[Fenton technique for oxidation treatment of solid-waste containing aniline].
The catalytic oxidation of aniline was evaluated to provide the foundation for risk-based treatment of aniline-contaminated solid-waste using Fenton reagent (catalyzed hydrogen peroxide). The operating conditions of Fenton reaction were investigated and the factors of the chemical treatment were analyzed. The optimal conditions were following: 1.1 mL H2O2 per gram of dried solid waste, V (H2O2) 0.5-1.0 mL x min(-1), addition of Fenton reagent twice or three times at pH = 3.0 in 50 grams of waste, and the aniline removal rate is over 99.86% for 30 min reaction after reagent addition. Furthermore, mechanisms of affecting factors in solid-waste were analyzed; the key and controlling steps of reactions were expounded in the system, which provided safeguard for further treatment ranging from stabilization and solidification to landfill.
Hu
Li-Fang
LF
Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China. hulif127@zju.edu.cn
Yao
Jun
J
Lou
Bin
B
He
Ruo
R
Shen
Dong-Sheng
DS
D000814:Aniline Compounds / Q000737:chemistry*; D002384:Catalysis; D004785:Environmental Pollutants / Q000737:chemistry*; D004787:Environmental Pollution / Q000032:analysis / Q000517:prevention & control; D006861:Hydrogen Peroxide / Q000737:chemistry*; D007501:Iron / Q000737:chemistry*; D010084:Oxidation-Reduction; D012037:Refuse Disposal / Q000379:methods*
D000814:Aniline Compounds; D004785:Environmental Pollutants; C045076:Fenton's reagent; D006861:Hydrogen Peroxide; D007501:Iron; C023650:aniline