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.
| 亚洲激情视频在线观看 | 日韩人妻无码专区精品第58集 | 欧洲无码八A片人妻少妇嫩草影院 | 中文字幕精品视频观看视频 | 男女免费看大片中文字幕 | 成人无码一级毛片VV96CC | 鲁鲁鲁鲁狠鲁一鲁爽爽爽 | 黄色美女网站免费观看 | 成人一区二区三区在线午夜爱奇艺 | 中文字幕精品久久久久人妻红杏1 | 农村妇女躁BBBB高朝喷水电影 | 免费看黃色AAAA片 | AV无码秘蜜桃成人片玉蝶直播 | 国产欧美日韩高清成人少妇 | 成人黄色视频网站在线观看 | 国产精品 在线播放 | 中文字幕乱码亚洲精品一区 | 一夲无码人妻一区二区 | 91人妻系列绿帽精品蜜臀 | 欧美韩日综合一区 | 少好人妻一级A片. | 精品人妻无码一区二区在线影院 | 91尤物国产福利在线观看 | 日韩一线二线中文字幕 | yy6080午夜私人无码 | 少妇人妻上班偷人精品免费 | 拔丝袜午夜网址免费观看 | 饥渴人妻被躁BD中文字幕 | 红桃视频999精人一在线播放 | 蜜臀久久99精品久久久久久基情 | 久久精品yywww麻豆md一区 | 国内精品久久久久久久久 | av一区二区网址在线观看 | 国产丝袜视频在线观看 | 成人AV一二区在线播放 | 欧美日韩版本精品久久 | 美女航空一级毛片在线播放 | 国产精品无码一区二区桃花视频 | 国产精品无码大片在线观看 | 乱女乱妇熟女熟妇综合网站 |