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Degradation method for sulfadimidine in water

A technology of sulfamethazine and water body, which is applied in the field of degradation of antibiotic organic pollutants in water body, can solve the problems of difficult load degradation treatment, unsatisfactory treatment effect, complicated process, etc., and achieve improved recyclability, low cost, and high preparation process simple effect

Inactive Publication Date: 2019-08-27
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Different from biomass, biochar has high stability and often contains a large number of aromatic ring structures in its structure. It often shows excellent adsorption performance for heavy metals and organic pollutants in the environment. The treatment effect of pyrazine degradation is not ideal, the process of existing treatment methods is complicated, and the effect is poor, it is difficult to carry out the task of degradation treatment of sulfamethazine organic pollutants in water bodies

Method used

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  • Degradation method for sulfadimidine in water
  • Degradation method for sulfadimidine in water
  • Degradation method for sulfadimidine in water

Examples

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Embodiment 1

[0031] In this embodiment, a method for degrading sulfamethazine in a water body uses a biochar adsorption material and strengthens the degradation of the sulfamethazine sulfamethazine in the water body through auxiliary electron beam irradiation, including the following steps:

[0032] a. Preparation of synthetic biochar adsorption material:

[0033] a-1. Preparation of biochar carrier:

[0034] Using rice stalk, rice husk and corn dregs as the initial raw materials, according to the mixing mass ratio of rice stalk, rice husk and corn dregs of 1:1:1, mix the rice stalk, rice husk and corn dregs, wash 4 times with water , after removing the adherents on the surface of the raw material mixture, air-dry for 2 days, and dry overnight in an oven at 80°C, after crushing, pass through a sieve with a pore size of 0.154mm to obtain a biomass powder material;

[0035] Then weigh 20g of the biomass powder material that has passed through the sieve, put it into the crucible, cover it ag...

Embodiment 2

[0050] This embodiment is basically the same as Embodiment 1, especially in that:

[0051] In this embodiment, a method for degrading sulfamethazine in a water body uses a biochar adsorption material and strengthens the degradation of the sulfamethazine sulfamethazine in the water body through auxiliary electron beam irradiation, including the following steps:

[0052] a. Preparation of synthetic biochar adsorption material:

[0053] a-1. Preparation of biochar carrier:

[0054] Using rice straw, chaff and corn dregs as initial raw materials, according to the mixing mass ratio of rice straw, chaff and corn dregs of 1:2:1, mix rice straw, chaff and corn dregs, wash 4 times with water , after removing the adherents on the surface of the raw material mixture, air-dry for 2 days, and dry overnight in an oven at 80°C, after crushing, pass through a sieve with a pore size of 0.154mm to obtain a biomass powder material;

[0055] Then weigh 20g of the biomass powder material that ha...

Embodiment 3

[0067] This embodiment is basically the same as the previous embodiment, and the special features are:

[0068] In this embodiment, a method for degrading sulfamethazine in a water body uses a biochar adsorption material and strengthens the degradation of the sulfamethazine sulfamethazine in the water body through auxiliary electron beam irradiation, including the following steps:

[0069] a. Preparation of synthetic biochar adsorption material:

[0070] a-1. Preparation of biochar carrier:

[0071] Using rice stalk, rice husk and corn dregs as the initial raw materials, according to the mixing mass ratio of rice stalk, rice husk and corn dregs of 2:1:1, mix the rice stalk, rice husk and corn dregs well, and wash 4 times with water , after removing the adherents on the surface of the raw material mixture, air-dry for 2 days, and dry overnight in an oven at 80°C, after crushing, pass through a sieve with a pore size of 0.154mm to obtain a biomass powder material;

[0072] The...

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Abstract

The invention discloses a degradation method for sulfadimidine in water. Biochar made from a biomass raw material is used as a raw material, by loading TiO2, a composite biochar material is prepared,and by utilizing a thermal processing technology, the composite biochar material is converted into a biochar adsorption material; then, with assistance of electron beam irradiation, the synthesized biochar adsorption material is utilized for efficiently degrading the sulfadimidine in a solution, and through irradiation, active free radicals are generated, and the high reduction performance is achieved; the free radicals react with groups and carbon rings of the sulfadimidine, and finally, non-toxic carbon dioxide, nitrogen and water molecules are generated. According to the method, by adding the biochar adsorption material, efficient antibiotic degradation is achieved under the low radiation condition, the electron beam irradiation has a good degradation effect on the sulfadimidine, the demand of the first order kinetics is met, and R is greater than 0.99. The prepared biochar adsorption material has good recycling performance, and the method has the advantages of short consumed degradation time, high recycling performance, low cost and the like.

Description

technical field [0001] The invention relates to a method for degrading antibiotic organic pollutants in water bodies, in particular to a method for degrading antibacterial sulfonamides in water bodies, which is applied to the technical fields of organic pollutant degradation treatment in water bodies and water body ecological restoration. Background technique [0002] Antibiotics, also known as antibiotics (drugs), are secondary metabolites with anti-pathogenic or other activities produced by microorganisms (including bacteria, fungi, actinomycetes) or higher animals and plants in the course of life, which can interfere with other diseases. Chemical substances that function in the development of living cells. Sulfamethazine is an antimicrobial sulfa drug that exhibits dependent pharmacokinetics by inducing CYP3A4 expression and acetylation by N-acetyltransferase, producing metabolic changes through the male-specific isoform CYP2C11 Inhibit dihydrofolate synthase to achieve ...

Claims

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Application Information

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IPC IPC(8): C02F1/28C02F1/30C02F101/38
CPCC02F1/283C02F1/30C02F2101/38C02F2101/40
Inventor 吴明红徐刚汪承伟施文彦李劲松
Owner SHANGHAI UNIV
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