Comparison of photocatalytic oxidation and biological deodorization methods for treating waste gas
Comparison between photocatalytic oxidation and biological deodorization methods for treating waste gas:
Biological deodorization method, also known as biological decomposition method, is the process of using circulating water flow to contain pollutants in foul smelling gases in water, and then cultivating microorganisms in a water culture bed to degrade the pollutants into low harmful substances. The deodorization efficiency can reach 70%, but due to the influence of microbial activity, the cultivated microorganisms can only treat one or several gases with similar properties. In order to improve treatment efficiency and stable operation, Frequent addition of chemicals, control of pH value, temperature, etc. is necessary, which results in relatively high operating costs and requires more manual labor. In addition, once the organism dies, it will require a longer period of re cultivation.
The photocatalytic oxidation method uses high-energy UV rays to decompose and oxidize the molecular chains of odorous substances in the photodegradation purification equipment, change the material structure, and decompose and oxidize polymer pollutants into low-molecularly harmless substances. Its deodorization efficiency can reach 99%, and the deodorization effect greatly exceeds the national emission standard for odorous substances issued in 1993 (GB14554-93). It can process ammonia, hydrogen sulfide, methyl mercaptan, methyl sulfide, benzene, styrene, carbon disulfide, etc High concentration mixed gases such as trimethylamine and dimethyl disulfide have an internal light source that can be used for three years, and the equipment has a lifespan of more than ten years. The purification technology is reliable and very stable, and the purification equipment does not require daily maintenance. It can be used normally by simply connecting the power supply, with low operating costs and no secondary pollution. Scope of application: Deodorization and purification treatment of organic and inorganic odorous gases in food processing plants, meat processing plants, slaughterhouses, poultry feed farms, paper mills, sewage treatment plants, garbage transfer stations, and fecal treatment. Deodorization and purification treatment of organic and inorganic odorous gases in refineries, rubber factories, leather factories, printing factories, chemical factories, traditional Chinese and Western medicine factories, metal casting factories, plastic recycling factories, spray solvents, etc.
Photocatalytic treatment of waste gas technology is a technology that Zhuo Cui Environmental Protection has been researching and practicing for many years, and is the first to introduce and use on a large scale in the field of industrial waste gas purification in China. A series of industrial photocatalytic organic waste gas purification devices formed through continuous improvement.
The photocatalytic deodorization device Zhuo Cui Environmental Protection uses biological spraying for pretreatment, and then enters the photocatalytic purification device. Under the action of the catalyst, it is an environmental protection equipment that converts organic waste gas into CO2 and H2O at room temperature. At present, this device has been widely used by domestic and foreign users, and has achieved good purification effects.