Tubular Electrode-Dielectric Barrier Low Temperature Plasma Coupling Device
A low-temperature plasma, dielectric barrier technology, applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of large facility footprint and long processing cycle, and achieve the effect of preventing secondary pollution
Active Publication Date: 2021-05-07
NANJING UNIV OF SCI & TECH
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Problems solved by technology
The more common ones are biological washing method, biological filter method and activated sludge method, etc. These methods mainly have problems such as large facility area and long treatment cycle.
At present, the treatment of waste water containing VOCs often ignores the waste gas that escapes during the treatment process, or only separates the waste water and waste gas for separate treatment. Therefore, it is extremely important to develop a stable and efficient process for synchronously treating waste water and waste gas containing malodorous substances. Practical significance
Method used
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Embodiment Construction
[0021] Below in conjunction with accompanying drawing, the present invention will be further described
[0022] Such as Figure 1-3 As shown, a tubular electrode-dielectric barrier low-temperature plasma coupling device, including sodium methyl mercaptan waste water bottle 1, tubular electrode electrochemical oxidation device 2, buffer bottle 3, diaphragm pump 4, vacuum pump 5, air compressor 6. Dielectric barrier low-temperature plasma device 7, AC power supply 8, oscilloscope 9, tail gas absorption bottle 10 and DC power supply 11 are formed, and the sodium methylmercaptan waste water bottle is connected with air inlet conduit 12, connecting conduit 13, return conduit 14, The air inlet pipe is connected with a water-stop clip 1, and the gas in the air can be supplemented into the sodium methyl mercaptide waste water bottle 1 by opening the water-stop clip 1, and the sodium methyl mercaptide waste water bottle 1 is connected to the tubular electrode electrochemical oxidation ...
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The invention discloses a tubular electrode-dielectric barrier low-temperature plasma coupling device, which is sequentially composed of a tubular electrode electrochemical oxidation device and a dielectric barrier low-temperature plasma device, wherein the tubular electrode electrochemical oxidation reactor is coated with lead dioxide on a titanium matrix. The first-layer tubular electrode is used as an anode and is matched with a concentric tubular stainless steel cathode. The dielectric barrier low-temperature plasma device is composed of a copper rod positive electrode and a titanium plate negative electrode, and the intermediate barrier medium is a quartz tube. The invention also discloses an in-depth combination process for the device to treat chemical wastewater and waste gas containing sodium methyl mercaptide, and combines electrochemical oxidation and low-temperature plasma degradation to form a coupled process, which realizes the optimal connection of treatment processes in each section; the invention can realize absolute The advanced treatment of most chemical wastewater containing organic volatile compounds has fast reaction speed, stable operation, no pollution, wide application range and low cost. The treated wastewater can reach the reuse standard and the waste gas can reach the standard discharge.
Description
technical field [0001] The invention belongs to the technical field of volatile substance-containing waste water and waste gas treatment technology, and relates to a tube-type electrode-dielectric barrier low-temperature plasma coupling combined device treatment device and a combined process thereof. Background technique [0002] Volatile Organic Compounds (VOCs for short) refer to organic compounds with a boiling point between 50-260°C under normal pressure. VOCs mainly come from industrial production and social life. Industry produces the most VOCs emissions, such as the pharmaceutical industry, petrochemical industry, printing industry, electronics industry, and manufacturing industry, which generate a large amount of VOCs. The second is that organic materials volatilize or transform themselves during use, such as building materials, paints, floors, furniture, etc. volatilize VOCs themselves and exhaust emissions in transportation. VOCs are toxic, harmful, flammable and...
Claims
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IPC IPC(8): B01D53/32B01D53/18C02F1/467
CPCB01D53/18B01D53/32B01D2257/306B01D2259/818C02F1/4672C02F2101/40
Inventor 王连军沈辰阳崔韬韩卫清李健生沈锦优孙秀云
Owner NANJING UNIV OF SCI & TECH