CN204939044U - 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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- CN204939044U CN204939044U CN201520670884.1U CN201520670884U CN204939044U CN 204939044 U CN204939044 U CN 204939044U CN 201520670884 U CN201520670884 U CN 201520670884U CN 204939044 U CN204939044 U CN 204939044U
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Abstract
The utility model discloses a kind of internal-circulation type iron-carbon micro-electrolysis reactor, its structure comprises: cylindrical shell (1), water inlet pipe (2), water distributor (3), inlet pipe (4) and inner circulating tube (5); Sewage is distributed in iron carbon filler (a) of cylindrical shell (1) bottom via water inlet pipe (2) and water distributor (3) successively, and with iron carbon filler (a) contact process in constantly purify, until water outlet after forming purification, discharged by cylindrical shell water outlet (6); And gas enters into iron carbon filler (a) of cylindrical shell (1) bottom via inlet pipe (4), form the aeration bubbles moved upward; Aeration bubbles drives iron carbon filler (a) through inner circulating tube (5), and after being discharged to purification in water outlet; Iron carbon filler (a) constantly sedimentation, until fall back to the stacking bed of iron carbon filler (a), thus forms the aeration cycle of iron carbon filler (a).Visible, the utility model embodiment not only energy consumption low, wear and tear little, simple to operate, and can to dispose of sewage continuous high-efficient.
Description
Technical field
The utility model relates to electrochemistry field of sewage treatment, particularly relates to a kind of internal-circulation type iron-carbon micro-electrolysis reactor.
Background technology
In sewage disposal; iron-carbon micro-electrolysis mainly refers to iron carbon bed iron filings and carbon granules being mixed into iron and carbon close contact; when treatment sewage is through iron carbon bed; active iron can form anode; and the carbon of inertia can form negative electrode; this will form numerous micro-galvanic cell in sewage, and a series of electrochemical redox reaction can occur at the two poles of the earth of micro-galvanic cell, thus can reach the object of contaminant degradation in sewage.Iron-carbon micro-electrolysis not only has the advantages such as cost is low, treatment efficiency is high, convenient operation and management, and can process various organic sewages such as high chroma, high salinity, high-concentration hardly-degradables, when iron-carbon micro-electrolysis is used as the preconditioning technique before a kind of biochemical treatment, iron-carbon micro-electrolysis can reduce organic concentration greatly, effective removal or reduction sewage toxicity, improve the biodegradability of sewage, therefore iron-carbon micro-electrolysis is specially adapted to the sewage disinfection treatment operation of the heavy polluted industries such as medicine, chemical industry, plating, printing and dyeing.
At present, at least there is following shortcoming in existing iron-carbon micro-electrolysis technology: the easy passivation of (1) iron filings is hardened, and finally blocks completely, and this can make iron carbon bed lose sewage treatment capacity.(2) iron filings are easily consumed fast, need often to be taken out by remaining carbon granule, again load, waste time and energy after mixing with new iron filings.(3) iron ion easily forms precipitation when pH is higher, and precipitation can block the gap of iron carbon bed, thus iron carbon bed wastewater treatment efficiency is significantly reduced.In order to address these problems, occurred the iron-carbon micro-electrolysis technology stirred based on pump reflux and the iron-carbon micro-electrolysis technology stirred based on stirrer in prior art, but all there is the problems such as energy consumption is high, wearing and tearing are large, processing efficiency is low in these two kinds of technology.
Summary of the invention
For above-mentioned weak point of the prior art, the utility model provides a kind of internal-circulation type iron-carbon micro-electrolysis reactor, not only energy consumption low, wear and tear little, simple to operate, and can to dispose of sewage continuous high-efficient.
