Method for removing sulfamethoxazole in water body by using modified bamboo charcoal

A technology of sulfamethoxazole and bamboo charcoal, applied in chemical instruments and methods, water pollutants, water/sewage treatment and other directions, can solve problems such as the inability to remove antibiotic wastewater, achieve low price, increase pore volume and pore size, Prepare simple effects

Inactive Publication Date: 2015-01-07
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The purpose of the above patent is to improve the conductivity of bamboo charcoal and provide a conductive carbon material for various green energy materials, so it cannot play a good role in removing antibiotic wastewater

Method used

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  • Method for removing sulfamethoxazole in water body by using modified bamboo charcoal
  • Method for removing sulfamethoxazole in water body by using modified bamboo charcoal
  • Method for removing sulfamethoxazole in water body by using modified bamboo charcoal

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Weigh 0.01, 0.05, 0.100, 0.250, 0.500g of modified bamboo charcoal in different amounts into a 50mL Erlenmeyer flask with a stopper, add 25mL of a solution of sulfamethoxazole with a concentration of 50mg / L, and store at 25°C, 150r / min in the dark Continuous shaking for 24h, sampling respectively, after the supernatant was passed through a 0.22 μm filter membrane, the content of sulfamethoxazole in the sample was determined by liquid chromatography, and the removal rate was calculated, as figure 1 shown. When the amount of adsorbent is 0.01g~0.5g, the removal rate of sulfamethoxazole increases with the increase of the amount of adsorbent; when the amount of adsorbent is 0.25g, the removal rate reaches 83% in 24 hours. Therefore, 0.25g of modified bamboo charcoal was added to the shake flask with stopper as the best static adsorbent dosage for removing sulfamethoxazole as adsorbent material.

Embodiment 2

[0031] Accurately weigh 0.25g of modified bamboo charcoal into a 50mL Erlenmeyer flask with a stopper, add 25mL of sulfamethoxazole solution with a concentration of 50mg / L, shake continuously at 25°C and 150r / min in the dark for 24h, and take samples at different times , after the supernatant was passed through a 0.22 μm filter membrane, measure the content of sulfamethoxazole in the sample by liquid chromatography, and calculate the removal rate to obtain the removal relationship of modified bamboo charcoal to antibiotics over time, as figure 2 shown. When the removal rate of sulfamethoxazole increases with time, when the adsorption time is 24h, the removal rate reaches 83.8%. Therefore, 0.25g of modified bamboo charcoal was added into the shake flask with stopper as the adsorption material, and 24h was the best static adsorption time condition for removing sulfamethoxazole.

Embodiment 3

[0033] Accurately weigh 0.25g of modified bamboo charcoal into a 50mL Erlenmeyer flask with a stopper, add 25mL of sulfamethoxazole solutions with concentrations of 5, 10, 20, 30, 50, and 100mg / L, and place at 25°C, 150r / min Avoid light and continuously shake for 24 hours, take samples respectively, and after the supernatant passes through a 0.22 μm filter membrane, measure the content of sulfamethoxazole in the sample by liquid chromatography, and calculate the removal rate to obtain the removal range of modified bamboo charcoal for different antibiotic concentrations, like figure 2 shown. When the input amount of adsorbent is 0.25g and the concentration of sulfamethoxazole is less than or equal to 30mg / L, the removal rate reaches 100%.

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Abstract

The invention belongs to the technical field of water treatment, and relates to a method for removing sulfamethoxazole in a water body by using modified bamboo charcoal, which comprises the following steps: sequentially carrying out pulverization, ultrasonic treatment, impregnation-process iron oxide loading and freeze-drying on bamboo charcoal to obtain modified bamboo charcoal, and adsorbing and removing sulfamethoxazole in the water body by using the modified bamboo charcoal as a filler or adsorbent. Compared with the prior art, the ultrasonic / impregnation-process iron oxide loading greatly enhances the antibiotic removal capacity of the bamboo charcoal. The adsorbent is high in adsorbability and easy to prepare; and the method is convenient to operate and low in price. The method is applicable to a sulfamethoxazole wastewater treatment technique, and has favorable economic and environmental benefits.

Description

technical field [0001] The invention relates to a method for removing sulfamethoxazole in water by using modified bamboo charcoal, and belongs to the technical field of water treatment. Background technique [0002] Sulfamethoxazole antibiotics are broad-spectrum antibiotics that can inhibit most bacteria and are widely used in livestock and poultry farming. Most of the sulfamethoxazole cannot be completely absorbed by organisms, but enters the water environment and soil environment in the form of parent compounds or metabolites. These antibiotics remaining in the water will pose a threat to organisms, induce microbial resistance and resistance gene. Therefore, it is very necessary to treat the aquaculture water and source water containing sulfamethoxazole, which has become one of the research hotspots. [0003] The method of using the adsorption capacity of filler to adsorb and remove pollutants in water body is one of the common methods in water treatment process, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/58B01J20/20C02F101/38
CPCB01J20/0229B01J20/20C02F1/283C02F2101/40
Inventor 刘佳黄翔峰陆丽君陈国鑫王珅熊永娇
Owner TONGJI UNIV
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