CN103755006A - Integrated heterogeneous baffled Fenton continuous reactor - Google Patents
Integrated heterogeneous baffled Fenton continuous reactor Download PDFInfo
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- CN103755006A CN103755006A CN201410023030.4A CN201410023030A CN103755006A CN 103755006 A CN103755006 A CN 103755006A CN 201410023030 A CN201410023030 A CN 201410023030A CN 103755006 A CN103755006 A CN 103755006A
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Abstract
The invention relates to an integrated heterogeneous baffled Fenton continuous reactor. According to the integrated heterogeneous baffled Fenton continuous reactor, a baffled Fenton reactor with a natural flow pushing structure is applied, multipoint, respective and continuous agent dosing is adopted to carry out chemical reaction, and an inert carrier is introduced. Compared with the prior art, the reactor has the advantages of simple structure, high agent use ratio, lowered system energy consumption, small sulfate radical use amount and the like, and the adverse effect on a subsequent anaerobic digestion system can be reduced.
Description
Technical field
The invention belongs to environmental engineering and engineering of water treatment field, especially relate to the strong oxidizing treater of integrated traverse baffle Fenton, the pre-treatment or the advanced treatment that can be used for wastewater treatment, this reactor can be realized continuous operation, is convenient to and the supporting the use of other system.
Background technology
1894, British H.J.H.Fenton found to adopt Fe
2+/ H
2o
2system can be oxidized gas chromatography.In honor of he is called Fenton reagent by the combination of ferrous salt and hydrogen peroxide to descendant, and it can remove the hardly degraded organic substance that traditional wastewater processing technology cannot be removed by the efficient oxidation, its essence is Fe
2+catalyzing and decomposing H
2o
2, the hydroxyl radical free radical (OH) of generation strong oxidizing property, OH can make its degraded with most of organism effects, the larger molecular organics in waste water is degraded into small-molecule substance, the effect of the follow-up biochemical treatment of lifting waste water.Fenton reagent has had a lot of engineering example when the high concentration hard-degraded organic waste waters such as treatment of dyeing and printing, refinery water, paper waste, percolate, and has obtained good effect.Fenton energy complete oxidation pollutent, is converted into harmless compound, as carbonic acid gas, water and minerals etc.
But homogeneous phase Fenton system also has weak point, main manifestations is, H
2o
2utilization ratio low and produce a large amount of iron containing sludge, make processing cost high and cause secondary pollution.Most of research at present all concentrates on other householder method of interpolation and becomes homogeneous catalysis is heterogeneous catalysis aspect:
The method of auxiliary Fenton system, as CN1270979 proposes ultrasonic wave to be used for promoting Fenton method to process the method and apparatus of high concentrated organic wastewater, but the method need to increase ultrasonic generator, and investment and running cost all increase, and technology and economy are poor.CN102941091 proposes a kind of light that is specially adapted for and helps nanocatalyst α-Fe that in the feedwater of Fenton oxidation removal, reuse water, environmental hormone class is polluted
2o
3.CN1179889C proposes electrochemistry to introduce Fenton system, utilizes dull and stereotyped return-flow type electrolysis mode to improve Fenton effect, but needs additional electrolytic reaction pond, and investment and running cost all will increase.
Research Fe
2+, Fe
3+and the mixture of iron is attached on certain inert support, as with quartz sand etc. as carrier, Fe
2+, Fe
3+at quartz sand surface overlay film, form heterophase Fenton.Its deficiency is, in order to reach sufficient mixing of materials, form fluidized-bed reactor, need by a certain proportion of effluent recycling with improve upflow liquid velocity, or in air lift washed-out sand mode to obtain high-quality water outlet.And vast scale backflow will increase energy consumption, washed-out sand also can reduce Fe
2+, Fe
3+the amount of adhering at quartz sand surface.
