阅读说明：本技术 一种用于uv-led处理含抗生素废水的光化学反应装置 (Photochemical reaction device for treating antibiotic-containing wastewater by using UV-LED ) 是由 孙佩哲 白银晓 郭娜 于 2021-08-31 设计创作，主要内容包括：本发明属于光催化降解有机微污染物领域,一种用于UV-LED处理含抗生素废水的光化学反应装置。主要包括：波长为275nm的LED灯珠,石英反应装置,冷却装置。本发明采用装置降解的抗生素废水降解效率更快,光源利用效率更高,能耗更低。采用此方法,可以有效的去除废水中的抗生素,杀灭病原微生物,达到无害化的处理目标。(The invention belongs to the field of photocatalytic degradation of organic micropollutants, and relates to a photochemical reaction device for treating antibiotic-containing wastewater by using a UV-LED. The method mainly comprises the following steps: the LED lamp bead with the wavelength of 275nm, a quartz reaction device and a cooling device. The device for degrading the antibiotic wastewater has the advantages of higher degradation efficiency of the antibiotic wastewater, higher light source utilization efficiency and lower energy consumption. By adopting the method, the antibiotics in the wastewater can be effectively removed, pathogenic microorganisms can be killed, and the harmless treatment target is achieved.)

1. A photochemical reaction device for treating antibiotic-containing wastewater by using a UV-LED mainly comprises the following steps:

1) a plurality of UV-LED lamp beads are connected in series to improve the light reaction efficiency;

2) introducing cooling circulating water;

3) turning on the UV-LED light source;

4) introducing the wastewater containing the antibiotics into a photochemical reaction device, and staying for about 2 hours;

5) most of the antibiotics in the antibiotic wastewater after the photochemical treatment are removed, and the treated wastewater is treated in the next step.

2. The photochemical reaction device for the UV-LED treatment of antibiotic-containing wastewater as claimed in claim 1 is mainly characterized in that:

1) a plurality of LED lamp beads are fixed on a cylindrical reactor in series to form a cylindrical lamp tube, so that the problem of large occupied area of the traditional reactor is solved;

2) a plurality of quartz reactors are used for surrounding the light source, so that the illumination area is increased, and the wastewater treatment efficiency is improved;

3) the UV-LED system does not need to add an additional oxidant, so that the operation cost is saved, and the treatment efficiency is improved;

4) the use of the UV-LED lamp tube not only can effectively remove the antibiotic wastewater, but also can effectively remove harmful pathogenic microorganisms in the wastewater, thereby realizing harmless treatment.

Technical Field

The invention belongs to the field of photocatalytic degradation of organic micropollutants, and relates to a photochemical reaction device for treating antibiotic-containing wastewater by using a UV-LED.

Background

Antibiotics refers to a class of secondary metabolites with anti-pathogen or other activities generated by microorganisms or higher animals and plants in the life process, and chemical substances capable of interfering with other life cell development functions. In general, the concentration of antibiotics tends to be higher in developing countries of asia than in european and north american countries. And the antibiotic pollutants in the water are difficult to effectively remove by the current sewage treatment facilities. The harm caused by antibiotics is not negligible, so that it is necessary to find an efficient method for removing the residual antibiotics in the environment.

A great deal of research shows that the photochemical degradation of antibiotics in water has a good effect. However, the traditional UV device also has the defects of weak penetrating power, high energy consumption and high requirements on experimental equipment. Light Emitting Diodes (LEDs) are considered a promising alternative because they are safer, long-lived, energy efficient, small, versatile, and allow for widespread deployment.

In view of the above, a treatment process with high efficiency and low consumption is needed to improve the efficiency of removing antibiotic pollutants in wastewater.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a photochemical reaction device for treating antibiotic-containing wastewater by using a UV-LED.

The first technical scheme provided by the invention for solving the technical problems in the prior art is as follows: the photochemical reaction device for treating the antibiotic-containing wastewater by the UV-LED comprises the following steps:

1) a plurality of UV-LED lamp beads are connected in series to improve the light reaction efficiency;

1) introducing cooling circulating water;

2) turning on the UV-LED light source;

3) introducing the wastewater containing the antibiotics into a photochemical reaction device, and staying for about 2 hours;

4) most of the antibiotics in the antibiotic wastewater after the photochemical treatment are removed, and the treated wastewater is treated in the next step.

The power of a single lamp bead in the step 1) is 3W, and the emission wavelength is 275 nm.

Has the advantages that:

the invention has the beneficial effects that:

1) a plurality of LED lamp beads are fixed on a cylindrical reactor in series to form a cylindrical lamp tube, so that the problem of large occupied area of the traditional reactor is solved;

2) a plurality of quartz reactors are used for surrounding the light source, so that the illumination area is increased, and the wastewater treatment efficiency is improved;

3) the UV-LED system does not need to add an additional oxidant, so that the operation cost is saved, and the treatment efficiency is improved;

4) the use of the UV-LED lamp tube not only can effectively remove the antibiotic wastewater, but also can effectively remove harmful pathogenic microorganisms in the wastewater, thereby realizing harmless treatment.

Drawings

FIG. 1 is a photochemical reaction device for UV-LED treatment of antibiotic-containing wastewater, which is preferably implemented by the present invention.

FIG. 2 is a graph showing the kinetic effect of the present invention for photolyzing ciprofloxacin-containing wastewater.

Detailed Description

The invention is further illustrated by the following specific examples and the accompanying drawings. The examples are intended to better enable those skilled in the art to better understand the present invention and are not intended to limit the present invention in any way.

Example 1

1) Preparing 1mM stock solution for later use by using common quinolone drugs ciprofloxacin as target antibiotics and ultrapure water;

2) preparing 50ml of 10. mu.M ciprofloxacin solution using a beaker, and controlling the pH of the reaction solution to 7.0 using 5mM phosphate buffer solution;

3) inserting the UV-LED lamp tube into a quartz reactor, and turning on a cooling device and then turning on a power supply to work;

4) placing the reaction solution into a quartz tube reactor, staying for 2 hours, degrading ciprofloxacin under the illumination of UV-LED, and reacting at room temperature;

5) sampling was performed at the outlet of the reactor, and the removal rate of ciprofloxacin in the reaction liquid was determined by high performance liquid chromatography to be 84.22%.

It should be understood that the embodiments and examples discussed herein are illustrative only and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application and scope of the appended claims.