Removing of Atrazine from Water using Advanced Oxidation Processes

Abstract

The performance of Advanced Oxidation Processes UV, Ozone (O₃)_, UV+O₃, O₃+ H₂O₂, UV+H₂O₂ were investigated in this study using a semi batch lab scale experiments for the mineralization of Atrazine which is used as a model pollutant. 1mg/L of Atrazine was investigated. The effect of pH was studied in the presence of sodium hydroxide (NaOH). UV photolysis (UV only) shows no COD reduction in treating Atrazine. The treatment with O₃ gives 43% of COD reduction. For O₃ +UV the COD reduction achieved was 45% at pH=12. Treatment with O₃+H₂O₂ gives 95% reduction in COD at H₂O₂ concentration of 140mg/L and pH=12. The treatment with UV+H₂O₂ gives 95% in COD reduction at H₂O₂ concentration 600 mg/L and pH=7.