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Method of removing sulfonamide antibiotics in water by utilizing ionization radiation technology

A technology of ionizing radiation and sulfonamide, which is applied in the field of nuclear technology application and environmental protection, can solve the problems of secondary pollution, high pH requirements, and increased processing cost, and achieves the effects of rapid removal, simple and feasible method, and fast reaction speed.

Inactive Publication Date: 2014-01-01
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conventional advanced oxidation methods, such as Fenton method and Fenton-like method, have higher requirements on the pH of the solution, and at the same time, Fenton reagent must be added, which is prone to secondary pollution
while H 2 o 2 The addition of , also greatly increases the processing cost

Method used

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  • Method of removing sulfonamide antibiotics in water by utilizing ionization radiation technology
  • Method of removing sulfonamide antibiotics in water by utilizing ionization radiation technology
  • Method of removing sulfonamide antibiotics in water by utilizing ionization radiation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The sulfamethazine (SMT) solution is prepared with analytical reagents and deionized water, with a concentration of 20mg / L, pH is not adjusted (pH5.5-6.5), and the radiation source is from the Institute of Nuclear and New Energy Technology of Tsinghua University 60 Co radiation device, the center hole dose rate is 339Gy / min. In the experiment, 30mL of the solution was taken each time, put into a 50mL radiation resistant tube, and placed in the central channel for irradiation. Experiments have tested the effect of radiation on the removal of sulfamethazine under different doses (lower doses). The results are shown in Table 1.

[0022] Table 1 SMT removal effect under different dosages

[0023] Dose (Gy)

SMT removal rate (%)

0

0

200

42.3

400

65.4

600

81.2

800

90.7

1000

95.2

[0024] Detection method: use high performance liquid chromatography (Agilent1200Series, Agilent, USA) to determine.

[0025] The results in Table 1 show that irradiation has a good effect on th...

Embodiment 2

[0027] Sulfamethazine (SMT) solution is prepared with analytical reagents and deionized water, with a concentration of 20 mg / L. One group had no pH adjustment (pH5.5-6.5), one group was adjusted with HCl to adjust the pH of the solution to 3.0; the other group was adjusted with NaOH to adjust the pH of the solution to 12.0. The radiation source is from the Institute of Nuclear and New Energy Technology, Tsinghua University 60 Co radiation device, the dose rate of the center hole is 110Gy / min. In the experiment, 30 mL of the solution was taken each time, placed in a 50 mL radiation resistant tube, and placed in the central channel for irradiation. The experiment tested the removal effect of sulfamethazine by irradiation with solutions of different pH and different dosages. The results are shown in Table 2.

[0028] Table 2 SMT removal effect under different dosages and pH values

[0029]

[0030]

[0031] Detection method: use high performance liquid chromatography (Agilent1200Ser...

Embodiment 3

[0034] Sulfamethazine (SMT) solution is prepared with analytical reagents and deionized water, with concentrations of 10, 20, and 50 mg / L, pH is not adjusted (pH 5.5-6.5), and the radiation source is Tsinghua University Nuclear Energy and New Energy Institute of Technology 60 Co radiation device, the dose rate of the center hole is 110Gy / min. In the experiment, 30 mL of the solution was taken each time, placed in a 50 mL radiation resistant tube, and placed in the central channel for irradiation. Experiments have tested the removal effect of sulfamethazine by ion irradiation for solutions with different pollutant concentrations at different doses. The results are shown in Table 3.

[0035] Table 3 SMT removal effect at different doses and initial concentrations

[0036]

[0037] Detection method: use high performance liquid chromatography (Agilent1200Series, Agilent, USA) to determine.

[0038] The results in Table 3 show that ion irradiation has a good effect on the removal of sul...

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Abstract

The invention discloses a method of removing sulfonamide antibiotics in water by utilizing an ionization radiation technology, belonging to the technical field of nuclear technology application and environmental protection. The method can be used for effectively removing sulfonamide antibiotic drugs (for example sulfamethazine) in water without adjusting pH of wastewater and adding any chemical agent by applying the ionization radiation (high-power electron beams generated by electron accelerator or gamma rays generated by a radioactive source) technology. The method disclosed by the invention is simple, effective, easy to operate and can be used for treating antibiotic wastewater.

Description

Technical field [0001] The invention belongs to the field of nuclear technology application and environmental protection technology, and specifically relates to a method for removing sulfonamide antibiotics in water by using ionizing radiation technology. Background technique [0002] Antibiotics play an important role in human health, fishery and animal husbandry production. However, the unused, metabolic residues and the antibiotics discharged into the water environment during the production process, if not properly treated, will affect the environment and ecology after entering the water body. Sulfa drugs are a class of synthetic broad-spectrum antibiotics with a wide range of applications and large dosages. Among them, sulfamethazine is one of the most commonly used drugs. It stays in the water environment for a long time, and can be enriched in organisms through the food chain, causing microbial resistance and harming human health. Due to its non-degradability and easy mig...

Claims

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Application Information

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IPC IPC(8): C02F1/48C02F1/72C02F101/38
Inventor 王建龙刘元坤
Owner TSINGHUA UNIV
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