CN109179630A - A kind of ozonation aerated formula electricity Fenton fluidized bed - Google Patents
A kind of ozonation aerated formula electricity Fenton fluidized bed Download PDFInfo
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- CN109179630A CN109179630A CN201811333305.9A CN201811333305A CN109179630A CN 109179630 A CN109179630 A CN 109179630A CN 201811333305 A CN201811333305 A CN 201811333305A CN 109179630 A CN109179630 A CN 109179630A
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- Prior art keywords
- fluidized bed
- tank body
- fenton
- ferrous sulfate
- hydrogen peroxide
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- 230000005611 electricity Effects 0.000 title claims abstract description 31
- 238000006385 ozonation reaction Methods 0.000 title claims abstract description 24
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000010865 sewage Substances 0.000 claims abstract description 42
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000012028 Fenton's reagent Substances 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 18
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 17
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 120
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 61
- 239000011790 ferrous sulphate Substances 0.000 claims description 61
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 61
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 55
- 239000003814 drug Substances 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 23
- 239000000945 filler Substances 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 17
- 238000010992 reflux Methods 0.000 claims description 17
- 229910001882 dioxygen Inorganic materials 0.000 claims description 16
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 14
- 238000005273 aeration Methods 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 11
- 239000003792 electrolyte Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 5
- 235000011152 sodium sulphate Nutrition 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 2
- -1 hydroxide radicals Chemical class 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 14
- 229910001448 ferrous ion Inorganic materials 0.000 abstract description 13
- 239000004568 cement Substances 0.000 abstract description 7
- 238000005189 flocculation Methods 0.000 abstract description 6
- 230000016615 flocculation Effects 0.000 abstract description 6
- 150000001491 aromatic compounds Chemical class 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 5
- 239000005416 organic matter Substances 0.000 abstract description 5
- 238000007667 floating Methods 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 description 23
- 230000003647 oxidation Effects 0.000 description 22
- 239000000243 solution Substances 0.000 description 13
- 230000006872 improvement Effects 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 9
- 230000015556 catabolic process Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000006731 degradation reaction Methods 0.000 description 8
- 238000005243 fluidization Methods 0.000 description 5
- 230000003138 coordinated effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000035568 catharsis Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000010338 mechanical breakdown Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000003519 ventilatory effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/465—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electroflotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention relates to technical field of sewage, more particularly to a kind of ozonation aerated formula electricity Fenton fluidized bed, including fluidized bed tank body, split-phase jet stream doser and three-dimensional electric Fenton system are provided in fluidized bed tank body, the water distributor of input sewage is provided in fluidized bed tank body, split-phase jet stream doser conveying Fenton reagent enters in fluidized bed tank body to be mixed with sewage, and fluidized bed tank base, which is provided with, produces ozoniferous ozone pretreatment tank.The technical solution by it is ozonation aerated can be with degraded macromolecular organic matter；The hydroxide radicals attack small organic molecule that Fenton reagent generates simultaneously, effectively reduces ozone and Fenton reagent dosage；Three-dimensional electricity Fenton system also can produce electric floating, electric flocculation effect, can further induce and generate hydroxyl radical free radical and ferrous ion, avoid iron ion flocculation at iron cement sedimentation；Ozonation, Fenton fluidized bed, electric Fenton system are combined, the removal effect of unsaturated compounds and aromatic compound in sewage is improved.
Description
Technical field
The present invention relates to technical field of sewage, and in particular to a kind of ozonation aerated formula electricity Fenton fluidized bed.
Background technique
At present in sewage disposal technology, after industrial wastewater biological treatment, residual organic substances are generally difficult to biodegrade, right
Mainly high-level oxidation technology is used to remove in the hardly degraded organic substance of these low concentrations.Industrial widely used height at present
Grade oxidation technology is Fenton oxidation and the relevant high-level oxidation technology of ozone oxidation.
Simple ozone oxidation has selectivity, the processing to some unsaturated compounds and aromatic compound in sewage
Effect is preferable, but poor to organic matters treatment effects such as some small molecule fatty acid, it is difficult to decompose organic matter permineralization.
Meanwhile ozone oxidation generally uses oxygen source ozone generator to obtain higher ozone concentration, since ozone is difficult to completely instead
It answers, tail gas still has certain density ozone after processing, also needs further to handle tail gas, causes the wave of oxygen and ozone
Take.And prepare storage ozone higher cost, industrial application higher cost.
Fenton oxidation technology is relatively common at present light Fenton, electric Fenton and Fenton fluidized bed, and Fenton fluidized bed is with it
Operating cost bottom, equipment is simply by industrial extensive use, but since it still has the generation of iron cement to lead in operation
Post processing cost is caused to increase；And although light Fenton greatly reduces iron cement yield, but its treatment effeciency is low；And electric Fenton is set
Standby investment cost and operating cost is very high.
