Method for degrading tetracycline by using minerals

A tetracycline and mineral technology, applied in the field of tetracycline degradation, can solve the problems of complex degradation process, unsuitable for practical application, and complex methods

Active Publication Date: 2016-10-12
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Method for degrading tetracycline by using minerals
  • Method for degrading tetracycline by using minerals
  • Method for degrading tetracycline by using minerals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] Example 1 Preparation of iron-manganese-potassium

[0132] Take 2.5353g MnSO 4 ·H 2 O and 1.5803gKMnO 4 Dissolve in 50mL and 100mL water respectively to make it completely dissolve, take 0.0405g FeCl 3 ·6H 2 O is soluble in KMnO 4 Dissolve completely in the solution;

[0133] KMnO 4 The solution is added dropwise to MnSO 4 ·H 2 O and FeCl 3 ·6H 2 In the mixed solution of O, magnetically stirred at room temperature for 60 minutes, a brownish-brown precipitate was gradually formed, and the brownish-brown precipitate was placed in a 100mL hydrothermal reactor and reacted at 150°C for 24h;

[0134] After the reaction is completed, natural cooling, centrifugal filtration, washing with water 3 times in sequence, and drying at 80° C., obtain manganese potassium ore.

Embodiment 2

[0135] Example 2 Preparation of iron-doped manganese potassium ore

[0136] Repeat the preparation process of Example 1, the difference is FeCl 3 ·6H 2 The added amount of O is 0.1215g.

Embodiment 3

[0137] Example 3 Preparation of iron-doped manganese potassium ore

[0138] Repeat the preparation process of Example 1, the difference is FeCl 3 ·6H 2 The amount of O added was 0.2027 g.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D3/178A62D101/28A62D101/26
CPCA62D3/178A62D2101/26A62D2101/28
Inventor 幸雪冰吕国诚王小雨马帅飞刘梦刘世媛刘婕媛
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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