The purpose of this utility model is achieved through the following technical solutions:
A kind of internal-circulation type iron-carbon micro-electrolysis reactor, for being purified sewage by iron carbon filler a, being comprised: cylindrical shell 1, water inlet pipe 2, water distributor 3, inlet pipe 4 and inner circulating tube 5; Water inlet pipe 2 extend into the inside of cylindrical shell 1 by the sidewall of cylindrical shell 1, and is communicated with the water distributor 3 being located at cylindrical shell 1 inside, and the rising pipe of water distributor 3 is distributed in the bottom of cylindrical shell 1; The sidewall at cylindrical shell 1 top is provided with cylindrical shell water outlet 6; Inlet pipe 4 is located at the bottom of cylindrical shell 1, and the air outlet of inlet pipe 4 extend into the inside of cylindrical shell 1; At least one inner circulating tube 5 is vertically located at the inside of cylindrical shell 1, and every root inner circulating tube 5 extends to the bottom of cylindrical shell 1 by the top of cylindrical shell 1, and the bottom opening of every root inner circulating tube 5 is all positioned at directly over the air outlet of inlet pipe 4; The top of cylindrical shell 1 is provided with cylindrical shell air outlet 11; Iron carbon filler a fills in the inside of cylindrical shell 1, and the stacking bed extreme higher position of iron carbon filler a is lower than the open top of inner circulating tube 5;
Sewage flow in water distributor 3 via water inlet pipe 2, and is distributed in the iron carbon filler a of cylindrical shell 1 bottom by the rising pipe of water distributor 3; Under the promotion of follow-up sewage, sewage moves upward through the gap of iron carbon filler a, and with iron carbon filler a contact process in constantly purify, form water outlet after purification, then discharged by cylindrical shell water outlet 6;
Gas enters into the iron carbon filler a bottom cylindrical shell 1 via inlet pipe 4, forms the aeration bubbles moved upward; Aeration bubbles drives iron carbon filler a to be entered in inner circulating tube 5 by the bottom opening of inner circulating tube 5, and is discharged in the rear water outlet of purification by the open top of inner circulating tube 5; Aeration bubbles through water outlet after purification, and is discharged by cylindrical shell air outlet 11; And the iron carbon filler a discharged by the open top of inner circulating tube 5 enters into after purification after water outlet, continuous sedimentation, until fall back to the stacking bed of iron carbon filler a, thus defines the aeration cycle of iron carbon filler a.
Preferably, the top of cylindrical shell 1 is provided with current stabilization lid 7; The middle part of current stabilization lid 7 is vertically located in cylindrical shell air outlet 11; The bottom of current stabilization lid 7 is vertically provided with toroidal membrane 71; The open top of inner circulating tube 5 and cylindrical shell water outlet 6 separate by this toroidal membrane 71, and the bottom of this toroidal membrane 71 is lower than the open top of inner circulating tube 5.
Preferably, the part that cylindrical shell water outlet 6 is positioned at cylindrical shell 1 upwards extends, thus the effluent weir 61 that formation one is annular; The top of this effluent weir 61 is higher than the open top of inner circulating tube 5; After purification, water outlet overflows in effluent weir 61, then is discharged by cylindrical shell water outlet 6.
Preferably, the top sidewall of inner circulating tube 5 is provided with the Scrubbing apparatus 51 for cleaning iron carbon filler a surface.
Preferably, the bottom of every root rising pipe of water distributor 3 is equipped with multiple posticum 31.
Preferably, the bottom of cylindrical shell 1 is provided with the emptying flange 8 for being discharged by the iron carbon filler a in cylindrical shell 1.
Preferably, when inner circulating tube 5 is many, many inner circulating tubes 5 are distributed on the inside of cylindrical shell 1.
Preferably, the rising pipe of water distributor 3 is cross symmetrical in the bottom of cylindrical shell 1.
Preferably, water distributor 3 and inner circulating tube 5 are integral type structure; Inner circulating tube 5 passes vertically through water distributor 3 from top to bottom, and the delivery position of the bottom of the delivery position of the top of water distributor 3 and inner circulating tube 5 and water distributor 3 and inner circulating tube 5 all adopts encapsulation process.
The technical scheme provided as can be seen from above-mentioned the utility model, gas to be sent in the iron carbon filler a bottom cylindrical shell 1 by inlet pipe 4 by the internal-circulation type iron-carbon micro-electrolysis reactor that the utility model embodiment provides, form the aeration bubbles moved upward, and this aeration bubbles can drive iron carbon filler a through inner circulating tube 5, and after being discharged to purification in water outlet, be deposited to gradually again iron carbon filler a stacking bed on, thus form the aeration cycle of iron carbon filler a; Under the aeration internal recycle effect of this iron carbon filler a, passivation can not be there is and harden in iron filings, the gap of iron carbon filler a can not be blocked, iron-carbon micro-electrolysis reaction can be carried out by continous-stable, the stacking bed sewage purification ability of iron carbon filler a can not decline, thus this internal-circulation type iron-carbon micro-electrolysis reactor not only can be disposed of sewage continuous high-efficient, and energy consumption low, wear and tear little, simple to operate.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation of the internal-circulation type iron-carbon micro-electrolysis reactor that Fig. 1 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection domain of the present utility model.
Below internal-circulation type iron-carbon micro-electrolysis reactor provided by the utility model is described in detail.
