CN101402484A - Free radical deep oxidization reactor - Google Patents
Free radical deep oxidization reactor Download PDFInfo
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- CN101402484A CN101402484A CNA2008101169543A CN200810116954A CN101402484A CN 101402484 A CN101402484 A CN 101402484A CN A2008101169543 A CNA2008101169543 A CN A2008101169543A CN 200810116954 A CN200810116954 A CN 200810116954A CN 101402484 A CN101402484 A CN 101402484A
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Abstract
The invention discloses a free radical advanced oxidation reactor, which comprises a reactor body, an ultraviolet lamp and an aeration device, wherein the reactor body is a closed vessel; a water inlet, a water outlet, a medicine feeding port, an ozone inlet and an end gas outlet which are communicated with the inside of the reactor body are arranged on the reactor body respectively; the ultraviolet lamp and the aeration device are both arranged inside the reactor body; the ultraviolet lamp adopts at least two groups of medium voltage fluorescent lamps with different wavelengths, and the aeration device is communicated with the ozone inlet on the reactor body. The reactor has the advantages of simple structure, strong capability of treating difficultly biodegraded organic matters, short reaction time, high reaction efficiency, wide application range, simple operation, stable outputted water quality, no secondary pollution, joint use with other water treatment methods, and the like. The reactor can be used as an advanced treatment reactor for a slightly polluted water body or a pretreatment reactor for a high-concentration organic polluted water body.
Description
Technical field
The present invention relates to a kind of free radical deep reactor and be the waste water advanced processing utilisation technology of technological core with this reactor, be a kind ofly difficult for biological degradation and toxic organics can be carried out deep oxidation, be degraded to carbonic acid gas and water and nontoxic small molecules organic compound, belong to water treatment and recycling economy field.
Background technology
High-level oxidation technology (Advanced Oxidation Process, be called for short AOP) be defined as producing the technical process of great amount of hydroxy group free radical, promptly utilize physics such as various light, sound, electricity, magnetic and chemical process to produce a large amount of free radicals, and then the technical process that utilizes the strong oxidation characteristic of free radical that organism in the waste water is degraded.
Prior art is numerous and complicated numerous with the technology of ozone and UV-light combination, but mainly be divided into two classes, one class is the illuminaton reactor of ultraviolet lamp (high pressure or low pressure mercury lamp) on reactor top, the ultraviolet lamp (high pressure or low pressure mercury lamp) that this type of reactor is required is not because in aqueous solution inside, so the photon of loss is more, shine inhomogeneously, the photon utilization ratio is low, and reaction efficiency is lower; When the transmittance of reaction soln was not high, the reaction of solution bottom was more insufficient; Second class is a ultraviolet lamp submerged type reactor, though adopt this type of reactor to solve the shortcoming of part ultra violet lamp formula reactor, but the ultraviolet wavelength that a lot of reaction units adopt is single, power is less, and in reaction process, make the quartzy sleeve pipe of UV-light outside adhere to incrustation scale easily, have a strong impact on the transmittance of UV-light, and then influence reaction efficiency.
Because ozone has very strong oxidation susceptibility, so the aerating system of prior art adopts ceramic aeration head substantially in order to solve anti-oxidant problem, pottery aeration head aeration is inhomogeneous, and the space is bigger, and gas is at first given vent to anger from wide-aperture pore, makes the dissolved efficiency of ozone on the low side.
In order to improve the dosage of ozone, the common practice of prior art all is to improve the pure oxygen air input, and the air input that in fact improves pure oxygen has only and is only within the specific limits effectively, too high pure oxygen air input, make ozonizer purity oxygen in time can't be converted into high-concentrated ozone, the dividing potential drop of ozone is reduced, be unfavorable for the dissolving and the reaction of ozone equally, and enter into dosage height, the mistaken ideas of reaction effect difference.And do not have now a kind of rationally with ozone, UV light combined, and free radical deep oxidization reactor by cooperating high pH water surrounding that waste water is handled.
Summary of the invention
Embodiment of the present invention provides a kind of free radical deep oxidization reactor.
