Effect of electron beam irradiation on the degradation of monochlorophenols in aqueous solution |
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Authors: | ADELEKE Olukunle Francis ZHOU Rui-min Zu Jian-hua and Ekoko Bakambo Gracien |
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Institution: | 1. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200072, China 2. Shanghai Applied Radiation Institute, Shanghai University, Shanghai 201800, China |
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Abstract: | 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. |
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Keywords: | electron beam monochlorophenols degradation deaeration |
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