Research on the deep treatment process of pharmaceutical wastewater
This study focuses on pharmaceutical wastewater that has undergone biochemical treatment as the research object,and uses ozone advanced catalytic oxidation method or combined with other methods for deep treatment to investigate the effects of ozone concentra-tion,flow rate,and different fillers on the COD removal efficiency of pharmaceutical wastew-ater after biochemical treatment.The results showed that when the ozone concentration was 95～100 mg/L and the catalytic oxidation was carried out for 2.0 hours,the COD of the wastewater could meet the discharge standards of the industrial park.From the perspectives of energy conservation and consumption reduction,as well as the effectiveness of ozone catalytic oxidation,ozone flow rate of 30 L/min is better than 60 L/min.Catalyst 1+crushed ceramic particles as fillers,ozone has the best catalytic oxidation effect,and the COD of wastewater can meet the discharge standards.The combined treatment of ozone catalytic oxi-dation and COD removal agent flocculation is adopted for hierarchical treatment,the COD removal capacity of COD removal agent is 0～30 mg/L,so the wastewater treated by biochem-ical treatment is not suitable for the combined treatment of these two methods.
万方数据
维普
