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Method for removing residual tetracycline in water by adsorption method

A tetracycline, water removal technology, applied in the direction of adsorption water/sewage treatment, chemical instruments and methods, water pollutants, etc., can solve the problems that have not been overcome, and achieve the effect of convenient operation, small investment and simple process

Inactive Publication Date: 2018-03-13
NINGXIA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There is currently no method to overcome the above drawbacks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: a kind of method utilizing adsorption method to remove residual tetracycline in water, this method is to get the water liquid of residual tetracycline, pH is 5, and tetracycline content is 400mg / L, and its processing process is: take the water of residual 400mg / L tetracycline solution 1000ml, add 4g loading 3.8% Cu 2+ The modified resin is adsorbed at room temperature for 25 hours, centrifuged, and the residual tetracycline content in the liquid phase is detected by high performance liquid chromatography, and the removal rate of tetracycline in water is 97%.

Embodiment 2

[0031] Embodiment 2: A method for removing residual tetracycline in water by adsorption, the method is to take the aqueous solution of residual tetracycline, the pH is 7, and the tetracycline content is 300mg / L. The treatment process is as follows: take 1000ml of aqueous solution with residual 300mg / L tetracycline, add 6g of 18.0% Zn 2+ modified resin. Adsorbed at room temperature for 19 hours, centrifuged, and detected the residual tetracycline content in the liquid phase by high performance liquid chromatography, the removal rate of tetracycline in water was 98%.

Embodiment 3

[0032] Embodiment 3: A method for removing residual tetracycline in water by adsorption, the method is to take the aqueous solution of residual tetracycline, the pH is 6, and the tetracycline content is 100mg / L. The treatment process is as follows: take 1000ml of aqueous solution with residual 100mg / L tetracycline, add 4g of loaded 3.2% Cu 2+ modified resin. Adsorbed at room temperature for 21 hours, centrifuged, and detected the residual tetracycline content in the liquid phase by high performance liquid chromatography, the removal rate of tetracycline in water was 99%.

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Abstract

The invention relates to a method for removing residual tetracycline in water, in particular to a method for removing the residual tetracycline in water by an adsorption method. The method comprises the following steps: S1, pretreating resin to remove impurities; S2, modifying the resin obtained in the step S1 to obtain metal ion-loaded resin; S3, adding the metal ion-loaded resin obtained in thestep S2 into residual tetracycline containing water, and adsorbing for 17-25 hours at room temperature and at the pH of 4-8; S4, centrifuging a solid-liquid system obtained in the step S3, and detecting the content of the residual tetracycline in a liquid phase by high performance liquid chromatography. The method is simple, convenient, relatively low in cost and stable in effect; by the method, recyclability is achieved; the method is suitable for removal of the residual tetracycline in any aqueous solution.

Description

technical field [0001] The invention relates to a method for removing residual tetracycline in water, in particular to a method for removing residual tetracycline in water by an adsorption method. Background technique [0002] Tetracycline antibiotics are a class of broad-spectrum antibiotics produced by actinomycetes, including aureomycin, oxytetracycline, tetracycline, etc. They are mainly used for the prevention and treatment of human and animal diseases, as well as feed additives to promote animal growth. Tetracycline antibiotics have a dodecahydrotetraphenylene structure, which mainly prevents the growth and metabolism of bacteria by inhibiting the synthesis of bacterial proteins. [0003] Tetracycline is one of the most widely used antibiotics in the world. Similar to other antibiotics, only a small part of tetracycline is metabolized in the digestive tract of animals, and most of it is excreted in feces or urine in the form of a mixture of parent compounds and metabol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F101/38
CPCC02F1/288C02F2101/38
Inventor 马玉龙武峰宋智徐嫚
Owner NINGXIA UNIVERSITY
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