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  • Title: Formaldehyde removal from gas streams by means of NaNO2 dielectric barrier discharge plasma.
    Author: Liang WJ, Li J, Li JX, Zhu T, Jin YQ.
    Journal: J Hazard Mater; 2010 Mar 15; 175(1-3):1090-5. PubMed ID: 19896770.
    Abstract:
    Destruction of formaldehyde by means of NaNO2 ferro-electric packed bed dielectric barrier discharge plasma in a coaxial cylindrical reactor was carried out at atmospheric pressure and room temperature. The difference among four kinds of NaNO2 ferro-electric reactors was compared in terms of specific energy density (SED), energy yield (EY), and HCHO decomposition. In addition, by-products during the decomposition of HCHO and destruction mechanism were also investigated. The removal efficiency of HCHO increased by means of NaNO2 DBD plasma significantly and enhanced with increasing SED distinctly. More amount of NaNO2 contributed to higher HCHO removal efficiency in the reactors. Reactor C had the highest HCHO removal efficiency among the reactors. As an important by-product, ozone concentration increased with higher SED. The possible main products in the outlet effluent were CO, CO(2) and H(2)O.
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