Electro-fenton process is generated using electrochemical process, and as the constant source of Fenton reagent, the two is stood after generating
It acts on and generates the hydroxyl radical free radical with high activity, organic matter is made to be degraded, essence is exactly in electrolytic process
Directly generate Fenton reagent.Compared with traditional Fenton process, electro-fenton process has the advantages that its uniqueness is not required to or need to only be added small amount
Medicament is learned, processing cost can be greatly lowered, treatment process cleaning will not generate secondary pollution to water quality, and equipment is relatively simple
Single, the parameter that electrolytic process need to control only has electric current and voltage, it is easy to accomplish automatically controls.Electro-fenton process hydroxyl-removal free radical
Outside oxidation, there are also anodic oxidation, the adjoint catharsis such as Electro Sorb, so treatment effeciency is higher than traditional Fenton process, accounts for
Ground area is small, process cycle is short, condition requirement is not harsh, is easy to combine with other methods, provides for the comprehensive treatment of waste water
One effective way.But, there is also free radical low yield, rate of contaminant degradation to be not thorough slowly with mineralising for electric Fenton technology
The problems such as.For this purpose, how to improve to existing Fenton oxidation technology, the coordinated dirt of one kind of multiple method for oxidation is designed
Water treatment facilities is of great significance to avoid deficiency existing for single method for oxidation.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of ozonation aerated formula electricity Fenton fluidized bed, which combines
Unsaturated compounds in sewage and aromatic compound are removed in depth in Ozone oxidation method.
To achieve the above object, the embodiment of the invention provides a kind of ozonation aerated formula electricity Fenton fluidized beds, including fluidisation
Bed tank body is provided with split-phase jet stream doser and three-dimensional electric Fenton system, setting in the fluidized bed tank body in fluidized bed tank body
There is the water distributor of input sewage, the split-phase jet stream doser conveying Fenton reagent enters in fluidized bed tank body to be mixed with sewage,
The fluidized bed tank base, which is provided with, produces ozoniferous ozone pretreatment tank.
As an improvement of the above technical solution, ozone pretreatment pot bottom is provided with aeration plate, on the aeration plate
It is connected with a nanometer homogeneous generator, holds air pump and ozone generator, the ozone that the ozone generator generates is flowed according to gas
Sequence successively after holding air pump, nanometer homogeneous generator and aeration plate, enters eventually into ozone pretreatment tank.
As an improvement of the above technical solution, it is provided between the ozone pretreatment tank and fluidized bed tank body for micro-nano ruler
The sieve that very little ozone bubbles and sewage pass through.
As an improvement of the above technical solution, the water distributor is set to fluidized bed tank base, sets on the water distributor
It is equipped with the cloth (operating) water nozzle close to sieve.
As an improvement of the above technical solution, it is provided at least one on the split-phase jet stream doser and is directed toward fluidized bed tank
The mixing dosing jet stream arm in internal portion is provided on the split-phase jet stream doser and the hydrogen peroxide that mixes dosing jet stream arm and be connected to
Runner and ferrous sulfate runner.
As an improvement of the above technical solution, the dioxygen water flow passage and hydrogen peroxide medicament preparing pool piping connection, it is described
Dioxygen water flow passage is disposed with hydrogen peroxide dosing metering pump, hydrogen peroxide according to fluid flow direction with hydrogen peroxide medicament preparing pool
Adding medicine control valve, hydrogen peroxide chemicals dosing plant, hydrogen peroxide dosing return pipe and hydrogen peroxide flow back into liquid pump；The ferrous sulfate runner
With ferrous sulfate medicament preparing pool piping connection, according to fluid between the ferrous sulfate runner and ferrous sulfate medicament preparing pool
Flow direction is disposed with ferrous sulfate dosing metering pump, ferrous sulfate Adding medicine control valve, ferrous sulfate chemicals dosing plant, sulfuric acid
Ferrous dosing return pipe and ferrous sulfate flow back into liquid pump.
As an improvement of the above technical solution, reflux weir plate, the dioxygen are provided on the upside of the fluidized bed tank interior
The reflux weir plate side of fluidized bed tank interior, reflux are protruded into the one end for flowing back into liquid pump far from hydrogen peroxide on water dosing return pipe
Sewage in weir plate is back to hydrogen peroxide by hydrogen peroxide dosing return pipe and flows back into liquid pump；The ferrous sulfate dosing reflux
The reflux weir plate side of fluidized bed tank interior, the reflux weir plate are protruded into the one end for flowing back into liquid pump far from ferrous sulfate on pipe
Interior sewage is back to ferrous sulfate by ferrous sulfate dosing return pipe and flows back into liquid pump.
