CN102765785A - Device and method for sterilizing and disinfecting wastewater by pulsed liquid-phase discharge plasma - Google Patents

Device and method for sterilizing and disinfecting wastewater by pulsed liquid-phase discharge plasma Download PDF

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Publication number
CN102765785A
CN102765785A CN2012102450259A CN201210245025A CN102765785A CN 102765785 A CN102765785 A CN 102765785A CN 2012102450259 A CN2012102450259 A CN 2012102450259A CN 201210245025 A CN201210245025 A CN 201210245025A CN 102765785 A CN102765785 A CN 102765785A
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liquid
discharge
plasma
gas
device
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CN2012102450259A
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Chinese (zh)
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刘勇
胡小吐
邓康
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广州埔玛电气有限公司
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Abstract

The invention discloses a device and a method for sterilizing and disinfecting wastewater by pulsed liquid-phase discharge plasma. The device comprises a pulsed liquid-phase discharge plasma generator and a gas bubbling device, wherein the gas bubbling device is used for bubbling a liquid medium in the device so as to increase generation source matters of free plasma radicals in the liquid medium to enhance the gas-liquid mixing; and the pulsed liquid-phase discharge plasma generator is used for generating active matters of free plasma radicals and transient energy in gas-liquid mixtures. According to the device and method disclosed by the invention, bacteria and viruses in the wastewater are killed by active matters of the free radicals and transient energy generated in the discharge so as to realize efficient treatment of the wastewater; and besides, the wastewater treatment method disclosed by the invention has the advantages of low energy consumption and simple and easy device maintenance.

Description

—种脉冲液相放电等离子污水灭菌消毒的装置和方法 - Method and apparatus kinds of pulse discharge plasma liquid sterilize water

技术领域 FIELD

[0001] 本发明涉及一种脉冲液相放电等离子污水灭菌消毒的装置和方法。 [0001] The present invention relates to apparatus and method for pulse-liquid discharge plasma sterilization of sewage.

背景技术 Background technique

[0002] 我国水污染状况目前相当严重,近几年来,工业废水和生活污水每天排放量近 [0002] Water Pollution in China at present the situation is very serious in recent years, industrial wastewater and domestic sewage emissions by nearly every day

I. 64亿吨,其中80%未经严格处理直接排入江河水域;全国1700条大河流近10万公里的河段中,近1/2河段受到污染,1/1 0河段被严重污染;90%以上的城市水域受到污染。 I. 64 billion tons, of which 80% without rigorous treatment directly into rivers waters; nearly 100,000 kilometers of river big river in the country 1700, nearly half of the river is contaminated, 1/10 River is serious pollution; more than 90 percent of urban water contamination. 另一方面,我国是世界上水资源严重短缺的国家之一,要用占世界6%的水去养活占世界20%的人,我国的人均饮用水拥有量仅为世界平均水平的1/4。 On the other hand, China is one of the world's serious water shortage the country, accounting for 6% of the world use water to feed 20% of the world's people, China's per capita drinking water has only a quarter of the world average . 因此,大力推进我国水质净化,迫在眉睫。 Therefore, vigorously promote China's water purification, is imminent. 饮用水安全的关键首先在于污染源的控制,其中污水废水的有机污染物及杀毒灭菌等的控制成为关键,国家亦相继出台《中华人民共和国污水综合排放标准》、《城镇污水处理厂污染物排放标准》、《城市污水处理厂污水污泥排放标准》等国家标准。 First is the key to safe drinking water pollution control, and control of organic pollutants and sewage wastewater antivirus sterilization which such a key, the state also have issued a "People's Republic of Integrated Wastewater Discharge Standard", "urban sewage treatment plant pollutant emissions standard "," urban sewage treatment plant sewage sludge emissions standards "and other national standards.

[0003] 污水的消毒灭菌一般是水质净化的最后一道工序。 [0003] The sterilization of sewage water purification is generally a last step. 常用的污水处理消毒工艺有卤素消毒(如氯气、二氧化氯)、氧化剂消毒(如臭氧、过氧乙酸)、辐射消毒(如紫外线)。 Conventional sewage treatment with halogen disinfecting disinfection process (such as chlorine, chlorine dioxide), an oxidizing agent disinfection (such as ozone, peracetic acid), radiation sterilization (e.g., ultraviolet light). 在上述常用污水消毒技术中,或产生有毒的消毒副产物,存在“三致”物质,对人类和水生生物会产生长期毒性影响;或现场制取设备复杂,投资大、成本较高、设备管理复杂等;紫外线技术则存在光复合细菌再生问题、石英套管的污垢膜问题、大功率长寿命石英管的价格及高昂维护费问题、紫外光透射率问题、设备电耗较大等问题。 In the conventional disinfection techniques, or toxic disinfection by-products, the presence of "three letter" material, will produce long-term toxic effects on humans and aquatic organisms; or on-site complex to take equipment, high investment, high cost, equipment management complex and the like; the presence of UV light techniques regeneration compound bacteria, membrane fouling problems of the quartz tube, the price of high power and long life of the quartz tube and high maintenance expenses, of ultraviolet light transmittance problems, equipment problems such as large power consumption.

