Powder catalyst ozone catalytic oxidation wastewater treatment system
A technology of ozone catalytic oxidation and wastewater treatment system, which is applied in the direction of oxidized water/sewage treatment, water/sewage treatment, water/sludge/sewage treatment, etc. The pollution degree is reduced, the membrane effluent flux is increased, and the effect of avoiding loss
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Embodiment 1
[0032] Taking the effluent of a coking wastewater secondary sedimentation tank as raw water, COD is about 68mg / L, it enters the reactor from the lower water inlet 1, and the ozone gas is generated by the ozone generator 2 and then enters the reactor through the microporous aeration plate 3 to form microbubbles 10. The ozone concentration is 80mg / L, and the gas volume is 0.6L / min. The powder catalyst 9 is prepared with γ-alumina as the carrier and iron oxide as the active component. The average particle size of the powder catalyst is 25μm. The dosage is 10g / L.
[0033] Under the joint action of water flow and microbubbles 10, the powdered catalyst turns up and down in the reactor and contacts and reacts with ozone and water pollutants, and the remaining ozone gas is connected to the exhaust gas destroyer from the gas discharge port 7 to be decomposed and emptied.
[0034] The flat ceramic membrane module 4 is located above the reactor, but submerged below the water level 8 in t...
Embodiment 2
[0036] Taking the effluent of a coking wastewater secondary sedimentation tank as raw water, COD is about 68mg / L, it enters the reactor from the lower water inlet 1, and the ozone gas is generated by the ozone generator 2 and then enters the reactor through the microporous aeration plate 3 to form microbubbles 10. The ozone concentration is 120mg / L, and the gas volume is 0.6L / min. The powder catalyst 9 is prepared with γ-alumina as the carrier and iron oxide as the active component. The average particle size of the powder catalyst is 25μm. The dosage is 10g / L.
[0037] Under the joint action of water flow and microbubbles 10, the powder catalyst turns up and down in the reactor and reacts with ozone and water pollutants, and the remaining ozone gas is connected to the exhaust gas destroyer from the gas discharge port 7 to be decomposed and emptied.
[0038] The flat ceramic membrane module 4 is located above the reactor, but submerged below the water level 8 in the reactor, an...
Embodiment 3
[0040] Taking the effluent of a coking wastewater secondary sedimentation tank as raw water, COD is about 68mg / L, it enters the reactor from the lower water inlet 1, and the ozone gas is generated by the ozone generator 2 and then enters the reactor through the microporous aeration plate 3 to form microbubbles 10. The ozone concentration is 80mg / L, and the gas volume is 0.6L / min. The powder catalyst 9 is prepared with γ-alumina as the carrier and iron oxide as the active component. The average particle size of the powder catalyst is 25μm. The dosage is 15g / L.
[0041] Under the joint action of water flow and microbubbles 10, the powder catalyst turns up and down in the reactor and reacts with ozone and water pollutants, and the remaining ozone gas is connected to the exhaust gas destroyer from the gas discharge port 7 to be decomposed and emptied.
[0042] The flat ceramic membrane module 4 is located above the reactor, but submerged below the water level 8 in the reactor, and...
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