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Study on treatment of chemical industrial wastewater by wet oxidation technology

Yun Zhi

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Abstract

Wet oxidation technologies were used to treat high concentration organic wastewater from the production of sulfamethoxine.The removal rates of COD were 78.3% and 92.0% respectively by wet peroxide oxidation method and catalytic wet oxidation method when the reaction conditions were 250℃,initial ρ(COD) 4?575?mg/L,reaction time 2?h,and initial pH value 7-8.The removal efficiency of COD by the catalytic wet oxidation method was better.The main affecting factors on the removal of COD were investigated respectively,including temperature,reaction time,and initial pH value.

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What this paper is about

Wet oxidation technologies were used to treat high concentration organic wastewater from the production of sulfamethoxine.The removal rates of COD were 78.3% and 92.0% respectively by wet peroxide oxidation method and catalytic wet oxidation method when the reaction conditions were 250℃,initial ρ(COD) 4?575?mg/L,reaction time 2?h,and initial pH value 7-8.The removal efficiency of COD by the catalytic wet oxidation method was better.The main affecting factors on the removal of COD were investigated respectively,including temperature,reaction time,and initial pH value.

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Available abstract

Wet oxidation technologies were used to treat high concentration organic wastewater from the production of sulfamethoxine.The removal rates of COD were 78.3% and 92.0% respectively by wet peroxide oxidation method and catalytic wet oxidation method when the reaction conditions were 250℃,initial ρ(COD) 4?575?mg/L,reaction time 2?h,and initial pH value 7-8.The removal efficiency of COD by the catalytic wet oxidation method was better.The main affecting factors on the removal of COD were investigated respectively,including temperature,reaction time,and initial pH value.

Key concepts: Wet oxidation, Catalysis, Wastewater, Chemistry, Catalytic oxidation, Hydrogen peroxide, Pulp and paper industry, Sewage treatment

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