As an improvement of the above technical solution, filler sieve plate, the three-dimensional electric Fenton are provided in the fluidized bed tank body
System is located above filler sieve plate, and the three-dimensional electric Fenton system includes electrode, anode, cathode and granule electrode, the split-phase
Jet stream doser and ozone pretreatment tank are located on filler sieve plate away from the side of three-dimensional electric Fenton system.
As an improvement of the above technical solution, the three-dimensional electric Fenton system further includes electrolyte inlet, the electrolysis
Sodium sulphate feed liquor pond and electrolyte liquid feeding pump are connected on liquid inlet.
As an improvement of the above technical solution, strainer, the strainer top are provided on the upside of the three-dimensional electric Fenton system
It is provided with water outlet weir plate, is provided with the outlet pipe for extending to water outlet weir plate side on the outside of the fluidized bed tank body.
Above-mentioned Fenton fluidized bed plant has the advantage that
(1) by it is ozonation aerated can be with degraded macromolecular organic matter, while ozone degradation tank is placed in Fenton fluidized bed lower end,
Extra ozone gas can enter fluidized bed tank body by sieve, and ozone gas can be with during carrying out oxidation reaction
A large amount of suspended matters are taken away, provide good environment, the hydroxide radicals attack small molecule that Fenton reagent generates for Fenton's reaction
Organic matter effectively reduces ozone and Fenton reagent dosage, and Ozonation is combined with Fenton fluidized bed, improves in sewage
The removal effect of unsaturated compounds and aromatic compound；
(2) the jet mixing mode of the water distributor of Fenton fluidized bed and split-phase jet stream doser makes entire fluidized bed tank body
Interior medicament mixing efficiency greatly promotes, and the rapid mixing between multi-fluid may be implemented, filler carrier fluidization efficiency is high, fluidized bed
Without dead angle, reaction is sufficiently rapid for fluidization regions in tank body, in split-phase jet stream doser, pressurized ferrous sulfate solution and dioxygen
Aqueous solution high speed enters in mixing dosing jet stream arm, according to the working principle of Venturi tube, in ferrous sulfate high-speed jet beam
Surrounding quickly forms negative static pressure area, to generate suction-operated, at this point, dioxygen water liquid is drawn into mixing chamber, sulfuric acid is sub-
Dioxygen water liquid is broken into small micel by iron high-velocity fluid, and then makes the small micel of hydrogen peroxide and ferrous sulfate high-velocity fluid
It is sufficiently mixed, moment generates hydroxyl radical free radical and sprays from nozzle, and jet beam once again stirs the liquid in fluidized bed tank body
It mixes, forms turbulent flow in tank, realize the fast reaction of hydroxyl radical free radical and sewage；
(3) fluidized bed tank body internal upper part is provided with three-dimensional electric Fenton system, using electric Fenton principle degradation COD, saves medicine
Agent additional amount consumes residual ozone and iron ion using the three-diemsnional electrode in three-dimensional electric Fenton system at the same time, while three-dimensional
Electric Fenton system also can produce electric floating, electric flocculation effect, can further induce and generate hydroxyl radical free radical and ferrous ion, sub-
Iron ion is combined into Fenton reagent with hydrogen peroxide again and participates in fluidized reaction, avoids iron ion flocculation at iron cement sedimentation, with ozone
Oxidation and Fenton fluidized bed coordinated, greatly reduce iron cement in fluidized bed tank body；
(4) water distributor not only increases water distribution evening ratio, while also functioning to and constantly smashing extra ozone, so that extra
Ozone oxidation tail gas can also take away a large amount of suspended matters in the further reactive absorption of fluidized bed, tiny oxidized tail gas；
(5) whole system is ingenious in design, and structure cooperates, a variety of method for oxidation coordinateds, and sewage treating efficiency is high,
Without dead angle in entire whipping process, reaction is sufficiently rapid, and the degree that homogenizes is high, and whole pipeline is rationally distributed, and mechanical breakdown is hidden
Suffer from less, long service life is easy to maintain, has saved production cost, wide market.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of ozonation aerated formula electricity Fenton fluidized bed in the embodiment of the present invention.
