 and static negative electrode 3 are arranged alternately；Conducting slip ring 9 is set on the top surface of the electrochemical reactor shell 1；The conducting slip ring 9
To connect the positive pole of rotary anode 2 and D.C. regulated power supply.
The axially disposed groove of rotating shaft, the depth of groove is 0.5~1.5mm, to dispose wire；Preferably,
Short-circuit between negative electrode and anode to prevent, described rotating shaft surface is provided with insulating barrier.
The outer rim of rotary anode 2 is rounded, is network structure, and the inner edge of the static negative electrode 3 is rounded, is netted knot
Structure；Preferably, the mesh of the network structure is rhombus.
The material of the rotary anode 2 and static negative electrode 3 is selected from titanium-based DSA (Dimensionally Stable
Anode), stainless steel or titanium；The distance between the inner edge of the static negative electrode 3 and rotating shaft are 4mm.
The rotary anode 2 is equidistant to be fixed in rotating shaft, drives it radially to rotate by rotating shaft；
The static negative electrode 3 is equidistant to be fixed on the inwall of electrochemical reactor shell 1；
Vertical interval between the rotary anode 2 and static negative electrode 3 is 15~40mm；Preferably, vertical interval is
25mm；
The rotary anode 2 is connected by the wire and conducting slip ring 9 being distributed along axle with positive source.
The static negative electrode 3 is connected by spacing axle with power cathode.
The conducting slip ring 9 is carbon brush.
Embodiment 2
Shown in Figure 2, level Four rotation electrode tubular electrochemical reactor, including the first rotation electrode tubular electrochemical are anti-
Answer device, the second rotation electrode tubular electrochemical reactor, the 3rd rotation electrode tubular electrochemical reactor, the 4th electric rotating pole pipe
Formula electrochemical reactor；The first driving cog is set on the output shaft of the motor of the first rotation electrode tubular electrochemical reactor
Wheel, the second rotation electrode tubular electrochemical reactor, the 3rd rotation electrode tubular electrochemical reactor and the 4th electric rotating
The travelling gear of upper end relative set second, the 3rd travelling gear and the 4th travelling gear of pole pipe formula electrochemical reactor, it is described
First travelling gear can drive rotation by motor 7, be driven the second travelling gear, the 3rd travelling gear and the 4th driving cog successively
Wheel；
The top liquid outlet and the second rotation electrode tubular electrochemical of the first rotation electrode tubular electrochemical reactor
The top liquid outlet connection of reactor, the bottom inlet and the 3rd rotation electrode of the second rotation electrode tubular electrochemical reactor
The bottom inlet connection of tubular electrochemical reactor, the top liquid outlet of the 3rd rotation electrode tubular electrochemical reactor and the
Four rotation electrode tubular electrochemical reactor top liquid outlet connections, the 4th last rotation electrode tubular electrochemical reactor
Bottom is as final liquid outlet.
Embodiment 3
So that wastewater containing phenol is handled as an example.
Experimental provision used in the experimentation shows referring to Fig. 3, and it is anti-to include four single rotation electrode tubular electrochemicals
Answer reactor group 13, the shell 1 of single reactor, rotary anode 2, static negative electrode 3, inlet 4, liquid outlet 5 that device forms, turn
Axle 6, motor 7, reaction rotating shaft connection gear 8, conducting slip ring 9, bearing 10, reactor flange 11, driving-chain 12, DC voltage-stabilizing electricity
Source 14, reservoir 15, infusion pump 16, flowmeter 17, sampling valve 18, appliance stand 19, frequency conversion instrument 20.As Fig. 3 shows, described is anti-
Answer device group 13 to be formed by connecting by 4 single rotation electrode electrochemical reactors, driven by the connection gear 8 of driving-chain 12 all
Rotating shaft 6 rotates；The shell long 1000mm, diameter 100mm of each reactor.The rotary anode 2 passes through the wire that is distributed along axle
And conducting slip ring 9 is connected with the positive pole of D.C. regulated power supply 14, described static negative electrode 3 passes through spacing axle and power cathode phase
Even, described rotary anode 2 is the netted Ti/PbO with oxygen evolution potential2, mesh is rhombus, and diagonal a, b length are respectively
4mm and 7mm, static negative electrode 3 are the preferable titanium net of corrosion resistance, and diagonal a, b length are respectively 5mm and 12mm.Described negative electrode
Be alternately arranged with anode, cathode center not with shaft contacts.