The objective of the invention is to be achieved through the following technical solutions:
Embodiment of the present invention provides a kind of free radical deep oxidization reactor, and this reactor comprises: reactor body, ultraviolet lamp and aerating apparatus; Wherein, reactor body is an encloses container, is respectively equipped with water-in, water outlet, dispensing mouth, ozone inlet mouth and tail gas outlet with the reactor body internal communication on the reactor body; Described ultraviolet lamp, aerating apparatus all are located in the reactor body, and ultraviolet lamp adopts the different middle pressure ultraviolet light of at least two group wavelength, and aerating apparatus is communicated with ozone inlet mouth on the reactor body.
Described dispensing mouth is arranged on separately on the reactor body sidewall.
Described dispensing mouth is arranged on the reactor body sidewall below the described water-in.
Described reactor body is the stainless steel vessel of square column type, and its ratio high and base is 2.4: 1, is provided with base below the reactor body, and the reactor body top is provided with the sealing cover by bolting.
Described aerating apparatus is the pure metallic titanium aeration head, is arranged on the bottom in the reactor body, and the aperture of aeration head is 0.45～1 micron.
Described ultraviolet lamp adopts and presses the amalgam ultraviolet lamp in two groups, every group of ultraviolet lamp comprises at least presses the amalgam ultraviolet lamp in two, the wavelength of two groups of ultraviolet lamps is respectively 254nm and 185nm, and two groups of ultraviolet lamps all are installed in the reactor body by quartzy sleeve pipe submerged type from described reactor body top.
The ratio of the height that slips into length and reactor body of described ultraviolet lamp is 1: 1.2.
Described reactor also comprises: be arranged on the reactor body inner top sour drip washing head corresponding with ultraviolet lamp, the inlet of described sour drip washing head is arranged on the reactor body outside.
The technical scheme that is provided by the invention described above embodiment as can be seen, provide equipment to be connected by ozone inlet mouth and ozone in the embodiment of the present invention, realize the UV-light combined utilization of ozone with different wave length, UV-light by different wavelength, the compound that can in the organic molecule that excites, have unsaturated structure, increase excitation intensity simultaneously, thereby improved degraded dynamics greatly middle product to intermediate product and some small organic molecules of reaction.Thereby effluent quality is further improved.
Airtight reactor body presses the dissolved efficiency that makes ozone to improve in can increasing.As the ozone tail gas outlet is fed in the water body of the outer certain depth of reactor, rationally increase the required pressure of exhaust, make that the pressure in the system raises, thereby promote the dissolved efficiency of ozone; On the other hand, the ozone of becoming separated in flight can second stage employ, reaches the usefulness of saving cost and reducing greenhouse gas emission.This structure of reactor is simple, and it is strong to handle the refractory organic ability, and the reaction times is short, the reaction efficiency height, and applied range, easy and simple to handle, stable effluent quality, non-secondary pollution can be united advantages such as use with other water treatment method.Can be used as the advanced treatment reactor of micropollutant water or the pretreatment reaction device of high density organic pollution aquifer.
Description of drawings
Fig. 1 is the structural representation of the reactor of the embodiment of the invention.
Each label is respectively among the figure: 1, base; 2, reactor body; 3, aerating apparatus; 4, dispensing mouth; 5, ultraviolet lamp; 6, water-in; 7, sour drip washing head; 8, tail gas outlet; 9, water outlet; 10, ozone inlet mouth; 11, sealing cover.
Embodiment
Embodiment of the present invention provides a kind of free radical deep oxidization reactor, and this reactor comprises: reactor body, ultraviolet lamp and aerating apparatus; Wherein, reactor body is an encloses container, is respectively equipped with the water-in, water outlet, dispensing mouth, ozone inlet mouth and the tail gas outlet that are communicated with inside reactor on the reactor body; Described ultraviolet lamp, aerating apparatus all are located in the reactor body, and ultraviolet lamp adopts the different middle pressure ultraviolet light of at least two group wavelength, and aerating apparatus is communicated with ozone inlet mouth on the reactor body.When through the middle water after the biochemical second-stage treatment during through this reactor, its water outlet can reach the standard of reuse, thereby solves the water pollution problems that shortage of water resources and hardly degraded organic substance cause to a certain extent; Simultaneously, this reactor also can be applicable to contain the pretreatment stage of high concentration organic contaminant waste water, to improve water quality, improves its biodegradability, for the biochemical reaction of subsequent disposal provides safeguard.