As shown in Figure 1, a kind of internal-circulation type iron-carbon micro-electrolysis reactor, for being purified sewage by iron carbon filler a, its concrete structure comprises: cylindrical shell 1, water inlet pipe 2, water distributor 3, inlet pipe 4 and inner circulating tube 5; Water inlet pipe 2 extend into the inside of cylindrical shell 1 by the sidewall of cylindrical shell 1, and is communicated with the water distributor 3 being located at cylindrical shell 1 inside, and the rising pipe of water distributor 3 is distributed in the bottom of cylindrical shell 1; The sidewall at cylindrical shell 1 top is provided with cylindrical shell water outlet 6.Inlet pipe 4 is located at the bottom of cylindrical shell 1, and the air outlet of inlet pipe 4 extend into the inside of cylindrical shell 1; At least one inner circulating tube 5 is vertically located at the inside of cylindrical shell 1, and every root inner circulating tube 5 extends to the bottom of cylindrical shell 1 by the top of cylindrical shell 1, and the bottom opening of every root inner circulating tube 5 is all positioned at directly over the air outlet of inlet pipe 4; The top of cylindrical shell 1 is provided with cylindrical shell air outlet 11.Iron carbon filler a fills in the inside of cylindrical shell 1, and the stacking bed extreme higher position of iron carbon filler a is lower than the open top of inner circulating tube 5.
Particularly, the working process of this internal-circulation type iron-carbon micro-electrolysis reactor is as follows:
The operational process of A, water: sewage flow in water distributor 3 via water inlet pipe 2, and be distributed in the iron carbon filler a of cylindrical shell 1 bottom by the rising pipe of water distributor 3; Under the promotion of follow-up sewage, sewage moves upward through the gap of iron carbon filler a, and with iron carbon filler a contact process, sewage constantly purifies by iron-carbon micro-electrolysis reaction, forms water outlet after purification; After after purification, water outlet moves upward to cylindrical shell water outlet 6, discharged by cylindrical shell water outlet 6.
B, gas operational process: gas enters into the iron carbon filler a bottom cylindrical shell 1 via inlet pipe 4, form the aeration bubbles moved upward; Aeration bubbles drives iron carbon filler a to be entered in inner circulating tube 5 by the bottom opening of inner circulating tube 5, and is discharged in the rear water outlet of purification by the open top of inner circulating tube 5; Aeration bubbles through water outlet after purification, and is discharged by cylindrical shell air outlet 11; And the iron carbon filler a discharged by the open top of inner circulating tube 5 to enter into after purification after water outlet, continuous sedimentation (such as: iron carbon filler a is continuous sedimentation in the negative area b shown in Fig. 1), until fall back to the stacking bed of iron carbon filler a, thus define the aeration internal recycle of iron carbon filler a.Under the aeration internal recycle effect of iron carbon filler a, passivation can not be there is and harden in iron filings, the gap of iron carbon filler a can not be blocked, iron-carbon micro-electrolysis reaction can be carried out by continous-stable, the stacking bed sewage purification ability of iron carbon filler a can not decline, thus this internal-circulation type iron-carbon micro-electrolysis reactor can less energy-consumption, little abrasively realize continuous high-efficient ground sewage disposal.In addition, because the iron carbon filler a in this internal-circulation type iron-carbon micro-electrolysis reactor is aeration internal recycle, therefore after this internal-circulation type iron-carbon micro-electrolysis reactor runs for some time, iron filings consumption in cylindrical shell 1, only need supplement iron filings by cylindrical shell air outlet 11 to cylindrical shell 1 inside, again load without the need to dismounting, visible, this internal-circulation type iron-carbon micro-electrolysis reactor is simple to operate, time saving and energy saving.
Further, this internal-circulation type iron-carbon micro-electrolysis reactor can comprise following embodiment:
(1) top of cylindrical shell 1 is preferably provided with current stabilization lid 7; The middle part of current stabilization lid 7 is vertically located in cylindrical shell air outlet 11; The bottom of current stabilization lid 7 is vertically provided with toroidal membrane 71; The open top of inner circulating tube 5 and cylindrical shell water outlet 6 separate by this toroidal membrane 71, and the bottom of this toroidal membrane 71 is lower than the open top of inner circulating tube 5.When aeration bubbles drives iron carbon filler a to be discharged by the open top of inner circulating tube 5, after the purification of the top open part of inner circulating tube 5, water outlet can produce larger fluctuation, this toroidal membrane 71 can play good current stabilization effect, and effectively can stop that iron carbon filler a sputters cylindrical shell water outlet 6.
