CN101781052A - Closed ultrasonic-vaporization high-voltage corona oxidation method and equipment thereof - Google Patents
Closed ultrasonic-vaporization high-voltage corona oxidation method and equipment thereof Download PDFInfo
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- CN101781052A CN101781052A CN200910211473A CN200910211473A CN101781052A CN 101781052 A CN101781052 A CN 101781052A CN 200910211473 A CN200910211473 A CN 200910211473A CN 200910211473 A CN200910211473 A CN 200910211473A CN 101781052 A CN101781052 A CN 101781052A
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Abstract
The invention relates to a wastewater oxidation method, in particular to a closed ultrasonic-vaporization high-voltage corona method, which belongs to the technical field of wastewater oxidation. According to the technical scheme of the invention, closed ultrasonic-vaporization high-voltage corona equipment comprises a liquid inlet pump and an ultrasonic vaporizer, wherein the liquid inlet pump is used for pumping wastewater samples; the liquid outlet end of the liquid inlet pump is connected with the ultrasonic vaporizer by a liquid inlet valve and a flow meter; the ultrasonic vaporizer is communicated with a high-voltage corona reaction chamber; a recycle pump is also arranged between the ultrasonic vaporizer and the high-voltage corona reaction chamber; the liquid outlet end of the recycle pump is connected with the ultrasonic vaporizer; and the ultrasonic vaporizer releases the oxidized and digested wastewater through a liquid outlet pump and a liquid outlet valve. The closed ultrasonic-vaporization high-voltage corona method has the advantages of convenient operation, simple equipment, simple technical process, low cost and high suitability.
Description
Technical field
The present invention relates to a kind of wastewater oxidation method, especially a kind of closed ultrasonic-vaporization high-voltage corona oxidation method and equipment thereof belong to the technical field of wastewater oxidation.
Background technology
Present detection to substances content such as nitrogen phosphorus in the waste water, the following method of main employing: at first select certain method for oxidation for use, organism is cleared up, and the elemental oxygen to be detected of various valence states in the waste water changed into unified maxivalence attitude form, adopt ultraviolet spectrophotometers or electrochemical sensor to detect test substance content to various element ions then.
Wherein, mainly contain following two kinds of methods at present to the method for oxidation of waste water to be measured:
1. add the oxygenant method
Traditional wastewater oxidation method adopts the method for adding certain corresponding oxygenant.
(1) Potassium Persulphate method
Mensuration for total nitrogen in the waste water, the mensuration alkalescence alkaline potassium per-sulfate digestion ultraviolet spectrophotometry of National Standard water quality total nitrogen " (GB 11894-89) middle regulation, under 120 ℃～124 ℃ alkaline medium condition, make oxygenant with Potassium Persulphate, not only ammonia nitrogen in the water sample and nitrite nitrogen can be oxidized to nitrate, simultaneously most of organic nitrogen compound in the water sample be oxidized to nitrate.This method needs mass consumption Potassium Persulphate reagent, the storage of reagent is used be difficult to control, complicated operation, inefficiency.
(2) ozone oxidation method
Ozone is a kind of strong oxidizer, and oxidation potential is 2.07V, and is fast with the organism speed of response.Ozone is sneaked in the water by aeration or effusive method, can react with the pollution substance that various forms in the water exist, and the organism of complexity is transformed into simple compounds, and progressively with the lower valency ionic oxide formation to high valence state form.Usually the ozone of ozonizer generation can be mixed with oxynitrides, can't be used for water quality nitrogen element and detect.Simultaneously, the aeration of ozone and jet all have higher requirement to the pressure and the flow velocity of waste water, are difficult to be applicable to the scene detection of small amount of sample.
(3) hydrogen peroxide method
Hydrogen peroxide is a kind of colourless heavy-gravity liquid, and its aqueous solution is commonly called as hydrogen peroxide, also is strong oxidizer commonly used in the water treatment, and oxidation potential is 1.77V, the inorganic and organic pollutant in the energy oxidizing water.The hydrogen peroxide unstable chemcial property is generally deposited with 30% or 60% aqueous solution 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 electrolytic ultimate principle, make objectionable impurities in the waste water transform into the method for innoxious substance to realize purifying by electrolysis.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 a large amount of waste water, and isolating throw out is difficult for processing and utilizing.Also can in solution, produce metallic cation simultaneously and disturb, not be suitable for water quality detection.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of closed ultrasonic-vaporization high-voltage corona oxidation method and equipment thereof are provided, it is easy to operate, and equipment is simple, and technical process is simplified, and with low cost, suitability is good.