The 3rd class is to prepare solid heterogeneous loading type molysite Fenton catalyzer.As CN102167435, use acid, alkali to soak as the porous media material of catalyst support material (as slag etc.), remove objectionable constituent, then wash with water to neutrality, dry.Be placed in 10%FeSO
4solution and hydration MnO
2suspension liquid soaks 24h, isolates raffinate, then to 300-680 ℃, insulation 2h, naturally cooling.CN102010083A, proposes a kind of four phase catalyzed oxidation degree of depth method of wastewater treatment, and it has introduced Cu-Ti-Fe/Al
2o
3the preparation of ceramic honeycomb catalyst.These class methods are by iron ion immobilization, can avoid removing the needed chemical reagent of de-iron and human cost after degradation of organic substances, but method for preparing catalyst are loaded down with trivial details, and operability and economy are not good enough.
This case is the deficiency for existing Fenton reactor and technique, Fenton reactor configuration and technique material therefor and reagent have been carried out to suitable adjustment,, use traverse baffle Fenton reactor as new configuration, take be different from conventional sand carrier compared with fillers such as light ceramics as novel vector, iron containing sludge refluxes to realize molysite and recycles, the novel all-in-one heterogeneous Fenton flow reactor of few sulfate process.
Summary of the invention
Object of the present invention is exactly defect and the deficiency in order to overcome existing Fenton reactor and technique, and a kind of efficient high-level oxidation technology that can move is continuously provided, and less reagent consumption and sludge creation amount.
Object of the present invention can be achieved through the following technical solutions:
Integrated heterogeneous traverse baffle Fenton flow reactor, is characterized in that, this reactor comprises:
Traverse baffle Fenton reactor, this traverse baffle Fenton reactor becomes 5 reaction tanks by baffle for separating, be respectively: acid adding pond, add ferrous pond, Fenton main reaction pond, add alkali Chi HejiaPAMChi, wherein in acid adding pond, be provided with acid adding device, add to arrange in ferrous pond and add setting ferrous device, Fenton main reaction pond in and add H
2o
2device, add and adder-subtractor is set in alkali pond, adds setting PAM pond in and add flocculation agent PAM device; Described acid adding device, add ferrous device, add H
2o
2device, adder-subtractor and add flocculation agent PAM device and be equipped with the flow deflector that is connected to each reaction tank, it is the flap of 120 ° that each flow deflector is angle; Described Fenton main reaction pond, add bottom, He JiaPAM pond, alkali pond and be equipped with blast aeration mouth, each blast aeration mouth all connects Aeration fan;
Settling tank, this settling tank connects traverse baffle Fenton reactor, settling tank iron containing sludge part press filtration outward transport, part is back to acid adding pond by sludge reflux pump and recycles.
Described each flow deflector is fixed on traverse baffle Fenton reactor head, its bottom is provided with gap with traverse baffle Fenton reactor, each dividing plate is fixed on traverse baffle Fenton reactor bottom, its top and traverse baffle Fenton reactor head are provided with gap, between each flow deflector and adjacent separator, form reaction tank, pending waste water is flowed through after each reaction tank reacts successively, enters settling tank precipitation.
Described acid adding device comprises acid solution storage tank, and connects pipeline and the flow deflector in acid solution storage tank and acid adding pond; Wherein the acid solution in acid solution storage tank is sulfuric acid, the mixing acid of nitric acid or nitric acid and sulfuric acid.
The described ferrous device that adds comprises ferrous storage tank, and connects ferrous storage tank and the pipeline and the flow deflector that add ferrous pond, and the mixture of ferrous sulfate, Iron nitrate or Iron nitrate and ferrous sulfate is wherein housed in ferrous storage tank.
In described Fenton main reaction pond, add mineral filler, described mineral filler comprises haydite, waste active carbon or plastic waste, as inert support.Crystallization and the Fe of the alkali formula iron protoxide (FeOOH) that Fenton oxidation produces
3+itself is attached to above inert support.Fe
3+meeting and H
2o
2reaction, regenerates Fe
2+, its chemical equation is: Fe
3++ H
2o
2→ Fe
2++ OOH+H
+, because the Fe that has FeOOH and be retained down
3+, can greatly reduce ferrous add-on, to reduce the iron containing sludge of running cost and generation.
