CN101915686B - Ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device - Google Patents
Ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device Download PDFInfo
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- CN101915686B CN101915686B CN2010102274012A CN201010227401A CN101915686B CN 101915686 B CN101915686 B CN 101915686B CN 2010102274012 A CN2010102274012 A CN 2010102274012A CN 201010227401 A CN201010227401 A CN 201010227401A CN 101915686 B CN101915686 B CN 101915686B
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Abstract
The invention provides an ultraviolet atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device, comprising an ultrasonic atomization reaction chamber, a high voltage discharging reaction chamber, an ozone generator and three quartz spiral tubes internally provided with ultraviolet lamps, which are connected with each other through a peristaltic pump, a circulating air pump and pipelines. The method gets rid of shortcomings of the traditional analysis method of a laboratory without consuming chemical oxidizing agents, thereby having the advantages of convenient operation, simple and smart apparatus, simplified process and low cost, and realizing on-line continuous oxidization digestion, and being particularly suitable for water treatment of environmental water quality in an on-line continuous detection system.
Description
Technical field
The present invention relates to a kind of water sample oxidization digestion device that is used for monitoring water quality on line, especially a kind of ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device.
Background technology
Lake, reservoir water body eutrophication are on the rise, and be closely related with the content of nitrogen, phosphorus in the water body.The too high levels of nitrogen, phosphorus in the water body can cause unusual breeding and the growth of various hydrophyte, and extensive blue algae bloom incident all once took place on ground such as Taihu Lake, Chaohu.
Present detection to content of material such as nitrogen phosphorus in the water sample; The main method that adopts the laboratory manual analysis: at first select certain oxidizing digestion method for use; Clear up organism; And change into unified highest price attitude form to the elemental oxygen to be detected of various valence states in the water sample, and utilize the difference of various element ions then to the ultra-violet absorption spectrum characteristic, go out test substance content with UV spectrophotometer measuring.Wherein, mainly contain following two kinds of methods at present to the oxidizing digestion method of water sample:
1. add the oxygenant method
(1) adds the potassium persulfate method
Mensuration for total nitrogen in the water sample; Regulation in the national standard (GB 11894-89) " the mensuration alkalescence alkaline potassium per-sulfate digestion ultraviolet spectrophotometry of water quality total nitrogen " (GB 11894-89); Under 120 ℃-124 ℃ alkaline medium condition; Make oxygenant with potassium persulfate, not only can ammonia nitrogen in the water sample and nitrite nitrogen be oxidized to nitrate, simultaneously most of organonitrogen compound in the water sample is oxidized to nitrate.This method needs lot of consumption potassium persulfate reagent, the storage of reagent is used be difficult to control, complicated operation, inefficiency.
(2) add the ozone method
Ozone is a kind of strong oxidizer, and oxidation potential is 2.07V, and is fast with the organism reaction velocity.Ozone mixes with water sample through the method for aeration or jet, can react with the polluter of various forms existence in the water, the organism of complicacy is transformed into simple compounds, and progressively the lower valency ionic oxide formation is arrived high valence state form.The solubleness of ozone in water is lower, is difficult to give full play to oxidation and clears up effect.Usually the ozone that used effluve formula ozone generator produces can be mixed with oxynitrides, can't be used for water quality nitrogen element and detect.
(3) add hydrogen peroxide method
Hydrogen peroxide is a kind of colourless sticky liquid, and its WS is commonly called as oxydol, also is strong oxidizer commonly used in the water treatment, and oxidation potential is 1.77V, the inorganic and organic contaminant in the ability oxidize water.The hydrogen peroxide unstable chemcial property is generally deposited with 30% or 60% WS form, and the storage of hydrogen peroxide and use all are not easy control, is difficult to be applicable to on-the-spot the detection.
