Why is photocatalytic oxidation equipment widely used in exhaust gas treatment?
What are the characteristics of UV photocatalytic equipment ? Why is it so widely used in the field of waste gas treatment?
UV photocatalytic equipment has a high efficiency: it can effectively remove volatile organic compounds (VOC), inorganic substances, hydrogen sulfide, ammonia gas, mercaptans and other major pollutants, as well as various malodors, deodorization efficiency is high 99%, far exceeding the emission standard of odor pollutants (GB14554-93).
No pretreatment is required: no special pretreatment is required for malodorous gases, such as heating and humidification. The working environment temperature of the equipment is between -30 °C and 95 °C, the humidity is between 30% and 98%, and the PH is at 3-11. Both can work normally.
Second, no need to add any substances: only need to set the corresponding exhaust duct and exhaust power, so that the malodorous gas is deodorized and purified through the equipment, without adding any substances to participate in the chemical reaction.
Low operating cost: The machine goes to any mechanical action, no noise, no need for special management and routine maintenance, only regular inspection, the equipment has low energy consumption (the air volume per treatment is 1000 cubic meters / hour, only consumes about 0.2 degrees) Electrical energy), the equipment wind resistance is extremely low <100pa.
Third, photolysis:
UV-C ultraviolet C-band (254nm) beam radiates small particle molecules (protein molecules composed of amino acids, fat molecules composed of fatty acids, starch molecules composed of sugars, vitamin molecules, mineral molecules) to cut off molecular chains of oils and fats Changing the molecular structure of fats and volatiles is vulnerable to UV-C attack.
Fourth, oxidation:
The UV-C ultraviolet C-band (185 nm) reacts with oxygen in the air to generate ozone during operation. Ozone is a strong oxidant that permanently oxidizes and decomposes molecules such as alcohols, esters, ketones, aldehydes, ethers, and benzenes in gases into harmless compounds such as water vapor and carbon dioxide. Ozone and OH react with organic compounds and change them.
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