According to technical scheme provided by the invention, described method for oxidation comprises the steps: a, utilizes liquid feeding pump, feed liquor valve and under meter, pours into the waste water water sample of 30ml～60ml in ultrasonic atomizer; B, unlatching ultrasonic atomizer; Described ultrasonic atomizer applies the ultrasonic wave of 1.6MHz～2.5MHz to the waste water water sample, and the waste water water sample absorbs energy, and molecular kinetic energy increases, and the waste water water sample is excited to vaporific; C, unlatching high-voltage corona reaction chamber and recycle pump; Waste water fog in the ultrasonic atomizer under the effect of the diffusion of fog and recycle pump suction, enters in the high-voltage corona reaction chamber; The high-voltage corona reaction chamber applies the voltage effect of 15000～30000V to waste water fog, opens the molecular chain and the connecting key of waste water fog, and produces the strong oxidizing property free radical, waste water fog is carried out oxidation clear up; D, utilize the suction function of recycle pump, waste water fog was circulated 3～6 minutes in ultrasonic atomizer and high-voltage corona reaction chamber, waste water fog is carried out abundant oxidation clear up; E, open out water pump and liquid-outlet valve; By going out water pump and liquid-outlet valve, discharge the waste water fog in ultrasonic atomizer and the high-voltage corona reaction chamber, obtain oxidation and clear up the waste water water sample of finishing.
The closed ultrasonic-vaporization high-voltage corona equipment that described method for oxidation is used comprises liquid feeding pump and ultrasonic atomizer; Described liquid feeding pump is used to extract the waste water water sample, and the outlet end of liquid feeding pump links to each other with ultrasonic atomizer by feed liquor valve and under meter; Described ultrasonic atomizer is connected with the high-voltage corona reaction chamber, described ultrasonic atomizer and high-voltage corona reacting chamber space also are provided with recycle pump, the outlet end of described recycle pump is connected with ultrasonic atomizer, the waste water water sample after described ultrasonic atomizer is cleared up by Pump for giving-out and liquid-outlet valve release oxidation.
Described ultrasonic atomizer is connected by Glass tubing with the high-voltage corona reaction chamber.Ultrasonic frequency in the described ultrasonic atomizer is 1.6MHz～2.5MHz.Described high-voltage corona reaction chamber comprises glass piping and high direct voltage bag power supply, the end of described glass piping is provided with groove, be placed with stainless steel in the groove, the external packets of described glass piping is wrapped with copper wire gauze, and the positive pole of described high direct voltage bag power supply, negative pole end link to each other with stainless steel and copper wire gauze respectively.
The output voltage of described high direct voltage bag power supply is 15000～30000V.
Advantage of the present invention: speed of response is fast, the reaction efficiency height, and atomizing back waste water water sample can be oxidized rapidly under the high-voltage corona effect.Reaction process is carried out in airtight pipeline, and atomization process and high-voltage corona process all do not have loss, also can not mix introduced contaminants elements such as air simultaneously, helps the on-the-spot accuracy that detects of water quality; Do not use chemical reagent such as catalyzer, oxygenant, avoided using or produced energy consumption and pollution problem in these chemical reagent processes; Use the equipment volume of this method for oxidation small and exquisite, easy and simple to handle, running cost is cheap; Auxiliary automatic control means can realize automatic sampling and go out sample, simultaneously environment for use are not had particular requirement, can be convenient to use in water quality is on-the-spot to detect.
Description of drawings
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is the structural representation of high-voltage corona reaction chamber of the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in Figure 1: the present invention includes liquid feeding pump 2, feed liquor valve 3, under meter 4, ultrasonic atomizer 5, high-voltage corona reaction chamber 6, recycle pump 7, Pump for giving-out 8 and liquid-outlet valve 9.
As shown in Figure 1: described liquid feeding pump 2 is used to extract waste water water sample 1, and the waste water water sample 1 that liquid feeding pump 2 extracts enters in the ultrasonic atomizer 5 by feed liquor valve 3 and under meter 4.Enter the waste water water sample 1 in the ultrasonic atomizer 5, under hyperacoustic cavitation of 1.6MHz～2.5MHz and incentive action, molecular kinetic energy increases, and becomes vaporificly, and waste water water sample 1 absorbs ultrasonic energy simultaneously, becomes activation excited state.
Described ultrasonic atomizer 5 links to each other with high-voltage corona reaction chamber 6 by glass piping, and the waste water fog in the ultrasonic atomizer 5 utilizes the diffusion of waste water fog and the suction function of recycle pump 7 to enter in the high-voltage corona reaction chamber 6; Waste water fog in ultrasonic atomizer 5 and the high-voltage corona reaction chamber 6 utilizes recycle pump 7 to circulate, and guarantees that the abundant oxidation of waste water water sample 1 is cleared up.Waste water water sample 1 is after fully oxidation is cleared up in ultrasonic atomizer 5 and high-voltage corona reaction chamber 6, discharges waste water water sample 10 after oxidations are finished by Pump for giving-out 8 and liquid-outlet valve 9.
