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Method for removing tetracycline in wastewater by virtue of magnetic composite adsorbent

A composite adsorption and tetracycline technology, applied in the direction of adsorption of water/sewage treatment, chemical instruments and methods, water pollutants, etc., can solve the problems of difficult recovery, small powder particles, easy loss of materials, etc., to achieve easy recycling, easy separation, The effect of mitigating the damage to the ecological environment

Active Publication Date: 2017-09-15
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although biochar adsorbents have certain advantages, there are also problems such as small powder particles, easy loss of materials, and difficulty in recycling.

Method used

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  • Method for removing tetracycline in wastewater by virtue of magnetic composite adsorbent
  • Method for removing tetracycline in wastewater by virtue of magnetic composite adsorbent
  • Method for removing tetracycline in wastewater by virtue of magnetic composite adsorbent

Examples

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Embodiment 1

[0033] A kind of magnetic composite adsorbent of the present invention removes the method for tetracycline in waste water, comprises the following steps:

[0034]Add magnetic composite adsorbent to the waste water that tetracycline initial concentration is 400mg / L, the adsorbent addition amount in every liter of waste water is 0.2g, adjust the pH of reaction system with 0.1mol / L NaOH solution or HCl solution to be 6.0, in At room temperature (usually within the range of 10°C to 40°C), put it in a shaker for 24 hours of shaking reaction, the shaker speed is 150rpm, after the reaction is completed, use a magnet to absorb the magnetic composite adsorbent, separate the adsorbent and waste water, and complete Treatment of tetracyclines in wastewater.

[0035] In this example, the magnetic composite adsorbent is prepared by the following method:

[0036] (1) Preparation of biochar: dry the collected betel nut slag and crush it with a pulverizer for 30 seconds; place the pulverized ...

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Abstract

The invention discloses a method for removing tetracycline in wastewater by virtue of a magnetic composite adsorbent. The method comprises the following steps: adding a self-made magnetic composite adsorbent into wastewater containing tetracycline so as to react, wherein pH value of a reaction system is 3-7; and after the reaction is finished, separating and recycling the magnetic composite adsorbent from the wastewater under the action of an applied magnetic field, so as to finish the removal of tetracycline in the wastewater. The method has the beneficial effects that the adsorption capacity is large, the adsorption speed is high, tetracycline in the wastewater can be powerfully removed, and the adsorbent is easily separated and recycled.

Description

technical field [0001] The invention belongs to the technical field of antibiotic wastewater treatment, and in particular relates to a method for removing tetracycline in wastewater by a magnetic composite adsorbent. Background technique [0002] Antibiotics are widely used in livestock and poultry breeding and human disease control because of their high antibacterial properties and low side effects. According to statistics, the consumption of antibiotics in my country in 2013 exceeded 162,000 tons, accounting for 50% of the world's consumption. A large number of antibiotics use and incomplete metabolism make a large number of antibiotics enter the soil and water in the agricultural ecosystem with excrement. In recent years, the problems of plant photosynthetic system disorder caused by antibiotic pollution, mediating microbial metabolism, and inducing microbial resistance genes and resistant bacteria have attracted more and more attention. These problems will pose a seriou...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/34C02F101/38
CPCB01J20/041B01J20/06B01J20/20B01J20/28009B01J20/28059B01J2220/4825B01J2220/4875C02F1/281C02F2101/34C02F2101/38
Inventor 陈安伟尚翠秦普丰邵继海雷鸣张嘉超
Owner HUNAN AGRICULTURAL UNIV
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