2. electrolytic oxidation method
The wastewater electrolytic facture is a kind of of waste water method of chemical treatment.Use the ultimate principle of electrolysis, make that objectionable impurities transforms into the method for innoxious substance to realize purifying through electrolysis in the water sample.Wastewater electrolytic is handled and to be comprised electrode surface electrochemical action, indirect oxidation and indirect reduction, and process such as electricity flocculation, respectively with different effect removal pollutants in waste water.Shortcoming is that the consumption of power consumption and electrode metal is bigger when handling great amount of wastewater, and the sediment of separation is difficult for processing and utilizing.Also can in solution, produce metal cation simultaneously and disturb, be difficult to be applicable to water quality detection.
In recent years, some novel water quality analysis checkout equipments that adopt automatic technology to manufacture and design also occurred, they only are the means that on traditional lab analysis method, added robotization; Like auto injection, automatic sampling analysis etc., but the core of these equipment remains traditional laboratory method; Need regularly to add chemical reagent, and be subject to disturb poor stability; Can not really break away from manual work, the oxidation of realization real-time online is cleared up.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art; A kind of ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device is provided; Be specially adapted to the water treatment in the ambient water quality on-line continuous detection system, adopt a kind of ultrasonic atomization, high-voltage corona and ozone, the symphyogenetic method for oxidation of ultraviolet.
According to technical scheme provided by the invention; Said ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device comprises: the ultrasonic atomization reaction chamber; Second uviol lamp is fixed in the outside of ultrasonic atomization reaction chamber; The water inlet of ultrasonic atomization reaction chamber connects the second wriggling delivery side of pump; The air intake opening of ultrasonic atomization reaction chamber connects the gas outlet of circulation air pump, and the fog outlet of ultrasonic atomization reaction chamber is connected to the last end entrance of the second quartzy spiral pipe, and the lower end outlet of the second quartzy spiral pipe is connected to the water sample import of effluve reaction chamber; The gas vent of effluve reaction chamber utilizes three-port structure to be connected to the air intake opening and the first quartzy spiral pipe lower ending opening of circulation air pump; The first quartzy spiral pipe lower ending opening also is connected to second peristaltic pump simultaneously, and the open upper end of the first quartzy spiral pipe is used to inject water sample and discharges tail gas, and the spiral central authorities of the first quartzy spiral pipe are fixed in the suspension of first uviol lamp; The outlet of the water sample of effluve reaction chamber is connected to the open upper end of the 3rd quartzy spiral pipe, the lower end outlet of the 3rd quartzy spiral pipe be connected to ozone generator output terminal and through the 3rd peristaltic pump derive oxidation clear up accomplish after water sample.
Said ultrasonic atomization reaction chamber comprises quartz glass reactor, the quartz glass reactor lower end connect atomising head and and the atomizing piece of atomising head between seal.
Said atomising head vibration frequency 1.65MHz, atomization quantity: 300-350ml/H.The atomizing piece diameter 20mm of atomising head.
The open upper end of the said first quartzy spiral pipe connects the water sample that injects through first peristaltic pump.
Said circulation air pump internal duct is coated with silicon rubber.
Said effluve reaction chamber comprises: glass tube vertically is nested in up and down in the middle of two fluoroplastic sleeves; One section stainless-steel tube is inserted at the two ends up and down of glass tube respectively; Two sections stainless-steel tubes connect the high-voltage power supply both positive and negative polarity respectively, two sections stainless-steel tube part spacing 1cm in glass tube, and the upper end of last stainless-steel tube is the water sample import; The lower end of following stainless-steel tube is the water sample outlet, and glass bushing upper end sidewall is provided with gas vent.Two sections high-voltage power supplies that stainless-steel tube connects are direct current 12KV.
The said first quartzy spiral pipe, the second quartzy spiral pipe, the 3rd quartzy spiral pipe are that total transmissivity ultraviolet ray quartz material is processed, bore 8-10mm, external diameter 10-12mm, screw diameter 40-50mm, pipe range 240-260mm, total spiral 15-18 circle.
The ozone output of said ozone generator is 700mg/H, and the gaseous mass specific concentration is 20%.
Advantage of the present invention is: this method has been broken away from the shortcoming of laboratory traditional analysis method; Need not to consume chemical oxidizing agent, easy to operate, equipment is simply small and exquisite; Technological process is simplified; Cost is low, has realized that the on-line continuous oxidation clears up, and is specially adapted to the water treatment in the ambient water quality on-line continuous detection system.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a ultrasonic atomization reaction chamber structure synoptic diagram.
