There are many domestic organic waste gas treatment technologies, but as far as their working principles are concerned, they can be divided into the following eight types:
1. Adsorption: The use of an adsorbent to physically combine with a volatile organic compound or a chemical reaction to remove contaminated components.
2. Absorption: The organic waste gas and the washing liquid are brought into full contact to realize the transfer of pollution molecules, and then the organic waste gas molecules are completely removed by chemical agents.
3. Condensation: The exhaust gas is cooled to the "freezing point" of the organic exhaust gas molecules, which are condensed to a liquid state and then recovered.
4. Membrane separation: Use synthetic membrane to separate toxic substances in exhaust gas.
5. Biodegradation: Microbes digest and metabolize pollutants in waste gas, and convert the pollutants into harmless water, carbon dioxide and other inorganic salts.
6. Thermal incineration: Based on the characteristics of organic compounds in the exhaust gas that can be burned and oxidized, it is converted into harmless carbon dioxide and water.
7. Plasma: The plasma field is enriched with a large number of active species, such as ions, electrons, excited atoms, molecules, and free radicals; active species dissociate small molecules of pollutant molecules.
Plasma is mainly suitable for organic waste gas treatment with high concentration and relatively low temperature. It is generally suitable for the recovery and treatment of organic waste gas with high VOCs content and small gas content. Since most VOCs are flammable and explosive gases, subject to the limit of explosion, the VOCs content in the gas will not be too high, so it must be higher. The recovery rate needs to adopt very low-temperature condensing medium or high-pressure measures, which will inevitably increase equipment investment and processing costs. Therefore, this technology is generally used as a good processing technology and combined with other technologies.
8. Photooxycatalysis: Photocatalyst nanoparticles are stimulated to generate electron-hole pairs when irradiated with light of a certain wavelength. Water adsorbed on the surface of the hole-decomposition catalyst generates hydroxyl radicals OH, and the electrons reduce the surrounding oxygen to active ion oxygen. Therefore, it has a strong redox capacity and can destroy various pollutants on the surface of the photocatalyst.
| 国产精品JIZZ在线观看99 | A片做爰高潮过程免费观看网站 | 亚洲国产精品无码久久久久久久久 | 高潮无码精品色欲av午夜福利 | 欧美成人免费在线视频 | 新久久久久久免费看 | 亚洲av无码电影在线观看 | www.五月天综合视频 | 日韩精品99久久久久中文字幕 | 91视频网站免费观看 | 熟女-91Porn| 可以免费看av的网站 | 成人做爰A片免费看黄冈 | 精华狠狠久久痉挛 | 农村少妇一级毛片 | 内射在线无码91 | 后入中出内射成人在线网站 | 免费看国产黄色视频网站 | 100国产精品人妻无码 | 肉色超薄丝袜脚交一区二区 | 久久蜜桃香蕉精品一区二区三区 | 亚洲无码高清视频一区二区 | 国产伦精品一区二区三区在线 | 四川少妇XXX真爽 | 午夜伦伦电影理论片A片不卡蜜爱 | 黄色视频网站进入 | 91视频免费版在线观看 | 人妻少妇精品无码专区啵多 | 日韩精品一区二区三区熟女 | 亚洲无码免费在线视频 | 国产精品乱码色情一区二区三区最新版 | 国产精品成人久久久久久久 | 中文字幕人妻在线视频 | 91爱豆传媒国产成人网站 | 丰满人妻熟妇乱又伦精品凤鸣阁 | 免费在线观看AV | 国产女人在线观看 | 一级毛片久久久久久久18姑娘 | 成人午夜啪免费视频在线观看软件 | 可以直接看的av网站 |