Described ultrasonic atomizer 5 adopts commercially available medical ultrasonic spraying gun, its main technical details: voltage rating: 220V ± 10%; Rated frequency: 50Hz; Rated input power:＜35w ultrasonic frequency: 1.7MHZ; Atomization quantity: 4ml/min; Mist particle diameter: 0.5-5 μ m.Ultrasonic atomizer 5 produces ultrasonic wave by electronic oscillating circuit by wafer, utilizes hyperacoustic cavitation and incentive action to be excited into the waste water water sample vaporific.
As shown in Figure 2: described high-voltage corona reaction chamber 6 comprises described glass piping 15 and high direct voltage bag power supply 11; The end of described glass piping 15 is provided with groove 13, is placed with stainless steel 12 in the groove 13, and the external packets of described glass piping 15 is wrapped with copper wire gauze 14, and the positive pole of described high direct voltage bag power supply 11, negative pole end link to each other with stainless steel 12 and copper wire gauze 14 respectively.As anodal, copper wire gauze 14 carries out the high-voltage corona effect as power cathode to the waste water fog in the glass piping 15 to described high direct voltage bag power supply 11 by stainless steel 12.
High-voltage corona reaction chamber 6 provides energy for waste water fog, and waste water fog absorbs the energy of high-voltage electric field, opens molecular chain and connecting key between organism and the macromolecular mass, makes organism and macromole become small molecules, helps clearing up oxidation.Water molecules produces the hydroxyl radical free radical (OH) of strong oxidizing property under the effect of high-voltage corona, the electrochemical reaction formula of water molecules under the high-voltage corona effect is: H
2O* → OH+H; H wherein
2O* is the excited state water molecules after the absorption electric field energy.
Described method for oxidation comprises the steps:
A, utilize liquid feeding pump 2, feed liquor valve 3 and under meter 4, in ultrasonic atomizer 5, pour into the waste water water sample 1 of 30ml～60ml;
B, unlatching ultrasonic atomizer 5; 5 pairs of waste water water samples 1 of described ultrasonic atomizer apply the ultrasonic wave of 1.6MHz～2.5MHz, and waste water water sample 1 absorbs energy, and molecular kinetic energy increases, and waste water water sample 1 is excited to vaporific;
C, unlatching high-voltage corona reaction chamber 6 and recycle pump 7; Waste water fog in the ultrasonic atomizer 5 under the effect of the diffusion of fog and recycle pump 7 suctions, enters in the high-voltage corona reaction chamber 6; 6 pairs of waste water fogs of high-voltage corona reaction chamber apply the voltage effect of 15000～30000V, open the molecular chain and the connecting key of waste water fog, and produce the strong oxidizing property free radical, waste water fog is carried out oxidation clear up;
D, utilize the suction function of recycle pump 7, waste water fog was circulated 3～6 minutes in ultrasonic atomizer 5 and high-voltage corona reaction chamber 6, waste water fog is carried out abundant oxidation clear up;
E, open out water pump 8 and liquid-outlet valve 9; By going out water pump 8 and liquid-outlet valve 9, discharge the waste water fog in ultrasonic atomizer 5 and the high-voltage corona reaction chamber 6, obtain oxidation and clear up the waste water of finishing 10.
As depicted in figs. 1 and 2: after waste water water sample 1 enters ultrasonic atomizer 5 and high-voltage corona reaction chamber 6, all be under airtight environment, to carry out oxidation to clear up, waste water water sample 1 in atomization process and high-voltage corona process all less than consuming, simultaneously can not mix impurity element yet, help the on-the-spot accuracy that detects of water quality.Whole process is not used chemical reagent such as catalyzer, oxygenant, has avoided consumption and the pollution in the oxidising process.Carry out high-voltage corona and do the time spent in high-voltage corona reaction chamber 6, the positive and negative electrode of high direct voltage bag power supply 11 does not all contact with waste water fog, has avoided the interference of impurity element.In the whole oxidising process, speed of response is fast, and the reaction efficiency height uses no particular surroundings requirement to equipment, convenient detection to the water quality scene.
