Protective Agent for Ozone Oxidation Catalyst Used in Degradation of Organic Wastewater
A technology for ozone oxidation and organic wastewater, applied in catalyst protection, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of rising bed pressure in the tower and lack of catalytic function , tower operation resistance increase and other problems, to achieve the effect of reducing tower operation resistance, reducing pressure drop, and ensuring normal operation
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Embodiment 1
[0020] Example 1, the raw material is composed of 6wt% composite active component (manganese dioxide-cobalt oxide-rare earth oxide), 43wt% fly ash, 2wt% activated carbon powder pore-forming agent, 47wt% kaolin, 2wt% methyl cellulose viscose It is composed of a binder, and an ozone oxidation catalyst protective agent for degrading organic wastewater is prepared through processes such as synthesis, kneading, pelletization, drying, sieving, and calcination. The composite active component is synthesized by the following co-precipitation method: prepare a precursor mixed solution with manganese nitrate, cobalt nitrate, lanthanum nitrate, and pure water, use sodium hydroxide solution as a precipitant, adjust the pH value to make the precursor co-precipitate completely, Wash with pure water and filter the coprecipitate to filtrate Na + Until the concentration reaches 40mg / L, the co-precipitate is dried at 110°C to obtain a composite active component. The protective agent meets the pe...
Embodiment 2
[0022] Example 2: The raw material is composed of 7wt% composite active component (manganese dioxide-cobalt oxide-rare earth oxide), 41wt% fly ash, 3wt% activated carbon powder pore-forming agent, 48wt% kaolin, 1wt% methyl cellulose viscose It is composed of a binder, and an ozone oxidation catalyst protective agent for degrading organic wastewater is prepared through processes such as synthesis, kneading, pelletization, drying, sieving, and calcination. The protective agent reaches the following performance indicators in Table 2:
[0023] Protective agent model
Embodiment 3
[0024] Embodiment 3: The raw material is composed of 8wt% composite active component (manganese dioxide-cobalt oxide-rare earth oxide), 40wt% fly ash, 4wt% activated carbon powder pore-forming agent, 45wt% kaolin, 3wt% methyl cellulose viscose It is composed of a binder, and an ozone oxidation catalyst protective agent for degrading organic wastewater is prepared through processes such as synthesis, kneading, pelletization, drying, sieving, and calcination. The protective agent reaches the following performance indicators in Table 3:
[0025] Protective agent model
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