In figure: 1- ozone pre-processes tank, 2- fluidized bed tank body, 3- split-phase jet stream doser, 4- water distributor, the three-dimensional electricity sweet smell of 5-
System, 6- hydrogen peroxide chemicals dosing plant, 7- ferrous sulfate chemicals dosing plant, 11- ozone generator, 12- hold air pump, and 13- nanometer equal
Matter generator, 14- aeration plate, 15- sieve, 21- filler sieve plate, 22- water outlet weir plate, 23- reflux weir plate, 24- exhaust valve, 25-
Outlet pipe, 26- blowdown valve, 27- sewage pipe, 31- dioxygen water flow passage, 32- ferrous sulfate runner, 33- mixing dosing jet stream arm,
34- hydrogen peroxide flows back into liquid pump, and 35- ferrous sulfate flows back into liquid pump, 36- hydrogen peroxide dosing return pipe, and 37- ferrous sulfate adds
Medicine return pipe, 41- water distributor runner, 42- cloth (operating) water nozzle, 43- sewage liquid feeding pump, 44- liquid feed valve, 45- inlet tube, 51- electricity
Pole, 52- anode, 53- cathode, 54- granule electrode, 55- electrolyte inlet, 56- electrolyte liquid feeding pump, 57- sodium sulphate feed liquor
Pond, 58- strainer, 61- hydrogen peroxide Adding medicine control valve, 62- hydrogen peroxide dosing metering pump, 63- hydrogen peroxide medicament preparing pool, 71- sulphur
Sour ferrous iron Adding medicine control valve, 72- ferrous sulfate dosing metering pump, 73- ferrous sulfate medicament preparing pool.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific embodiment, those skilled in the art can be by this specification institute
The content of exposure is understood other advantages and efficacy of the present invention easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, it should all still fall in disclosed technology contents and obtain the model that can cover
In enclosing.Meanwhile in this specification cited such as "inner", "outside", "upper", "lower" term, be merely convenient to the bright of narration
, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology contents without essence
Under, when being also considered as the enforceable scope of the present invention.
In the description of following embodiments unless specifically defined or limited otherwise, the terms such as term " setting ", " connection "
It shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, or is integral；It can be machinery
Connection, can also can be the connection inside two elements or the interaction of two elements indirectly connected through an intermediary
Relationship, unless otherwise restricted clearly.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
As shown in Figure 1, present embodiments providing a kind of ozonation aerated formula electricity Fenton fluidized bed, including fluidized bed tank body 2, flow
Change and be provided with split-phase jet stream doser 3 and three-dimensional electric Fenton system 5 in bed tank body 2, is provided with input sewage in fluidized bed tank body 2
Water distributor 4, split-phase jet stream doser 3 conveys Fenton reagent and enters in fluidized bed tank body 2 to be mixed with sewage, fluidized bed tank body 2
Bottom, which is provided with, produces ozoniferous ozone pretreatment tank 1.
Multiple cloth (operating) water nozzles 42 are provided on water distributor 4, water distributor 4 further includes sewage liquid feeding pump 43, inlet tube 45, feed liquor
Valve 44 and water distributor runner 41, wherein cloth (operating) water nozzle 42 is arranged on water distributor runner 41, and the number of cloth (operating) water nozzle 42 can have
It is multiple.Sewage is input in fluidized bed tank body 2 to after boosting by water distributor runner 41 by sewage liquid feeding pump 43.
Split-phase jet stream doser 3 conveys Fenton reagent and enters in fluidized bed tank body 2 to be mixed with sewage, Fenton reagent it is main
Group is divided into the system with strong oxidizing property of hydrogen peroxide (hydrogen peroxide) and ferrous ion composition, wherein hydrogen peroxide and ferrous ion
It can be added separately in fluidized bed tank body 2, be then added to stream after can also being pre-mixed in split-phase jet stream doser 3
Change bed tank body 2.The present embodiment is then added to fluidized bed after being pre-mixed in split-phase jet stream doser 3 with hydrogen peroxide and ferrous ion
It describes in detail in tank body 2.
At least one mixing dosing jet stream arm 33 being directed toward inside fluidized bed tank body 2 is provided on split-phase jet stream doser 3,
The dioxygen water flow passage 31 being connected to mixing dosing jet stream arm 33 and ferrous sulfate runner 32 are provided on split-phase jet stream doser 3,
The ferrous ion that the hydrogen peroxide and ferrous sulfate runner 32 that dioxygen water flow passage 31 conveys convey is in the position of mixing dosing jet stream arm 33
Mixing is set, mixing dosing jet stream arm 33 can eject mixed ferrous ion and hydrogen peroxide, produce its continuous filler carrier
Raw fluidization is then stirred continuously by flow field effect so that liquid mixes more uniform in fluidized bed tank body 2.
