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CN103241806B - Method for treating organic wastewater through high-frequency and high-voltage discharge and reactor thereof - Google Patents

Method for treating organic wastewater through high-frequency and high-voltage discharge and reactor thereof Download PDF

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CN103241806B
CN103241806B CN201310200698.7A CN201310200698A CN103241806B CN 103241806 B CN103241806 B CN 103241806B CN 201310200698 A CN201310200698 A CN 201310200698A CN 103241806 B CN103241806 B CN 103241806B
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organic wastewater
reactor
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CN103241806A (en
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田永静
汤武
汤云帆
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Suzhou University of Science and Technology
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Abstract

本发明公开了一种高频高压放电处理有机废水的方法及其反应器,将难降解有机废水先通过雾化器雾化之后再进入电化学反应器,通有高压高频电流的电极放电产生电晕,由放电作用形成的高能电子辐射、臭氧、紫外光三者联同作用与雾化的难降解有机废水,本发明的雾化器与电化学反应器结合,构成高频高压放电处理难降解有机废水反应器。本发明结构简单、操作方便、效率高、分解率高并且没有二次污染。

The invention discloses a method for treating organic wastewater by high-frequency and high-voltage discharge and a reactor thereof. The refractory organic wastewater is first atomized by an atomizer and then enters an electrochemical reactor, and is discharged through an electrode with a high-voltage and high-frequency current to generate Corona, the combination of high-energy electron radiation, ozone, and ultraviolet light formed by discharge and atomized refractory organic wastewater. The atomizer of the present invention is combined with an electrochemical reactor to form a high-frequency and high-voltage discharge that is difficult to treat. Degradation of organic wastewater reactor. The invention has simple structure, convenient operation, high efficiency, high decomposition rate and no secondary pollution.

Description

高频高压放电处理有机废水的方法及其反应器Method and reactor for treating organic wastewater by high-frequency and high-voltage discharge

技术领域 technical field

本发明涉及污水净化领域,尤其涉及高频高压放电处理难降解有机废水的方法及其反应器。 The invention relates to the field of sewage purification, in particular to a method for treating refractory organic waste water by high-frequency and high-voltage discharge and a reactor thereof.

背景技术 Background technique

随着工业的发展,与人类生活密不可分的行业不断兴起,其中大部分行业在生产过程中会排放较多有机废水,如皮革、造纸、制糖、纺织、印染、农药、石油化工等工业废水,这些工业废水中有机污染物浓度高并且成分复杂,在污水处理过程中属于难处理的工业废水。 With the development of industry, industries that are inseparable from human life continue to rise, most of which discharge more organic wastewater in the production process, such as leather, paper, sugar, textile, printing and dyeing, pesticides, petrochemical and other industrial wastewater , the concentration of organic pollutants in these industrial wastewaters is high and the composition is complex, which is difficult to treat in the process of sewage treatment.

近年来,难生物降解的有机废水对环境造成了极大的破坏。当前有机废水的处理主要是采用生物处理技术,如常用的活性污泥法、生物膜法。但对于含有大量难生物降解物质的有机废水来说,由于生物处理工程中的微生物受到了严重的抑制作用,严重影响了生物降解的效果。 In recent years, non-biodegradable organic wastewater has caused great damage to the environment. At present, the treatment of organic wastewater mainly adopts biological treatment technology, such as commonly used activated sludge method and biofilm method. However, for organic wastewater containing a large amount of refractory substances, the effect of biodegradation is seriously affected due to the severe inhibition of microorganisms in the biological treatment engineering.

现在运用的还有高压脉冲电晕技术,在水中进行高压脉冲放电即液电效应,是上世纪50年代发展起来的,水中放电一般在极不均匀的电场中由尖电极产生,现有改进形式即液电空化技术,在反应器中通入气体,由于气泡的局部放电,增加了反应活性分子,这种放电形式的主要问题是处理区域有限,电极的侵蚀较为严重,使用寿命较短。 High-voltage pulse corona technology is also used now. High-voltage pulse discharge in water, that is, hydroelectric effect, was developed in the 1950s. Water discharge is generally generated by sharp electrodes in an extremely uneven electric field. The existing improved form That is, electrohydraulic cavitation technology, where gas is introduced into the reactor, and reactive molecules are added due to partial discharge of bubbles. The main problem of this discharge form is that the treatment area is limited, the erosion of electrodes is more serious, and the service life is shorter.

发明内容 Contents of the invention

本发明的目的是提供一种快速、高效降解有机废水的高频高压放电处理难降解有机废水的方法及其反应器。 The object of the present invention is to provide a method and a reactor for treating refractory organic wastewater by high-frequency and high-voltage discharge for rapidly and efficiently degrading organic wastewater.

