CN105036261B - A kind of internal-circulation type iron-carbon micro-electrolysis reactor - Google Patents
A kind of internal-circulation type iron-carbon micro-electrolysis reactor Download PDFInfo
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Abstract
The invention discloses a kind of internal-circulation type iron-carbon micro-electrolysis reactor, its structure includes：Cylinder (1), water inlet pipe (2), water-locator (3), air inlet pipe (4) and inner circulating tube (5)；Sewage is distributed in iron carbon filler (a) of cylinder (1) bottom via water inlet pipe (2) and water-locator (3) successively, and constantly purified in iron carbon filler (a) contact process, until forming water outlet after purification, discharged by cylinder delivery port (6)；And gas is entered into iron carbon filler (a) of cylinder (1) bottom via air inlet pipe (4), the aeration bubbles of motion upwards are formed；Aeration bubbles drive iron carbon filler (a) to pass through inner circulating tube (5), and are discharged to after purification in water outlet；Iron carbon filler (a) is constantly settled, until the stacking bed of iron carbon filler (a) is fallen back to, so as to form the aeration cycle of iron carbon filler (a).It can be seen that, not only energy consumption is low for the embodiment of the present invention, wear and tear small, simple to operate, and can continuously and efficiently process sewage.
Description
Technical field
The present invention relates to electrochemistry field of sewage treatment, more particularly to a kind of reaction of internal-circulation type iron-carbon micro-electrolysis
Device.
Background technology
In sewage disposal, iron-carbon micro-electrolysis are primarily referred to as being mixed into iron filings and carbon granules the iron carbon of iron and carbon close contact
Bed, when treatment sewage is by iron carbon bed, active iron can form anode, and inert carbon can form negative electrode, and this will
Constitute numerous micro- galvanic cell in sewage, and micro- galvanic cell the two poles of the earth can occur a series of electrochemistry redox it is anti-
Should, such that it is able to reach the purpose of contaminant degradation in sewage.Iron-carbon micro-electrolysis not only have low cost, treatment efficiency it is high,
The advantages of convenient operation and management, and can be to various organic sewages such as high chroma, salinity high, high-concentration hardly-degradables at
Reason, when the preconditioning technique before iron-carbon micro-electrolysis are used as into a kind of biochemical treatment, iron-carbon micro-electrolysis can substantially reduce organic
Thing concentration, effectively removal or reduction sewage toxicity, improve the biodegradability of sewage, therefore iron-carbon micro-electrolysis are particularly well-suited to doctor
The sewage disinfection treatment operation of the heavy polluted industries such as medicine, chemical industry, plating, printing and dyeing.
At present, existing iron-carbon micro-electrolysis technology at least has the following disadvantages：(1) iron filings be easily passivated it is hardened, and finally
Completely plugged, this can make iron carbon bed lose sewage treatment capacity.(2) iron filings are easily consumed, it is necessary to often by residue by quick
Carbon particle take out, be refilled by after mixing with new iron filings, waste time and energy.(3) iron ion easily forms heavy when pH is higher
Form sediment, and precipitate the gap that can block iron carbon bed, so that iron carbon bed wastewater treatment efficiency is greatly reduced.In order to solve these
Problem, occurs in that the iron-carbon micro-electrolysis technology based on pump reflux stirring and the micro- electricity of iron carbon based on mixer stirring in the prior art
Solution technology, but both technologies all have that high energy consumption, the big, treatment effeciency that weares and teares are low.
The content of the invention
For above-mentioned weak point of the prior art, the invention provides a kind of reaction of internal-circulation type iron-carbon micro-electrolysis
Device, not only energy consumption is low, wear and tear small, simple to operate, and can continuously and efficiently process sewage.