In described Fenton main reaction pond, the upflow velocity of liquid level is controlled in 10-60m/h, main by the cross-sectional area of pond body with highly carry out parameter control.Because filler light weight used, more easily reaches fluidized state.
Described Aeration fan is roots blower, by Aeration fan to Fenton main reaction pond, add He JiaPAM pond, alkali pond aeration, utilize oxygen improve Fenton treatment effect and save added amount of chemical, and play the fluid effect that stirs and improve filler.
In the reagent adding in described traverse baffle Fenton reactor, H
2o
2with Fe
2+mass ratio be 10-60: 1, in pending waste water, the content of COD is 0.1～2g/L.
Alkali lye is inputted by adder-subtractor in the described alkali pond that adds, and regulates the pH to 9-10 that adds liquid in alkali pond, with termination reaction; Described adding in PAM pond is negatively charged ion PAM by adding flocculation agent PAM device interpolation flocculation agent, and dosage is 2-5mg/L.The alkali lye that adder-subtractor input adds in alkali pond comprises NaOH.
The iron containing sludge that described sludge pump produces settling tank is back to acid adding pond, and in acid adding pond, low pH dissolves molysite, and recycle iron is as catalyzer.
Compared with prior art, the present invention has the following advantages.
(1) the present invention is different from adding continuously medicament and carrying out chemical reaction of conventional Fenton reactor;
(2) multiple spot adds respectively medicament and can fully improve treatment effect and medicament service efficiency, and the introducing of inert support can reduce adding and the generation of iron containing sludge of ferrous salt;
(3) the natural plug-flow configuration of traverse baffle Fenton reactor, can reduce system operation energy consumption, by run by gravity, realizes being uniformly distributed of material;
(4) for the follow-up system that has anaerobic digestion, this invention that few sulfate radical is used, minimizing that can minimum degree is because of the negative impact to subsequent anaerobic digestion of the sulfate radical that uses conventional Fenton reagent and introduce;
(5) Fenton reactor aeration can play the object that stirs and improve oxidation effectiveness;
(6) traverse baffle Fenton flow reactor is simple in structure, can reduce reagent consumption and produce less iron content mud amount.
Accompanying drawing explanation
The schematic diagram of the integrated heterogeneous traverse baffle Fenton flow reactor of Fig. 1.
In figure: 1, acid adding device, 2, add ferrous device, 3, add H
2o
2device, 4, adder-subtractor, 5, add flocculation agent PAM device, 6, traverse baffle Fenton reactor, 7, acid adding pond, 8, add ferrous pond, 9, Fenton main reaction pond, 10, add alkali pond, 11, add PAM pond, 12, settling tank, 13, blower fan, 14, sludge reflux pump.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is implemented as prerequisite take technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, the integrated heterogeneous traverse baffle Fenton flow reactor of the present invention comprises: traverse baffle Fenton reactor 6 and settling tank 12,
Wherein, traverse baffle Fenton reactor 6: this traverse baffle Fenton reactor 6 becomes 5 reaction tanks by baffle for separating, be respectively: acid adding pond 7, add ferrous pond 8, Fenton main reaction pond 9, add alkali pond 10 and add PAM pond 11, wherein in acid adding pond 7, be provided with acid adding device 1, add that the interior setting in ferrous pond 8 adds ferrous device 2, the 9 interior settings of Fenton main reaction pond add H
2o
2device 3, add alkali pond 10 and interior adder-subtractor 4 is set, adds the interior setting in PAM pond 11 and add flocculation agent PAM device 5; Described acid adding device 1, add ferrous device 2, add H
2o