In above scheme, hydrogen peroxide and ferrous ion can be in the mixing dosing jet stream arms 33 of split-phase jet stream doser 3
It is mixed into Fenton reagent rapidly, and generates hydroxyl radical free radical, the medicament then mixed is added to rapidly the stream of Fenton fluidized bed
Change inside bed tank body 2, after contacting with filler carrier, the hydroxyl radical free radical for generating reaction effectively attacks rapidly COD, drops COD
Solution efficiency greatly promotes.Hydrogen peroxide can be penetrated from ferrous ion by the mixing dosing of different split-phase jet stream dosers 3 simultaneously
The ejection of arm 33 is flowed, after hydrogen peroxide and ferrous ion meet in fluidized bed tank body 2, then generates hydroxyl radical free radical, split-phase is penetrated at this time
It is multiple for flowing the number of doser 3.
Further, dioxygen water flow passage 31 and 63 piping connection of hydrogen peroxide medicament preparing pool, dioxygen water flow passage 31 and dioxygen
Hydrogen peroxide dosing metering pump 62, hydrogen peroxide Adding medicine control are disposed with according to fluid flow direction between water medicament preparing pool 63
Valve 61, hydrogen peroxide chemicals dosing plant 6, hydrogen peroxide dosing return pipe 36 and hydrogen peroxide flow back into liquid pump 34；Ferrous sulfate runner 32 with
73 piping connection of ferrous sulfate medicament preparing pool, according to fluid between ferrous sulfate runner 32 and ferrous sulfate medicament preparing pool 73
Flow direction is disposed with ferrous sulfate dosing metering pump 72, ferrous sulfate Adding medicine control valve 71, ferrous sulfate chemicals dosing plant
7, ferrous sulfate dosing return pipe 37 and ferrous sulfate flow back into liquid pump 35.
The configuration that hydrogen peroxide is carried out first in hydrogen peroxide medicament preparing pool 63, then passes through hydrogen peroxide dosing metering pump 62
The accurate control for carrying out medicament additional amount carries out hydrogen peroxide by hydrogen peroxide Adding medicine control valve 61 and hydrogen peroxide chemicals dosing plant 6
Operation is added, hydrogen peroxide flows back into liquid pump 34 by hydrogen peroxide dosing return pipe 36, hydrogen peroxide and dioxygen water flow passage 31 enters
Mix dosing jet stream arm 33.The configuration that ferrous sulfate is carried out in ferrous sulfate medicament preparing pool 73, then passes through ferrous sulfate
Dosing metering pump 72 carries out the accurate control of medicament additional amount, passes through ferrous sulfate Adding medicine control valve 71 and ferrous sulfate dosing
Device 7 carries out the addition operation of ferrous sulfate, and ferrous sulfate passes through ferrous sulfate dosing return pipe 37, ferrous sulfate reflux liquid inlet
Pump 35 and ferrous sulfate runner 32 enter in mixing dosing jet stream arm 33, after ferrous sulfate is pre-mixed with hydrogen peroxide, then into
Enter into fluidized bed tank body 2.
In above scheme, 2 upper inside of fluidized bed tank body is provided with reflux weir plate 23, remote on hydrogen peroxide dosing return pipe 36
23 side of reflux weir plate inside fluidized bed tank body 2 is protruded into from one end that hydrogen peroxide flows back into liquid pump 34, is flowed back in weir plate 23
Sewage is back to hydrogen peroxide by hydrogen peroxide dosing return pipe 36 and flows back into liquid pump 34；It is remote on ferrous sulfate dosing return pipe 37
23 side of reflux weir plate inside fluidized bed tank body 2 is protruded into from one end that ferrous sulfate flows back into liquid pump 35, is flowed back in weir plate 23
Sewage be back to ferrous sulfate by ferrous sulfate dosing return pipe 37 and flow back into liquid pump 35.By the way that hydrogen peroxide dosing is returned
One end of flow tube 36 and ferrous sulfate dosing return pipe 37 extends to reflux 23 side of weir plate, can be by the dirt at the weir plate 23 that flows back
Water is recycled to 2 lower section of fluidized bed tank body by split-phase jet stream doser 3, improves each region fluid effect in fluidized bed tank body 2
Uniformity.
Ozone pretreatment 1 bottom of tank is provided with aeration plate 14, and a nanometer homogeneous generator 13 is connected on aeration plate 14, holds gas
Pump 12 and ozone generator 11, the ozone that ozone generator 11 generates is according to gas sequence of flow successively by holding air pump 12, receiving
After meter Jun Zhi generator 13 and aeration plate 14, enter eventually into ozone pretreatment tank 1, ozone pre-processes tank 1 and fluidized bed tank
The sieve 15 passed through for micro-nano size ozone bubbles and sewage is provided between body 2, sieve 15 can pass through sewage and micron order
Or nanoscale bubble, but filler cannot be avoided to enter in ozone pretreatment tank 1 by filler.It is pre-processed by ozone
Tank 1 is ozonation aerated in the progress of 2 bottom of fluidized bed tank body, carries out ozone Oxidation Treatment to the sewage in fluidized bed tank body 2, at this time may be used
To adjust the PH of sewage between 3~6, ozone dosage is 100mg/L~400mg/L, and the ozone oxidation residence time can be
2min~20min.
