A kind of ozone depleting agent and preparation method thereof

Abstract

The invention discloses an ozone eliminating agent and a preparation method thereof. The ozone eliminating agent comprises the following components in mass fraction: 0.1-5% of plant extract, 0.1-0.5% of water-based defoamer, 0.2-0.6% of Wetting agent, 0.2-0.3% water retaining agent, 0.3-0.5% buffer and 93.1-99.1% water. The invention uses plant extract as the main active ingredient, and the ozone eliminator obtained by compounding with water-based defoamer, wetting agent, water retention agent, buffer and water can directly and effectively reduce the ozone concentration and achieve the purpose of ozone elimination Among them, the plant extract can directly react with ozone, and itself is oxidized into components such as monodehydroascorbic acid (MDHA) and dehydroascorbic acid (DHA) that can be absorbed by the plant itself, which will not cause secondary pollution and is more environmentally friendly .

Description

technical field [0001] The invention relates to the technical field of ozone treatment, in particular to an ozone eliminator and a preparation method thereof. Background technique [0002] Ozone is the main component of photochemical smog. At present, near-surface atmospheric ozone has become the main pollutant affecting air quality in North China and the Pearl River Delta region. Studies have shown that when the ozone concentration in the air is at a level of 0.012ppm, it can cause itchy skin, irritation of the eyes, nasopharynx, and respiratory tract, and affect lung function, causing symptoms such as cough, shortness of breath, and chest pain. Copiers, fax machines, vacuum cleaners, printers, etc. can generate ozone germicidal lamps through corona discharge, and ultraviolet disinfection cabinets will also continuously release ozone. Ozone at 0.1-1ppm will cause dizziness, headache, dry eyes and throat, sore throat, damaged respiratory tract and other conditions, serious...

AI Technical Summary

Problems solved by technology

Various treatment methods have their own advantages and disadvantages: (1) Activated carbon method: use activated carbon as adsorption filler, commonly used in industrial production, suitable for low concentration ozone; (2) Thermal decomposition method: heat the gas to 673K, through thermal decomposition Or burn and generate redox reaction to remove ozone, which is suitable for the decomposition of high-concentration ozone; (3) liquid absorption method: absorb with solutions such as sodium thiosulfate or sodium sulfite, these chemicals have a small amount of ozone treatment, and there are waste liquid treatment Question, if there is a kind of highly efficient, safe and other medicinal liquid to absorb and decompose ozone, it will be a relatively ideal method; (4) Electromagnetic wave radiation or ultraviolet light photolysis method: use ultraviolet rays or near-infrared rays of 1200nm-1300nm to irradiate ozone. Upon excitation, ozone first converts to singlet O 2 , and then converted to the ground state O 2 (5) Catalytic decomposition method: Although the catalytic decomposition of ozone is the current mainstream research direction, the catalytic efficiency of the catalyst itself is low, and the risk of catalyst deactivation requires frequent replacement or regeneration of the adsorption packing. Secondary pollution issues must also be considered, and the catalyst cost Generally higher, a safe, efficient and low-cost catalyst is still lacking

[0004] Based on the above, it is difficult to directly eliminate ozone or reduce the concentration of ozone by the methods currently on the market, which have certain limitations and lack the basis for large-scale application