CN203530061U - High-efficiency iron carbon-Fenton combined type reactor for pretreating high-concentration organic wastewater - Google Patents
High-efficiency iron carbon-Fenton combined type reactor for pretreating high-concentration organic wastewater Download PDFInfo
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- CN203530061U CN203530061U CN201320591102.6U CN201320591102U CN203530061U CN 203530061 U CN203530061 U CN 203530061U CN 201320591102 U CN201320591102 U CN 201320591102U CN 203530061 U CN203530061 U CN 203530061U
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Abstract
The utility model relates to a high-efficiency iron carbon-Fenton combined type reactor for pretreating high-concentration organic wastewater. The high-efficiency iron carbon-Fenton combined type reactor is characterized by comprising a pipeline mixer (1), and a first-stage movable iron carbon reaction bed (2) and a second-stage Fenton catalytic oxidation reactor (3) which are combined by sections, wherein the pipeline mixer (1) is used for conveying wastewater to the movable iron carbon reaction bed (2) communicated with the pipeline mixer (1) through a pipeline, and wastewater is discharged into the Fenton catalytic oxidation reactor (3) positioned at the upper part of the movable iron carbon reaction bed (2) through an up-flow type cyclone water distributor after being subjected to iron carbon micro-electrolysis reaction of the movable iron carbon reaction bed (2). The high-efficiency iron carbon-Fenton combined type reactor is capable of effectively treating high-concentration organic wastewater such as printing and dyeing wastewater, wastewater from chemical industry, pharmaceutical wastewater and tannery wastewater which is high in organic matters, high in chroma, high in ammonia nitrogen and the like. The operation cost is lowered. The high-efficiency iron carbon-Fenton combined type reactor is remarkable in effect.
Description
Technical field
The utility model relates to efficient iron carbon-Fenton combination type reactor, belongs to iron carbon-Fenton combination type reactor technical field of structures.
Background technology
Efficient iron carbon-Fenton combination type reactor is a kind of Fenton catalyzed oxidation technology that combines up-to-date iron-carbon micro-electrolysis reaction technology and the inside, advanced oxidation field, utilize the reaction principle of two kinds of technology, by combination, use to realize high density, difficult degradation, the poor organic waste water of biodegradability are carried out to effective pretreated device.
Iron carbon-Fenton combination type reactor, its main body is comprised of line mixer, movable iron carbon reaction bed, Fenton catalytic oxidizer, aeration agitation system, stirring system, inlet and outlet pipe lines system and robot control system(RCS).
Iron-carbon micro-electrolysis principle of work is as follows:
When iron and carbon are in acid waste water, due to the difference in Electrode Potential between iron and carbon, in waste water, can form numerous micro-galvanic cell.The iron that wherein current potential is low becomes anode, and the carbon that current potential is high becomes negative electrode, under acid aerobic condition, electrochemical reaction occurs, and its reaction process is as follows:
Anode (Fe): Fe-2e → Fe2+,
Negative electrode (C): 2H++2e → 2[H] → H2,
The Fe2+ of the status nascendi that anode produces enters second segment Fenton catalyst oxidation reactor and supplements Fe2+, negative electrode produces atom [H], and they have high chemically reactive, can change many organic structure and characteristics in waste water, can with many pollutent component generation redox reactions in waste water, make the effects such as organism generation chain rupture, open loop, make the material of some bio-refractory be transformed into easy to handle material, improve the biodegradability of waste water.There is reaction below in oxygenation:
O
2+ 4H
++ 4e → 2H
2o; O
2+ 2H
2o+4e → 4OH
-; 2Fe
2++ O
2+ 4H+ → 2H
2o+ Fe
3+fenton catalyzed oxidation principle of work is as follows:
The system that Fenton catalyzed oxidation is comprised of ferrous ion (Fe2+) and hydrogen peroxide (H2O2), also claim Fenton reagent, it can generate the hydroxyl radical free radical of strong oxidizing property, generates organic free radical and makes it structure deteriorate, final oxygenolysis in the aqueous solution with hardly degraded organic substance.
