The benefits of plasma air purification for malodor
Author: Li Deng environmental protection
With the arrival of summer, some nearby garbage stations, recycling stations, underground drainage channels and other places will emit some odor and bad smell; the following common methods for small daily processing are biodegradation, activated carbon adsorption, Plasma air purification method, plant spray liquid deodorization method and UV photolysis purification method.
2. Activated carbon adsorption method
1. Microbial decomposition method
The biological decomposition method uses a circulating water stream to contain pollutants in the malodorous gas in the water, and then the microorganisms are cultured in the water culture bed to degrade the pollutants in the water into low-harm substances, and the deodorization efficiency can reach 70%, but is affected by the microbial activity. The cultured microorganism can only process one or several gases of similar nature. In order to improve the treatment efficiency and stable operation, it is necessary to frequently add chemicals, control the pH value, temperature, etc., so that the operation cost is relatively high, and the labor is also relatively large. And once the organism dies, it will take a long time to re-cultivate.
The activated carbon adsorption method utilizes the developed internal void structure of activated carbon and has a large specific surface area principle to adsorb the odorous gas molecules passing through the activated carbon pool. The initial treatment efficiency can reach 65%, but it is extremely easy to be saturated, and usually fails in a few days, and needs to be replaced frequently. It is also necessary to find a treatment method for waste activated carbon, which has high operation and maintenance cost, is suitable for low concentration and high air volume gas, and has obvious effects on alcohols and fats, but the effect of large humidity is not obvious, and it is easy to cause environmental secondary Pollution.
3. Plasma air purification method
A plasma air purification system uses a specific voltage to convert electrons in the atomic atoms of the air into charged ions. When air passes through the ionization tube, millions of positive and negative ions are formed. These ions are accurately calculated and measured to simulate the air environment in the mountains of nature, except that the indoor air is more "fresh". It can also solve various indoor air pollution problems very effectively. Using knowledge of physics, chemistry, biology and environmental engineering, plasma air purification technology was created and Einstein's ionization theory was successfully realized. By simulating the natural air environment, the indoor air quality is significantly improved, and various harmful pollutants are effectively and quickly removed and decomposed. Plasma air purification technology can effectively reduce dust in the air, neutralize and decompose pollutants in the air, disinfect bacteria, effectively control volatile organic compounds, and clean the air effectively!
4, plant spray liquid deodorization method
The deodorization method of the plant spray liquid is to neutralize and absorb the malodorous gas by spraying the plant extract liquid into the space for generating the malodorous gas to achieve the purpose of deodorization, and the deodorization effect can reach 50%, and the different odors are selected to be sprayed differently. Liquid, need to add plant spray liquid frequently, and need to maintain equipment, high operating and maintenance costs, easy to cause secondary pollution.
5, UV photolysis purification method
UV photolysis purification method uses high-energy UV ultraviolet light, in the photolysis purification equipment, cracks and oxidizes the molecular chain of odorous substances, changes the structure of the substance, and cleaves and oxidizes the high-molecular pollutants into low-molecular harmless substances, and the deodorization efficiency can be 99%. The deodorization effect greatly exceeds the national odor emission standard (GB14554-93) promulgated in 1993, and can treat ammonia, hydrogen sulfide, methyl mercaptan, methyl sulfide, benzene, styrene, carbon disulfide, trimethylamine, dimethyl disulfide. The high-concentration mixed gas, the internal light source can be used for three years, the equipment life is more than ten years, the purification technology is reliable and very stable, the purification equipment does not need routine maintenance, just need to be connected to the power supply to be used normally, and the running cost is low, no two Secondary pollution.
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