发明内容 SUMMARY

[0004] 本发明的目的是提供一种脉冲液相放电等离子污水灭菌消毒的装置和方法。 [0004] The object of the present invention is to provide a pulsed plasma discharge liquid water sterilization apparatus and methods.

[0005] 本发明所采取的技术方案是: [0005] The technical solution by the present invention are:

一种脉冲液相放电等离子污水灭菌消毒的装置,包括脉冲液相放电等离子发生器、气体鼓泡装置,所述的气体鼓泡装置用于向装置内的液体介质中鼓泡从而在液体介质中增加等离子体自由基的发生源物质,增强气液混合;所述脉冲液相放电等离子发生器用于在气液混合物中产生等离子体自由基活性物质与瞬态能量。 Sterilize sewage ion pulse-liquid discharge apparatus, comprising a pulse-liquid discharge plasma generator, a gas bubbling device, means for bubbling the gas in liquid media by bubbling into the liquid medium in the apparatus increase in the plasma generating source material free radicals and increased gas-liquid mixing; the liquid discharge plasma pulse generator for generating a plasma radical active material and transient energy in the gas-liquid mixture.

[0006] 所述的脉冲液相放电等离子发生器包括放电电源与放电极。 The [0006] pulse-liquid discharge plasma generator comprises a discharge power to the discharge electrode.

[0007] 所述的放电电源为脉冲电源。 The discharge power supply [0007] The pulse power supply.

[0008] 所述的放电极的形状包括圆柱体、球体、线-板。 [0008] The shape of the discharge electrode comprises a cylinder, a sphere, wire - plate.

[0009] 一种脉冲液相放电等离子污水灭菌消毒的方法,包括以下步骤:使用气体鼓泡装置向液体介质中鼓泡从而在液体介质中形成气液混合态,再利用脉冲液相放电等离子发生器在气液混合物中放电产生等离子体自由基活性物质与瞬态能量,通过利用等离子体自由基活性物质以及瞬态能量对污水进行杀毒和灭菌。 [0009] A pulse-liquid sewage discharge plasma sterilization method, comprising the steps of: forming by bubbling a gas-liquid mixed state in a liquid medium into a liquid medium a gas bubbling device, and then using a pulsed plasma discharge liquid generator discharge plasma is generated in the liquid mixture and transient energy active substance radical, a radical of sewage by using a plasma energy active material, and transient virus and sterilization.

[0010] 本发明的有益效果是: [0010] Advantageous effects of the present invention are:

本发明利用放电中产生的自由基以及瞬态能量对污水中的细菌和病毒进行杀灭,从而实现污水的高效消毒灭菌,同时本发明的处理方法消耗的能量低,设备简单容易维护。 The present invention utilizes free radicals and transient energy generated in the discharge of sewage to kill bacteria and viruses, to enable efficient sterilization of water, while a low processing method of the present invention, energy consumption, simple equipment easy to maintain. 附图说明 BRIEF DESCRIPTION

[0011] 图I是本发明的装置的结构示意图。 [0011] FIG. I is a schematic diagram of the apparatus of the present invention.

具体实施方式 Detailed ways

[0012] 如图I所示,一种脉冲液相放电等离子污水灭菌消毒的装置,包括进水口I、放电电源2,放电极3,空压机5,气体鼓泡装置6,接地7、出水口4、容器8,其中,放电极3由上放电极31、下放电极32构成,上放电极31与下放电极32之间的间距为0. 5 mm,材质为不锈钢圆棒。 [0012] As shown in a pulse-liquid sewage discharge plasma sterilization apparatus I shown in FIG disinfection, comprising a water inlet I, discharge power supply 2, the discharge electrode 3, the air compressor 5, a gas bubbling device 6, 7 is grounded, outlet 4, the container 8, wherein the discharge electrode 3 on the discharge electrode 31, electrode 32 decentralized configuration, the distance between the discharge electrode 31 and the electrode 32 is decentralized 0. 5 mm, made of stainless steel rod. 空压机5与气体鼓泡装置6连通,气体鼓泡装置6设置在容器8的底部,同时其位于下放电极32的下部,放电极与放电电源2连接,放电电源采用脉冲电源:220V (AC),50Hz,脉冲峰值电压3. 7kV。 Communicates with the gas compressor 5 bubbler 6, a gas bubbling device 6 is disposed at the bottom of the vessel 8, while the lower electrode 32 located decentralized, the discharge electrode 2 is connected to the discharge power, pulsed discharge power supply: 220V (AC ), 50Hz, the pulse peak voltage 3. 7kV. [0013] 待处理的污水:电导率为289此,粪大肠杆菌98000个/L。 [0013] Wastewater to be treated: a conductivity of 289 this, fecal coliform 98,000 / L.