The purpose of the present invention is achieved through the following technical solutions：
A kind of internal-circulation type iron-carbon micro-electrolysis reactor, for being purified to sewage by iron carbon filler a, including：Cylinder
Body 1, water inlet pipe 2, water-locator 3, air inlet pipe 4 and inner circulating tube 5；Water inlet pipe 2 is extend into the inside of cylinder 1 by the side wall of cylinder 1,
And connected with the water-locator 3 inside cylinder 1, and the outlet pipe of water-locator 3 is distributed in the bottom of cylinder 1；The top of cylinder 1
Side wall be provided with cylinder delivery port 6；Air inlet pipe 4 is located at the bottom of cylinder 1, and the gas outlet of air inlet pipe 4 extend into cylinder 1
Inside；At least one inner circulating tube 5 is vertically located at the inside of cylinder 1, and every inner circulating tube 5 is by the top of cylinder 1
The bottom of cylinder 1 is extended to, and the bottom opening of every inner circulating tube 5 is respectively positioned on the surface of the gas outlet of air inlet pipe 4；Cylinder
1 top is provided with cylinder gas outlet 11；Iron carbon filler a is loaded on the inside of cylinder 1, and iron carbon filler a it is stacking bed most
Open top of the high position less than inner circulating tube 5；
Sewage is flow in water-locator 3 via water inlet pipe 2, and outlet pipe by water-locator 3 is distributed to the bottom of cylinder 1
In iron carbon filler a；Under the promotion of follow-up sewage, sewage is moved upwards through the gap of iron carbon filler a, and is filled out with iron carbon
Constantly purified in material a contact processes, form water outlet after purification, then discharged by cylinder delivery port 6；
Gas is entered into the iron carbon filler a of the bottom of cylinder 1 via air inlet pipe 4, forms the aeration bubbles of motion upwards；Expose
Gas bubbles entrain iron carbon filler a is entered into inner circulating tube 5 by the bottom opening of inner circulating tube 5, and by the top of inner circulating tube 5
Portion opening is discharged to after purifying in water outlet；Aeration bubbles are discharged through water outlet after purification by cylinder gas outlet 11；And followed by interior
After the iron carbon filler a of the open top discharge of endless tube 5 is entered into after purification in water outlet, constantly sedimentation, until fall back to iron carbon filling out
Material a's is stacking bed, so as to form the aeration cycle of iron carbon filler a.
Preferably, the top of cylinder 1 is provided with current stabilization lid 7；Cylinder gas outlet 11 is vertically located at the middle part of current stabilization lid 7；Current stabilization
The bottom of lid 7 is provided with toroidal membrane 71 vertically；The toroidal membrane 71 by the open top of inner circulating tube 5 and cylinder delivery port 6 every
Open, and the toroidal membrane 71 bottom less than inner circulating tube 5 open top.
Preferably, the part that cylinder delivery port 6 is located in cylinder 1 upwardly extends, so as to form an effluent weir for annular
61；Open top of the top of the effluent weir 61 higher than inner circulating tube 5；Water outlet is overflowed in effluent weir 61 after purification, then by cylinder
Body delivery port 6 is discharged.
Preferably, the top sidewall of inner circulating tube 5 is provided with the Scrubbing apparatus for being cleaned to iron carbon filler a surfaces
51。
Preferably, the bottom of every outlet pipe of water-locator 3 is equipped with multiple apopores 31.
Preferably, the bottom of cylinder 1 is provided with the emptying flange 8 for the iron carbon filler a in cylinder 1 to be discharged.
Preferably, when inner circulating tube 5 is many, many inner circulating tubes 5 are distributed on the inside of cylinder 1.
Preferably, the outlet pipe of water-locator 3 is in cross symmetrical in the bottom of cylinder 1.
Preferably, water-locator 3 and inner circulating tube 5 are integral type structure；Inner circulating tube 5 from top to bottom passes vertically through water-locator
3, and the top of water-locator 3 and the bottom of the delivery position of inner circulating tube 5 and water-locator 3 and the handing-over position of inner circulating tube 5
Put and use encapsulation process.
