Method for removing antibacterial chemicals out of water by activating monopotassium persulfate by ordered mesopore magnesium oxide-loaded cobaltosic oxide
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A technology of tricobalt tetroxide and potassium monopersulfate, which is applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, oxidized water/sewage treatment, etc., can solve the problems of low efficiency, achieve rich pore structure, The effect of strong activation performance and large specific surface area
Inactive Publication Date: 2017-05-31
ZHEJIANG UNIV OF TECH
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[0004] The object of the invention is to solve the problem of nano Co 3 o 4 The problem of low efficiency in the process of activating monopersulfate is to develop a method of using ordered mesoporous magnesia to load cobalt tetroxide to activate potassium monopersulfate to remove antibacterial drugs from water
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specific Embodiment approach 1
[0047] Specific embodiment one: In this embodiment, a method for utilizing ordered mesoporous magnesium oxide to load tricobalt tetroxide to activate potassium monopersulfate to remove antibacterial drugs in water is carried out according to the following steps:
[0048] (1) Preparation of CMK-3
[0049] ① The template SBA-15 was fully mixed with sulfuric acid aqueous solution containing sucrose, dried at 100 °C for 5 h, and then dried at 160 °C for 5 h to obtain a solid powder;
[0050] The quality of the template SBA-15 described in step ① is 1 g;
[0051] The quality of the sucrose described in step 1. is 1.25 g;
[0052] The sulfuric acid quality described in step 1. is 0.14 g;
[0053] The quality of the water described in step 1. is 5 g;
[0054] ② Fully grind the solid powder obtained by drying in step ①, fully mix it with an aqueous sucrose solution, dry at 100 °C for 5 h, and then dry at 160 °C for 5 h to obtain a solid powder;
[0055] The quality of the sucrose ...
specific Embodiment approach 2
[0091] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the concentration of the target pollutant enrofloxacin in step (4) is 5-10 mg / L, and other steps and parameters are the same as Embodiment 1.
specific Embodiment approach 3
[0092] Specific embodiment 3: The difference between this embodiment and specific embodiments 1 to 2 is that the concentration of the target pollutant enrofloxacin in step (4) is 10-20 mg / L, and other steps and parameters are the same as those of specific embodiments 1 to 2 One is the same.
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Abstract
The invention discloses a method for removing antibacterial chemicals out of water by activating monopotassium persulfate with ordered mesoporous magnesium oxide-loaded cobaltosic oxide. The method comprises the following operating steps: preparing a cobaltosic oxide / ordered mesoporous magnesium oxide composite material; preparing a solution having a certain concentration and containing the antibacterial chemicals; adding cobaltosic oxide / ordered mesoporous magnesium oxide, and mixing and stirring the mixture for a while to achieve adsorption equilibrium; adding monopotassium persulfate; and separating the cobaltosic oxide / ordered mesoporous magnesium oxide composite material through centrifugalization or filtration to achieve the method for removing antibacterial chemicals out of water by activating monopotassium persulfate with ordered mesoporous magnesium oxide-loaded cobaltosic oxide. According to the method disclosed by the invention, efficient treatment of the antibacterial chemicals in water can be achieved, and the removal rate exceeds 95%; in a using process, the cobalt ion dissolving concentration is lower than that of nano cobaltosic oxide, so that the environmental pollution is reduced; the cobaltosic oxide / ordered mesoporous magnesium oxide composite material can be separated through centrifugalization or filtration and is recycled, and thus the operating cost is lowered.
Description
technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a method for removing antibacterial drugs in water, in particular to a method for removing antibacterial drugs in water by using ordered mesoporous magnesium oxide to load tricobalt tetroxide to activate potassium monopersulfate. Background technique [0002] Pharmaceuticals and Personal Care Products (PPCPs) have become a new kind of environmental pollutants, which have been detected in groundwater, surface water, soil and other environmental media, and have been proven to cause certain harm to the environment and human health. hazards. Enrofloxacin (ENR) is a quinolone antibacterial drug widely used in the treatment of human and animal diseases. After the residual enrofloxacin enters the human body, it will cause toxic and side effects to the human body and greatly enhance the drug resistance of human pathogenic bacteria. On the other hand, after animals ingest ...
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