Effect of electron beam irradiation on the degradation of monochlorophenols in aqueous solution.
Electron beam was successfully used for the degradation of 2-chlorophenol (2-CP) and 4-chlorophenol (4-CP) in aqueous solutions in this research. The effect of radiation dose on substrate degradation and dechlorination of solutions with concentration of 50 mg/L was investigated. The effect of initial concentration, pH and presence of oxygen was also investigated. The concentration of 2-CP and 4-CP remaining in solution after irradiation were measured by HPLC. The results showed that increased radiation dose led to increased degradation of the chlorophenols and increased Cl- yield. Deaeration was also found to significantly increase the rate of degradation of chlorophenols in water while degradation and dechlorination under alkaline condition was lower than at low to neutral pH.
Adeleke
Olukunle Francis
OF
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200072, China. kadeleke@yahoo.com
Zhou
Rui-min
RM
Zu
Jian-hua
JH
Gracien
Ekoko Bakambo
EB
D002851:Chromatography, High Pressure Liquid; D004307:Dose-Response Relationship, Radiation; D004583:Electrons; D006843:Hydrocarbons, Chlorinated / Q000737:chemistry* / Q000528:radiation effects; D006863:Hydrogen-Ion Concentration; D010100:Oxygen / Q000032:analysis; D010636:Phenols / Q000737:chemistry* / Q000528:radiation effects; D011839:Radiation, Ionizing; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000528:radiation effects; D018508:Water Purification / Q000379:methods*
D006843:Hydrocarbons, Chlorinated; D010636:Phenols; D014874:Water Pollutants, Chemical; D010100:Oxygen