为达到上述发明目的,本发明采用的技术方案是:一种高频高压放电处理有机废水的方法,将有机废水先通过雾化器雾化之后再进入电化学反应器,通有高压高频电流的电极放电产生电晕,由放电作用形成的高能电子辐射、臭氧、紫外光三者联同作用于雾化的有机废水,实现对废水的降解处理。 In order to achieve the purpose of the above invention, the technical solution adopted in the present invention is: a method for treating organic wastewater by high-frequency and high-voltage discharge, the organic wastewater is first atomized by an atomizer and then enters an electrochemical reactor, and a high-voltage and high-frequency current is passed The electrode discharge produces corona, and the high-energy electron radiation, ozone, and ultraviolet light formed by the discharge act together on the atomized organic wastewater to realize the degradation treatment of the wastewater.

上述技术方案中,电化学反应器为箱式电化学反应器,反应器一般呈长方形,具有不同的三维尺寸,有两块电极,具有进水口与出水口。 In the above technical solution, the electrochemical reactor is a box-type electrochemical reactor, which is generally rectangular in shape, has different three-dimensional dimensions, has two electrodes, and has a water inlet and a water outlet.

在电化学反应器前加入雾化器,能使难降解有机废水雾化,使其比表面积增大,在电化学反应器中反应时反应完全并且提高速度。 Adding an atomizer before the electrochemical reactor can atomize the refractory organic wastewater, increase its specific surface area, and complete the reaction and increase the speed when reacting in the electrochemical reactor.

一种高频高压放电处理有机废水的反应器,包括反应腔、设置在所述反应腔外底面的电极板,所述电极板上电连接有接地端,所述反应腔内贯穿设置有石英管,所述石英管一端绝缘封闭,另一端通入电极导线,所述电极导线与高频高压电源连接,所述反应腔两端设置有进气口、出气口,所述进气口连通有雾化器,所述雾化器设置有进水口。 A reactor for treating organic wastewater by high-frequency and high-voltage discharge, comprising a reaction chamber and an electrode plate arranged on the outer bottom surface of the reaction chamber, the electrode plate is electrically connected to a grounding terminal, and a quartz tube is installed through the reaction chamber , one end of the quartz tube is insulated and closed, and the other end is connected to an electrode wire, and the electrode wire is connected to a high-frequency high-voltage power supply, and the two ends of the reaction chamber are provided with an air inlet and an air outlet, and the air inlet is connected to a foggy The atomizer is provided with a water inlet.

上述技术方案中,通过高频高压放电,使反应腔内空气电离产生电晕,由放电作用形成高能电子辐射、臭氧、紫外光。当被雾化器雾化后的难降解有机废水进入反应腔后,其受到高能电子辐射、臭氧氧化、紫外光分解的联合作用。反应高效迅速。 In the above technical solution, high-frequency and high-voltage discharges are used to ionize the air in the reaction chamber to generate corona, and high-energy electron radiation, ozone, and ultraviolet light are formed by the discharge. When the refractory organic wastewater atomized by the atomizer enters the reaction chamber, it is subjected to the combined action of high-energy electron radiation, ozone oxidation, and ultraviolet light decomposition. The response is efficient and fast.

由于上述技术方案运用,本发明与现有技术相比具有下列优点: Due to the use of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art:

1、本发明采用了雾化器将有机废水先行雾化,增大了有机废水的比表面积,使其能够反应充分,提高反应效率; 1. The present invention adopts an atomizer to atomize the organic waste water in advance, which increases the specific surface area of the organic waste water, enables it to react fully, and improves the reaction efficiency;

2、本发明利用高能电子辐射、臭氧氧化与紫外光分解联用技术,能快速高效地分解有机物; 2. The present invention uses high-energy electron radiation, ozone oxidation and ultraviolet light decomposition combined technology to decompose organic matter quickly and efficiently;

3、本发明设备简单、操作方便、处理范围广并且无二次污染。 3. The invention has simple equipment, convenient operation, wide treatment range and no secondary pollution.

附图说明 Description of drawings

图1为高频高压放电处理难降解有机废水反应器的剖视图。 Fig. 1 is a cross-sectional view of a reactor for treating refractory organic wastewater by high frequency and high voltage discharge.

其中:1、反应腔;2、电极板; 3、接地端;4、石英管;5、电极导线;6、高频高压电源端;7、进气口;8、出气口;9、雾化器;10进水口。 Among them: 1. Reaction chamber; 2. Electrode plate; 3. Grounding terminal; 4. Quartz tube; 5. Electrode wire; 6. High-frequency and high-voltage power supply terminal; 7. Air inlet; device; 10 water inlets.

