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Preparation method and application of antibiotic composite adsorbent

A composite adsorption and antibiotic technology, which is applied in chemical instruments and methods, adsorption water/sewage treatment, and other chemical processes, can solve the problems of antibiotic composite adsorbent invention patents, low adsorption efficiency, and high cost, etc., and achieve Low price, short adsorption time, and the effect of reducing production costs

Inactive Publication Date: 2014-07-23
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there have been many literature reports on antibiotic single adsorption materials, but there are problems such as low adsorption efficiency and high cost, and there are no invention patents and researches on the preparation of antibiotic composite adsorbents using biochar and bentonite as raw materials. reports in literature etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Bentonite (Al) collected from Yanshan, Yunnan 2 O 3 : 16.54%, SiO 2 : 50.95%, CaO: 2.26%) grinding and pulverizing through a 180-mesh sieve to remove larger solid particles to obtain pretreated bentonite;

[0022] (2) drying and pulverizing the pomelo peels through a 180-mesh sieve to obtain pretreated pomelo peels;

[0023] (3) Mix 2g of pretreated bentonite and 2g of pretreated pomelo peel powder (1:1) evenly, put it into a tube furnace, and roast it for 8 hours under the condition of isolating air to obtain a pretreated composite adsorbent, wherein The roasting temperature is 600℃;

[0024] (4) Put the pretreated composite adsorbent into a conical flask and add ZnCl with a concentration of 5% by mass. 2 The solution was 50ml, stirred and mixed, the mixed material was soaked at room temperature for 2 hours, suction filtered, washed with distilled water for 3 times, the filter cake was dried in an oven for 6 hours, and the drying temperature was 70 °C to ob...

Embodiment 2

[0027] (1) Bentonite (Al) collected from Yanshan, Yunnan 2 O 3 : 16.54%, SiO 2 : 50.95%, CaO: 2.26%) grinding and pulverizing through a 180-mesh sieve to remove larger solid particles to obtain pretreated bentonite;

[0028] (2) drying and pulverizing the pomelo peels through a 180-mesh sieve to obtain pretreated pomelo peels;

[0029] (3) Mix 4g of pretreated bentonite and 2g of pretreated pomelo peel powder (2:1) evenly, put it into a tube furnace, and roast it for 3h under the condition of isolating air to obtain a pretreated composite adsorbent, wherein The roasting temperature is 700℃;

[0030] (4) Put the pretreated composite adsorbent into the conical flask and add ZnCl with a concentration of 10% by mass. 2 The solution was 50ml, stirred and mixed, the mixed material was immersed at room temperature for 3 hours, suction filtered, washed with distilled water for 3 times, the filter cake was dried in an oven for 8 hours, and the drying temperature was 70 °C to ob...

Embodiment 3

[0033] (1) Bentonite (Al) collected from Yanshan, Yunnan 2 O 3 : 16.54%, SiO 2 : 50.95%, CaO: 2.26%) grinding and pulverizing through a 190-mesh sieve to remove larger solid particles to obtain pretreated bentonite;

[0034] (2) drying and pulverizing the pomelo peels through a 180-mesh sieve to obtain pretreated pomelo peels;

[0035](3) Mix 6g of pretreated bentonite and 2g of pretreated pomelo peel powder (3:1) evenly, put it into a tube furnace, and roast it for 4h under the condition of isolating air to obtain a pretreated composite adsorbent, wherein The roasting temperature is 700℃;

[0036] (4) Put the pretreated composite adsorbent into a conical flask and add ZnCl with a concentration of 15% by mass. 2 The solution was 50ml, stirred and mixed, the mixed material was immersed at room temperature for 3h, suction filtered, washed with distilled water 4 times, the filter cake was dried in an oven for 8h, and the drying temperature was 70 °C to obtain surface-modif...

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PUM

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Abstract

The invention discloses a preparation method and application of an antibiotic composite adsorbent, aiming at the problem that a great amount of antibiotics exists in pharmaceutical wastewater. The preparation method of the antibiotic composite adsorbent comprises the following steps: mixing reproducible raw material, namely grapefruit peel and flesh with cheap natural mineral bentonite, and heating intensely in a tubular furnace insulated with air by adopting a high-temperature solid phase method; and then compounding a composite adsorbent by a saline solution impregnating method. Taking example for three most commonly seen antibiotics of oxytetracycline, tetracycline and amoxicillin, the prepared composite adsorbent has excellent adsorption effect. Compared with the prior art, the preparation method and the application have the advantages that the used raw material grapefruit peel and flesh are agricultural reproducible wastes; the raw material bentonite is low in price and is easily available; the preparation technology is simple, and can achieve industrial production so as to achieve the aim of reducing waste by waste.

Description

technical field [0001] The invention belongs to the field of preparation of composite adsorbents, in particular to a preparation method and application of a composite adsorbent for antibiotics. Background technique [0002] Antibiotics refer to a class of substances with anti-pathogen or other activities produced by bacteria, molds or other microorganisms in the process of life. Since my country began to produce antibiotics in the early 1950s, the output has increased year by year, and it has now become one of the major producers of antibiotic preparations in the world. At present, there are still many technical difficulties in the selection and production of antibiotics, and the selection of bacterial strains in the production of antibiotics. As a result, there are many problems such as low utilization rate of raw materials, low refining purity, and high residual antibiotic content in wastewater, resulting in serious environmental pollution. The environmental pollution...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F1/58
Inventor 陕绍云和佳媛贾庆明蒋丽红王亚明
Owner KUNMING UNIV OF SCI & TECH
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