Further, water distributor 4 is set to 2 bottom of fluidized bed tank body, and the cloth (operating) water nozzle 42 on water distributor 4 is close or refers to
To sieve 15.There are two the effects of cloth (operating) water nozzle 42: first, it can be by the sewage that cloth (operating) water nozzle 42 sprays in fluidized bed tank body
Flow-disturbing effect is formed on 2 bottoms, generates impact flow field upwards, prevents filler from helping to improve fluid effect in bottom settlings；The
Two, the sewage that cloth (operating) water nozzle 42 sprays washes away sieve 15, prevents sieve 15 from blocking, and cloth (operating) water nozzle 42 can be using text
Throat tubular construction in mound.
On the basis of above scheme, it is provided with filler sieve plate 21 in fluidized bed tank body 2, is provided with above filler sieve plate 21
Three-dimensional electricity Fenton system 5, three-dimensional electricity Fenton system 5 includes electrode 51, anode 52, cathode 53 and granule electrode 54, split-phase jet stream
Doser 3 and ozone pretreatment tank 1 are located on filler sieve plate 21 away from the side of three-dimensional electric Fenton system 5.Filler sieve plate 21
Effect is stopped to filler, and filler is avoided to enter the region of three-dimensional electric Fenton system 5.Anode 52 can use snakelike
The anode of reticular structure, the anode of this structure can increase the contact area with solution, and then improve anode electrolysis rate；Cathode
53 use open column shape cathode, guarantee being equidistant for anode and cathode, electrolytic efficiency greatly improves；Granule electrode 54 is located at anode 52
Region between cathode 53, compared with traditional plate and stick electrode, granular electrode surface area increases granule electrode 54
Add, and the spacing of particle is small, it is possible to increase mass transfer velocity improves current efficiency.In order to improve electrolytic efficiency, anode 52 and cathode 53
Between also filled up iron filings, form 3 D stereo electrode space inside three-dimensional electricity Fenton system 5, hydroxyl radical free radical can be accelerated
Generation quantity and formation speed.Three-dimensional electricity Fenton system 5 further includes electrolyte inlet 55, is connected on electrolyte inlet 55
Sodium sulphate feed liquor pond 57 and electrolyte liquid feeding pump 56 accommodate electrolyte Na in sodium sulphate feed liquor pond 572SO4。
In three-dimensional electricity Fenton system 5, electrode 51 is flooded by waste water completely, and electrode 51 can pass through external power controling box
It carries out electric current and voltage is adjusted, by current control in 3A~5A, voltage 10V~20V, corresponding electric current in sewage disposal process
Density is 2mA/cm2~10mA/cm2, conduction time 0.5h~1h, anode 52 can be supported using iron, such as can use iron plate
Or anode 52 is made in the pole plate containing ferro element.Cathode 53 can fill the stainless (steel) wire of carbon using inside, wherein the stainless (steel) wire
Can be a variety of mesh numbers, stainless (steel) wire material selection can use but be not limited to 0Cr18Ni9,0Cr19Ni10,
The materials such as 0Cr25Ni20 and 0Cr17Ni12Mo2.
In three-dimensional 5 course of work of electricity Fenton system, the liquid environment in fluidized bed tank body 2 includes to pre-process tank from ozone
When oxygen after ozone and the ozone decomposition floated at 1, ozone and oxygen are advanced at the cathode 53 of three-dimensional electric Fenton system 5,
It reacts in cathode 53, induction generates H2O2And hydroxyl radical free radical, hydrogen peroxide can be generated further with solution ferrous ions
Fendon reaction.
Three-dimensional electricity Fenton system 5 is different from generic electrochemical device, and the electric Fenton system 5 of three-dimensional in this programme embodiment is not
Hydrogen peroxide and Fe must be added2+, hydrogen peroxide and Fe2+It is suitable to be generated, need to be only powered when handling waste water and adjusted by electrolysis
PH value, such as can control pH value 3~4, so that it may to the sweet smell Jing Guo ozone Oxidation Treatment and 3 region of split-phase jet stream doser
Organic wastewater with difficult degradation thereby carries out further degradation treatment after fluidization treatment of pausing.
In above scheme, when the three-dimensional electric Fenton system 5 of suspended particle clogging, can by regulating water flow and ventilatory capacity,
The suspended matter blocked using water flow and airflow scouring, solves the problems, such as blocking, to make the current efficiency of three-dimensional electric Fenton system 5
Restore normal.
