The water purification performance of catazone-GAC filtration process wasbetter than its countcrpart. The UV2s4 removal rate of catazonc subsequent GACand ozonation subsequent GAC was 30%and 21% respectively，at an dissolvedozone concentration of o~1.0 mg/L and influent UV2s4 of 0.020-0.030 1/cm.coconut shell activated carbon price

TheUV2s4 and DoC decreasing effect of GAC filtration was most obvious when bothinfluent organic content and dissolved ozoneconcentration were in their moderatelevels，and the highest DoC removal efficiency of GAC filtration appeared at aspecific dissolved ozone dose (O;/DOC) of 0.3. Organic and ozone concentrationwere both lower in the influent of GAC following catazone,which was helpful tothe maintenance of adsorption capacity and the delay of surface oxidation.Moreover, metal oxides eluted from catalyst may be adsorbed by GAC, contributingto the decomposition of ozone on GAC surface.coconut shell carbon

Heavy machinery is for activated carbon, iron and steel, non-ferrous metals, chemical industry, building materials and nuclear industry and other departments of heavy mining and deep processing of raw materials, as well as for railway, highway, hydropower and other large projects to provide advanced, efficient technical equipment.According to the formation mechanism of NOx, the formation of NOx in the process of coal combustion can be divided into three categories: thermal NOx, used to refer to the formation of NOx by the oxidation of N in the air, mainly in the high temperature area of 1800K;
Fast type NOx, is in the air equivalent ratio of 1.0~1.4 in front of the flame belt, from the air of N and hydrogen activated carbon formed by the decomposition of hydrocarbons (CH, CH, etc.) through a series of reactions generated;times higher than that of ozonation in batch experiment. The advantage of CHcatazone on UV2s4 removal was more pronounced at lower ozone dose incontinuous flow experiment,and at an ozone dose of 1 mg/L, the UVzs4 removalrate of CH catazone was 16.7% higher than that of ozonation，which was the resultof the larger portion of plug flow and faster increase of dissolved ozoneconcentration in CH contactor. The BrO; was better controlled by CH catazone,and the BrO;concentration was 38.8% lower in CH catazone effluent comparingwith that of ozonation at an ozone dose of 1 mg/L.