The wastewater containing phenol for being 500mg/L with the combined experimental device processing initial concentration shown in accompanying drawing 3, wastewater degradation mistake
Cheng Zhong, organic wastewater enters through water inlet 1, while opens D.C. regulated power supply, and regulation current density is 150A/m2, Wastewater by Electric
Conductance is 5ms/cm, and required tank voltage is about 5.5V, and processing time 66min, phenol content is about 0.01mg/L in water after processing,
Phenol after handling in water is completely removed, and COD CODs drop to 200mg/L by the 1190mg/L before degrading, and is given up
Water biodegradability (B/C) by original 0.023 improve to after degrading 0.78, illustrate to comprise only in the waste water after degrading a small amount of
Small organic molecule.
The present apparatus can be applied to the treatment of Organic Wastewater containing any composition, be not limited to the application described in embodiment.
Claims (10)
- A kind of 1. rotation electrode tubular electrochemical reactor, it is characterised in that：Including at least one electrochemical reactor shell (1), rotary anode (2), static negative electrode (3), rotating shaft (6), motor (7), conducting slip ring (9) and bearing (10), the electrochemistry Shell of reactor (1) for inner wall insulation vertical tubulose or vertical cylindrical body, electrochemical reactor shell (1) bottom be provided with into Liquid mouth (4), top are provided with liquid outlet (5)；The rotating shaft (6) is disposed longitudinally in electrochemical reactor shell (1), rotating shaft (6) Upper end pass the top of electrochemical reactor shell (1) and be connected with the output shaft of motor (7), the lower end of rotating shaft (6) is fixed It is arranged in the bearing (10) of electrochemical reactor shell (1) inner bottom part；The rotary anode (2) is fixed in rotating shaft (6), institute State static negative electrode (3) to be fixed on the inwall of electrochemical reactor shell (1), the rotary anode (2) and static negative electrode (3) are handed over For setting；Conducting slip ring is set on the top surface of the electrochemical reactor shell (1).
- 2. rotation electrode tubular electrochemical reactor according to claim 1, it is characterised in that：The shaft length is 600~2100mm, a diameter of 8~30mm；The axially disposed groove of rotating shaft, the depth of groove are 0.5~1.5mm；It is excellent Selection of land, short-circuit between negative electrode and anode to prevent, described rotating shaft surface is provided with insulating barrier.
- 3. rotation electrode tubular electrochemical reactor according to claim 1, it is characterised in that：The rotary anode (2) Outer rim is rounded, is network structure, and the inner edge of the static negative electrode (3) is rounded, is network structure；The rotary anode (2) Titanium-based DSA (Dimensionally Stable Anode), stainless steel or titanium are selected from the material of static negative electrode (3)；Preferably, The distance between the inner edge of the static negative electrode (3) and rotating shaft are 3~5mm.
- 4. rotation electrode tubular electrochemical reactor according to claim 1, it is characterised in that：The rotary anode (2) is equidistant to be fixed in rotating shaft, drives it radially to rotate by rotating shaft；The rotary anode (2) rotating speed is 30~500rpm.The static negative electrode (3) is equidistant to be fixed on the inwall of electrochemical reactor shell (1).
- 5. rotation electrode tubular electrochemical reactor according to claim 1, it is characterised in that：The rotary anode (2) Vertical interval between static negative electrode (3) is 15~40mm；Preferably, vertical interval 25mm.
- 6. rotation electrode tubular electrochemical reactor according to claim 1, it is characterised in that：The conducting slip ring (9) For carbon brush.
- 7. include the multistage reactor of the rotation electrode tubular electrochemical reactor as described in claim 1-6 is any, its feature It is：Including the first rotation electrode tubular electrochemical reactor, the second rotation electrode tubular electrochemical reactor, the 3rd electric rotating Pole pipe formula electrochemical reactor ..., N rotation electrode tubular electrochemical reactors；The first rotation electrode tubular electrochemical The first travelling gear, the second rotation electrode tubular electrochemical reactor, the 3rd rotation are set on the output shaft of the motor of reactor The upper end relative set second for turning electrode tubular type electrochemical reactor ... and N rotation electrode tubular electrochemical reactors is driven Gear, the 3rd travelling gear ... and N travelling gears, first travelling gear can be driven by motor (7) to be rotated, and is passed successively Dynamic second travelling gear, the 3rd travelling gear ... and N travelling gears；The top liquid outlet of the first rotation electrode tubular electrochemical reactor and the second rotation electrode tubular electrochemical react The top liquid outlet connection of device, the bottom inlet and the 3rd rotation electrode tubular type of the second rotation electrode tubular electrochemical reactor The bottom inlet connection of electrochemical reactor, the rest may be inferred, under N rotation electrode tubular electrochemical reactors to the end Portion is as final liquid outlet.