Fig. 3 is effluve reaction chamber structure figure.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
As shown in Figure 1: as to the present invention includes: first peristaltic pump 2 is connected to the open upper end of the first quartzy spiral pipe 3 through silica gel hose, is used for injecting waiting to clear up water sample 1, and the open upper end of quartzy spiral pipe 3 is used to discharge tail gas 15 simultaneously.The spiral central authorities that the first quartzy spiral pipe 3 is fixed in 4 suspensions of first uviol lamp.First quartzy spiral pipe 3 lower ending openings utilize a three-port structure to be connected to the gas vent 26 of second peristaltic pump 5 and effluve reaction chamber 9 respectively with silicone tube.The outlet silica gel hose of second peristaltic pump 5 is connected to the water inlet 19 of ultrasonic atomization reaction chamber 6.Fog outlet 21 on the ultrasonic atomization reaction chamber 6 is connected to the last end entrance of the second quartzy spiral pipe 8 through silicone tube.Second uviol lamp 7 is fixed in the outside of ultrasonic atomization reaction chamber 6.The lower end outlet of the second quartzy spiral pipe 8 is connected to the water sample import 22 on the effluve reaction chamber 9.The gas vent 26 of effluve reaction chamber 9 utilizes three-port structure to be connected to the air intake opening of circulation air pump 13.The gas outlet of circulation air pump 13 is connected to the air intake opening 20 of ultrasonic atomization reaction chamber 6.The water sample outlet 27 of effluve reaction chamber 9 is connected to the open upper end of the 3rd quartzy spiral pipe 10.The lower end outlet of the 3rd quartzy spiral pipe 10 is connected to ozone generator 12 and the 3rd peristaltic pump 11 respectively with threeway, water sample 14 after the derivation oxidation is cleared up and accomplished.Specify as follows:
1. quartzy spiral pipe 3,8,10 is processed for total transmissivity ultraviolet ray quartz material, bore 8-10mm, external diameter 10-12mm, screw diameter 40-50mm, long 240-260mm, total spiral 15-18 circle.
2. uviol lamp 4,7 is the single-ended straight type uviol lamp of 14W.
3. peristaltic pump 2,5,11 is the peristaltic pump of 0～30ml/min adjustable speed, and flow velocity is set at 1ml/min.
4. ultrasonic atomization reaction chamber 6 is processed for total transmissivity ultraviolet ray quartz material, has three openings.As shown in Figure 2, quartz glass reactor 16 has water inlet 19, air intake opening 20, fog outlet 21, the lower end of quartz glass reactor 16 connect atomising head and and atomizing piece 17 (transducer) between sealing, the bases 18 below the atomizing piece 17 include oscillatory circuit.The ultrasonic atomization head that uses is that commercially available humidifier is used the atomising head transformation, parameter 24V AC, 480-550mA, vibration frequency 1.65MHz, atomization quantity: 300-350ml/H, the atomizing piece (transducer) of use 20mm diameter.
5. effluve reaction chamber 9 comprises that the high voltage withstanding glass tube 25 of the about 5-8cm of a segment length, caliber 10-12cm is nested in two cylindrical fluoroplastic sleeve 24 centres up and down; Two ends are inserted one section stainless-steel tube 23 respectively as sparking electrode up and down; 2 sections stainless-steel tube part spacing 1cm in glass tube 25; Stainless-steel tube upper end be water sample import 22, and the stainless-steel tube lower end is that water sample exports 27, from glass bushing 25 upper side openings as gas vent 26.Two sections stainless-steel tubes (23) connect the high-voltage power supply both positive and negative polarity respectively, and used high-voltage power supply is direct current 12KV.
6. ozone generator 12 adopts PEM electrolysis pure water formula ozone generator, and ozone output is 700mg/H, and concentration is 20% (gaseous mass ratio).
7. circulation air pump 13 adopts commercially available common fish jar oxygenation to use air pump, and its internal duct is coated with silicon rubber, improves its anti-ozone oxidation performance; Power 3.5W, air output is about 1.2 liters of per minutes.