2device 3, adder-subtractor 4 and add flocculation agent PAM device 5 and be equipped with the flow deflector that is connected to each reaction tank, it is the flap of 120 ° that each flow deflector is angle; Described Fenton main reaction pond 9, add alkali pond 10 and add 11 bottoms, PAM pond and be equipped with blast aeration mouth, each blast aeration mouth all connects Aeration fan 13; Described acid adding device 1 comprises acid solution storage tank, and connects pipeline and the flow deflector in acid solution storage tank and acid adding pond 7; Wherein the acid solution in acid solution storage tank can be sulfuric acid, if there is anaerobic technique after Fenton, adds the mixing acid of nitric acid or nitric acid and sulfuric acid, to control sulfate radical addition, reduces anaerobism reversal of cure.The described ferrous device 2 that adds comprises ferrous storage tank, and connects ferrous storage tank and the pipeline and the flow deflector that add ferrous pond 8, wherein in ferrous storage tank, ferrous sulfate is housed.If there is anaerobic technique after Fenton, add the mixture of Iron nitrate or Iron nitrate and ferrous sulfate.To control sulfate radical addition, reduce the inhibition of desulfurication to anaerobic methane bacterium.The described interior interpolation mineral filler in Fenton main reaction pond 9, described mineral filler comprises haydite, waste active carbon or plastic waste, as inert support.The crystallization of the alkali formula iron protoxide (FeOOH) that Fenton oxidation produces and by Fe
3+itself is attached to above inert support.Fe
3+meeting and H
2o
2reaction, regenerates Fe
2+, its chemical equation is: Fe
3++ H
2o
2→ Fe
2++ .OOH+H
+, because the Fe that has FeOOH and be retained down
3+, can greatly reduce ferrous add-on, to reduce the iron containing sludge of running cost and generation; The upflow velocity of described Fenton main reaction pond 9 interior liquid levels is controlled in 10-60m/h, main by the cross-sectional area of pond body with highly carry out parameter control, because filler light weight used more easily reaches fluidized state.Described Aeration fan 13 is roots blower, by Aeration fan 13 to Fenton main reaction pond 9, add alkali pond 10 and add PAM pond 11 aerations, utilize oxygen improve Fenton treatment effect and save added amount of chemical, and play the fluid effect that stirs and improve filler.In described interior the added reagent of traverse baffle Fenton reactor 6, H
2o
2with Fe
2+mass ratio be 10-60: 1, in pending waste water, the content of COD is 0.1～2wt%.Alkali lye is inputted by adder-subtractor 4 in the described alkali pond 10 that adds, and regulates and adds the pH to 9-10 of alkali pond 10 interior liquid, take termination reaction: described adding in PAM pond 11 added flocculation agent as negatively charged ion PAM by adding flocculation agent PAM device 5, and dosage is 2-5mg/L.
Settling tank 12: this settling tank 12 connects traverse baffle Fenton reactor 6, settling tank 12 iron containing sludge part press filtration outward transports, part is back to acid adding pond 7 by sludge reflux pump 14 and recycles, and the interior low pH in acid adding pond 7 dissolves molysite, and recycle iron is as catalyzer.
Each flow deflector in traverse baffle Fenton reactor 6 each reaction tanks is fixed on traverse baffle Fenton reactor 6 tops, its bottom is provided with gap with traverse baffle Fenton reactor 6, each dividing plate is fixed on traverse baffle Fenton reactor 6 bottoms, its top and traverse baffle Fenton reactor 6 tops are provided with gap, between each flow deflector and adjacent separator, form reaction tank, pending waste water is flowed through after each reaction tank reacts successively, enter settling tank precipitation, settling tank 12 iron containing sludge part press filtration outward transports, part is back to acid adding pond 7 by sludge reflux pump 14 and recycles.