(2) part that cylindrical shell water outlet 6 is positioned at cylindrical shell 1 upwards extends, thus forms an annular effluent weir 61; The top of this effluent weir 61 is higher than the open top of inner circulating tube 5; After purification, water outlet overflows in effluent weir 61, then is discharged by cylindrical shell water outlet 6.This by overflowing to the mode that water is discharged by effluent weir 61, not only can ensure the stable of aquifer yield, and the water outlet of iron carbon filler a or not fully purification can be avoided to be discharged by cylindrical shell water outlet 6 under wave action.
(3) sidewall at the top of inner circulating tube 5 is preferably provided with the Scrubbing apparatus 51 for cleaning the surface of iron carbon filler a; Under the obstruct of toroidal membrane 71, the iron carbon filler a discharged by the open top of inner circulating tube 5 only can by the downward sedimentation of negative area b between toroidal membrane 71 and inner circulating tube 5, therefore the Scrubbing apparatus 51 be located on the sidewall of inner circulating tube 5 top effectively can clean the surface of the iron carbon filler a in sedimentation, and this can prevent iron filings surface from passivation occurring further.
(4) rising pipe of water distributor 3 is preferably cross symmetrical in cylindrical shell 1 bottom, and the bottom of every root rising pipe of water distributor 3 is preferably equipped with multiple posticum 31, and this can make inlet distribution more even, is conducive to sewage purification.
(5) bottom of cylindrical shell 1 is provided with the emptying flange 8 for being discharged by the iron carbon filler a in cylindrical shell 1.When this internal-circulation type iron-carbon micro-electrolysis reactor normally works, emptying flange 8 can be in closure state, and iron carbon filler a can not discharge from emptying flange 8; And at the end of the dirty water decontamination handles, only emptying flange 8 need be adjusted to open mode, the iron carbon filler a in cylindrical shell 1 just can discharge in cylindrical shell 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 cylindrical shell 1, and the air outlet of inlet pipe 4 also can be multiple, and the bottom opening of every root inner circulating tube 5 is each positioned at directly over the air outlet of an inlet pipe 4.
(7) water distributor 3 and inner circulating tube 5 are integral type structure; Inner circulating tube 5 passes vertically through water distributor 3 from top to bottom, and the delivery position of the bottom of the delivery position of the top of water distributor 3 and inner circulating tube 5 and water distributor 3 and inner circulating tube 5 all adopts encapsulation process.
(8) in iron carbon filler a, the volume ratio of iron and carbon is preferably 1:1, and this ratio can make iron-carbon micro-electrolysis reaction carry out more sustainedly and stably, is conducive to working with promoting this reactor continuous high-efficient.In actual applications, for different treatment sewages, can be routine according to the iron-carbon ratio of practical situation flexible aeration rate and iron carbon filler a.
As fully visible, the utility model embodiment not only energy consumption low, wear and tear little, simple to operate, and can dispose of sewage continuous high-efficient, therefore internal-circulation type iron-carbon micro-electrolysis reactor provided by the utility model can be widely used in various difficult degradation, high chroma, high density, high salinity industrial sewage preliminary cleaning process in.
In order to the technique effect more clearly showing technical scheme provided by the utility model and produce, below by specific embodiment, internal-circulation type iron-carbon micro-electrolysis reactor provided by the utility model is described in detail.
Embodiment one
The internal-circulation type iron-carbon micro-electrolysis reactor described in technique scheme is utilized to carry out preliminary cleaning process to the dye wastewater of configuration simulation and the dye wastewater of reality respectively, its concrete treating processes is as follows: first utilize sulfuric acid by the pH value of dye wastewater to 2.0 ~ 4.0, be then passed in internal-circulation type iron-carbon micro-electrolysis reactor provided by the utility model; Dye wastewater evenly spreads in the iron carbon filler a (volume ratio of iron and carbon is 1:1) of cylindrical shell 1 bottom through water distributor 3, and moves upward through the gap of iron carbon filler a; Iron carbon filler a is aeration internal recycle in this internal-circulation type iron-carbon micro-electrolysis reactor, processes after 1 ~ 2 hour, can complete the preliminary cleaning process to dye wastewater.Further, alkali can be added in the dye wastewater after preliminary cleaning process, then carry out follow-up biochemical treatment, thus just can realize the complete purifying treatment to dye wastewater.