Fenton oxidation method can process that the high densitys such as nitrobenzene-containing, ABS, toxicity are large effectively, the waste water of the high-enriched organics of difficult degradation and for the decolouring of waste water, except stench.
Fenton's reaction is to take a series of free radical reactions that ferrous ion is catalyzer.Principal reaction is roughly as follows:
Fe2++H2O2==Fe3++OH-+HO·
Fe3++H2O2+OH-==Fe2++H2O+HO·
Fe3+ +H2O2==Fe2++H++HO2·
HO2+H2O2==H2O+O2↑+HO·
Fenton reagent is by above reaction, constantly produce HO(hydroxyl radical free radical, electrode potential 2.80EV, be only second to F2), make whole system there is strong oxidizing property, can be oxidized chlorobenzene, Benzyl Chloride, grease etc. and be difficult to by general oxygenant (chlorine, clorox, dioxide peroxide, ozone, the electrode potential of ozone only has 2.23EV) material of oxidation.
the technological deficiency that conventional iron carbon Fenton combined reactor exists
Existing combined reactor structure adopts opened type tank body form more, the outside pipe laying mixing tank of tank body, tank interior is perforation water distributor from the bottom to top, boring aeration pipe, filter, filter plate, iron-carbon micro-electrolysis filler, waste water is through line mixer, add acid, hydrogen peroxide, ferrous sulfate, after medicament fully mixes with waste water, enter tank body, even by perforation water distributor water distribution, by boring aeration pipe, be uniformly mixed, by filter, drain into top iron-carbon micro-electrolysis filler, in tank body, between iron and carbon, form difference in Electrode Potential, combine countless micro-galvanic cells, change many organic structure and characteristics in waste water, make organism generation chain rupture, open loop, hydrogen peroxide and ferrous salt produce hydroxyl radical free radical under sour environment simultaneously, to hardly degraded organic substance oxygenolysis by force.
The existing combined reactor of above structure has following technological deficiency:
Although 1, iron-carbon micro-electrolysis and Fenton's reaction are all dosing reactions under sour environment, but reach maximum removal efficiency, these two process need segmentations, often iron-carbon micro-electrolysis filler being located in Fenton reactor of conventional combination reactor, lump together, can only regulate PH in leading portion acid adding, due to iron-carbon micro-electrolysis reaction and the required pH value difference of Fenton's reaction, therefore be easy to cause removal efficiency low, control the high problem of difficulty.
2, traditional iron-carbon micro-electrolysis reactor, prop and filter plate are set up in employing, place iron carbon filler, because iron carbon filler is than great, general filler arranges thickness at 2-3m, if iron-carbon micro-electrolysis reactor runs into iron carbon filler after having moved of a specified duration, stops up, the situation that head loss is excessive, even if be provided with access hole, but due to dense extrusion and the situation that hardens, be difficult to clear up.
3, traditional combined reactor, iron carbon filler adopts iron powder and carbon dust, and work-ing life is short, consumes soon, and easily hardens, and goes out water suspension amount large.
Existing combined reactor exists above deficiency and defect are the technical problems that the utility model technology will solve.
Summary of the invention
The purpose of this utility model is to solve the weak point that above-mentioned prior art exists, and provides a kind of removal efficiency high, easy to operate, stable and reliable for performance lasting for the pretreated efficient iron carbon-Fenton combination type reactor of high concentrated organic wastewater.
The utility model is achieved through the following technical solutions:
A kind of for the pretreated efficient iron carbon-Fenton combination type reactor of high concentrated organic wastewater, its special character is to comprise line mixer 1, and one section of movable iron carbon reaction bed 2 and two sections of Fenton catalyst oxidation reactors 3 of segmentation combination, described line mixer 1 is as the mixing entrance of high concentrated organic wastewater, waste water is further transported to the movable iron carbon reaction bed 2 with its pipeline connection, waste water is via the iron-carbon micro-electrolysis reaction of movable iron carbon reaction bed 2, then by the dispatch of upflowing cyclone water distributor to the Fenton catalyst oxidation reactor 3 that is located thereon portion,
First high concentrated organic wastewater enters line mixer 1, on described line mixer 1, offer the dosing mouth 1-1 being connected with dosing pump, described line mixer 1 inside is provided with for composite waste and is advanced the fixedly screw-blade of one section of active iron carbon reaction bed.