Embodiment 1
Integrated traverse baffle Fenton successive reaction apparatus, certain paper-making effluent that processing COD is 190mg/L is through the water outlet of biochemical treatment, and this device comprises following processing step:
1. after the pulping and paper-making biochemical treatment that needs to process, waste water enters acid adding pond with pump pump.Open acid adding device 1, sulfuric acid is added in to acid adding pond 7 front ends, regulate pH to be controlled at 3.0 left and right, with adding ferrous device 2, to adding ferrous pond 8, add ferrous sulfate 60mg/L, at Fenton main reaction pond 9 entrance ends, pass through H
2o
2throwing device 3 adds 300mg/L H
2o
2, the interior reaction 30min in Fenton main reaction pond 9.After reacting completely, enter and add alkali pond 10, with adder-subtractor 4, add NaOH and regulate pH to 9.0, after add after PAM flocculation adding PAM pond 11 leading portions, flow into settling tank 12.
2. the iron content deposition of settling tank 12 bottoms, by sludge pump 14, is back to acid adding pond 7.Simultaneously Aeration fan 13 continuously to Fenton main reaction pond 9, add alkali pond 10 and add aeration in 11 ponds, PAM pond.
3. in order to reduce added PAM to adhering to the impact of inert support and being beneficial to recycling of iron, only added the negatively charged ion PAM of 2mg/L.
4. the COD of settling tank 12 water outlets is reduced to below 90mg/L.
Embodiment 2
Integrated traverse baffle Fenton successive reaction apparatus, certain wastewater from chemical industry that processing COD is 520mg/L is through the water outlet of biochemical treatment, and this device comprises following processing step:
1. need the wastewater from chemical industry of processing with pump pump, to enter acid adding pond after biochemistry.Open acid adding device 1, sulfuric acid is added in to acid adding pond 7 front ends, regulate pH to be controlled at 3.0 left and right, with adding ferrous device 2, to adding ferrous pond 8, add ferrous sulfate 150mg/L, at Fenton main reaction pond 9 entrance ends, pass through H
2o
2throwing device 3 adds 850mg/LH
2o
2, the interior reaction 45min in Fenton main reaction pond 9.After reacting completely, enter and add alkali pond 10, with adder-subtractor 4, add NaOH and regulate pH to 9.0, after add after PAM flocculation adding PAM pond 11 leading portions, flow into settling tank 12.
2. the iron content deposition of settling tank 12 bottoms, by sludge pump 14, is back to acid adding pond 7.Simultaneously Aeration fan 13 continuously to Fenton main reaction pond 9, add alkali pond 10 and add aeration in 11 ponds, PAM pond.
3. in order to reduce added PAM to carrier loaded impact and to be beneficial to recycling of iron, only added the negatively charged ion PAM of 3mg/L.
4. the COD of settling tank 12 water outlets is reduced to below 120mg/L.
Embodiment 3
Integrated traverse baffle Fenton successive reaction apparatus, certain plam oil factory production waste water that processing COD is 950mg/L is through the water outlet of biochemical treatment, and this device comprises following processing step:
1. need the excess sludge of processing to enter acid adding pond with pump pump.Open acid adding device 1, sulfuric acid is added in to acid adding pond 7 front ends, regulate pH to be controlled at 3.0 left and right, with adding ferrous device 2, to adding ferrous pond 8, add ferrous sulfate 250mg/L, at Fenton main reaction pond 9 entrance ends, pass through H
2o
2throwing device 3 adds 2125mg/LH
2o
2, the interior reaction 60min in Fenton main reaction pond 9.After reacting completely, enter and add alkali pond 10, with adder-subtractor 4, add NaOH and regulate pH to 9.0, after add after PAM flocculation adding PAM pond 11 leading portions, flow into settling tank 12.
2. the iron content deposition of settling tank 12 bottoms, by sludge pump 14, is back to acid adding pond 7.Simultaneously Aeration fan 13 continuously to Fenton main reaction pond 9, add alkali pond 10 and add aeration in 11 ponds, PAM pond.
