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Method for facilitating removal of radiation of sulfanilamide antibiotic in waste water by utilizing ferrous ions

A technology of ferrous ions and sulfonamides, which is applied in the field of nuclear technology application and environmental protection, can solve the problems of high pH requirements of solutions and increased processing costs, and achieve the effects of environmental protection, reduced processing costs, and improved processing efficiency

Active Publication Date: 2013-12-25
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used advanced oxidation techniques include the Fenton method and the combination of the Fenton method and other techniques, but they have higher requirements on the pH of the solution, and at the same time H 2 o 2 The addition of will greatly increase the processing cost

Method used

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  • Method for facilitating removal of radiation of sulfanilamide antibiotic in waste water by utilizing ferrous ions
  • Method for facilitating removal of radiation of sulfanilamide antibiotic in waste water by utilizing ferrous ions
  • Method for facilitating removal of radiation of sulfanilamide antibiotic in waste water by utilizing ferrous ions

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Experimental program
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Effect test

Embodiment 1

[0023] Sulfadiazine (SD) solution is prepared from analytical reagent and deionized water, the concentration is 20mg / L, the pH is not adjusted (pH5.5-6.5); ferrous sulfate (FeSO 4 ) Using analytical reagents, the mixed solution of sulfadiazine and ferrous sulfate was prepared from deionized water, the concentration of SD was 20mg / L, FeSO 4 The concentration is 0.4mM. The radiation source is from the Institute of Nuclear Energy and New Energy Technology of Tsinghua University. 60 Co radiation device, the central channel dose rate is 320.93Gy / min. In the experiment, 30mL solution was taken each time, put into a 50mL radiation-resistant tube, and placed in the central hole for irradiation. The experiment tested the effect of ion irradiation on the removal of sulfadiazine in two solutions under different absorbed doses (lower dose). The irradiation results are shown in Table 1.

[0024] Table 1 The removal effect of SD under different doses

[0025]

[0026] Detection meth...

Embodiment 2

[0029] Sulfamethazine (SMT) solution is prepared from analytical reagent and deionized water, the concentration is 20mg / L, the pH is not adjusted (pH6.0-7.0); ferrous sulfate (FeSO 4 ) using analytical reagents, a mixed solution of sulfamethazine and ferrous sulfate was prepared from deionized water, the concentration of SMT was 20mg / L, FeSO 4 The concentration is 0.4mM. The radiation source is from the Institute of Nuclear Energy and New Energy Technology of Tsinghua University. 60 Co radiation device, the central channel dose rate is 320.93Gy / min. In the experiment, 30mL solution was taken each time, put into a 50mL radiation-resistant tube, and placed in the central hole for irradiation. The experiment tested the effect of ion irradiation on the removal of sulfamethazine in two solutions under different absorbed doses (lower dose). The irradiation results are shown in Table 2.

[0030] The removal effect of SMT under the different doses of table 2

[0031]

[0032] ...

Embodiment 3

[0035] Sulfadiazine (SD) solution is prepared from analytical reagent and deionized water, the concentration is 20mg / L, the pH is not adjusted (pH5.5-6.5); ferrous sulfate (FeSO 4 ) Using analytical reagents, the mixed solution of sulfadiazine and ferrous sulfate was prepared from deionized water, the concentration of SD was 20mg / L, FeSO 4 The concentrations were 0.1 mM, 0.2 mM, 0.4 mM and 0.6 mM, respectively. The radiation source is from the Institute of Nuclear Energy and New Energy Technology of Tsinghua University. 60 Co radiation device, the central channel dose rate is 320.93Gy / min. In the experiment, 30mL solution was taken each time, put into a 50mL radiation-resistant tube, and placed in the central hole for irradiation. The experiment tested the effect of ion irradiation on the removal of sulfadiazine in solution under different conditions (lower dose) under different absorbed doses. The irradiation results are shown in Table 3.

[0036] The removal effect of SD...

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Abstract

The invention belongs to the field of nuclear technology application and environmental technology protection, and discloses a method for facilitating removal of irradiation of organic pollutants in waste water by adding ferrous ions. The method is applied to treatment of sulfanilamide antibiotic waste water. The method applies an ionizing radiation technique, adds the ferrous ions, and combines a Fenton oxidation method, so that the generation quantity of .OH is increased, the reaction efficiency is improved, the absorption dose required by the removal of the irradiation of antibiotic is reduced, and the energy consumption is reduced greatly. In addition, the method utilizes H2O2 generated in a water radiation decomposition process, and additional addition is not required, so that the cost is lowered. The method is simple in technology, easy and simple to operate, low in energy consumption and low in cost; the method is high-efficiency, rapid, economically feasible, and free from secondary pollution when the method is used for treating the sulfanilamide antibiotic waste water; and the method has wide application prospects in waste water treatment and environmental protection.

Description

technical field [0001] The invention belongs to the technical field of nuclear technology application and environmental protection, and specifically relates to a method for removing sulfonamide antibiotics in waste water by combining ionizing radiation technology and ferrous ions. Background technique [0002] In recent years, antibiotics have been widely used by humans in agriculture, animal husbandry production and human life and health maintenance. However, these used or unused antibiotics will enter water bodies through various channels, posing a threat to the environment and human life. Sulfonamide antibiotics are a kind of synthetic broad-spectrum antibiotics. As competitive inhibitors of dihydrofolate synthase, they can hinder the synthesis of folic acid, thereby interfering with the synthesis of DNA, so as to achieve antibacterial effect. It is the most widely used and used in production and life. Due to its long residence time in water, it is difficult to degrade,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/30C02F1/70C02F101/38
Inventor 王建龙刘元坤
Owner TSINGHUA UNIV
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