CN106746052A - A kind of reverse-flow type iron-carbon micro-electrolysis couple Fenton treatment reaction devices - Google Patents
A kind of reverse-flow type iron-carbon micro-electrolysis couple Fenton treatment reaction devices Download PDFInfo
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- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 24
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000010168 coupling process Methods 0.000 claims abstract description 41
- 238000005859 coupling reaction Methods 0.000 claims abstract description 41
- 229910052742 iron Inorganic materials 0.000 claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000010992 reflux Methods 0.000 claims abstract description 18
- 239000003814 drug Substances 0.000 claims abstract description 14
- 229940079593 drug Drugs 0.000 claims abstract description 13
- 239000010865 sewage Substances 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 239000011324 bead Substances 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 7
- 238000011049 filling Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 239000000126 substance Substances 0.000 description 12
- 230000003647 oxidation Effects 0.000 description 10
- 238000007254 oxidation reaction Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 6
- 238000006731 degradation reaction Methods 0.000 description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 5
- 239000012028 Fenton's reagent Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 230000001112 coagulating effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- RMVRSNDYEFQCLF-UHFFFAOYSA-N thiophenol Chemical compound SC1=CC=CC=C1 RMVRSNDYEFQCLF-UHFFFAOYSA-N 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 238000009303 advanced oxidation process reaction Methods 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- -1 iron ion Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910021386 carbon form Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 239000010812 mixed waste Substances 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46176—Galvanic cells
-
- 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
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them
-
- 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
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
A kind of reverse-flow type iron-carbon micro-electrolysis couple Fenton treatment reaction devices, including iron-carbon micro-electrolysis coupling Fenton reactors and return tank and drug feeding pipeline blender composition, it is characterised in that：Inlet channel is set in the side lower part of iron-carbon micro-electrolysis coupling Fenton reactors one, another upper lateral part sets iron canister outlet conduit；Sewage enters drug feeding pipeline blender and H2O2Enter iron-carbon micro-electrolysis after being sufficiently mixed and couple Fenton reactors；Then enter return tank through iron canister outlet conduit, inlet channel, another part discharge are back to through reflux line by certain residence time rear portion；Iron carbon filler is filled in the iron-carbon micro-electrolysis coupling Fenton reactors, top sets charge door, and bottom sets the hollow plastic beads of filling in the mouth that reloads, return tank.
Description
Technical field
The present invention relates to sewage treatment area, more particularly to a kind of reverse-flow type iron for high concentration hard-degraded organic waste water
Carbon micro-electrolysis-coupling Fenton treatment reaction devices.
Background technology
Under the historical background of Industries place extensive development, high concentration hard-degraded organic waste water pollution sources increasingly increase, and bring
Serious pollution problem.So-called " high concentration ", refers to that the organic concentration (in terms of COD) of this kind of waste water is higher, is generally existed
More than 2000mg/L, even as high as every liter for having is tens of thousands of to ten tens of thousands of mg/L；So-called " difficult degradation " refers to giving birth to for this kind of waste water
The property changed relatively low (BOD5/COD values are even lower generally below 0.3), it is difficult to biodegradable." high concentration ", " difficult degradation " two
The superposition of big characteristic, and with obvious carcinogenic, teratogenesis, mutagenesis " three cause " effect, be difficult to reach using conventional processing method
To expected treatment effect.
After finding Fenton reagent in a scientific research from French scientist H J Fenton in 1894, with people
Fenton reactions are continued to optimize, it is most with application that Fenton methods have become research in hardly degraded organic substance processing procedure
A kind of advanced oxidation processes, compared with other advanced oxidation processes, because standby the advantages of it is simple, quick, oxidation scope is wide
Favored by people.
Standard Fenton methods refer to Fe2+/H2O2System, wherein Fe2+Mainly as the catalyst of reaction, make H2O2Pass through
React the OH (hydroxy radical) for producing and play oxidation.People employ a chemical equation for wide reference
Come the chemical reaction for describing to occur in Fenton reagent:Fe2++H2O2→Fe3++OH-+·OH.React the oxidation electricity of the OH for producing
Electrode potential is up to 2.80V, and can trigger ambient substance chain reaction again, produces more other free radicals, final most of
Organic matter is degraded even mineralising, thus Fenton reactions can without selective oxidation water in most of organic matters, in the short time
It is interior to decompose oxidation operation.Simultaneously as ferrous ion can be converted into iron ion during the course of the reaction, and iron ion has
Coagulating sedimentation is acted on, and so when sewage is processed, Fenton reagent can reach the effect of oxidation stain thing and coagulating sedimentation, can be with
Save follow-up coagulating sedimentation operation, reduce equipment investment.