For ease of understanding, the invention will be further described below in conjunction with the drawings and specific embodiments.
Embodiment one
Present embodiment provides a kind of free radical deep oxidization reactor, this reactor can move continuously, as the advanced treatment reactor of micropollutant water or the pretreatment reaction device of high density organic pollution aquifer, water outlet when guaranteeing wastewater treatment after the second-stage treatment can reach the requirement of reuse through behind this reactive system, thereby solves the water pollution problems that shortage of water resources and hardly degraded organic substance cause to a certain extent; During as the pretreatment reaction device, can be used in the pretreatment stage that contains high concentration organic contaminant waste water,, improve its biodegradability, for follow-up biochemical reaction provides safeguard to improve water quality.
This structure of reactor specifically comprises as shown in Figure 1: reactor body 2, ultraviolet lamp 5 and aerating apparatus 3; Wherein, reactor body 2 is an encloses container, be respectively equipped with water-in 6, water outlet 9, dispensing mouth 4, ozone inlet mouth 10 and tail gas outlet 8 on the reactor body 2 with reactor body 2 internal communication, described ultraviolet lamp 5, aerating apparatus 3 all are located in the reactor body 2, ultraviolet lamp 5 adopts the different middle pressure ultraviolet light of at least two group wavelength, and aerating apparatus 3 is communicated with ozone inlet mouth 10 on the reactor body 2.Wherein, tail gas outlet 8 is arranged on the top of reactor body 2, and ozone tail gas can be discharged by the tail gas outlet and be imported to terminal processing system, carries out second stage employ.The opening end of tail gas outlet 8 in reactor body 2 stretches into reactor body inside, this structure can will feed in the follow-up water body disinfection device without the ozone tail gas that utilizes, not only can press in the augmenting response device, the accelerate ozone dissolving, and can carry out second stage employ to ozone.
Wherein, reactor body 2 can adopt the square column type container of stainless steel preparation, the ratio on the height of reactor body 2 and base is 2.4: 1, this ratio can increase the dissolved efficiency of ozone, avoid the water surface overtension simultaneously, cause in aeration process, producing a large amount of foams, influence reactor and use.Be provided with sealing cover 11 above the reactor body 2, be provided with base 1 below the reactor body 2 by bolting.
Aerating apparatus 3 in the reactor body 2 adopts the pure metallic titanium aeration head, this aeration head is arranged on the bottom in the reactor body, the aperture of aeration head is 0.45～1 micron, the inlet mouth of aeration head is connected with the ozonizer that ozone is provided, during work, the intake pressure of aeration head equals or a little more than pressure that aeration head bore.Aerating apparatus also can adopt the aeration head of other structure, or fine bubble generating apparatus, as long as reach the purpose that improves ozone solution and reaction efficiency;
Ultraviolet lamp 5 in the above-mentioned reactor can adopt and press the amalgam ultraviolet lamp in two groups, every group of ultraviolet lamp comprises at least presses the amalgam ultraviolet lamp in two, the wavelength of two groups of ultraviolet lamps is respectively 254nm and 185nm, two groups of ultraviolet lamps all are installed in the reactor body by quartzy sleeve pipe submerged type from the sealing cover at described reactor body top, and the ratio of the height that slips into length and reactor body of described ultraviolet lamp is 1: 1.2.This proportion structure contacts ultraviolet lamp as much as possible with water body, increase the utilising efficiency of photon, reduces the blind area of UV-irradiation.
Be the convenient incrustation scale of tying on the quartzy sleeve pipe of ultraviolet lamp outside that cleans, the setting sour drip washing head corresponding on the sealing cover at reactor body top with ultraviolet lamp and quartzy sleeve pipe, the liquid outlet of acid drip washing head is corresponding with quartzy telescopic installation site, the inlet of described sour drip washing head is arranged on the reactor body outside, the liquid feed device that cleans acid solution with supply is connected, like this after incrustation scale is assembled in quartzy cover tube outside, the acid solution that provides by liquid feed device sprays through sour drip washing head, can remove easily attached to the incrustation scale on the quartzy sleeve pipe, reach the purpose of cleaning, the setting of this sour drip washing head need not be taken out incrusted quartzy sleeve pipe and be cleaned or change, reduce the maintenance difficulties of reactor, also guaranteed the radiation response of ultraviolet lamp.