Three-dimensional electricity Fenton system 5 saves the dosage of medicament using electric Fenton principle degradation COD；Anode is utilized at the same time
52, the three-diemsnional electrode consumption residual ozone and iron ion that cathode 53, granule electrode 54 form, while three-dimensional electric Fenton system 5
It can produce electric floating, electric flocculation effect.Can further induce and generate hydroxyl radical free radical and ferrous ion, ferrous ion again with
Hydrogen peroxide is combined into Fenton reagent and participates in fluidized reaction, avoids iron ion flocculation at iron cement sedimentation, with ozone oxidation and Fenton stream
Change bed coordinated, greatly reduces iron cement in fluidized bed tank body 2.
It is provided with strainer 58 on the upside of three-dimensional electricity Fenton system 5, water outlet weir plate 22, water outlet weir plate are provided with above strainer 58
22 position is corresponding with the reflux position of weir plate 23, is provided on the outside of fluidized bed tank body 2 and extends to going out for 22 side of water outlet weir plate
Water pipe 25.Exhaust valve 24 is provided at the top of fluidized bed tank body 2, residual gas in fluidized bed tank body 2 can be discharged for exhaust valve 24.Stream
Change 2 bottom of bed tank body and is provided with sewage pipe 27 and blowdown valve 26, it can be by 2 bottom deposit of fluidized bed tank body by sewage pipe 27
Impurity discharge.
The ozonation aerated formula Fenton fluidized bed utilizes the macromolecule organic degradation capability of ozone brilliance, is occurred using ozone
Ozone is squeezed into ozone pretreatment tank 1 by device 11, appearance air pump 12, nanometer homogeneous generator 13 and aeration plate 14, and ozone will be in sewage
Unsaturated compounds and aromatic compound degrading, then extra ozone enters in fluidized bed tank body 2 with sewage, and split-phase jet stream adds
Medicine device 3 conveys Fenton reagent and enters fluidized bed tank body 2, the hydroxide radicals attack small organic molecule that Fenton reagent generates,
Ozone and Fenton reagent dosage are effectively reduced, improves treatment effeciency while reducing cost, on three-dimensional electric 5 top of Fenton system
Equipped with three-diemsnional electrode, medicament additional amount can be saved further using electric Fenton principle degradation COD using container Residuals.
After extra ozone oxidation tail gas passes through Fenton fluidized bed in ozone pretreatment tank 1, a large amount of suspended matters can be taken away,
Simultaneously by three-dimensional electric Fenton system 5, residual ozone can be made to decompose, ozone concentration is less than 1ppm in tail gas, organic realizing
While object is removed in depth, the exhaust gas processing device of ozone is eliminated, the comprehensive utilization of resources of ozone and oxygen is realized.
Although above having made more description in detail to the present invention with generality explanation and specific embodiment,
On the basis of the embodiment of the present invention, it can be made some modifications or improvements, this be to those skilled in the art it is aobvious and
It is clear to.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to that the present invention claims guarantors
The range of shield.
Claims (10)
1. a kind of ozonation aerated formula electricity Fenton fluidized bed, which is characterized in that including fluidized bed tank body (2), fluidized bed tank body (2) is interior
It is provided with split-phase jet stream doser (3) and three-dimensional electric Fenton system (5), is provided with input sewage in the fluidized bed tank body (2)
Water distributor (4), the split-phase jet stream doser (3) conveying Fenton reagent enters in fluidized bed tank body (2) to be mixed with sewage, institute
It states fluidized bed tank body (2) bottom and is provided with ozoniferous ozone pretreatment tank (1) of production.
2. a kind of ozonation aerated formula electricity Fenton fluidized bed as described in claim 1, which is characterized in that the ozone pre-processes tank
(1) bottom is provided with aeration plate (14), be connected on the aeration plate (14) a nanometer homogeneous generator (13), hold air pump (12) and
Ozone generator (11), the ozone that the ozone generator (11) generates is according to gas sequence of flow successively by holding air pump
(12), it after nanometer homogeneous generator (13) and aeration plate (14), enters eventually into ozone pretreatment tank (1).
3. a kind of ozonation aerated formula electricity Fenton fluidized bed as described in claim 1, which is characterized in that the ozone pre-processes tank
(1) sieve (15) passed through for micro-nano size ozone bubbles and sewage is provided between fluidized bed tank body (2).
4. a kind of ozonation aerated formula electricity Fenton fluidized bed as claimed in claim 3, which is characterized in that the water distributor (4) sets
It is placed in fluidized bed tank body (2) bottom, the cloth (operating) water nozzle (42) close to sieve (15) is provided on the water distributor (4).