Traditional Fenton methods with Special Equipment due to accurately adding Fe2+, there is Fe in solution2+In mixed process, future is gone back
Obtain and and H2O2Reaction is just oxidized to Fe3+, cause mineralization of organic material degree is not high, dioxygen water consumption is big, operating cost is high etc.
Shortcoming.By itself and iron-carbon micro-electrolysis technical tie-up, light electrolysis-coupling Fenton oxidation method is formed, in the treatment of waste water, with suitable
With object range is wide, more preferable treatment effect and the advantages of cheap operating cost.Iron carbon forms countless small galvanic cells in waste water
Generation electrochemical reaction, while degradation of organic substances is played, iron generates countless Fe as anodic solution2+, it is follow-up Fenton
Reaction provides source of iron.Other activated carbon is a kind of common adsorbent, can the effectively colourity of Adsorption waste water, stink and water
Middle most organic pollutants.Active carbon adsorption is coupled with Fenton oxidation method, can make the strong adsorptivity of activated carbon with
The strong oxidizing property of Fenton reagent is organically combined：Activated carbon can simultaneously adsorb Pollutants in Wastewater and be reacted with Fenton reagent
Thing, reacts Fenton oxidation and occurs in activated carbon surface, so that the concentration of the neighbouring pollutants of OH (light base free radical) is improved,
Enhance the efficiency of Fenton reactions；Light base free radical meeting oxidation-adsorption solves work in the pollutant of activated carbon surface simultaneously
Property charcoal regeneration problem.
Device at present on light electrolysis-coupling Fenton treatment waste water also has some to study, but has certain limitation.
As Chinese patent 201420128881.0 discloses a kind of multistage iron-carbon micro-electrolysis coupling Fenton oxidation bed reactor, this reactor
Solve to a certain extent traditional coking waste water treatment process it is undesirable to difficult degradation complexity organic pollutant removal effect and
Caused some problems, treatment of heterocycle type organic and poisonous and harmful substance polycyclic for difficult degradation in waste water extremely has
Effect, but multistage iron carbon mix is closely connected in reactor, easily causes filler hardened so that and internal waste water change of flow state increases
Reload difficulty, so as to limit its extensive use；Chinese patent 201520130858.X discloses a kind of iron-carbon micro-electrolysis-class Fenton
Experimental provision, this device mainly for Laboratory Waste Water Treatment, to a certain extent for follow-up commercial Application provide test parameters,
Theoretical foundation and technological guidance, but there is the problems such as charging is uneven, and water quality characteristic cannot be controlled accurately in device；Chinese patent
201410585310.4 disclose a kind of electrolysis coupling class Fenton water treatment facilities, iron light electrolysis are promoted to a certain extent anti-
Should, hardened problem, the high, good sewage processing effect of reaction efficiency of filler etc., but complex structure are overcome, operational management is relative
Cumbersome, operating cost accordingly increases, and is unfavorable for that practical application is promoted.
The content of the invention
It is contemplated that in providing, a kind of reaction efficiency is high, and good sewage processing effect, simple to operate, anti-compaction ability are strong
Iron-carbon micro-electrolysis-coupling Fenton water treatment facilities, while to the research and development of correlation technique and equipment are with very strong guidance and borrow
Mirror meaning.
The present invention provides following technical scheme：A kind of reverse-flow type iron-carbon micro-electrolysis-coupling Fenton treatment reaction devices,
Including iron-carbon micro-electrolysis-coupling Fenton reactors and return tank and drug feeding pipeline blender composition, it is characterised in that：In iron carbon
Light electrolysis-side lower part of coupling Fenton reactors one sets inlet channel, and another upper lateral part sets iron canister outlet conduit, the micro- electricity of iron carbon
Solution-connected by iron canister outlet conduit between coupling Fenton reactors and return tank, inlet channel and iron-carbon micro-electrolysis-
Drug feeding pipeline blender is provided between coupling Fenton reactors, sewage enters drug feeding pipeline blender and H2O2After being sufficiently mixed
Into iron-carbon micro-electrolysis-coupling Fenton reactors, then enter return tank through iron canister outlet conduit；During by certain stop
Between after, a part is back to inlet channel through reflux line, another part discharge.The reflux line on the top of return tank,
Reflux line is connected with inlet channel, and iron carbon filler is filled in the iron-carbon micro-electrolysis-coupling Fenton reactors, and top sets and adds
Material mouth, bottom sets the mouth that reloads；Hollow plastic beads is loaded in return tank.
Wherein it is preferred to, the iron-carbon micro-electrolysis-coupling Fenton reactors set charging aperture and the mouth that reloads respectively up and down.
Wherein it is preferred to, the return tank top sets out the mouth of a river and reflux line respectively, and internal filled plastics are hollow small
Ball, material is PVC or PE.
Wherein it is preferred to, the reflux line is connected to inlet channel.