Claims (6)
1. a closed ultrasonic-vaporization high-voltage corona oxidation method is characterized in that, described method for oxidation comprises the steps:
A, utilize liquid feeding pump (2), feed liquor valve (3) and under meter (4), in ultrasonic atomizer (5), pour into the waste water water sample (1) of 30ml～60ml;
B, unlatching ultrasonic atomizer (5); Described ultrasonic atomizer (5) applies the ultrasonic wave of 1.6MHz～2.5MHz to waste water water sample (1), and waste water water sample (1) absorbs energy, and molecular kinetic energy increases, and waste water water sample (1) is excited to vaporific;
C, unlatching high-voltage corona reaction chamber (6) and recycle pump (7); Waste water fog in the ultrasonic atomizer (5) under the effect of the diffusion of fog and recycle pump (7) suction, enters in the high-voltage corona reaction chamber (6); High-voltage corona reaction chamber (6) applies the voltage effect of 15000～30000V to waste water fog, opens the molecular chain and the connecting key of waste water fog, and produces the strong oxidizing property free radical, waste water fog is carried out oxidation clear up;
D, utilize the suction function of recycle pump (7), waste water fog was circulated 3～6 minutes in ultrasonic atomizer (5) and high-voltage corona reaction chamber (6), waste water fog is carried out abundant oxidation clear up;
E, open out water pump (8) and liquid-outlet valve (9); By going out water pump (8) and liquid-outlet valve (9), discharge ultrasonic atomizer (5) and the interior waste water fog of high-voltage corona reaction chamber (6), obtain oxidation and clear up the waste water water sample of finishing (10).
2. closed ultrasonic-vaporization high-voltage corona equipment that the described method for oxidation of claim 1 is used, comprise liquid feeding pump (2) and ultrasonic atomizer (5), it is characterized in that: described liquid feeding pump (2) is used to extract waste water water sample (1), and the outlet end of liquid feeding pump (2) links to each other with ultrasonic atomizer (5) by feed liquor valve (3) and under meter (4); Described ultrasonic atomizer (5) is connected with high-voltage corona reaction chamber (6), also be provided with recycle pump (7) between described ultrasonic atomizer (5) and high-voltage corona reaction chamber (6), the outlet end of described recycle pump (7) is connected with ultrasonic atomizer (5), the waste water water sample (10) after described ultrasonic atomizer (5) is cleared up by Pump for giving-out (8) and liquid-outlet valve (9) release oxidation.
3. closed ultrasonic-vaporization high-voltage corona equipment according to claim 2 is characterized in that: described ultrasonic atomizer (5) is connected by Glass tubing (16) with high-voltage corona reaction chamber (6).
4. closed ultrasonic-vaporization high-voltage corona equipment according to claim 2 is characterized in that: the ultrasonic frequency in the described ultrasonic atomizer is 1.6MHz～2.5MHz.
5. closed ultrasonic-vaporization high-voltage corona equipment according to claim 2, it is characterized in that: described high-voltage corona reaction chamber comprises glass piping (15) and high direct voltage bag power supply (11), the end of described glass piping (15) is provided with groove (13), be placed with stainless steel (12) in the groove (13), the external packets of described glass piping (15) is wrapped with copper wire gauze (14), and the positive pole of described high direct voltage bag power supply (11), negative pole end link to each other with stainless steel (12) and copper wire gauze (14) respectively.
6. closed ultrasonic-vaporization high-voltage corona equipment according to claim 5 is characterized in that: the output voltage of described high direct voltage bag power supply (11) is 15000～30000V.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915686A (en) * | 2010-07-09 | 2010-12-15 | 江南大学 | Ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device |
| CN101956417A (en) * | 2010-08-11 | 2011-01-26 | 国家海洋局第二海洋研究所 | Foam plugging type microbial decomposition water circulating environmental protection toilet for islands |
| CN103241806A (en) * | 2013-05-27 | 2013-08-14 | 苏州科技学院 | Method for treating organic wastewater through high-frequency and high-voltage discharge and reactor thereof |
-
2009
- 2009-11-12 CN CN2009102114735A patent/CN101781052B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915686A (en) * | 2010-07-09 | 2010-12-15 | 江南大学 | Ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device |
| CN101915686B (en) * | 2010-07-09 | 2012-06-20 | 江南大学 | Ultrasonic atomization high-voltage discharging and ozone-ultraviolet combined oxidization digestion device |
| CN101956417A (en) * | 2010-08-11 | 2011-01-26 | 国家海洋局第二海洋研究所 | Foam plugging type microbial decomposition water circulating environmental protection toilet for islands |
| CN103241806A (en) * | 2013-05-27 | 2013-08-14 | 苏州科技学院 | Method for treating organic wastewater through high-frequency and high-voltage discharge and reactor thereof |
| CN103241806B (en) * | 2013-05-27 | 2015-06-24 | 苏州科技学院 | Method for treating organic wastewater through high-frequency and high-voltage discharge and reactor thereof |
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