As seen from the above technical solution provided by the invention, the internal-circulation type iron carbon that the embodiment of the present invention is provided is micro-
Electrolysis reactor is fed gas into the iron carbon filler a of the bottom of cylinder 1 by air inlet pipe 4, forms the aeration gas of motion upwards
Bubble, and the aeration bubbles can drive iron carbon filler a through inner circulating tube 5, and be discharged to after purification in water outlet, then gradually settle
To iron carbon filler a it is stacking bed on, so as to form the aeration cycle of iron carbon filler a；In the aeration interior circulation of this iron carbon filler a
Under effect, iron filings will not occur passivation it is hardened, the gap of iron carbon filler a is not plugged up, iron-carbon micro-electrolysis reaction can be continuous
Stabilization is carried out, and the stacking bed sewage purification ability of iron carbon filler a will not decline, so that the internal-circulation type iron-carbon micro-electrolysis react
Device not only can continuously and efficiently process sewage, and energy consumption is low, wear and tear small, simple to operate.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will use needed for embodiment description
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
The structural representation of the internal-circulation type iron-carbon micro-electrolysis reactor that Fig. 1 is provided by the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground description, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Inventive embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to protection scope of the present invention.
Internal-circulation type iron-carbon micro-electrolysis reactor provided by the present invention is described in detail below.
As shown in figure 1, a kind of internal-circulation type iron-carbon micro-electrolysis reactor, for being carried out only to sewage by iron carbon filler a
Change, its concrete structure includes：Cylinder 1, water inlet pipe 2, water-locator 3, air inlet pipe 4 and inner circulating tube 5；Water inlet pipe 2 by cylinder 1 side
Wall extend into the inside of cylinder 1, and is connected with the water-locator 3 inside cylinder 1, and the outlet pipe of water-locator 3 is distributed in
The bottom of cylinder 1；The side wall at the top of cylinder 1 is provided with cylinder delivery port 6.Air inlet pipe 4 is located at the bottom of cylinder 1, and air inlet
The gas outlet of pipe 4 extend into the inside of cylinder 1；At least one inner circulating tube 5 is located at the inside of cylinder 1 vertically, and in every
Circulation pipe 5 extends to the bottom of cylinder 1 by the top of cylinder 1, and the bottom opening of every inner circulating tube 5 is respectively positioned on air inlet pipe
The surface of 4 gas outlet；The top of cylinder 1 is provided with cylinder gas outlet 11.Iron carbon filler a is loaded on the inside of cylinder 1, and
Open top of the stacking bed extreme higher position of iron carbon filler a less than inner circulating tube 5.
Specifically, the course of work of the internal-circulation type iron-carbon micro-electrolysis reactor is as follows：
The running of A, water：Sewage is flow in water-locator 3 via water inlet pipe 2, and the outlet pipe point for passing through water-locator 3
It is scattered in the iron carbon filler a of the bottom of cylinder 1；Under the promotion of follow-up sewage, sewage is transported upwards through the gap of iron carbon filler a
It is dynamic, and in iron carbon filler a contact processes, iron-carbon micro-electrolysis reaction constantly purifies sewage, forms water outlet after purification；When
After water outlet moves upward to cylinder delivery port 6 after purification, discharged by cylinder delivery port 6.
B, gas running：Gas is entered into the iron carbon filler a of the bottom of cylinder 1 via air inlet pipe 4, forms fortune upwards
Dynamic aeration bubbles；Aeration bubbles drive iron carbon filler a to be entered into inner circulating tube 5 by the bottom opening of inner circulating tube 5, and lead to
The open top for crossing inner circulating tube 5 is discharged to after purification in water outlet；Aeration bubbles water outlet through after purifying, and by cylinder gas outlet
11 discharges；And after being entered into after purification in water outlet by the iron carbon filler a that the open top of inner circulating tube 5 is discharged, continuous sedimentation (example
Such as：Iron carbon filler a is constantly settled in the decanting zone b shown in Fig. 1), until the stacking bed of iron carbon filler a is fallen back to, so that shape
Into the aeration interior circulation of iron carbon filler a.Iron carbon filler a aeration interior circulation effect under, iron filings will not occur passivation it is hardened,
The gap of iron carbon filler a is not plugged up, and iron-carbon micro-electrolysis reaction can be carried out with continuous-stable, and iron carbon filler a's is stacking bed
Sewage purification ability will not decline, so that the internal-circulation type iron-carbon micro-electrolysis reactor can be with low energy consumption, the small abrasively company of realization
Continuous efficiently sewage disposal.Further, since the iron carbon filler a in the internal-circulation type iron-carbon micro-electrolysis reactor is aeration interior circulation
, therefore after the internal-circulation type iron-carbon micro-electrolysis reactor runs a period of time, the iron filings consumption in cylinder 1 need to only pass through
Cylinder gas outlet 11 recharges, it is seen then that the internal-circulation type micro- electricity of iron carbon to iron filings are supplemented inside cylinder 1 without dismounting
Solution reactor is simple to operate, time saving and energy saving.