Wherein it is preferred to, the activated carbon and sponge iron filled in the iron-carbon micro-electrolysis coupling-Fenton reactors are in multiple
Close spherical, its filling rate is 70%~80%.
The present invention has advantages below compared with prior art：
1st, the iron material employed in the present invention is the sponge iron that technical performance has overwhelming superiority, and reactivity is scrap iron
Tens times of bits, molten iron slow-footed problem when thus solving traditional iron material using waste iron filing.Simultaneously because iron carbon material
Special spherical composite construction, it is therefore prevented that easy the to be hardened problem of traditional iron-carbon micro-electrolytic material；Activated carbon and iron in running
Material is consumed simultaneously, it is to avoid traditional iron-carbon micro-electrolytic material regular replenishment iron material and discharging stirring problem；
2nd, " a kind of preparation method (patent of invention ZL201210128492.3) of the modified iron-carbon micro-electrolytic material that polarizes ",
For implementation of the invention is laid a good foundation；
3rd, return tank sets certain residence time, and internal filled plastics bead in the present invention, is sufficiently mixed waste water energy,
The adequacy of Fenton reactions is ensure that, treatment effeciency is improve.Additionally, waste water circulation secondary response is realized in backflow, reduce
Influent load so that contaminant degradation is more thorough；
4th, present invention process is simple, it is easy to which operation and control, required raw material are easy to get, and are easy to implement industrialized production, embody
The novelty of technology.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described.It should be evident that drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the invention.
In figure：1-iron-carbon micro-electrolysis-coupling Fenton reactor 2-return tank, 3-drug feeding pipelines blender 4-enter
Waterpipe 5-iron carbon filler 7-iron canister outlet conduit 8-reflux line, 9-hollow 10-charge door of plastic beads
11-reload mouth
Specific embodiment
The present invention is further described with reference to embodiment.
Embodiment 1
As shown in figure 1, a kind of reverse-flow type iron-carbon micro-electrolysis-coupling Fenton treatment reaction devices, including the micro- electricity of iron carbon
Solution-coupling Fenton reactors 1 and return tank 2 and drug feeding pipeline blender 3 are constituted, it is characterised in that：In iron-carbon micro-electrolysis-coupling
Close the side lower part of-Fenton reactors 1 one and set inlet channel 4, another upper lateral part sets iron canister outlet conduit 7, iron-carbon micro-electrolysis-coupling
Close and be connected by iron carbon outlet conduit 7 between Fenton reactors 1 and return tank 2, in inlet channel 4 and iron-carbon micro-electrolysis-coupling
There is drug feeding pipeline blender 3, sewage enters drug feeding pipeline blender 3 and H between conjunction Fenton reactors 12O2It is sufficiently mixed
Afterwards, into iron-carbon micro-electrolysis-coupling Fenton reactors 1, then return tank 2 is entered through iron canister outlet conduit 7；It is certain to stop
Time rear portion is back to inlet channel 4 through reflux line 8, and another part is discharged, and the reflux line 8 is in return tank 2
Top, reflux line 8 is connected with inlet channel 4, and iron carbon filler is filled in the iron-carbon micro-electrolysis coupling-Fenton reactors 1
5, top sets charge door 10, and bottom sets and hollow plastic beads 9 is loaded in the mouth 11 that reloads, return tank 2.
The iron-carbon micro-electrolysis-coupling Fenton reactors set charging aperture 10 and the mouth 11 that reloads respectively about 3.
The top of the return tank 2 sets out the mouth of a river and reflux line 8, and internal filled plastics hollow beads 9 respectively, and material is
PVC or PE.
The reflux line 8 is connected to inlet channel 4.
The activated carbon and sponge iron filled in the iron-carbon micro-electrolysis-coupling Fenton reactors 1 are in composite spherical, and it is filled out
It is 70%~80% to fill rate.
During work, after water enters the present invention from inlet channel 4, mix with phegma first, then mix in drug feeding pipeline
With H in device 32O2It is sufficiently mixed；Enter return tank 2 after iron-carbon micro-electrolysis-treatment of coupling Fenton reactors 1；Waste water is in backflow
Stop the discharge of certain hour rear portion in tank 2, another part is back to inlet channel and processes again with intaking to mix.
Iron-carbon micro-electrolysis-coupling Fenton reactors are provided with charging aperture and the mouth that reloads, and reactor is mended after operation a period of time
Activated carbon and sponge Iron-complex-filling are filled or changed, promotes reactor effective to run.
Embodiment 2
By taking pharmacy waste water as an example：Essentially from domestic certain pharmacy factory production waste water, main component is dichloromethane to this kind of sewage
Alkane, dimethylbenzene, isopropanol, methanesulfonic acid, tetrahydrofuran, toluene, acetone etc., sewage quality is shown in Table 1.