3. in order to reduce added PAM to carrier loaded impact and to be beneficial to recycling of iron, only added the negatively charged ion PAM of 4mg/L.
4. the COD of settling tank 12 water outlets is reduced to below 150mg/L, color removal 95%.
Embodiment 4
Integrated traverse baffle Fenton successive reaction apparatus, certain printing and dyeing mill's factory effluent that processing COD is 102mg/L is through the water outlet of biochemical treatment, and this device comprises following processing step:
1. need the excess sludge of processing to enter acid adding pond with pump pump.Open acid adding device 1, sulfuric acid is added in to acid adding pond 7 front ends, regulate pH to be controlled at 3.0 left and right, with adding ferrous device 2, to adding ferrous pond 8, add ferrous sulfate, at Fenton main reaction pond 9 entrance ends, pass through H
2o
2throwing device 3 adds H
2o
2, make H
2o
2with Fe
2+mass ratio be 10: 1, the interior reaction 25min in Fenton main reaction pond 9.After reacting completely, enter and add alkali pond 10, with adder-subtractor 4, add NaOH and regulate pH to 9.0, after add after PAM flocculation adding PAM pond 11 leading portions, flow into settling tank 12.
2. the iron content deposition of settling tank 12 bottoms, by sludge pump 14, is back to acid adding pond 7.Simultaneously Aeration fan 13 continuously to Fenton main reaction pond 9, add alkali pond 10 and add aeration in 11 ponds, PAM pond.
3. in order to reduce added PAM to carrier loaded impact and to be beneficial to recycling of iron, only added the negatively charged ion PAM of 2mg/L.
4. the COD of settling tank 12 water outlets is reduced to below 60mg/L, color removal 95%.
Embodiment 5
Integrated traverse baffle Fenton successive reaction apparatus, certain chemical plant factory effluent that processing COD is 1835mg/L is through the water outlet of biochemical treatment, and this device comprises following processing step:
1. need the excess sludge of processing to enter acid adding pond with pump pump.Open acid adding device 1, sulfuric acid is added in to acid adding pond 7 front ends, regulate pH to be controlled at 3.0 left and right, with adding ferrous device 2, to adding ferrous pond 8, add ferrous sulfate, at Fenton main reaction pond 9 entrance ends, pass through H
2o
2throwing device 3 adds H
2o
2, make H
2o
2with Fe
2+mass ratio be 60: 1, the interior reaction 60min in Fenton main reaction pond 9.After reacting completely, enter and add alkali pond 10, with adder-subtractor 4, add NaOH and regulate pH to 10, after add after PAM flocculation adding PAM pond 11 leading portions, flow into settling tank 12.
2. the iron content deposition of settling tank 12 bottoms, by sludge pump 14, is back to acid adding pond 7.Simultaneously Aeration fan 13 continuously to Fenton main reaction pond 9, add alkali pond 10 and add aeration in 11 ponds, PAM pond.
3. in order to reduce added PAM to carrier loaded impact and to be beneficial to recycling of iron, only added the negatively charged ion PAM of 5mg/L.
4. the COD of settling tank 12 water outlets is reduced to below 150mg/L, color removal 90%.
Claims (10)
1. integrated heterogeneous traverse baffle Fenton flow reactor, is characterized in that, this reactor comprises:
Traverse baffle Fenton reactor (6), this traverse baffle Fenton reactor (6) becomes 5 reaction tanks by baffle for separating, be respectively: acid adding pond (7), add ferrous pond (8), Fenton main reaction pond (9), add alkali pond (10) and add PAM pond (11), are wherein provided with acid adding device (1) in acid adding pond (7), add to arrange to add in ferrous device (2), Fenton main reaction pond (9) in ferrous pond (8) and arrange and add H
2o
2device (3), add and adder-subtractor (4) is set in alkali pond (10), adds in PAM pond (11) and arrange and add flocculation agent PAM device (5); Described acid adding device (1), add ferrous device (2), add H
2o
2device (3), adder-subtractor (4) and add flocculation agent PAM device (5) and be equipped with the flow deflector that is connected to each reaction tank, it is the flap of 120 ° that each flow deflector is angle; Described Fenton main reaction pond (9), add alkali pond (10) and add bottom, PAM pond (11) and be equipped with blast aeration mouth, each blast aeration mouth all connects Aeration fan (13); Settling tank (12), this settling tank (12) connects traverse baffle Fenton reactor (6), settling tank (12) iron containing sludge part press filtration outward transport, part is back to acid adding pond (7) by sludge reflux pump (14) and recycles.