Through measuring and calculating, after carrying out above-mentioned preliminary cleaning process to the dye wastewater of configuration simulation, the clearance of COD can reach 90.2%, and chroma removal rate can reach 86.9%, BOD
5the ratio of/COD improves 15 times; After carrying out above-mentioned preliminary cleaning process to the dye wastewater of reality, the clearance of COD can reach 73.5%, and chroma removal rate can reach 98.5%, BOD
5the ratio of/COD improves 23 times.
As fully visible, the utility model embodiment not only energy consumption low, wear and tear little, simple to operate, and can to dispose of sewage continuous high-efficient.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (9)
1. an internal-circulation type iron-carbon micro-electrolysis reactor, for being purified sewage by iron carbon filler (a), it is characterized in that, comprising: cylindrical shell (1), water inlet pipe (2), water distributor (3), inlet pipe (4) and inner circulating tube (5);
Water inlet pipe (2) extend into the inside of cylindrical shell (1) by the sidewall of cylindrical shell (1), and the water distributor (3) inner with being located at cylindrical shell (1) is communicated with, and the rising pipe of water distributor (3) is distributed in the bottom of cylindrical shell (1); The sidewall at cylindrical shell (1) top is provided with cylindrical shell water outlet (6);
Inlet pipe (4) is located at the bottom of cylindrical shell (1), and the air outlet of inlet pipe (4) extend into the inside of cylindrical shell (1); At least one inner circulating tube (5) is vertically located at the inside of cylindrical shell (1), and every root inner circulating tube (5) extends to the bottom of cylindrical shell (1) by the top of cylindrical shell (1), and the bottom opening of every root inner circulating tube (5) is all positioned at directly over the air outlet of inlet pipe (4); The top of cylindrical shell (1) is provided with cylindrical shell air outlet (11);
Iron carbon filler (a) fills in the inside of cylindrical shell (1), and the stacking bed extreme higher position of iron carbon filler (a) is lower than the open top of inner circulating tube (5).
2. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1, is characterized in that, the top of cylindrical shell (1) is provided with current stabilization lid (7); The middle part of current stabilization lid (7) is vertically located in cylindrical shell air outlet (11); The bottom of current stabilization lid (7) is vertically provided with toroidal membrane (71); The open top of inner circulating tube (5) and cylindrical shell water outlet (6) separate by this toroidal membrane (71), and the bottom of this toroidal membrane (71) is lower than the open top of inner circulating tube (5).
3. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, is characterized in that, the part that cylindrical shell water outlet (6) is positioned at cylindrical shell (1) upwards extends, thus the effluent weir (61) that formation one is annular; The top of this effluent weir (61) is higher than the open top of inner circulating tube (5).
4. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, it is characterized in that, the sidewall at the top of inner circulating tube (5) is provided with the Scrubbing apparatus (51) for cleaning the surface of iron carbon filler (a).
5. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, is characterized in that, the bottom of every root rising pipe of water distributor (3) is equipped with multiple posticum (31).
6. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, it is characterized in that, the bottom of cylindrical shell (1) is provided with the emptying flange (8) for being discharged by iron carbon filler (a) in cylindrical shell (1).
7. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, is characterized in that, when inner circulating tube (5) is for many, many inner circulating tubes (5) are distributed on the inside of cylindrical shell (1).
8. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, is characterized in that, the rising pipe of water distributor (3) is cross symmetrical in the bottom of cylindrical shell (1).
9. internal-circulation type iron-carbon micro-electrolysis reactor according to claim 1 and 2, is characterized in that, water distributor (3) and inner circulating tube (5) are integral type structure; Inner circulating tube (5) passes vertically through water distributor (3) from top to bottom, and the delivery position of the bottom of the delivery position of the top of water distributor (3) and inner circulating tube (5) and water distributor (3) and inner circulating tube (5) all adopts encapsulation process.
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| CN201520670884.1U CN204939044U (en) | 2015-09-01 | 2015-09-01 | A kind of internal-circulation type iron-carbon micro-electrolysis reactor |
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| CN201520670884.1U CN204939044U (en) | 2015-09-01 | 2015-09-01 | A kind of internal-circulation type iron-carbon micro-electrolysis reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036261A (en) * | 2015-09-01 | 2015-11-11 | 北京石油化工学院 | Internal-circulation type iron-carbon micro-electrolysis reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036261A (en) * | 2015-09-01 | 2015-11-11 | 北京石油化工学院 | Internal-circulation type iron-carbon micro-electrolysis reactor |
| CN105036261B (en) * | 2015-09-01 | 2017-06-06 | 北京石油化工学院 | A kind of internal-circulation type iron-carbon micro-electrolysis reactor |
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