The sewage quality of table 1
Operation result shows：The B/C values of raw wastewater are increased to 0.45 or so by 0.16 or so, improve the biochemical of waste water
Property, COD clearances are 45% or so.As can be seen here, the present invention has preferable treatment effect to pharmacy waste water, pre-processes water outlet
Water quality can meet the requirement of subsequent biochemical treatment.
Embodiment 3
By taking wastewater from chemical industry as an example：Such waste water is essentially from certain chemical industry workshop, predominantly medicine intermediate benzenethiol
Produced in series waste water, with this experimental provision is preprocessing means in design, while supporting biochemical treatment, sewage quality is shown in Table 2.
The wastewater from chemical industry water quality of table 2
Operation result shows：The pH of waste water is effectively improved by this experimental provision, needed for the follow-up neutralization reaction of reduction
Alkali dosage；The macromolecular in waste water, heterocyclic hardly degraded organic substance is set thoroughly to be decomposed into the alcohol of good biodegradability simultaneously
The small-molecule substances such as class, liquor-saturated class, shuttle acids, effectively improve the B/C ratios of waste water.Total row's mouth oil content, COD, volatile phenol, benzene,
Toluene etc. has reached national grade one discharge standard, can be with continuous-stable qualified discharge.
Embodiment 4
By taking Nitrilon waste water treatment as an example：, essentially from northeast chemical fibre factory waste water, pollutant concentration is high, and composition is multiple for waste water
It is miscellaneous, containing poisonous and harmful substance etc..Sewage quality is shown in Table 3.
The leather-making waste water water quality of table 3
Operation result shows：Exporting water quality is, CODCrIt is 234mg/l, ammonia nitrogen 48.29mg/l；Clearance is respectively：
CODCrIt is 65%, ammonia nitrogen is 58.26%.
Claims (6)
1. a kind of reverse-flow type iron-carbon micro-electrolysis-coupling Fenton treatment reaction devices, including iron-carbon micro-electrolysis-coupling Fenton
Reactor (1) and return tank (2) and drug feeding pipeline blender (3) composition, it is characterised in that：In iron-carbon micro-electrolysis-coupling
The side lower part of Fenton reactors (1) sets inlet channel (4), and another upper lateral part sets iron carbon and fills outlet conduit (7), the micro- electricity of iron carbon
Solution-connected by iron carbon outlet conduit (7) between coupling Fenton reactors (1) and return tank (2), in inlet channel (4) and
Drug feeding pipeline blender (3) is provided between iron-carbon micro-electrolysis-coupling Fenton reactors (1), sewage mixes into drug feeding pipeline
Device (3) enters iron-carbon micro-electrolysis-couple Fenton reactors (1) after being sufficiently mixed with H2O2, then through iron carbon filling outlet conduit
(7) return tank (2) is entered；Inlet channel (4) is back to through reflux line (8) by certain residence time rear portion, it is another
Part is discharged, and the reflux line (8) is connected in the top of return tank (2), reflux line (8) with inlet channel (4), the iron
Filling iron carbon filler (5) in carbon micro-electrolysis-coupling Fenton reactors (1), top sets charge door (10), and bottom sets the mouth that reloads
(11) hollow plastic beads (9), is loaded in return tank (2).
2. a kind of reverse-flow type iron-carbon micro-electrolysis-coupling Fenton treatment reaction devices as claimed in claim 1, its feature exists
In：The iron-carbon micro-electrolysis-coupling Fenton reactors (1) sets charging aperture (10) and the mouth that reloads (11) respectively up and down.
3. a kind of reverse-flow type iron-carbon micro-electrolysis-coupling Fenton treatment reaction devices as claimed in claim 1, its feature exists
In：Return tank (2) top sets out the mouth of a river and reflux line (8), and internal filled plastics hollow beads (9), material respectively
It is PVC or PE.
4. a kind of reverse-flow type iron-carbon micro-electrolysis-coupling Fenton treatment reaction devices as claimed in claim 1, its feature exists
In：The reflux line (8) is connected to inlet channel (4).
5. a kind of reverse-flow type iron-carbon micro-electrolysis-coupling Fenton treatment reaction devices as claimed in claim 1, its feature exists
In：Reflux line (8) is back to setting flowmeter and valve, the iron carbon being connected with return tank (2) on the pipeline of inlet channel (4)
Flowmeter and valve are set on tank outlet conduit (7).
6. a kind of reverse-flow type iron-carbon micro-electrolysis-coupling Fenton treatment reaction devices as claimed in claim 1, its feature exists
In：The activated carbon and sponge iron that the iron-carbon micro-electrolysis couple filling in-Fenton reactors (1) are in composite spherical, its filling
Rate is 70%~80%.
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Application publication date: 20170531 |