The dispensing mouth that is provided with on the above-mentioned reactor, can be used as the inlet of wet method dosing, be used in reactor body, adding alkali, with source as free radical, and by the alkali that adds can in and the organic acid that produced in the organic matter degradation process, prevent that pH value of solution from descending.This dispensing mouth can also be arranged on the described water-in, directly adds alkali when introducing waste water in reactor body, and solution is regulated.
In this reactor use, the ozone inlet mouth is connected with the ozone air feed equipment, in reactor, supply ozone, and the cooperation of the ultra violet lamp by two groups of different wave lengths, the waste water solution that the water-in of reactor body is introduced is handled, solution after the processing is discharged through water outlet, can guarantee the free radical in the solution and prevent that the pH value from descending by dispensing mouthful input alkali in the treating processes.
This reactor is primarily aimed at and is difficult to biodegradable organic pollutant, such as tannin, and xylogen, hemilignin, dyestuff and chlorobenzene and derivative thereof etc.Adopt middle pressure ultraviolet lamp and the high pH solution associated form of ozone with two groups of different wave lengths, produce the high density hydroxyl radical free radical, utilize the strong oxidation characteristic of hydroxyl radical free radical, organism permineralization with these difficult for biological degradation, perhaps be translated into and be easy to biodegradable organic substance, again with its degraded fully by follow-up bio-reactor.The effect of this reactor has two aspects, and one is used for the micropollutant water advanced treatment of (through second-stage treatment).Its two, be used for pre-treatment without the industrial sewage of second-stage treatment.
Organic concentration is lower in the micropollutant water, and transmittance is higher, adopts pure titanium metal aeration head uniform aeration, less bubble helps the dissolving of ozone in the aqueous solution, therefore, the dosage that increases ozone mainly realizes by increasing aeration area, and is not to increase the aeration gas flow rate.Adding of UV-light selects two wavelength regions to add, also can be by experiment during use, the main uv-absorbing peak position that scans former water is determined the ultraviolet lamp of required selection, the ultraviolet light intensity with add pollutent that dosage and Theoretical Calculation draw and contaminant degradation process in the concentration of the intermediate product that produces relevant.Separate with the zone of the micro-bubble of aeration head generation the installation site of slipping into of ultraviolet lamp, avoids UV-light and because be subjected to the scattering process of bubble light transmission efficiency is descended.At the pretreatment stage of industrial sewage, it is very high often can to face some colourities, the sewage that transmittance is relatively poor, and we adopt the method that continues to add alkali, make the pH value of solution in the reaction process continue to keep higher, and reaction remains on the highly effective reaction stage.
At some persistent pollutants, can together unite use with corresponding catalyzer at the reactor in using present embodiment, or in subsequent disposal, unite use with biological process, persistence organic pollutant is carried out physics and chemical scavenging and bioscrubbing.
Adopt constant pressure or alternate manner with the constant pressure of ozone tail gas outlet in some values, the molten gas efficient of ozone is improved.
