Oxidation and Absorption of NO into Fenton Reagent under Super-gravity Environment
ZHENG Yuelun
LI Xianglong
LI Zhenhu
GUO Kai
QIAN Zhi
Abstract：NO,due to its low solubility,is not easily absorbed by liquid.To remove NO,oxidation and absorption of NO by Fenton method was used together with a rotating packed bed,the super-gravity machine,during which hydroxyl radicals produced by Fenton reaction had super high oxidative properties with very short lifetime,while the rotating packed bed gave rise to quick mixing rate and short liquid residence time.In this paper,parameters affecting NO removal were studied including pH,concentration of Fenton solution,and ratio of H2O2 to Fe2+,as well as the rotor speed of super-gravity machine.When operating under the optimum condition,H2O2 and Fe2+ blended at the very edge of reactor inlet,and pH=2,H2O2 concentration was 0.2 mol/L,ratio of H2O2 to Fe2+ 4,and rotor speed being 1 400 r/min.When flow rates of H2O2 and Fe2+ were the same 15 L/h and flow rate of NO of 500×10-6 was 200 L/h,NO removal efficiency could be as high as 75％.
Keywords：Fenton reagentrotating packed bedNO oxidationhydroxyl radical
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 48-52 )