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Filtering type electrochemical reactor and method for removing antibiotics from water mass

An electrochemical and filtering technology, applied in chemical instruments and methods, inorganic chemistry, water pollutants, etc., can solve problems such as limiting the application range of electrochemical oxidation, failing to meet practical application requirements, and failing to obtain removal effects. Good use value and application prospect, good strength, good removal effect

Inactive Publication Date: 2020-01-24
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the inability to generate a sufficient number of free radicals in the existing electrochemical oxidation method, it is difficult to quickly and effectively remove pollutants completely, and the ideal removal effect cannot be obtained, which cannot meet the needs of practical applications.
In addition, in the existing electrochemical oxidation method to treat antibiotic wastewater, there are still problems such as high treatment cost and low treatment efficiency, which also limits the application range of electrochemical oxidation method

Method used

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  • Filtering type electrochemical reactor and method for removing antibiotics from water mass
  • Filtering type electrochemical reactor and method for removing antibiotics from water mass
  • Filtering type electrochemical reactor and method for removing antibiotics from water mass

Examples

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Effect test

Embodiment 1

[0036] A filtered electrochemical reactor, such as figure 1 As shown, it includes a pool body 1 and a filter device 2 located in the pool body 1, the filter device 2 includes a cathode 21 located at the water inlet end and an anode 24 located at the water outlet end, wherein a sealing septum 21 is provided between the cathode 21 and the anode 24, It is used to separate the cathode 21 from the anode 24 while also sealing the filter device 2 to avoid water leakage; a sealing spacer 21 is provided between the cathode 22 and the cell body 1 for separating the cathode 22 from the cell body 1 Simultaneously, the filter device 2 is also sealed to avoid water leakage.

[0037]In the present embodiment, the anode 24 is a carbon nanotube film, and the carbon nanotube film is used as the anode material to be arranged at the water outlet of the filter device 2, which can not only absorb more pollutants (such as antibiotics), but also in the process of electrochemical oxidation reaction. ...

Embodiment 2

[0044] A method for removing antibiotics in water, using the filtering electrochemical reactor in embodiment 1 to process antibiotics, comprising the following steps:

[0045] (1) Mix sulfamethoxazole waste water with an initial concentration of 5 mg / L and a pH of 7 with sodium chloride to obtain a mixed solution, wherein the concentration of sodium chloride in the mixed solution is 20 mmol / L.

[0046] (2) Connect the filter-type electrochemical reactor to the power supply, set the external DC voltage to 0; according to the feed rate of 1.5mL / min, continuously pass the mixed solution in step (1) into the filter-type electrochemical reactor The electrochemical oxidation degradation is carried out at a temperature of 25°C, and the feeding time is 1h. Specifically, the mixed solution in step (1) is continuously fed into the reactor through the water inlet of the filter-type electrochemical reactor, and sequentially passed through The cathode and the anode, the adsorption reaction...

Embodiment 3

[0051] A method for removing antibiotics in water, using the filtering electrochemical reactor in embodiment 1 to process antibiotics, comprising the following steps:

[0052] (1) Mix sulfamethoxazole wastewater with an initial concentration of 50 mg / L and a pH of 7 with sodium chloride to obtain a mixed solution, wherein the concentration of sodium chloride in the mixed solution is 20 mmol / L.

[0053] (2) Connect the filter-type electrochemical reactor to the power supply, and set the external DC voltage to 3V; according to the feed rate of 1.5mL / min, continuously pass the mixed solution in step (1) into the filter-type electrochemical reactor The electrochemical oxidation degradation is carried out at a temperature of 25 ° C, and the feeding time is 1 h. Specifically, the mixed solution in step (1) is continuously fed into the reactor through the water inlet of the filter type electrochemical reactor, and sequentially passed through the cathode And the anode, the adsorption ...

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Abstract

The invention discloses a filtering type electrochemical reactor and a method for removing antibiotics from water mass. The filtering type electrochemical reactor comprises a tank body and a filteringdevice, wherein in the filtering device, a carbon nanotube membrane serves as an anode. The method for removing the antibiotics from the water mass comprises the step of performing treatment by usingthe filtering type electrochemical reactor. The filtering type electrochemical reactor disclosed by the invention has the advantages that the use is simple, the operation is convenient, the efficiency of mass transfer is high, the effect of removing pollutants is good, and the like, so that the filtering type electrochemical reactor can be extensively applied to removal of the pollutants from thewater mass and has very good use values and application prospects. According to the method for removing the antibiotics from the water mass, disclosed by the invention, the antibiotics can be removedthrough enabling the antibiotic water mass to pass through the reactor in the form of filtering, so that the method has the advantages of simplicity in operation, low cost, wide applicable range, high treatment efficiency, high removal rate, environment-friendliness and the like and thus can be extensively applied to the removal of the antibiotics from the water mass; and the method has a relatively good removal effect on the antibiotics of different types, thereby being an environment-friendly electrochemical method.

Description

technical field [0001] The invention belongs to the technical field of antibiotic treatment in water, and relates to a filter type electrochemical reactor and a method for removing antibiotics in water. Background technique [0002] With the development of cities and the increase of human activities, industrial by-products or pollutants, such as chemicals, dyes, drugs, pesticides and other organic pollutants, enter the water body, which makes the problem of water pollution increasingly serious and has attracted widespread attention. Antibiotics are the chemicals with the largest amount of use and the closest relationship with organisms. They can not only control diseases, but also prevent animal and plant diseases. They have the characteristics of wide application range, large amount of use, and high frequency. However, most antibiotic drugs can hardly be completely metabolized by organisms, and the antibiotic metabolites excreted from the body are still active after testing...

Claims

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Application Information

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IPC IPC(8): C02F1/461C01B32/174C02F101/30
CPCC02F1/46109C02F1/4672C02F2001/46133C02F2001/46152C02F2201/46115C02F2201/46135C02F2201/4618C01B32/174
Inventor 谭婷院曾光明龚继来张鹏宋彪
Owner HUNAN UNIV
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