Further, the internal-circulation type iron-carbon micro-electrolysis reactor can include scheme is implemented as follows：
(1) top of cylinder 1 is preferably provided with current stabilization lid 7；Cylinder gas outlet 11 is vertically located at the middle part of current stabilization lid 7；Current stabilization
The bottom of lid 7 is provided with toroidal membrane 71 vertically；The toroidal membrane 71 by the open top of inner circulating tube 5 and cylinder delivery port 6 every
Open, and the toroidal membrane 71 bottom less than inner circulating tube 5 open top.When aeration bubbles drive iron carbon filler a by interior
When the open top of circulation pipe 5 is discharged, water outlet can produce larger fluctuation after the purification of the top open part of inner circulating tube 5, the ring
Shape dividing plate 71 can play good current stabilization effect, and can effectively stop that iron carbon filler a sputters cylinder delivery port 6.
(2) part that cylinder delivery port 6 is located in cylinder 1 upwardly extends, so as to form an effluent weir for annular 61；Should
Open top of the top of effluent weir 61 higher than inner circulating tube 5；Water outlet is overflowed in effluent weir 61 after purification, then by cylinder water outlet
Mouth 6 is discharged.It is this overflow to effluent weir 61 by water discharge by way of, can not only ensure the stabilization of water yield, Er Qieke
To avoid iron carbon filler a or not sufficiently cleaned up water outlet from being discharged by cylinder delivery port 6 under wave action.
(3) it is preferably provided with for washing by rubbing with the hands that the surface to iron carbon filler a is cleaned on the side wall at the top of inner circulating tube 5
Device 51；Under the obstruct of toroidal membrane 71, by inner circulating tube 5 open top discharge iron carbon filler a only can by annular every
Decanting zone b between plate 71 and inner circulating tube 5 is settled downwards, therefore Scrubbing apparatus 51 in the top sidewall of inner circulating tube 5 can
Effectively cleaned with the surface to the iron carbon filler a in sedimentation, this can further prevent iron filings surface to be passivated.
(4) preferably in the bottom of cylinder 1 in cross symmetrical, and every of water-locator 3 goes out the outlet pipe of water-locator 3
The bottom of water pipe is preferably equipped with multiple apopores 31, and this can make inlet distribution more uniform, be conducive to sewage purification.
(5) bottom of cylinder 1 is provided with the emptying flange 8 for the iron carbon filler a in cylinder 1 to be discharged.When the interior circulation
During formula iron-carbon micro-electrolysis reactor normal work, emptying flange 8 may be at closure state, and iron carbon filler a will not be from emptying method
Blue 8 discharge；And at the end of working as the dirty water decontamination handles, only emptying flange 8 need to be adjusted to open mode, the iron carbon in cylinder 1 is filled out
Material a can just be discharged from cylinder 1, and this is not only easy to operate, and time saving and energy saving.
(6) when inner circulating tube 5 is many, many inner circulating tubes 5 can be distributed on the inside of cylinder 1, and air inlet pipe 4
Gas outlet can also be multiple, and the bottom opening of every inner circulating tube 5 is each positioned at just going up for gas outlet for air inlet pipe 4
Side.