具体实施方式 Detailed ways

下面结合附图及实施例对本发明作进一步描述: The present invention will be further described below in conjunction with accompanying drawing and embodiment:

实施例一: Embodiment one:

如图1所示,高频高压放电处理难降解有机废水反应器,包括反应腔1、设置在反应腔1外底面的电极板2,电极板2上连接有接地端3,反应腔1内贯穿设置有石英管4,石英管4一端绝缘封闭,另一端通入电极导线5,电极导线5与高频高压电源端6连接,反应腔1两端设置有进气口7、出气口8,进气口7连通有雾化器9,雾化器9设置有进水口10。 As shown in Figure 1, the high-frequency high-voltage discharge treatment refractory organic wastewater reactor includes a reaction chamber 1 and an electrode plate 2 arranged on the outer bottom surface of the reaction chamber 1. The electrode plate 2 is connected to a ground terminal 3, and the reaction chamber 1 runs through A quartz tube 4 is provided. One end of the quartz tube 4 is insulated and closed, and the other end is connected to an electrode wire 5. The electrode wire 5 is connected to the high-frequency and high-voltage power supply terminal 6. The two ends of the reaction chamber 1 are provided with an air inlet 7 and an air outlet 8. The gas port 7 communicates with an atomizer 9 , and the atomizer 9 is provided with a water inlet 10 .

在反应腔1前加入雾化器9,能使难降解有机废水雾化,使其比表面积增大,反应完全并且提高速度。 Adding an atomizer 9 in front of the reaction chamber 1 can atomize the refractory organic wastewater, increase its specific surface area, complete the reaction and increase the speed.

高频高压电源端6通入40KHz、10KV的电流使对反应腔1内空气放电产生电晕,产生具有高度活性的电子、原子、分子和自由基,如·H、·OH、H3O+、O2、O3、处于不同激发态下的氧原子、氢原子、羟基自由基、H2光子、电子等。 The high-frequency high-voltage power supply terminal 6 is fed with a current of 40KHz and 10KV to generate a corona to the air discharge in the reaction chamber 1, and generate highly active electrons, atoms, molecules and free radicals, such as ·H, ·OH, H 3 O + , O 2 , O 3 , oxygen atoms in different excited states, hydrogen atoms, hydroxyl radicals, H 2 photons, electrons, etc.

其反应方程式如下: Its reaction equation is as follows:

O3+OH-→HO2 -+2O· O 3 +OH - →HO 2 - +2O·

HO2 -+H+→H2O2 HO 2 +H + →H 2 O 2

O3+ HO2 -→·OH+ O2 -+ O2 O 3 + HO 2 - → OH + O 2 - + O 2

O2 -+ H+→HO2· O 2 + H + →HO 2 ·

O3+·OH→HO2·+ O2 O 3 + OH→HO 2 + O 2

O3+ O2 -→O3 -+O2 O 3 + O 2 - → O 3 - +O 2

O3 -+ H2O→·OH+ OH-+O2O 3 + H 2 O→·OH+ OH +O 2 .

当被雾化器9雾化后的难降解有机废水进入反应腔1后,这些活性粒子与雾化的有机污染物分子发生频繁的碰撞,污染物分子键断裂,污染物分解。这些活性粒子对有机污染物的分解作用没有选择性,反应高效迅速,是一种兼具高能电子幅射、臭氧氧化、紫外光分解三种作用于一体的有机废水处理技术。 When the refractory organic wastewater atomized by the atomizer 9 enters the reaction chamber 1, these active particles collide frequently with the atomized organic pollutant molecules, the molecular bonds of the pollutants are broken, and the pollutants are decomposed. These active particles have no selectivity for the decomposition of organic pollutants, and the reaction is efficient and rapid. It is an organic wastewater treatment technology that combines high-energy electron radiation, ozone oxidation, and ultraviolet light decomposition.

Claims (1)

1. the reactor of a high-frequency and high-voltage discharge process organic waste water, comprise reaction chamber, be arranged on the battery lead plate of described reaction chamber outer bottom, described battery lead plate is connected with ground terminal, it is characterized in that: in described reaction chamber, run through being provided with silica tube, described silica tube one end insulation and obturation, the other end passes into electrode cable, described electrode cable is connected with high-frequency and high-voltage power supply, described reaction chamber two ends are provided with inlet mouth, air outlet, described inlet mouth is communicated with spraying gun, and described spraying gun is provided with water-in.
CN201310200698.7A 2013-05-27 2013-05-27 Method for treating organic wastewater through high-frequency and high-voltage discharge and reactor thereof Expired - Fee Related CN103241806B (en)

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