[0014] 处理的步骤为:污水从进水口I输入容器中,容器中的污水量达一定量(50L为例),通过空压机5向气体鼓泡装置6中输入空气(输入流量为3L/min),鼓泡装置6在液体中产生大量的气泡,同时开启放电电源,处于液体中的上放电极31与下放电极32之间进行放电,在气液混合物中产生自由基,同时结合放电过程中产生的瞬态能量(包括放电中产生的紫外光、冲击波)对污水中的细菌病毒进行杀灭,经过连续4min的处理,粪大肠杆菌降至小于680个/L,出水中粪大肠杆菌达到一级A出水标准(GB18918-2002)。 [0014] The steps of the process are: I input wastewater from the vessel inlet, the water capacity of the container a quantity (Example 50L), the input air into the gas bubbling device 6 by the compressor 5 (the input flow rate of 3L / min), bubbling device 6 generates a large amount of bubbles in the liquid, while the discharge power supply is turned on, the liquid in the discharge electrode 32 between the discharge electrode 31 and the decentralized generate radicals in the gas-liquid mixture, the combined discharge transient energy generated in the process (including ultraviolet light generated in discharge, shock waves) of sewage bacteria to kill viruses, the treated continuous 4min, fecal coliform to less than 680 / L, the water fecal E. coli A water reaches a standard (GB18918-2002). 完成处理后的水可通过出水口4放出。 After completion of the water treatment can be discharged through the water outlet 4.

[0015] 本发明中,所用的气体鼓泡装置即为专利申请号为“201110165898. 4”中所述的微 [0015] In the present invention, a gas bubbling device that is used in Patent Application No. said micro "201110165898.4"

泡发生装置。 Bubble generating means.

Claims (5)

1. 一种脉冲液相放电等离子污水灭菌消毒的装置,包括脉冲液相放电等离子发生器、气体鼓泡装置,其特征在于:所述的气体鼓泡装置用于向装置内的液体介质中鼓泡从而在液体介质中增加等离子体自由基的发生源物质,增强气液混合;所述脉冲液相放电等离子发生器用于在气液混合物中产生等离子体自由基活性物质与瞬态能量。 Ion water sterilization apparatus 1. A pulse-liquid discharge, comprising a pulse-liquid discharge plasma generator, a gas bubbling device, wherein: said means for bubbling gas into the liquid medium in the apparatus bubbling liquid medium thereby increasing the plasma radical generating source material, to enhance gas-liquid mixture; the liquid discharge plasma pulse generator for generating a plasma radical active material and transient energy in the gas-liquid mixture.
2.根据权利要求I所述的一种脉冲液相放电等离子污水灭菌消毒的装置,其特征在于:所述的脉冲液相放电等离子发生器包括放电电源与放电极。 The ion water sterilization apparatus of a pulse-liquid discharge according to claim I, wherein: said pulse generator comprises a liquid discharge plasma discharge power supply to the discharge electrode.
3.根据权利要求2所述的一种脉冲液相放电等离子污水灭菌消毒的装置,其特征在于:所述的放电电源为脉冲电源。 3. The sterilization apparatus according to claim a pulsed plasma discharge liquid sterilizing water according to claim 2, wherein: said pulsed discharge power supply.
4.根据权利要求2所述的一种脉冲液相放电等离子污水灭菌消毒的装置,其特征在于:所述的放电极的形状包括圆柱体、球体、线-板。 The pulse-liquid discharge apparatus according to the second ion water sterilization claim, wherein: the shape of the discharge electrode comprises a cylinder, a sphere, wire - plate.
5. 一种脉冲液相放电等离子污水灭菌消毒的方法,其特征在于:包括以下步骤:使用权利要求I中所述的气体鼓泡装置向液体介质中鼓泡从而在液体介质中形成气液混合态,再利用权利要求I中所述的脉冲液相放电等离子发生器在气液混合物中放电产生等离子体自由基活性物质与瞬态能量,通过利用等离子体自由基活性物质以及瞬态能量对污水进行杀毒和灭菌。 The method of ion sterilize sewage A pulsed liquid discharge, characterized by: comprising the steps of: a gas bubbling device I so as to form in said liquid medium to the liquid in the liquid medium used in the claims bubbled mixed state, re-use of claim I in the liquid discharge pulse plasma discharge produced plasma radical generator active substance in the liquid mixture and the transient energy by using a plasma radical active material, and transient energy disinfect sewage and sterilization.
CN2012102450259A 2012-07-16 2012-07-16 Device and method for sterilizing and disinfecting wastewater by pulsed liquid-phase discharge plasma CN102765785A (en)

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CN104540459A (en) * 2012-08-17 2015-04-22 冲击波医疗公司 Shock wave catheter system with arc preconditioning
JP2015107481A (en) * 2013-10-25 2015-06-11 パナソニックIpマネジメント株式会社 Liquid treatment apparatus and liquid treatment method
US9642673B2 (en) 2012-06-27 2017-05-09 Shockwave Medical, Inc. Shock wave balloon catheter with multiple shock wave sources
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