CN2564547Y - 3-D electrode reactor - Google Patents
3-D electrode reactor Download PDFInfo
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- CN2564547Y CN2564547Y CN 02225248 CN02225248U CN2564547Y CN 2564547 Y CN2564547 Y CN 2564547Y CN 02225248 CN02225248 CN 02225248 CN 02225248 U CN02225248 U CN 02225248U CN 2564547 Y CN2564547 Y CN 2564547Y
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Abstract
The utility model relates to a three-dimensional pole reactor used for treating organic waste water. The reactor is composed of a bed body 5, a feed cathode 1, a feed anode 6, a particle electrode 2, a water distribution plate 9, an aeration plate 10 and a DC power supply 8. The device is a three-dimensional electrode reactor taking electric energy as the stimulation energy taking cheap air as the raw materials, and taking the particle electrode having initiator as the working electrode. The reactor can generate strong oxidant H2O2 and OH on site and can effectively oxidate and even fully mineralize organic contamination into inorganic matter as CO2 and water. The device can be used in the pre-treatment of high-density and persistent organic waste water and can decompound the water into organic substance with smaller molecular weight and being prone to the degradation of microorganism, thus greatly raising the biochemical property of waste water; and the utility model can also be used in the rear treatment of the waste water bio-chemical process to ensure the standard discharge.
Description
Technical field
The utility model relates to a kind ofly can produce the three-diemsnional electrode electrochemical reaction appts of hydroxyl radical free radical and the application in treatment of Organic Wastewater thereof.
Technical background
The processing of organic pollutant, especially high concentration organic contaminant is the difficult point and the focus of our times Industrial Wastewater Treatment.The deep oxidation technology (AOTs) that people such as Glaze propose provides an important approach (W.H.Glaze for administering organic pollutant, F.Beltranand T.Tuhkanen, Water Pollution Res.J.Canada, 1992,27:23), become a water treatment new technology among developing rapidly.Its principal character is to make full use of free radical, the extremely strong oxidisability of the OH of hydroxyl radical free radical particularly, meeting is the oxidative degradation organic pollutant up hill and dale, and novel method and the relevant device of therefore researching and developing effective and cheap hydroxyl radical free radical (OH) generation are very significant.
3 D electrode reactor has bigger dignity ratio, mass transfer effect and high current efficient preferably, be a kind of have higher practicality and theoretical electrochemical reactor that is worth, it has obtained many application in wastewater treatment, but all concentrate on the processing of heavy metal ion-containing waste water at present mostly, and at the research in organic waste water field actually rare (Simonsson, D.Chem.Soc.Rev.1997,26 (3), 181-189).
Summary of the invention
The purpose of this utility model provides a kind of three-diemsnional electrode electrochemical reaction appts, and this device can produce the extremely strong hydroxyl radical free radical of oxidisability, can decompose organic pollutant in the waste water rapidly up hill and dale, can be used for efficiently handling organic waste water.
3 D electrode reactor of the present utility model is made of bed body, feeding electrode negative electrode, feeding electrode anode, granule electrode, water distributor or plate, aeration tube or plate and direct supply; Feeding electrode negative electrode and feeding electrode anode are composited by graphite and polyester non-woven fabric barrier film, place a body both sides respectively, and are connected with anodal with the negative pole of direct supply respectively; Granule electrode is filled in the body; Water distribution board and aeration board lay respectively at a body upper and lower part, and there is water inlet the water distribution board top, and there is inlet mouth the aeration board below; Bed body bottom also has water outlet.
The one-tenth of the granule electrode in the aforesaid 3 D electrode reactor is grouped into by weight and is generally: as the carbon of matrix or/and iron filings 85-96%, initiator 3-10%, binding agent 1-5%.Initiator wherein is made up of platinum, palladium and multiple metal oxide, usually form by the oxide compound of the copper of the zinc of the cobalt of the nickel of the Manganse Dioxide that accounts for granule electrode total weight percent 1-4%, 0.01% platinum, 0.02% palladium and 0.77-2%, 0.2-0.3%, 0.5-2%, 0.5-1.67%; Binding agent is Suo Jia base Xian Wei Su Na.
Said granule electrode can be prepared from by following method: by required proportioning with initiator, carbon or/and iron filings and binding agent to add the water mechanically mixing even, extruder grain, then under 200 ± 20 ℃ and anaerobic condition, heat and the binding agent in the granule electrode carried out charing in 2-3 hour, be warming up to 350+20 ℃ of activation 2-3 hour again.