The reactor of present embodiment has following advantage:
(1) with the UV-light combined utilization of ozone with different wave length, as adopt 254nm UV-light and 185nm UV-light, the UV-light of 254nm mainly excites the compound that has unsaturated structure in the organic molecule, and can increase the intermediate product and the excitation intensity of some small organic molecules to reaction by the 185nm UV-light, and by adopting one group (at least two ultraviolet lamps), strengthened the dosage of 185nm UV-light, thereby improved degraded dynamics greatly middle product.Thereby effluent quality is further improved;
(2) with ozone with high pH environment combined utilization, adopt a real-time benefit alkali mode that mouthful continues to add alkali through dispensing, make OH
-Lasting source as hydroxyl radical free radical adds, and has increased the generation of hydroxyl radical free radical, reaches the OH that the accurate supplement consumed of timely correction is fallen
-Thereby, entire reaction can both be carried out under high pH condition, improved processing efficiency;
(3) reactor adopts enclosed system, press the dissolved efficiency that makes ozone to improve in can increasing, the water bottom with in the reactor body of ozone tail gas outlet feeding certain depth rationally increases the required pressure of exhaust, make the pressure in the reactor raise, thereby promote the dissolved efficiency of ozone; On the other hand, the ozone of becoming separated in flight can second stage employ, reaches the usefulness of saving cost and reducing greenhouse gas emission;
(4) reactor body of reactor adopts stainless steel, be provided with sour drip washing head at the top, incrustation scale on quartzy sleeve outer wall of the ultraviolet lamp of pickling regularly and the reactor wall, global design has efficiently, stable, durable feature, UV-light is installed by quartzy sleeve pipe submerged type, ultraviolet tube can be changed at any time in the reactor outside, reduced the operation easier of maintenance.Aeration head is selected for use anti-oxidant and the uniform pure titanium metal aeration head of aeration, and aeration rate is stable, and molten gas is remarkably productive.
In sum, it is strong that reactor in the embodiment of the invention has the refractory organic of processing ability, reaction is fast efficient, applied range is easy and simple to handle, stable effluent quality, non-secondary pollution and advantage such as easy to maintenance can be used as the advanced treatment reactor of micropollutant water or the pretreatment reaction device of high density organic pollution aquifer.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (8)
1, a kind of free radical deep oxidization reactor is characterized in that, this reactor comprises: reactor body, ultraviolet lamp and aerating apparatus; Wherein, reactor body is an encloses container, is respectively equipped with water-in, water outlet, dispensing mouth, ozone inlet mouth and tail gas outlet with the reactor body internal communication on the reactor body; Described ultraviolet lamp, aerating apparatus all are located in the reactor body, and ultraviolet lamp adopts the different middle pressure ultraviolet light of at least two group wavelength, and aerating apparatus is communicated with ozone inlet mouth on the reactor body.
2, reactor according to claim 1 is characterized in that, described dispensing mouth is arranged on separately on the reactor body sidewall.
3, reactor according to claim 1 is characterized in that, described dispensing mouth is arranged on the reactor body sidewall below the described water-in.
4, reactor according to claim 1, it is characterized in that described reactor body is the stainless steel vessel of square column type, its ratio high and base is 2.4: 1, be provided with base below the reactor body, the reactor body top is provided with the sealing cover by bolting.
5, reactor according to claim 1 is characterized in that, described aerating apparatus is the pure metallic titanium aeration head, is arranged on the bottom in the reactor body, and the aperture of aeration head is 0.45～1 micron.
6, reactor according to claim 1, it is characterized in that, described ultraviolet lamp adopts and presses the amalgam ultraviolet lamp in two groups, every group of ultraviolet lamp comprises at least presses the amalgam ultraviolet lamp in two, the wavelength of two groups of ultraviolet lamps is respectively 254nm and 185nm, and two groups of ultraviolet lamps all are installed in the reactor body by quartzy sleeve pipe submerged type from described reactor body top.
7, reactor according to claim 7 is characterized in that, the ratio of the height that slips into length and reactor body of described ultraviolet lamp is 1: 1.2.
8, according to claim 6 or 7 described reactors, it is characterized in that described reactor also comprises: be arranged on the reactor body inner top sour drip washing head corresponding with ultraviolet lamp, the inlet of described sour drip washing head is arranged on the reactor body outside.
