Discussion on UV photolysis, UV-catalyzed photolysis, and plasma photolysis
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There are known methods such as UV photolysis, UV-catalyzed photolysis, and plasma photolysis, as well as those that have not yet been put into use. Let’s discuss them: applicable applications, limitations, performance outcomes, and possible combinations with other processing technologies, among other things.
UV-catalyzed photolysis is currently being effectively used in our company for the treatment of organic waste gases, and it is worth promoting. Compared to activated carbon adsorption, it generates no solid waste; it is safer than the combustion method, allows for local treatment, and makes it easier to address explosion risks.
Using ultraviolet-induced ozone for waste gas treatment is effective against certain VOCs, but it has little to no effect on some other types of compounds
Many people who were engaged in UV photolysis have stopped doing it. At first there was some effect, but the removal rate was very low, and it became increasingly ineffective over time； Environmental regulations are becoming increasingly strict; if these measures prove ineffective, the environmental authorities will not approve the manufacturers, and they will face problems as well. After all, a significant amount of money has been invested, and if there are no results, the manufacturers will demand compensation.
May I ask if it is used to treat a specific type of organic waste gas, or VOCs in the general sense? It is said that the substances available for decomposition are quite limited, which restricts the development of UV photolysis technology.
Why say that? Below, there are manufacturers saying it works very well. If it’s a concept, then what is it that restricts the development of this technology?
Simply put, we used it, but the environmental protection authorities did not approve it, so it was demolished； In terms of technical aspects, the removal efficiency is low; I won’t specify exactly how low it is ； Another point is that over time, deposits will form on the lamp tubes, which further reduces the photolysis rate ； For the rest, you can check previous discussions on this forum regarding VOC photolysis; those topics have already been covered ； You can also consult some manufacturers that have carried out photodecomposition; they will respond to you ； The above are merely my personal opinions; they are unofficial, so please understand any imperfections.
We are a coating manufacturing company, and the evaporation of solvents is inevitable; the irritating odors emitted through the ventilation systems in our facilities have a significant impact on the surrounding area. However, after UV photolysis treatment, there is a significant effect both in terms of VOC detection by instruments and in terms of the odor
What is the main component of your solvent? Could you also recommend the manufacturer you use?
This post was last edited by goldliyang on 2016-11-24 07:50. The solvents include 1000# and 1500# solvent oils, toluene, butyl acetate, and so on. The photocatalytic organic waste gas treatment equipment is a product manufactured by XXXXXX Company, and it is primarily used for treating waste gases generated in industries such as painting, electronics manufacturing, laboratory ventilation, metallurgy, chemicals, pharmaceuticals, coating, food processing, brewing, and furniture production.