Method for removing trace medicine in water by using sludge-based activated carbon to catalyze ozone for oxidation
An ozone oxidation and activated carbon technology, applied in chemical instruments and methods, oxidized water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as low concentration and pollutant pollution, achieve efficient removal, and reduce preparation costs , active effect
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specific Embodiment approach 1
[0013] Specific implementation mode 1: Catalytic ozonation water treatment method in this implementation mode: the polluted water body is first subjected to coagulation-sedimentation pretreatment, then catalytic ozonation treatment, and then the water is post-treated; sludge-based activated carbon catalytic ozonation water treatment In the method, the dosage of ozone is 2.7-3.3mg / L, the dosage of catalyst is 20-30mg / L, the contact time between ozone, catalyst and polluted water is 30-40min, and the concentration of traditional Chinese medicine pollutants in polluted water is 300-700μg / L range, the pH of the polluted water body is in the range of 6-8, in which the catalyst sludge-based activated carbon is the residual sludge of the municipal sewage plant, after mixing corncobs and activators, it is soaked, dried, activated at high temperature, and washed with acid and water and other steps are prepared.
[0014] The sludge-based catalytic ozonation reaction system used in this...
specific Embodiment approach 2
[0015] Embodiment 2: This embodiment differs from Embodiment 1 in that the ozone dosage is 1.8-2.2 mg / L, and other modes are the same as Embodiment 1.
[0016] In this embodiment, the removal efficiency of trace drug ibuprofen in water is 80%.
specific Embodiment approach 3
[0017] Embodiment 3: This embodiment differs from Embodiment 1 in that the dosage of the sludge-based activated carbon catalyst is 95-105 mg / L, and other methods are the same as Embodiment 1.
[0018] In this embodiment, the removal efficiency of trace drug ibuprofen in water is greater than 99.9%.
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