The granular size of the granule electrode of 3 D electrode reactor of the present utility model is generally 4-6mm.
3 D electrode reactor of the present utility model can be used for efficiently handling organic waste water.
Utilize hydroxyl radical free radical to handle organic waste water three essential conditions are arranged: the one, excitation energy, the 2nd, initiator, the 3rd, appropriate reaction conditions.The utility model reactor is as excitation energy with cheap electric energy.Two electron reductions take place in purity oxygen that feeds in this reactor or air on granule electrode under the exciting of pulse direct current, produce the status nascendi H with certain oxidisability
2O
2Its reaction is as follows:
(M is a metal in the formula) employed granule electrode has organic effect in the enrichment solution, so that the high reactivity OH on granule electrode surface had an opportunity fully to contact with organic pollutant before by the water molecules cancellation, therefore can be rapidly effectively with mineralising organic pollutant up hill and dale:
(R is an organism in the formula)
The efficient of this reactor depends primarily on two kinds of active intermediate products, H from the above analysis
2O
2And OH.We measure and have confirmed two kinds of active intermediate products of key, H with diverse ways
2O
2With OH existing in this reactor (seeing Fig. 1 and 2).The life-span of hydroxyl radical free radical is very short, can not directly measure its ESR signal, needs to adopt spin trapping ESR method.The utility model adopts trapping agent 5 commonly used, and 5-dimethyl-1-pyrroles-nitrogen oxidation DMPO detects the hydroxyl radical free radical that this 3 D electrode reactor produced.Its detected result is seen Fig. 3.Can obviously see the feature quartet of DMPO-OH ESR spectrum on scheme, g-factor is 2.007, matches with the theoretical value of hydroxyl free.After adding hydroxyl radical free radical inhibitor N.F,USP MANNITOL, above-mentioned feature quartet disappears.These test-results can regard that the on-the-spot electricity of this 3 D electrode reactor energy causes the admissible evidence of hydroxyl radical free radical as.
The above explanation, 3 D electrode reactor of the present utility model, be with electric energy as excitation energy, be raw material with the air of cheapness, be the 3 D electrode reactor of working electrode with the granule electrode that contains initiator.This reactor can on-the-spotly produce strong oxidizer H
2O
2And OH, thereby oxygenolysis effectively, even the permineralization organic pollutant is CO
2With inorganicss such as water.It both can be used for the pre-treatment of the organic waste water of high density and bio-refractory, made it to be decomposed into the less organism that is easy to microbiological deterioration of molecular weight, thereby improved the biodegradability of waste water greatly; Also can be used for the aftertreatment of wastewater biochemical technology, to guarantee standard wastewater discharge.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the utility model 3 D electrode reactor.
Fig. 2 be the utility model 3 D electrode reactor under different air pressures, electricity causes H
2O
2Concentration with the variation in reaction times.Test shows that in air pressure electricity causes H not too under the situation of highland
2O
2Concentration increase with the increase of reaction times and air pressure.But when air pressure was too high, because stirring is too violent, oxygen was too short in the residence time on granule electrode surface, so that H
2O
2Concentration reduce on the contrary.The suitable air pressure of this explanation control is to produce higher concentration H
2O
2Essential condition.
Fig. 3 is the DMPO-OHESR spectrogram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
With reference to Fig. 1, the bed body 5 of 3 D electrode reactor of the present utility model can be made rectangle, makes with glass-reinforced plastic material.Feeding electrode negative electrode 1 and feeding electrode anode 6 place a body both sides respectively, and are connected with anodal with the negative pole of direct supply 8 respectively; Feeding electrode is composited with graphite and polyester tNonwovens barrier film, and barrier film mainly works to the variation buffering of actual industrial waste water ionic strength; Water distribution board 9 and aeration tube or aeration board 10 lay respectively at a body upper and lower part; Granule electrode 2 is filled in wherein.The size of bed body, the distance between two feeding electrode can be regulated according to the water yield of the waste water of handling and the character of waste water.Waste water enters the reactor by water distribution board from water inlet 7; Pressurized air from the inlet mouth 3 of reactor bottom by micropore aeration pipe or micro-pore aeration plate 10 to reactor aeration and and the mixing of waste water adverse current; Waste water after reaction treatment is discharged from water outlet 4.