(7) water-locator 3 and inner circulating tube 5 are integral type structure；Inner circulating tube 5 from top to bottom passes vertically through water-locator 3, and
And the top of water-locator 3 is equal with the delivery position of inner circulating tube 5 with the delivery position of inner circulating tube 5 and the bottom of water-locator 3
Using encapsulation process.
(8) in iron carbon filler a, iron is preferably 1 with the volume ratio of carbon:1, this ratio can react iron-carbon micro-electrolysis
More sustainedly and stably carry out, may advantageously facilitate the reactor and continuously and efficiently work.In actual applications, treated for different
Treatment sewage, can be according to the iron-carbon ratio of actual conditions flexible modulation aeration rate and iron carbon filler a example.
As fully visible, not only energy consumption is low, wear and tear small, simple to operate for the embodiment of the present invention, and can be located in continuous high-efficient
Reason sewage, therefore internal-circulation type iron-carbon micro-electrolysis reactor provided by the present invention can be widely applied to various difficult degradations, color high
In degree, high concentration, the preliminary clearning treatment of the trade effluent of salinity high.
In order to more clearly from show technical scheme provided by the present invention and produced technique effect, below by
Specific embodiment is described in detail to internal-circulation type iron-carbon micro-electrolysis reactor provided by the present invention.
Embodiment one
Using the internal-circulation type iron-carbon micro-electrolysis reactor described in above-mentioned technical proposal respectively to the dyestuff of configuration simulation
The dye wastewater of sewage and reality carries out preliminary clearning treatment, and its concrete processing procedure is as follows：First with sulfuric acid by dye wastewater
PH value to 2.0~4.0, in then passing to internal-circulation type iron-carbon micro-electrolysis reactor provided by the present invention；Dye wastewater is passed through
Water-locator 3 evenly spreads to the iron carbon filler a of the bottom of cylinder 1, and (volume ratio of iron and carbon is 1:1) in, and through iron carbon filler
Move upwards in the gap of a；Iron carbon filler a is aerated interior circulation in the internal-circulation type iron-carbon micro-electrolysis reactor, and treatment 1~2 is small
Shi Hou, you can complete the preliminary clearning treatment to dye wastewater.It is possible to further add in the dye wastewater after being processed to preliminary clearning
Enter alkali, then carry out follow-up biochemical treatment, so as to can just realize the complete purified treatment to dye wastewater.
Through measuring and calculating, after the dye wastewater to configuration simulation carries out above-mentioned preliminary clearning treatment, the clearance of COD can reach
90.2%, chroma removal rate can reach 86.9%, BOD5The ratio of/COD improves 15 times；Enter to actual dye wastewater
After the above-mentioned preliminary clearning treatment of row, the clearance of COD can reach 73.5%, and chroma removal rate can reach 98.5%, BOD5/
The ratio of COD improves 23 times.