The leading portion of described movable iron carbon reaction bed 2 be provided with the dosing pump interlock of line mixer, can Real-Time Monitoring pH value the aobvious pH of a hop count detect and count 2-1;
Described movable iron carbon reaction bed 2 is comprised of a plurality of movable iron carbon assembly 2-2, and what described movable iron carbon assembly 2-2 adopted is upper water intake mode, and its top is provided with handle, base plate is provided with through hole, and inside is filled with finished iron carbon micro-electrolysis filler;
The specification of described single-unit activity formula iron carbon assembly 2-2 is 700 * 1000 * 2000mm, and package shell adopts the high poly-anticorrosive board of PP to make, assembly bottom hole diameter of phi 20mm, and pitch of holes 15mm, void tower flow velocity is got 0.2-1m/min;
Waste water through iron-carbon micro-electrolysis reaction flows into the Fenton catalyst oxidation reactor 3 of two sections certainly through upflowing cyclone water distributor, described upflowing cyclone water distributor comprises the water distributor central tube 5 that is installed on water inlet pipe 4 places between one section of movable iron carbon reaction bed 2 and two sections of Fenton catalyst oxidation reactors 3, the top of described water distributor central tube 5 is provided with chemical feeding points 6, described water distributor central tube 5 bottoms and tangential installation of water inlet pipe 4 outlets, after can tangentially being flowed in the process that enters water distributor central tube through water inlet pipe 4, waste water forms eddy flow, the downward Fenton catalyst oxidation reactor 3 of water distribution to two section,
Described Fenton catalyst oxidation reactor 3 front ends are provided with the aobvious pH of two hop counts that can Real-Time Monitoring pH value and detect meter 3-1, intermediate lateral and be provided with perforation plate 7, longitudinally two traverse baffles 8, bottoms that whole reactor is divided into San Ge district be installed and be connected to boring aeration pipe 9.
The utility model has the feature of iron-carbon micro-electrolysis reactor and Fenton catalyst oxidation reactor concurrently, combination use to improve removal efficiency, effectively the high concentrated organic wastewater such as treatment of dyeing and printing, wastewater from chemical industry, pharmacy waste water, the contour organism of leather-making waste water, high chroma, high ammonia nitrogen.Iron-carbon micro-electrolysis reaction can supplement ferrous ion (Fe for Fenton catalyzed oxidation
2+), can save the required ferrous salt pharmaceutical quantities adding of Fenton's reaction, reduce running cost; To significantly improve the biodegradability of waste water, can effectively reduce the toxic action of toxic substance to microorganism in waste water, for favourable condition has been created in further biochemical treatment.The strong oxidation of organism by to(for) complexity such as difficult degradation, loop chain, macromole, open loop chain rupture, removal effect is obvious.
Accompanying drawing explanation
Fig. 1: the utility model structural representation;
The A-A sectional view of Fig. 2: Fig. 1;
The B-B sectional view of Fig. 3: Fig. 1.
Embodiment
Referring to accompanying drawing, provide embodiment of the present utility model, be used for formation of the present utility model to be further described.