- 8. application of the rotation electrode tubular electrochemical reactor in organic wastewater is handled as described in claim 1-6 is any.
- 9. application of the multistage reactor as claimed in claim 7 in organic wastewater is handled.
- 10. application according to claim 9, it is characterised in that：According to processing task and the disposal ability of single reactor And dimension information, the reactor quantity of combination, regulating water quality and operating parameter required for adjusting, including：Adjust initial pH on wastewater It is worth for 3~7, rotary anode 30~500rpm of rotating speed, passes through frequency conversion instrument and adjust rotating speed；Current density is 100~400A/m2, groove 4~10V of voltage, by adding Na into waste water2SO4Increase electrical conductivity Deng inorganic salts to reduce the tank voltage of electrolytic process；Waste water Enter through inlet, detect liquid saliva matter, discharged after up to standard.
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| CN201610836992.0A CN107840416B (en) | 2016-09-21 | 2016-09-21 | Rotary electrode tube type electrochemical reactor and application thereof |
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| CN201610836992.0A CN107840416B (en) | 2016-09-21 | 2016-09-21 | Rotary electrode tube type electrochemical reactor and application thereof |
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| CN107840416B CN107840416B (en) | 2020-12-25 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862484A (en) * | 2018-05-27 | 2018-11-23 | 北京化工大学 | A kind of device of electric flocculation processing difficult for biological degradation industrial wastewater |
| CN109650497A (en) * | 2019-01-28 | 2019-04-19 | 河南师范大学 | A kind of dual rotary electrode electric catalysis reactor and its application |
| CN110180331A (en) * | 2019-05-05 | 2019-08-30 | 淄博棠鸣机电科技有限公司 | A kind of waste gas purification environmental protection equipment |
| CN114314766A (en) * | 2021-12-31 | 2022-04-12 | 无锡市张华医药设备有限公司 | Rotatory foam 3D electrode electrochemical reactor and waste water oxidation reaction unit |
| CN114959752A (en) * | 2022-04-29 | 2022-08-30 | 浙江工业大学 | Electrochemical reactor, electrochemical system and application of electrochemical reactor and system in electrolytic synthesis of 2, 6-dichlorobenzonitrile |
| KR102537057B1 (en) * | 2022-04-14 | 2023-05-26 | (주)미시간기술 | Livestock wastewater treatment system using electrochemical oxidation and biological process |
| CN117164068A (en) * | 2023-11-02 | 2023-12-05 | 江苏丰又环境科技有限公司 | Electrocatalytic malodorous wastewater treatment device based on BDD anode |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862484A (en) * | 2018-05-27 | 2018-11-23 | 北京化工大学 | A kind of device of electric flocculation processing difficult for biological degradation industrial wastewater |
| CN109650497A (en) * | 2019-01-28 | 2019-04-19 | 河南师范大学 | A kind of dual rotary electrode electric catalysis reactor and its application |
| CN110180331A (en) * | 2019-05-05 | 2019-08-30 | 淄博棠鸣机电科技有限公司 | A kind of waste gas purification environmental protection equipment |
| CN110180331B (en) * | 2019-05-05 | 2021-12-17 | 台州市德长环保有限公司 | Waste gas purification environmental protection equipment |
| CN114314766A (en) * | 2021-12-31 | 2022-04-12 | 无锡市张华医药设备有限公司 | Rotatory foam 3D electrode electrochemical reactor and waste water oxidation reaction unit |
| CN114314766B (en) * | 2021-12-31 | 2023-10-31 | 无锡市张华医药设备有限公司 | Rotary foam 3D electrode electrochemical reactor and wastewater oxidation reaction device |
| KR102537057B1 (en) * | 2022-04-14 | 2023-05-26 | (주)미시간기술 | Livestock wastewater treatment system using electrochemical oxidation and biological process |
| CN114959752A (en) * | 2022-04-29 | 2022-08-30 | 浙江工业大学 | Electrochemical reactor, electrochemical system and application of electrochemical reactor and system in electrolytic synthesis of 2, 6-dichlorobenzonitrile |
| CN114959752B (en) * | 2022-04-29 | 2024-02-13 | 浙江工业大学 | Electrochemical reactor, system and application thereof in electrolytic synthesis of 2, 6-dichlorobenzonitrile |
| CN117164068A (en) * | 2023-11-02 | 2023-12-05 | 江苏丰又环境科技有限公司 | Electrocatalytic malodorous wastewater treatment device based on BDD anode |
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|---|---|
| CN107840416B (en) | 2020-12-25 |
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