The course of work is following: waited to clear up water sample 1 before getting into ultrasonic atomization reaction chamber 6; Earlier through the first quartzy spiral pipe 3; Water sample gets into via the upper end of first peristaltic pump 2 from the first quartzy spiral pipe 3, forms convection current with the system's tail gas that gets into from the lower end 15, absorbs residual ozone in system's tail gas once more; Accept 4 irradiations of first uviol lamp simultaneously, accomplish pre-service.Pretreated water sample is squeezed into ultrasonic atomization reaction chamber 6 by second peristaltic pump 5 again, and this reaction chamber is a quartz glass structure, adds 7 irradiations of second uviol lamp.Water sample is provoked into water smoke at the ultrasonic atomization reaction chamber, fully contacts with ozone gas, under the irradiation of uviol lamp, is cleared up by abundant oxidation simultaneously.With circulation air pump 13 water smoke and ozone amalgam are pushed the second quartzy spiral pipe 8 and react, fully accept ultraviolet lighting, accelerated reaction.Get into effluve reaction chamber 9 again, under the effect of effluve, water is gentle to be separated.Gas excites generation ozone once more via effluve, gets back to ultrasonic atomization reaction chamber participation oxidation through circulation air pump 13 and clears up reaction.After water sample excites through effluve; Getting into the 3rd quartzy spiral pipe 10 reacts; The high-concentrated ozone gas that in the 3rd quartzy spiral pipe 10, generates with electrolysis pure water formula ozone generator 12 forms convection current, and oxidizing process is accomplished in fully contact under the irradiation of uviol lamp; Draw via the 3rd peristaltic pump 11, be the water sample 14 after completion is cleared up in oxidation.
Advantage of the present invention is:
1. need not to add chemical oxidizing agent, only need electric energy and pure water just can realize that continuous on-line oxidation clears up.
2. reaction velocity is fast, and reaction efficiency is high, mixes with ozone gas fully through the water sample behind the ultrasonic atomization, can be oxidized rapidly under the irradiation of ultraviolet light.
3. adopt the pure water electrolysis type ozone generator, ozone concentration is high, also can not mix airborne impurity elements such as nitrogen simultaneously, helps the on-the-spot accuracy that detects of water quality;
4. adopt quartzy spiral pipe reactor, the uv transmittance of quartz glass is high, and ozone gas and water sample form convection current, full contact, and oxidation is fast and efficiently cleared up under the irradiation of ultraviolet light.
5. adopt the effluve technology, the oxygen that in airtight environment, generates after with ozone reaction is excited into ozone once more, reuses its oxidation susceptibility, and is simultaneously that water is gentle separately, is convenient to flowing of water sample;
6. use the equipment volume of this method for oxidation small and exquisite, easy and simple to handle, the manpower-free safeguards that operating cost is cheap;
7. auxiliary automatic control means can realize auto injection and go out appearance, simultaneously environment for use are not had specific (special) requirements, can be convenient to use in water quality is on-the-spot to detect.
Claims (10)
1. ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device; It is characterized in that: comprise ultrasonic atomization reaction chamber (6); Second uviol lamp (7) is fixed in the outside of ultrasonic atomization reaction chamber (6); The water inlet (19) of ultrasonic atomization reaction chamber (6) connects the outlet of second peristaltic pump (5); The air intake opening (20) of ultrasonic atomization reaction chamber (6) connects the gas outlet of circulation air pump (13); The fog outlet (21) of ultrasonic atomization reaction chamber (6) is connected to the last end entrance of the second quartzy spiral pipe (8); The lower end outlet of the second quartzy spiral pipe (8) is connected to the water sample import (22) of effluve reaction chamber (9), and the gas vent (26) of effluve reaction chamber (9) utilizes three-port structure to be connected to the air intake opening and first quartzy spiral pipe (3) lower ending opening of circulation air pump (13), and first quartzy spiral pipe (3) lower ending opening also is connected to second peristaltic pump (5) simultaneously; The open upper end of the first quartzy spiral pipe (3) is used to inject water sample (1) and discharges tail gas (15); The spiral central authorities of the first quartzy spiral pipe (3) are fixed in first uviol lamp (4) suspension, and the water sample outlet (27) of effluve reaction chamber (9) is connected to the open upper end of the 3rd quartzy spiral pipe (10), and the lower end outlet of the 3rd quartzy spiral pipe (10) is connected to the output terminal of ozone generator (12) and derives oxidation through the 3rd peristaltic pump (11) and clear up water sample (14) after the completion.
2. ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device as claimed in claim 1; It is characterized in that said ultrasonic atomization reaction chamber (6) comprises quartz glass reactor (16), quartz glass reactor (16) lower end connect atomising head and and the atomizing piece (17) of atomising head between sealing.
3. ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device as claimed in claim 2 is characterized in that said atomising head vibration frequency 1.65MHz, atomization quantity: 300-350ml/H.
4. ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device as claimed in claim 3 is characterized in that atomizing piece (17) the diameter 20mm of said atomising head.
5. ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device as claimed in claim 1 is characterized in that the open upper end of the said first quartzy spiral pipe (3) connects the water sample (1) that injects through first peristaltic pump (2).
6. ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device as claimed in claim 1 is characterized in that said circulation air pump (13) internal duct is coated with silicon rubber.
7. ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device as claimed in claim 1; It is characterized in that said effluve reaction chamber (9) comprising: two fluoroplastic sleeves (24) were middle about glass tube (25) vertically was nested in; One section stainless-steel tube (23) is inserted at the two ends up and down of glass tube (25) respectively; Two sections stainless-steel tubes (23) connect the high-voltage power supply both positive and negative polarity respectively, the part spacing 1cm of two sections stainless-steel tubes (23) in glass tube (25), and the upper end of last stainless-steel tube is water sample import (22); The lower end of following stainless-steel tube is water sample outlet (27), and glass bushing (25) upper end sidewall is provided with gas vent (26).
8. ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device as claimed in claim 7 is characterized in that said two sections stainless-steel tubes (23) high-voltage power supply that connects is direct current 12KV.
9. ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device as claimed in claim 1; It is characterized in that the said first quartzy spiral pipe (3), the second quartzy spiral pipe (8), the 3rd quartzy spiral pipe (10) are that total transmissivity ultraviolet ray quartz material is processed; Bore 8-10mm, external diameter 10-12mm, screw diameter 40-50mm; Pipe range 240260mm, total spiral 15-18 circle.
10. ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device as claimed in claim 1, the ozone output that it is characterized in that said ozone generator (12) is 700mg/H, the gaseous mass specific concentration is 20%.
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| CN1535249A (en) * | 2001-03-28 | 2004-10-06 | ��ʿͨ��ʽ���� | Method and device for decomposing environmental pollutants |
| CN1704356A (en) * | 2004-05-25 | 2005-12-07 | 曹国俊 | Sewage counteraction and sterilization system |
| CN101781052A (en) * | 2009-11-12 | 2010-07-21 | 江南大学 | Closed ultrasonic-vaporization high-voltage corona oxidation method and equipment thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB0119543D0 (en) * | 2001-08-10 | 2001-10-03 | Analytical Sciences Ltd | Method of and apparatus for use in the digestion of liquid samples |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5976384A (en) * | 1997-04-28 | 1999-11-02 | Campbell; Bryan A. | Process for treating waste water |
| CN1535249A (en) * | 2001-03-28 | 2004-10-06 | ��ʿͨ��ʽ���� | Method and device for decomposing environmental pollutants |
| CN1704356A (en) * | 2004-05-25 | 2005-12-07 | 曹国俊 | Sewage counteraction and sterilization system |
| CN101781052A (en) * | 2009-11-12 | 2010-07-21 | 江南大学 | Closed ultrasonic-vaporization high-voltage corona oxidation method and equipment thereof |
Non-Patent Citations (1)
| Title |
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| 王爱莲等.微波消解紫外分光光度法测定水中总氮.《甘肃科技》.2009,第25卷(第20期),73-75，84. * |
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