As fully visible, not only energy consumption is low, wear and tear small, simple to operate for the embodiment of the present invention, and can be located in continuous high-efficient
Reason sewage.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
Should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (9)
1. a kind of internal-circulation type iron-carbon micro-electrolysis reactor, for being purified to sewage by iron carbon filler (a), its feature exists
In, including：Cylinder (1), water inlet pipe (2), water-locator (3), air inlet pipe (4) and inner circulating tube (5)；
Water inlet pipe (2) is extend into the inside of cylinder (1) by the side wall of cylinder (1), and with located at the internal water-locator of cylinder (1)
(3) connect, and the outlet pipe of water-locator (3) is distributed in the bottom of cylinder (1)；Side wall at the top of cylinder (1) is provided with cylinder and goes out
The mouth of a river (6)；
Air inlet pipe (4) is located at the bottom of cylinder (1), and the gas outlet of air inlet pipe (4) extend into the inside of cylinder (1)；At least
A piece inner circulating tube (5) extends located at the inside of cylinder (1), and every inner circulating tube (5) by the top of cylinder (1) vertically
To the bottom of cylinder (1), and the bottom opening of every inner circulating tube (5) is respectively positioned on the surface of the gas outlet of air inlet pipe (4)；Cylinder
Cylinder gas outlet (11) is provided with the top of body (1)；
Iron carbon filler (a) is loaded on the inside of cylinder (1), and the stacking bed extreme higher position of iron carbon filler (a) is followed less than in
The open top of endless tube (5)；
Sewage is flow in water-locator (3) via water inlet pipe (2), and outlet pipe by water-locator (3) is distributed under cylinder (1)
In iron carbon filler (a) in portion；Under the promotion of follow-up sewage, sewage is moved upwards through the gap of iron carbon filler (a), and
Constantly purified with iron carbon filler (a) contact process, form water outlet after purification, then discharged by cylinder delivery port (6)；
Gas is entered into iron carbon filler (a) of cylinder (1) bottom via air inlet pipe (4), forms the aeration bubbles of motion upwards；
Aeration bubbles drive iron carbon filler (a) to be entered into inner circulating tube (5) by the bottom opening of inner circulating tube (5), and are followed by interior
The open top of endless tube (5) is discharged to after purifying in water outlet；Aeration bubbles water outlet through after purifying, and by cylinder gas outlet (11)
Discharge；And after being entered into after purification in water outlet by iron carbon filler (a) that the open top of inner circulating tube (5) is discharged, constantly sedimentation,
Until the stacking bed of iron carbon filler (a) is fallen back to, so as to form the aeration cycle of iron carbon filler (a).
2. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1, it is characterised in that the top of cylinder (1) sets
There is current stabilization lid (7)；Cylinder gas outlet (11) is vertically located at the middle part of current stabilization lid (7)；The bottom of current stabilization lid (7) is provided with annular vertically
Dividing plate (71)；The toroidal membrane (71) separates the open top of inner circulating tube (5) with cylinder delivery port (6), and the annular
Open top of the bottom of dividing plate (71) less than inner circulating tube (5).
3. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, it is characterised in that cylinder delivery port (6)
Part in cylinder (1) upwardly extends, so as to form an effluent weir for annular (61)；The top of the effluent weir (61) is high
In the open top of inner circulating tube (5)；Water outlet is overflowed in effluent weir (61) after purification, then is discharged by cylinder delivery port (6).
4. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, it is characterised in that inner circulating tube (5)
The side wall at top is provided with the Scrubbing apparatus (51) cleaned for the surface to iron carbon filler (a).
5. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, it is characterised in that water-locator (3) it is every
The bottom of root outlet pipe is equipped with multiple apopores (31).
6. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, it is characterised in that the bottom of cylinder (1)
It is provided with the emptying flange (8) for iron carbon filler (a) in cylinder (1) to be discharged.
7. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, it is characterised in that when inner circulating tube (5)
For many when, many inner circulating tubes (5) are distributed on the inside of cylinder (1).
8. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, it is characterised in that water-locator (3) go out
Water pipe is in the bottom of cylinder (1) in cross symmetrical.
9. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, it is characterised in that water-locator (3) and interior
Circulation pipe (5) is integral type structure；Inner circulating tube (5) from top to bottom passes vertically through water-locator (3), and water-locator (3) top
Portion uses sealing with the delivery position of inner circulating tube (5) and the bottom of water-locator (3) with the delivery position of inner circulating tube (5)
Treatment.
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| CN107673522A (en) * | 2017-11-16 | 2018-02-09 | 北京石油化工学院 | A kind of coked waste water deep treatment method |
| CN107935128A (en) * | 2017-12-11 | 2018-04-20 | 广东石油化工学院 | A kind of coupling fluidized bed and moving bed micro-electrolysis reactor |
| CN110079367A (en) * | 2019-05-07 | 2019-08-02 | 北京石油化工学院 | A kind of hydrogen sulfide in natural gas processing method based on interior circulation light electrolysis |
| CN111807583A (en) * | 2020-07-31 | 2020-10-23 | 山东大学 | Antibiotic wastewater degradation method and device based on combined action of electrolysis and cavitation |
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