Penicillin Production Wastewater Advanced Treatment

The water quality of penicillin production wastewater is complex, the concentration of COD_cr is high, the concentration of sulfate is high, the fluctuation of water quantity is high, and the water quantity is volatile, and the water quantity is difficult to degrade. The study by Fenton reagent oxidation and Cu catalytic reduction method, aeration iron carbon micro electrolysis, ozone oxidation of penicillin wastewater after biochemical treatment of effluent of study on advanced treatment, with a view to providing reference for treatment of penicillin wastewater depth.The 4 methods of Fenton reagent oxidation, Cu/Fe catalytic reduction, aeration iron carbon micro electrolysis and ozone oxidation were investigated. The influence of 4 methods on the treatment effect was investigated.. The results showed that the optimum conditions of Fenton reagent oxidation of H₂O₂ （mass fraction 30%） voted to increase the amount of 10ml/100ml, Fe²⁺ and H₂O₂ molar ratio is 1/10, the pH value is 3.0, the reaction time is 0.5h, under the optimal conditions for the COD_cr removal rate was 89.7%, BOD₅ removal rate reached 36.4%, NH3-N removal rate of 98.8%. The optimum conditions of Cu/Fe catalytic reduction method is the temperature shock box temperature is 25 ℃, shaking speed 140r/min, copper and iron total investment plus the amount of 12.00g, copper and iron cast and the ratio of Cu/Fe=l:4, wastewater pH is 4.5, shock reaction time was 1H. Under the optimum conditions of COD_cr removal rate reached 64.2%, BOD₅ removal rate reached 47.1%, NH3-N removal rate reached 97.8%. Aeration iron carbon micro electrolysis method of optimum conditions on the aeration time is 2.Oh, iron carbon cast dosage for 20.00g iron carbon ratio (volume ratio 1:1, the amount of aeration 0.25L/min, initial pH value is 4.0, under the optimum conditions, the COD_cr removal rate reached 58.7%, BOD5 removal rate was 42.2%, NH₃-N removal rate reached 99.2%. The optimum conditions of ozone oxidation is ventilation time is 20min, Water 500ml, ozone and the rate of occurrence of 10 g/ L, the reaction temperature is 30 degrees, wastewater pH 10.0, under the optimum conditions, the removal rate of CODCr can reach 60.7%, BOD₅ removal rate can reach 47.9%, NH₃-N removal rate reached 96.8%.The results show that the oxidation process of Fenton reagent in the 4 methods is the best, and the effluent CODCr is 22.5mg/L, and the first level of the<GB 8978-1996> is achieved...