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| CN101822937A (en) * | 2010-05-11 | 2010-09-08 | 武汉科技学院 | Method for synchronous desulfurization and denitrification of marine vessel exhaust |
| CN102336463A (en) * | 2010-07-16 | 2012-02-01 | 福建新大陆科技集团有限公司 | Photochemical high-grade oxidation fluid treating system |
| CN102432127A (en) * | 2011-10-26 | 2012-05-02 | 北京伊普国际水务有限公司 | Advanced treatment system and method for biochemically hardly degradable organic wastewater |
| CN102764626A (en) * | 2012-08-17 | 2012-11-07 | 上海应用技术学院 | Fastening structure for sealing portion of reaction kettle |
| CN103121733A (en) * | 2013-02-27 | 2013-05-29 | 上海大学 | Method for degrading organic pollutants in water by immersion ultraviolet light exposure |
| CN103723803A (en) * | 2013-12-19 | 2014-04-16 | 刘传林 | Method and device for disinfecting, detoxifying and purifying water by using hydroxyl radicals |
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| CN105293626A (en) * | 2015-11-20 | 2016-02-03 | 江苏合一水业有限公司 | Ultraviolet sewage processor |
| CN106145479A (en) * | 2016-07-29 | 2016-11-23 | 江苏融汇环境工程有限公司 | A kind of ozone and ultraviolet catalytic oxidation waste water automated processing system |
| CN111115749A (en) * | 2019-12-27 | 2020-05-08 | 南京工程学院 | Method for treating pesticide pollution of molinate in water |
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| DE10144510A1 (en) * | 2001-09-10 | 2003-04-03 | Wedeco Ag | Ozone / UV combination to break down endocrine substances |
| CN2538786Y (en) * | 2002-04-29 | 2003-03-05 | 天津通用水处理机械工程有限公司 | High-grade ozone-ultraviolet ray excitation photooxidation device |
| CN100391858C (en) * | 2002-11-27 | 2008-06-04 | 株式会社日本光电科技 | Ultraviolet ray device for treating liquid and method thereof |
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| CN2808883Y (en) * | 2005-03-07 | 2006-08-23 | 深圳市海川实业股份有限公司 | Ultraviolet and ozone united water treatment device |
| CN100369825C (en) * | 2006-03-31 | 2008-02-20 | 张俊华 | Amalgam ultraviolet disinfecting lamp |
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| CN101822937A (en) * | 2010-05-11 | 2010-09-08 | 武汉科技学院 | Method for synchronous desulfurization and denitrification of marine vessel exhaust |
| CN102336463B (en) * | 2010-07-16 | 2014-06-25 | 福建新大陆科技集团有限公司 | Photochemical high-grade oxidation fluid treating system |
| CN102336463A (en) * | 2010-07-16 | 2012-02-01 | 福建新大陆科技集团有限公司 | Photochemical high-grade oxidation fluid treating system |
| CN102432127A (en) * | 2011-10-26 | 2012-05-02 | 北京伊普国际水务有限公司 | Advanced treatment system and method for biochemically hardly degradable organic wastewater |
| CN102432127B (en) * | 2011-10-26 | 2014-02-26 | 北京伊普国际水务有限公司 | Advanced treatment system and method for biochemically hardly degradable organic wastewater |
| CN102764626A (en) * | 2012-08-17 | 2012-11-07 | 上海应用技术学院 | Fastening structure for sealing portion of reaction kettle |
| CN103121733A (en) * | 2013-02-27 | 2013-05-29 | 上海大学 | Method for degrading organic pollutants in water by immersion ultraviolet light exposure |
| CN103723803A (en) * | 2013-12-19 | 2014-04-16 | 刘传林 | Method and device for disinfecting, detoxifying and purifying water by using hydroxyl radicals |
| CN103723803B (en) * | 2013-12-19 | 2016-03-02 | 刘传林 | Use hydroxyl radical free radical to the method for water sterilization removing toxic substances purification and device thereof |
| CN104843824A (en) * | 2014-02-18 | 2015-08-19 | 邱玉冬 | Sewage foam photolysis processor |
| CN105293626A (en) * | 2015-11-20 | 2016-02-03 | 江苏合一水业有限公司 | Ultraviolet sewage processor |
| CN106145479A (en) * | 2016-07-29 | 2016-11-23 | 江苏融汇环境工程有限公司 | A kind of ozone and ultraviolet catalytic oxidation waste water automated processing system |
| CN111115749A (en) * | 2019-12-27 | 2020-05-08 | 南京工程学院 | Method for treating pesticide pollution of molinate in water |
| CN116924555A (en) * | 2023-09-15 | 2023-10-24 | 山东共达环保科技有限公司 | Micro-nano advanced oxidation mobile sewage treatment equipment |
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