The present embodiment a kind of for the pretreated efficient iron carbon-Fenton combination type reactor of high concentrated organic wastewater with reference to figure 1-3, comprise line mixer 1, and one section of movable iron carbon reaction bed 2 and two sections of Fenton catalyst oxidation reactors 3 of segmentation combination, described line mixer 1 is as the mixing entrance of high concentrated organic wastewater, waste water is further transported to the movable iron carbon reaction bed 2 with its pipeline connection, waste water is via the iron-carbon micro-electrolysis reaction of movable iron carbon reaction bed 2, then by the dispatch of upflowing cyclone water distributor to the Fenton catalyst oxidation reactor 3 that is located thereon portion, first high concentrated organic wastewater enters line mixer 1, on described line mixer 1, offer the dosing mouth 1-1 being connected with dosing pump, described line mixer 1 inside is provided with for composite waste and is advanced the fixedly screw-blade of one section of active iron carbon reaction bed.The leading portion of described movable iron carbon reaction bed 2 be provided with the dosing pump interlock of line mixer, can Real-Time Monitoring pH value the aobvious pH of a hop count detect and count 2-1, described movable iron carbon reaction bed 2 is comprised of a plurality of movable iron carbon assembly 2-2, and what described movable iron carbon assembly 2-2 adopted is upper water intake mode, and its top is provided with handle, base plate is provided with through hole, and inside is filled with finished iron carbon micro-electrolysis filler, the specification of described single-unit activity formula iron carbon assembly 2-2 is 700 * 1000 * 2000mm, and package shell adopts the high poly-anticorrosive board of PP to make, assembly bottom hole diameter of phi 20mm, and pitch of holes 15mm, void tower flow velocity is got 0.2-1m/min, waste water through iron-carbon micro-electrolysis reaction flows into the Fenton catalyst oxidation reactor 3 of two sections certainly through upflowing cyclone water distributor, described upflowing cyclone water distributor comprises the water distributor central tube 5 that is installed on water inlet pipe 4 places between one section of movable iron carbon reaction bed 2 and two sections of Fenton catalyst oxidation reactors 3, the top of described water distributor central tube 5 is provided with chemical feeding points 6, described water distributor central tube 5 bottoms and tangential installation of water inlet pipe 4 outlets, after can tangentially being flowed in the process that enters water distributor central tube through water inlet pipe 4, waste water forms eddy flow, the downward Fenton catalyst oxidation reactor 3 of water distribution to two section, described Fenton catalyst oxidation reactor 3 front ends are provided with the aobvious pH of two hop counts that can Real-Time Monitoring pH value and detect meter 3-1, intermediate lateral and be provided with perforation plate 7, longitudinally two traverse baffles 8, bottoms that whole reactor is divided into San Ge district be installed and be connected to boring aeration pipe 9.
First high concentrated organic wastewater enters line mixer 1, by the dosing mouth 1-1 arranging on line mixer 1, add acid, by a hop count, aobvious pH detects meter 2-1 regulating and controlling PH to 4 left and right, by line mixer 1 internal helicoid structure, mix, fully after reaction, enter one section of movable iron carbon reaction bed 2, through inner upper and lower baffling, fully contact with movable iron carbon assembly 2-2, by Galvanic interaction, make organism generation chain rupture, open loop, waste water gravity flow through iron-carbon micro-electrolysis reaction enters two sections of Fenton catalyst oxidation reactors 3, first enter upflowing cyclone water distributor, water inlet pipe 4 is tangentially installed with water distributor central tube 5, during water inlet, can form eddy flow, water distribution is to Fenton reactor bottom downwards, chemical feeding points 6 is arranged on water distributor central tube 5 tops simultaneously, during water inlet, add acid, by two hop counts, aobvious pH detects meter 3-1 regulating and controlling PH to 3 left and right, then add hydrogen peroxide, ferrous sulfate, with waste water together the downward process of eddy flow fully mix, waste water enter bottom after again to overflow, through San Duan baffling district hybrid reaction, bottom connects boring aeration pipe 9, fully be uniformly mixed, in the middle of reactor, increase perforation plate 7, can effectively guarantee waterflow stabilization, the generation of a large amount of bubbles simultaneously in the time of can effectively preventing Fenton's reaction, Fenton's reaction water outlet can enter subsequent treatment process.
the utility model, with respect to traditional reactor, has following difference:
1, in structure, adopt movable iron carbon reaction bed and Fenton catalyst oxidation reactor segmentation combination.
there is following characteristics:1) due to iron-carbon micro-electrolysis reactor only need to regulate waste water to PH in 4 left and right, and Fenton catalyzed oxidation need to regulate PH, add ferrous salt and hydrogen peroxide, two kinds of operation scheme differences, both separately can effectively be guaranteed to two stage removal efficiency reach maximization, and traditional often iron-carbon micro-electrolysis filler being located in Fenton reactor, it is large that difficulty is controlled in dosing, easily stops up micro-electrolysis stuffing, and removal efficiency is low.
2) segmentation combination is conducive to the problem that checks that operational process occurs, is convenient to adjust in time chemical feeding quantity or operation scheme.
2, movable iron carbon reaction bed adopts finished iron carbon micro-electrolysis filler.
there is following characteristics:1) adopt finished iron carbon micro-electrolysis filler, with respect to tradition, adopt the method for iron filings and carbon dust, more convenient operation, better effects if, stable work in work, reliable, lasting.
2) micro-electrolysis stuffing using adopts special sintering technique, forms iron carbon and contains framework form, and iron skeleton disperses to intersect with carbochain mutually; Add multiple catalytic elements, form microporous framework, the metal alloy with high potential gradient merges catalyzer and adopts high temperature micropore activating technology to produce, have that iron charcoal is integrated, fusion catalyzer, micropore framework formula alloy structure, specific surface area are large, light specific gravity, active strong, current density is large, make water use efficiency high.Can overcome that conventional iron carbon micro-electrolysis filler is easy to harden, passivation, channeling be serious, had a strong impact on the situation for the treatment of effect.
3, iron carbon reaction bed adopts movable installation.
there is following characteristics:1) iron carbon reaction bed is comprised of a plurality of assemblies, single component specification 700 * 1000 * 2000mm, package shell adopts the high poly-anticorrosive board of the thick PP of 6mm to make, top arranges handle, assembly base plate is opened Φ 20mm hole, spacing 15mm, and component internal is loaded novel finished iron carbon micro-electrolysis filler, assembly water intake mode adopts upper water inlet, and single component void tower flow velocity is got 0.2-1m/min; According to uninterrupted different choice component count.
Traditional iron-carbon micro-electrolysis reactor, prop is set up in employing, place iron carbon filler, because iron carbon filler is than great, general filler arranges thickness at 2-3m, if iron-carbon micro-electrolysis reactor runs into iron carbon filler after having moved of a specified duration, stops up, the situation that head loss is excessive, even if be provided with access hole, but due to dense extrusion and the situation that hardens, be difficult to clear up.By the movable installation of assembly, avoided this problem completely, and maintenance is convenient, directly takes out, water distribution is comprehensive simultaneously, avoids the situation at dead angle to occur, improves reaction efficiency.
4, two-part PH controls.
there is following characteristics:1) before movable iron carbon reaction bed, line mixer is set, acid adding regulates PH, and reaction bed leading portion is installed digital display PH meter and dosing pump interlock, Real-Time Monitoring pH value.
2) in Fenton catalyst oxidation reactor upflowing cyclone water distributor acid adding, regulate PH, district's water outlet arranges digital display PH meter, with dosing pump interlock, Real-Time Monitoring pH value.
Traditional reactor can only regulate PH in leading portion acid adding, due to iron-carbon micro-electrolysis reaction and the required pH value difference of Fenton's reaction, is therefore easy to cause removal efficiency low, controls the high problem of difficulty.
5, Fenton catalyst oxidation reactor upflowing eddy flow water inlet+baffling water distribution
there is following characteristics:1) Fenton catalyst oxidation reactor first district's one side arranges upflowing cyclone water distributor, water inlet tangentially enters, be eddy flow state and enter bottom, chemical feeding points is arranged on water-in, in the process of eddy flow water distribution, can make ferrous salt and hydrogen peroxide, acid fully effectively mix like this, then by district's two district's aeration agitation, the reaction times is controlled at 1.5-2h, Fenton's reaction is fully effectively carried out, reach maximum removal efficiency.Traditional way adopts bottom water inlet more, by filter, carries out water distribution.
2) Fenton catalyst oxidation reactor Duan Fensange district, adopts vertical folding to spread the mode of water, and every district runner arranges perforation plate, is beneficial to chemical reaction, and runner rise/fall flow rate control is in 1m/s left and right.
Claims (7)
1. one kind for the pretreated efficient iron carbon-Fenton combination type reactor of high concentrated organic wastewater, it is characterized in that comprising line mixer (1), and one section of movable iron carbon reaction bed (2) and two sections of Fenton catalyst oxidation reactors (3) of segmentation combination, described line mixer (1) is transported to the movable iron carbon reaction bed (2) with its pipeline connection by waste water, waste water is via the iron-carbon micro-electrolysis reaction of movable iron carbon reaction bed (2), then by the dispatch of upflowing cyclone water distributor to the Fenton catalyst oxidation reactor (3) that is located thereon portion.
2. a kind of for the pretreated efficient iron carbon-Fenton combination type reactor of high concentrated organic wastewater as claimed in claim 1, it is characterized in that offering on described line mixer (1) dosing mouth (1-1) being connected with dosing pump, described line mixer (1) inside is provided with for composite waste and is advanced the fixedly screw-blade of one section of active iron carbon reaction bed.
3. a kind of for the pretreated efficient iron carbon-Fenton combination type reactor of high concentrated organic wastewater as claimed in claim 1, the leading portion that it is characterized in that described movable iron carbon reaction bed (2) be provided with the dosing pump interlock of line mixer, can Real-Time Monitoring pH value the aobvious pH of a hop count detect and count (2-1).
4. a kind of for the pretreated efficient iron carbon-Fenton combination type reactor of high concentrated organic wastewater as claimed in claim 1, it is characterized in that described movable iron carbon reaction bed (2) is comprised of a plurality of movable iron carbon assemblies (2-2), what described movable iron carbon assembly (2-2) adopted is upper water intake mode, its top is provided with handle, base plate is provided with through hole, and inside is filled with finished iron carbon micro-electrolysis filler.
5. a kind of for the pretreated efficient iron carbon-Fenton combination type reactor of high concentrated organic wastewater as claimed in claim 4, the specification that it is characterized in that described single-unit activity formula iron carbon assembly (2-2) is 700 * 1000 * 2000mm, package shell adopts the high poly-anticorrosive board of PP to make, assembly bottom hole diameter of phi 20mm, pitch of holes 15mm, void tower flow velocity is got 0.2-1m/min.
6. a kind of for the pretreated efficient iron carbon-Fenton combination type reactor of high concentrated organic wastewater as claimed in claim 1, it is characterized in that described upflowing cyclone water distributor comprises is installed on the water distributor central tube (5) that the water inlet pipe (4) between one section of movable iron carbon reaction bed (2) and two sections of Fenton catalyst oxidation reactors (3) is located, the top of described water distributor central tube (5) is provided with chemical feeding points (6), and described water distributor central tube (5) bottom and water inlet pipe (4) outlet are tangentially installed.
7. a kind of for the pretreated efficient iron carbon-Fenton combination type reactor of high concentrated organic wastewater as claimed in claim 1, it is characterized in that described Fenton catalyst oxidation reactor (3) front end be provided with can Real-Time Monitoring pH value the aobvious pH of two hop counts detect meter (3-1), intermediate lateral and be provided with perforation plate (7), longitudinally two traverse baffles (8), bottom that whole reactor is divided into San Ge district be installed and be connected to boring aeration pipe (9).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539293A (en) * | 2013-09-25 | 2014-01-29 | 安徽省绿巨人环境技术有限公司 | High-efficiency iron carbon-Fenton combined reactor for high-concentration organic wastewater pretreatment |
| CN108585304A (en) * | 2018-05-04 | 2018-09-28 | 山东默锐环境产业股份有限公司 | A kind of BDP pretreatment method for wastewater |
-
2013
- 2013-09-25 CN CN201320591102.6U patent/CN203530061U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539293A (en) * | 2013-09-25 | 2014-01-29 | 安徽省绿巨人环境技术有限公司 | High-efficiency iron carbon-Fenton combined reactor for high-concentration organic wastewater pretreatment |
| CN108585304A (en) * | 2018-05-04 | 2018-09-28 | 山东默锐环境产业股份有限公司 | A kind of BDP pretreatment method for wastewater |
| CN108585304B (en) * | 2018-05-04 | 2021-12-03 | 山东默锐环境产业股份有限公司 | BDP wastewater pretreatment method |
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