5. a kind of ozonation aerated formula electricity Fenton fluidized bed as described in claim 1, which is characterized in that the split-phase jet stream dosing
It is provided at least one on device (3) and is directed toward fluidized bed tank body (2) internal mixing dosing jet stream arm (33), the split-phase jet stream adds
The dioxygen water flow passage (31) being connected to mixing dosing jet stream arm (33) and ferrous sulfate runner (32) are provided on medicine device (3).
6. a kind of ozonation aerated formula electricity Fenton fluidized bed as claimed in claim 5, which is characterized in that the dioxygen water flow passage
(31) it is pressed with hydrogen peroxide medicament preparing pool (63) piping connection, the dioxygen water flow passage (31) with hydrogen peroxide medicament preparing pool (63)
Hydrogen peroxide dosing metering pump (62), hydrogen peroxide Adding medicine control valve (61), hydrogen peroxide dosing are disposed with according to fluid flow direction
Device (6), hydrogen peroxide dosing return pipe (36) and hydrogen peroxide flow back into liquid pump (34)；The ferrous sulfate runner (32) and sulfuric acid
Ferrous medicament preparing pool (73) piping connection, is pressed between the ferrous sulfate runner (32) and ferrous sulfate medicament preparing pool (73)
It is sub- that ferrous sulfate dosing metering pump (72), ferrous sulfate Adding medicine control valve (71), sulfuric acid are disposed with according to fluid flow direction
Iron chemicals dosing plant (7), ferrous sulfate dosing return pipe (37) and ferrous sulfate flow back into liquid pump (35).
7. a kind of ozonation aerated formula electricity Fenton fluidized bed as claimed in claim 6, which is characterized in that the fluidized bed tank body
(2) upper inside is provided with reflux weir plate (23), and separate hydrogen peroxide flows back into liquid pump on the hydrogen peroxide dosing return pipe (36)
(34) internal reflux weir plate (23) side of fluidized bed tank body (2) is protruded into one end, and the sewage in reflux weir plate (23) passes through double
Oxygen water dosing return pipe (36) is back to hydrogen peroxide and flows back into liquid pump (34)；It is remote on the ferrous sulfate dosing return pipe (37)
Internal reflux weir plate (23) side of fluidized bed tank body (2) is protruded into from one end that ferrous sulfate flows back into liquid pump (35), described time
Sewage in stream weir plate (23) is back to ferrous sulfate by ferrous sulfate dosing return pipe (37) and flows back into liquid pump (35).
8. such as a kind of ozonation aerated formula electricity Fenton fluidized bed of any of claims 1-7, which is characterized in that the stream
Change and be provided with filler sieve plate (21) in bed tank body (2), the three-dimensional electric Fenton system (5) is located above filler sieve plate (21), institute
Stating three-dimensional electric Fenton system (5) includes electrode (51), anode (52), cathode (53) and granule electrode (54), the split-phase jet stream
Doser (3) and ozone pretreatment tank (1) are located on filler sieve plate (21) away from the side of three-dimensional electric Fenton system (5).
9. a kind of ozonation aerated formula electricity Fenton fluidized bed as claimed in claim 8, which is characterized in that the three-dimensional electric Fenton system
System (5) further includes electrolyte inlet (55), is connected with sodium sulphate feed liquor pond (57) and electricity on the electrolyte inlet (55)
It solves liquid liquid feeding pump (56).
10. a kind of ozonation aerated formula electricity Fenton fluidized bed as claimed in claim 8, which is characterized in that the three-dimensional electric Fenton
It is provided with strainer (58), is provided with water outlet weir plate (22) above the strainer (58), the fluidized bed tank body on the upside of system (5)
(2) outside is provided with the outlet pipe (25) for extending to water outlet weir plate (22) side.
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| CN110668620A (en) * | 2019-11-07 | 2020-01-10 | 沈阳工业大学 | Jet fluidized bed type electro-Fenton treatment system |
| CN111470685A (en) * | 2020-05-06 | 2020-07-31 | 中国药科大学 | Method for removing and recovering phosphorus in pharmaceutical wastewater by homogeneous Fenton-iron-phosphorus precipitation enhanced flocculation method |
| CN113371798A (en) * | 2021-06-10 | 2021-09-10 | 华中师范大学 | Method for removing chemical oxygen demand in wastewater through ozone coupled electro-Fenton catalysis |
| CN113735227A (en) * | 2021-09-24 | 2021-12-03 | 西安建筑科技大学 | Aeration type three-dimensional electro-Fenton fluidized bed |
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| CN109179630B (en) | 2023-12-05 |
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