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Subject: The role of activated carbon in the pharmaceutical
Content: At present, the organic pollution of drinking water source is relatively serious. The organic pollutants themselves are not only highly toxic, but also may generate halogenated disinfection by-products (DBPs) after chlorination disinfection. Meanwhile, the existence of organic compounds will reduce the biological stability of drinking water and lead to the secondary reproduction of microorganisms in the pipe network. Therefore, it is important to reduce the content of organic pollutants in drinking water. Conventional water treatment process has low removal efficiency for organic pollutants, so it is imperative to seek economic and efficient treatment technology. On the basis of giving full play to the advantages of ozone oxidation to remove organic matter, ozone catalytic oxidation technology can induce the formation of highly oxidizing hydroxyl radical (-Oh), which can effectively remove trace organic pollutants that are difficult to degrade in water and reduce the content of ozone oxidation by-products. It is a kind of water treatment method with great prospect. The removal capacity of organic matter by catalytic oxidation of honeycomb ceramics was higher than that by ozone oxidation. The maximum removal rate of FP was about 2 times higher than that of ozonation. In the continuous flow test, the removal effect of catalytic oxidation on UV2s4 is obvious at low ozone dosage, and the removal rate of UV2s4 is 16.7% higher than that of ozone at 1 mg/L, which is the result of the high proportion of horizontal push flow in the honeycomb ceramic catalytic reactor and the rapid increase of liquid phase ozone concentration. In addition, the catalytic oxidation of honeycomb ceramics on BrO; When ozone dosage is L mg/L, catalytic oxidation effluent BrO; The content is 38.8% lower than that of ozone oxidation. activated carbon wholesale Activated carbon catalyst can promote the decomposition of ozone. The consumption rate of liquid phase ozone in activated carbon catalytic secondary oxidation process is 71.2% higher than that in ozone secondary oxidation process. The analysis of the relationship between ozone consumption and organic matter content in activated carbon catalytic secondary oxidation process shows that activated carbon can react directly with ozone or act as a free radical initiator in the process of ozone decomposition, especially when the organic matter content in water is low. When ozone dosage is L mg/L, the MIB removal rate of catalytic secondary oxidation is about L times higher than that of ozone secondary oxidation. When the concentration of ozone in water is about 1.5 mg/L, the catalytic secondary oxidation makes BrO; The concentration decreased by 0.04mg/L.   activated carbon for gold recovery