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A kind of active carbon material removes the method for processing antibiotic acesulfame

A technology of acesulfame and activated carbon, which is applied in chemical instruments and methods, adsorption water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of high cost, secondary pollution, and limited application of chemical oxidation methods, and achieve the goal of preparing raw materials Cheap and easy to obtain, easy to operate, and the effect of simplifying industrial processing steps

Inactive Publication Date: 2018-01-02
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of the chemical treatment method is that the operation cycle is short and the oxidation is relatively thorough. This method is also more suitable for the treatment of pollutants with relatively high concentrations. However, secondary pollution is easy to occur after chemical oxidation treatment, and the cost of chemical oxidation High, poor applicability, which greatly limits its application in the treatment of environmental pollutants

Method used

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  • A kind of active carbon material removes the method for processing antibiotic acesulfame
  • A kind of active carbon material removes the method for processing antibiotic acesulfame
  • A kind of active carbon material removes the method for processing antibiotic acesulfame

Examples

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Effect test

preparation example Construction

[0026] The preparation and application steps of gac of the present invention are as follows:

[0027] 1. Preparation of activated carbon (AC) material

[0028] (1) Pretreatment of walnut shells: wash walnut shells with water to remove ash and gravel, put them in an oven and dry them at 80-85°C for 48 hours, and crush them to a particle size of 40-120 mesh to obtain walnut shell powder, which is stored in a desiccator spare.

[0029] (2)H 3 PO 4 Preparation of dipping material: Accurately weigh 5g of walnut shell powder that has been pulverized by a pulverizer and put it in a beaker, add 25mL H 3 PO 4 solution, H 3 PO 4 The ratio of walnut shell to mass is (1~4):1. After fully stirring, seal it, soak it in an oven at 90~95°C for 14.5~15.5h, remove the seal, dry it in an oven at 120~125°C for 12~13h, and stir it loosely. For example, stir once every 2 to 3 hours; after drying, H 3 PO 4 Dipping material.

[0030] (3) Preparation of activation material: H 3 PO 4 The im...

Embodiment 1

[0041] Preparation of activated carbon: Accurately weigh 5g of walnut shell powder pulverized by a pulverizer and place it in a beaker, add 25mL H 3 PO 4 solution, H 3 PO 4 The mass ratio of walnut shell to walnut shell is 4:1, fully stirred and then sealed, dipped in an oven at 90°C for 15 hours, removed the seal, dried in an oven at 120°C for 12 hours, and stirred every 2 hours to loosen, and after drying, H 3 PO 4 Dipping material. H 3 PO 4 The impregnated material is moved to the constant temperature section of the tube-type atmosphere furnace, and the temperature is raised to the experimentally set carbonization temperature of 250°C at a rate of 10°C / min. ℃, keep warm for 60min, after the reaction is completed, in N 2 Protect and cool down to room temperature to obtain the activated material, transfer the activated material to a conical flask, add 50mL of 1% HCl solution in mass concentration, place on a shaker and vibrate at 120r / min for 180min for pickling. Then...

Embodiment 2

[0047] In the preparation of H 3 PO 4 Dipping process, H 3 PO 4 The mass ratio to the walnut shell is 2:1, and other conditions and steps are the same as in Example 1 to obtain the target product activated carbon B.

[0048] The target product activated carbon B is used to carry out adsorption treatment and adsorption-catalysis synergistic treatment on acesulfame, the conditions and steps are the same as in Example 1, the removal rate of acesulfame is calculated, and it is found that when only adsorption, the adsorption rate is 27.99%. Adsorption-catalysis When they work together, the degradation rate is 41.67%.

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Abstract

The invention relates to a method for removing and treating the antibiotic acesulfame by activated carbon materials. First, activated carbon and hydrogen peroxide solution are added to the acesulfame solution, wherein the ratio of acesulfame, activated carbon and hydrogen peroxide is 0.3875 μmol: (6~7.5) mg: (8~ 12) μmol, and then treated at room temperature for 20-100 minutes to complete the removal of the antibiotic acesulfame. The present invention can produce synergistic catalytic effect with hydrogen peroxide by adopting activated carbon material, remove the antibiotic acesulfame, and avoid the secondary pollution and high cost of the chemical method during the removal process, and it is easy to operate. The activated carbon material is added into the acesulfame solution, which greatly simplifies the industrial processing steps; at the same time, the activated carbon material itself is convenient to recover and is suitable for industrial applications, especially for the industrial removal of the antibiotic acesulfame.

Description

【Technical field】 [0001] The invention belongs to the technical field of antibiotic waste water treatment, and in particular relates to a method for removing and treating antibiotic acesulfame by activated carbon materials. 【Background technique】 [0002] Antibiotics refer to organic substances produced by organisms (plants, animals or microorganisms) in the course of life or obtained from the outside, which can selectively affect or inhibit other biological activities at low concentrations. Antibiotics occupy an important position in the field of medicine because of their unique efficacy. It ranks third in the amount of human medical drugs used, accounting for more than 6% of the total prescription drugs, and more than 70% of the amount of veterinary drugs. Among them, my country is a big country in the production and use of antibiotics. Antibiotics have the characteristics of poor volatility, low vapor pressure and low hydrophobicity, so their transfer in the environment ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/28C02F1/72B01J20/20B01J20/30C02F101/38
Inventor 蒋育澄董晓波胡满成李淑妮翟全国
Owner SHAANXI NORMAL UNIV
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