摘要： 采用O₃/H₂O₂高级氧化工艺深度处理胞苷酸企业二级生化出水，考察了pH、H₂O₂用量、O₃浓度、反应时间等因素对深度处理效果的影响，探讨了有机磷矿化反应的动力学。结果表明，当废水有机磷质量浓度约为56 mg/L，COD约为640 mg/L时，适宜的反应条件为：pH 8.5，H₂O₂投加量20 mmol/L，O₃质量浓度12 mg/L，反应时间90 min；有机磷矿化反应遵循表观一级动力学，动力学常数为0.024 7 min^-1。优化条件下，有机磷矿化率和COD去除率分别为91.6%和56.8%。O₃/H₂O₂氧化出水经混凝沉淀处理后，TP和COD符合纳管排放要求。

关键词: O₃, H₂O₂, 高级氧化, 胞苷酸, 磷酸三乙酯

Abstract: The O₃/H₂O₂ process has been applied to the advanced treatment of the secondary biochemical effluent in a cytidine 5'-monophosphate(CMP) production plant,the influence of pH,H₂O₂ dosage,O₃ concentration,reaction time on the advanced treatment process effects investigated,and the kinetics of organophosphorus mineralization reaction discussed. The results show that when the organophosphorous mass concentration of the wastewater is about 56 mg/L and COD about 640 mg/L,the optimum reaction conditions are as follows:pH is 8.5,H₂O₂ dosage 20 mmol/L, O₃ mass concentration 12 mg/L and reaction time 90 min. The organophosphorus mineralization reaction follows the apparent-first-order kinetics,whose kinetic constant is 0.024 7 min^-1. Under optimized conditions,the organophosphorus mineralization rate and COD removing rate of the secondary effluent are about 91.6% and 56.8%,respectively. After the effluent of O₃/H₂O₂ oxidation has been treated through coagulation and sedimentation process,the final effluent TP and COD can meet canal discharge requirements.

Key words: ozone, hydrogen peroxide, AOPs, cytidine 5'-monophosphate, triethyl phosphate

中图分类号: 

• X703.1