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A kind of preparation method and application method of antibiotic adsorption film

A technology of antibiotics and adsorption membranes, which is applied in the field of preparation of antibiotics adsorption membranes, can solve the problems of poor flocculation effect, low adsorption efficiency, and complicated operation, and achieve the effects of simple operation, high degradation rate, and low purity requirements

Active Publication Date: 2017-12-08
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many technologies about chitosan as a flocculant for pharmaceutical wastewater, but there are generally problems such as poor flocculation effect, low adsorption efficiency, and complicated operation.

Method used

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  • A kind of preparation method and application method of antibiotic adsorption film

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0022] 1. Accurately measure 20ml of glacial acetic acid into a 1000ml volumetric flask, add distilled water to constant volume, and prepare an acetic acid solution with a volume fraction of 2% for later use.

[0023] 2. Take 0.5g of chitosan powder and place it in a 100ml beaker, add 20ml of 2% acetic acid solution, stir with magnetic force until the chitosan is completely dissolved and the solution is transparent, and then make solution A.

[0024] 3. Take 0.05g of lanthanum nitrate and place it in a 100ml beaker, add 20ml of distilled water to completely dissolve the lanthanum nitrate, and make solution B.

[0025] 4. Mix solutions A and B in another 100ml beaker, add 0.8g glycerin, and stir magnetically for 24h. At this time, the mass ratio of chitosan and lanthanum nitrate is 10:1, the mass concentration of glycerin is 2%, the solution volume is 40ml, and the volume of added glycerin is ignored, which is recorded as solution C.

[0026] 5. Place C in an ultrasonic cleane...

specific Embodiment approach 2

[0033] 1. Accurately measure 20ml of glacial acetic acid into a 1000ml volumetric flask, add distilled water to constant volume, and prepare an acetic acid solution with a volume fraction of 2% for later use.

[0034] 2. Take 0.5g of chitosan powder and place it in a 100ml beaker, add 20ml of 2% acetic acid solution, stir with magnetic force until the chitosan is completely dissolved and the solution is transparent, and then make solution A.

[0035] 3. Take 0.10g of lanthanum nitrate and place it in a 100ml beaker, add 20ml of distilled water to completely dissolve the lanthanum nitrate, and make solution B.

[0036] 4. Mix solutions A and B in another 100ml beaker, add 1.6g glycerin, and stir magnetically for 20h. At this time, the mass ratio of chitosan and lanthanum nitrate is 10:1, the mass concentration of glycerin is 4%, the solution volume is 40ml, and the volume of added glycerin is ignored, which is recorded as solution C.

[0037] 5. Place C in an ultrasonic cleane...

specific Embodiment approach 3

[0043] 1. Accurately measure 20ml of glacial acetic acid into a 1000ml volumetric flask, add distilled water to constant volume, and prepare an acetic acid solution with a volume fraction of 2% for later use.

[0044] 2. Take 0.5g of chitosan powder and place it in a 100ml beaker, add 20ml of 2% acetic acid solution, stir with magnetic force until the chitosan is completely dissolved and the solution is transparent, and then make solution A.

[0045] 3. Take 0.15g of lanthanum nitrate and place it in a 100ml beaker, add 20ml of distilled water to completely dissolve the lanthanum nitrate, and make solution B.

[0046]4. Mix solutions A and B in another 100ml beaker, add 2.0g glycerin, and stir magnetically for 18h. At this time, the mass ratio of chitosan and lanthanum nitrate is 10:3, the mass concentration of glycerin is 5%, the solution volume is 40ml, and the volume of added glycerin is ignored, which is recorded as solution C.

[0047] 5. Place C in an ultrasonic cleaner...

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Abstract

The invention discloses a method for preparing an antibiotic adsorption film, and belongs to the technical field of organic-inorganic composite film preparation. The preparation method is as follows: step 1 dissolves soluble chitosan in aqueous solution of glacial acetic acid, which is recorded as solution A; step 2 dissolves lanthanum nitrate in water to form a solution, which is recorded as solution B; step 3 takes a certain amount of solution Mix A and solution B, add glycerin and stir, and record it as solution C; step 4 put solution C in a petri dish, spread it evenly, put the petri dish in a drying oven to dry, and make a dry composite film; step 5, dry The composite membrane is separated from the petri dish to make an antibiotic adsorption membrane. The invention also discloses a method for using the above-mentioned antibiotic adsorption membrane. The usage method is that the antibiotic adsorption membrane is put into antibiotic waste water and stirred. The antibiotic adsorption membrane prepared by the invention has low cost, simple preparation, high degradation rate and convenient use, and is especially suitable for the treatment of antibiotic waste water.

Description

technical field [0001] The invention specifically relates to a method for preparing and using an antibiotic adsorption film, and belongs to the technical field of organic-inorganic composite film preparation. Background technique [0002] Antibiotics are a large class of antimicrobial drugs, which are chemical substances produced by organisms in the metabolic process; after antibiotics are used, most of them are usually excreted with feces in the form of drugs, and the content of antibiotics in the influent and effluent water of sewage treatment plants is very high, resulting in Contaminated by antibiotics, the concentration of antibiotics in large-scale farm animal feces is also high. The use and discharge of antibiotics in farms is one of the important sources of antibiotics in the surface environment. Although antibiotics are released into soil, water and air and redistributed, antibiotics are easily adsorbed and accumulated in soil and water environments, causing damage ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28C02F1/461C02F1/50
Inventor 刘金彦王岩铭袁春华杨卉
Owner INNER MONGOLIA UNIV OF SCI & TECH