Method for degrading tetracycline by using minerals

Abstract

The invention discloses a method for degrading tetracycline by using minerals. The method comprises the following steps that 1, a hydrochloric acid solution of tetracycline is prepared; 2, the minerals and the hydrochloric acid solution of tetracycline are mixed; and 3, tetracycline is degraded under the microwave action. The degradation method provided by the invention is simple and easy to implement, the conditions are mild, and control is easy. By means of the method, the degradation efficiency is 85% or above, especially the degradation amount of the tetracycline by minerals per unit is large and can reach 20-22mg / g, consumption of raw materials is greatly reduced, and cost is lowered. Moreover, the method can be carried out at a wide microwave frequency band and is particularly suitable for being carried out at high frequency.

Description

Technical field [0001] The present invention relates to the field of tetracycline degradation, in particular to the degradation of tetracycline by minerals. Background technique [0002] Tetracycline is currently the most widely used antibiotic in my country. At least 50% of antibiotics are used in animal husbandry and aquaculture every year in the world. A considerable part of antibiotics are directly excreted in feces and urine in the form of metabolites or in the original. Into the environment, the presence of antibiotics is now detected in many parts of the world. my country is a big country in the production and use of antibiotic drugs. According to statistics, my country’s annual production of antibiotic raw materials is about 2.1×105t. Antibiotics that cannot be fully absorbed by humans or animals are excreted in feces and urine in the form of metabolites, resulting in persistent organic pollution. The form of substances exists in the environment, which has an adverse effec...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN 104941621 A discloses a composite photocatalyst for efficiently degrading antibiotics and its preparation method and application. The composite photocatalyst can catalyze and degrade antibiotics under visible light. suitable for practical application

[0004] Chinese patent CN 105502775 A discloses a process for degrading antibiotic wastewater, including steps such as adding persulfate, adjusting pH, first ultraviolet irradiation, adding thiosulfate, and second ultraviolet irradiation. The antibiotics in the medium are degraded, but the degradation process is very complicated

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