When 3 D electrode reactor of the present utility model is used to handle organic waste water, start air compressor aeration in reactor earlier, open water intaking valve then and advance waste water, connect direct supply, regulate suitable voltage and air flow quantity, waste water is discharged from water outlet after treatment.
Below by specific embodiment application and the effect thereof of the utility model 3 D electrode reactor in handling organic waste water is described further:
Example 1
Iron filings with 91.0% (particle diameter is 2-4mm) are matrix, with 2% Manganse Dioxide, 0.01% platinum, 0.02% palladium, 0.5% cupric oxide, 1.5% nickel oxide, 0.27% cobalt oxide and 0.7% oxide compound zinc are initiator, the Suo Jia base Xian Wei Na with 4% is that the particle diameter that binding agent is made is that the 4-6mm granule electrode is a working electrode; Compound with graphite and polyester non-woven fabric barrier film is the 3 D electrode reactor of feeding electrode.At 0.3m
3Under the air flow quantity of/h, the phenol solution to 100mg/l under 20 volts the voltage was handled 60 minutes, and its clearance reaches 92%. pairs of 500mg/l trichoro-aldehyde solution-treated 30 minutes, and its clearance reaches 95%.
Example 2
Carbon with 90% is matrix, with 2.0% Manganse Dioxide, and 1.0% cupric oxide, 1.25% nickel oxide, 0.22% cobalt oxide, 1.5% oxide compound zinc, 0.01% platinum and 0.02% palladium are initiator, are that particle diameter that binding agent is made is that the granule electrode of 4-6mm is a working electrode with 4% Suo Jia base Xian Wei Na; Compound with graphite and polyester non-woven fabric barrier film is the 3 D electrode reactor of feeding electrode.At 0.16m
3Under the air flow quantity of/h, under 20 volts the voltage to the NaCN solution-treated of 100mg/l 30 minutes, its CN
-Clearance reaches 97%. pairs of trichoro-aldehyde solution-treated 30 minutes, and its clearance reaches 95%.
Example 3
Iron filings with 90% are matrix, with 3.0% Manganse Dioxide, and 0.77% cupric oxide, 2.1% nickel oxide, 0.3% cobalt oxide, 0.8% oxide compound zinc, 0.01% platinum and 0.02% palladium are initiator, and the Suo Jia base Xian Wei Na with 3% is that the particle diameter that binding agent is made is that the 4-6mm granule electrode is a working electrode; Compound with graphite and polyester non-woven fabric barrier film is the 3 D electrode reactor of feeding electrode.At 0.6m
3Under the air flow quantity of/h, under 28 volts the voltage to the COD of Taiwan printing and dyeing mill
CrConcentration is up to the treatment of dyeing wastewater of 10608mg/l 15 minutes, COD
CrDensity loss is 3672mg/l, its COD
CrClearance is 65.3%, and percent of decolourization is 95%.
Example 4
Guangdong Huizhou Taiwan investment computer enterprise is by different production line discharging D class and E class waste water, its COD
CrConcentration is respectively 986.3 and 340.8mg/l.They are at 30 volts voltage and 0.2m
3Under/h the air flow quantity, through the carbon with 89% is matrix, with 3.5% Manganse Dioxide, 0.375% cupric oxide, 1.8% nickel oxide, 0.3% cobalt oxide, 1.0% oxide compound zinc, 0.01% platinum and 0.015% palladium are initiator, are that particle diameter that binding agent is made is that the granule electrode of 4-6mm is a working electrode with 4% Suo Jia base Xian Wei Na, compound with graphite and polyester non-woven fabric barrier film is that the 3 D electrode reactor of feeding electrode was handled COD 40 minutes
CrConcentration drops to 312.8 and 68.6mg/l respectively, its COD
CrClearance is respectively 68.4% and 79.9%, and percent of decolourization is 100%.