2. integrated heterogeneous traverse baffle Fenton flow reactor according to claim 1, it is characterized in that, described each flow deflector is fixed on traverse baffle Fenton reactor (6) top, its bottom is provided with gap with traverse baffle Fenton reactor (6), each dividing plate is fixed on traverse baffle Fenton reactor (6) bottom, its top and traverse baffle Fenton reactor (6) top are provided with gap, between each flow deflector and adjacent separator, form reaction tank, pending waste water is flowed through after each reaction tank reacts successively, enters settling tank precipitation.
3. integrated heterogeneous traverse baffle Fenton flow reactor according to claim 1, is characterized in that, described acid adding device (1) comprises acid solution storage tank, and connects pipeline and the flow deflector of acid solution storage tank and acid adding pond (7); Wherein the acid solution in acid solution storage tank is sulfuric acid, the mixing acid of nitric acid or nitric acid and sulfuric acid.
4. integrated heterogeneous traverse baffle Fenton flow reactor according to claim 1, it is characterized in that, the described ferrous device (2) that adds comprises ferrous storage tank, and connect ferrous storage tank and the pipeline and the flow deflector that add ferrous pond (8), the mixture of ferrous sulfate, Iron nitrate or Iron nitrate and ferrous sulfate is wherein housed in ferrous storage tank.
5. integrated heterogeneous traverse baffle Fenton flow reactor according to claim 1, it is characterized in that, in described Fenton main reaction pond (9), add mineral filler, described mineral filler comprises haydite, waste active carbon or plastic waste, as inert support.
6. integrated heterogeneous traverse baffle Fenton flow reactor according to claim 1, it is characterized in that, the upflow velocity of the described interior liquid level in Fenton main reaction pond (9) is controlled in 10-60m/h, main by the cross-sectional area of pond body with highly carry out parameter control.
7. integrated heterogeneous traverse baffle Fenton flow reactor according to claim 1, it is characterized in that, described Aeration fan (13) is roots blower, by Aeration fan (13) to Fenton main reaction pond (9), add alkali pond (10) and add PAM pond (11) aeration, utilize oxygen improve Fenton treatment effect and save added amount of chemical, and play the fluid effect that stirs and improve filler.
8. integrated heterogeneous traverse baffle Fenton flow reactor according to claim 1, is characterized in that, in the reagent adding in described traverse baffle Fenton reactor (6), and H
2o
2with Fe
2+mass ratio be 10-60: 1, in pending waste water, the content of COD is 0.1～2g/L.
9. integrated heterogeneous traverse baffle Fenton flow reactor according to claim 1, it is characterized in that, described adds alkali pond (10) by adder-subtractor (4) input alkali lye, regulates the pH to 9-10 that adds the interior liquid in alkali pond (10), with termination reaction; Described adding in PAM pond (11) is negatively charged ion PAM by adding flocculation agent PAM device (5) interpolation flocculation agent, and dosage is 2-5mg/L.
10. integrated heterogeneous traverse baffle Fenton flow reactor according to claim 1, it is characterized in that, the iron containing sludge that described sludge reflux pump (14) produces settling tank is back to acid adding pond (7), in acid adding pond (7), low pH dissolves molysite, and recycle iron is as catalyzer.
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