Abstract
Removal of NO was studied in a lab-scale bubbling reactor. Effects of operation parameters such as pH value, H2O2 concentration, NO inlet concentration and reaction temperature on NO removal efficiency were investigated. The operation parameters included 250–1000ppm NO, 0.5–1.5mol/L H2O2, FeSO4 0.05mol/L, 2–6 pH, 25–70°C. As can be seen from the experimental results, pH value had a great impact on NO removal efficiency. The experimental results indicated that the gas–liquid reaction between NO and Fenton reagent solution was liquid-film controlled as NO inlet concentration exceeded 600ppm. And NO removal efficiency decreased with increasing reaction temperature.
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