Example 5
Percolate from garbage filling field Pollutant levels height, complicated component, its effective, harmless processing are the difficult problems of world's water treatment field always.The COD of Guangzhou Li Keng percolate from garbage filling field
CrConcentration is up to 4000-6000mg/l and NH
3The concentration of-N is up to 1600-1800mg/l.Through the iron with 89.5% is matrix, with 2.5% Manganse Dioxide, 0.5% cupric oxide, 1.2% nickel oxide, 0.3% cobalt oxide, 1.975% oxide compound zinc, 0.01% platinum and 0.015% palladium are initiator, with 4% Suo Jia base Xian Wei Na is that particle diameter that binding agent is made is that the granule electrode of 4-6mm is a working electrode, and compound with graphite and polyester non-woven fabric barrier film is that the 3 D electrode reactor of feeding electrode was handled 15 minutes; Be substrate through carbon again with 87%, with 4.0% Manganse Dioxide, 1.0% cupric oxide, 1.775% nickel oxide, 0.2% cobalt oxide, 2.0% oxide compound zinc, 0.01% platinum and 0.015% palladium are initiator, with 4% Suo Jia base Xian Wei Na is that particle diameter that binding agent is made is that the granule electrode of 4-6 is a working electrode, compound with graphite and polyester non-woven fabric barrier film is to handle in second step of carrying out 15 minutes of the 3 D electrode reactor of feeding electrode, they reduce to 1040-1579mg/l and 585-810mg/l respectively, and have improved the biodegradability of percolate widely.The percolates of handling through above two steps are again through common Wastewater Treated by Activated Sludge Process, but qualified discharge.
Claims (3)
1. a 3 D electrode reactor is characterized in that this reactor is made of bed body (5), feeding electrode negative electrode (1), feeding electrode anode (6), granule electrode (2), water distributor or plate (9), aeration tube or plate (10) and direct supply (8); Feeding electrode negative electrode and feeding electrode anode are composited by graphite and polyester non-woven fabric barrier film, place a body both sides respectively, and are connected with anodal with the negative pole of direct supply respectively; Granule electrode is filled in the body; Water distribution board and aeration board lay respectively at a body upper and lower part, and there is water inlet (7) the water distribution board top, and there is inlet mouth (3) the aeration board below; Bed body bottom also has water outlet (4).
2. according to the described 3 D electrode reactor of claim 1, the one-tenth that it is characterized in that said granule electrode (2) is grouped into by weight and is: carbon is or/and iron filings 85-96%, initiator 3-10%, binding agent 1-5%; Initiator wherein is by weight being made up of the oxide compound of 1-4% Manganse Dioxide and 0.01% platinum, 0.02% palladium, 0.77-2% nickel, 0.2-0.3% cobalt, 0.5 2% zinc, 0.5-1.67% copper; Binding agent is Suo Jia base Xian Wei Su Na.
3. according to the described 3 D electrode reactor of claim 1,2 or 3, the granular size that it is characterized in that said granule electrode (2) is 4-6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02225248 CN2564547Y (en) | 2002-01-21 | 2002-01-21 | 3-D electrode reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02225248 CN2564547Y (en) | 2002-01-21 | 2002-01-21 | 3-D electrode reactor |
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|---|---|
| CN2564547Y true CN2564547Y (en) | 2003-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02225248 Expired - Fee Related CN2564547Y (en) | 2002-01-21 | 2002-01-21 | 3-D electrode reactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100500583C (en) * | 2006-11-28 | 2009-06-17 | 北京科技大学 | Fluid bed electrode reactor for processing organic exhaust water |
| CN105253960A (en) * | 2015-11-23 | 2016-01-20 | 雅本化学股份有限公司 | Wastewater treatment device and method for treating wastewater by adopting wastewater treatment device |
| CN109811355A (en) * | 2019-03-26 | 2019-05-28 | 扬州大学 | Fe2+The 3 D electrode reactor that cathodic reduction is coupled with anodic oxidation |
-
2002
- 2002-01-21 CN CN 02225248 patent/CN2564547Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100500583C (en) * | 2006-11-28 | 2009-06-17 | 北京科技大学 | Fluid bed electrode reactor for processing organic exhaust water |
| CN105253960A (en) * | 2015-11-23 | 2016-01-20 | 雅本化学股份有限公司 | Wastewater treatment device and method for treating wastewater by adopting wastewater treatment device |
| CN109811355A (en) * | 2019-03-26 | 2019-05-28 | 扬州大学 | Fe2+The 3 D electrode reactor that cathodic reduction is coupled with anodic oxidation |
| CN109811355B (en) * | 2019-03-26 | 2021-04-16 | 扬州大学 | Fe2+Three-dimensional electrode reactor with coupled cathode reduction and anode oxidation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |