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A treatment process for the degradation of antibiotic wastewater by an electrochemical membrane filtration coupling system

A technology of antibiotic wastewater and coupling system, which is applied in the treatment process field of electrochemical membrane filtration coupling system to degrade antibiotic wastewater, can solve the problems of membrane pollution, complex method, and long time consumption, and achieve high treatment efficiency, simple preparation method, and simple process Effect

Active Publication Date: 2021-03-16
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can effectively remove pollutants in antibiotic wastewater, but the method is relatively complicated and time-consuming; in the membrane separation technology, a combination of microfiltration and nanofiltration is used to intercept, although the nanofiltration membrane used is to a certain extent Improved fouling resistance, but still has the problem of membrane fouling

Method used

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  • A treatment process for the degradation of antibiotic wastewater by an electrochemical membrane filtration coupling system

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Effect test

Embodiment 1

[0031]A treatment process for degrading antibiotic wastewater by an electrochemical membrane filtration coupling system. The treatment process uses an electrochemical membrane filtration coupling system to treat antibiotic wastewater. The electrochemical membrane filtration coupling system includes sequentially connected nitrogen cylinders 1, Liquid control equipment 2 and reactor 3 (reactor 3 is a closed cuboid made of polytetrafluoroethylene material, 8cm long, 8cm wide, and 12cm high. Reactor 3 is assembled from upper, middle and lower parts, two by two By threaded connection); reactor 3 comprises reaction chamber 4 (reaction chamber 4 is cuboid, and cross section is the square of 3 * 3cm, and volume is 0.05L), and the upper end of reactor 3 is provided with water inlet 5 and reaction chamber 4 and respectively. The hydraulic control equipment 2 is connected; the bottom of the water inlet 5 and the side walls around the reaction chamber 4 are horizontally provided with a gro...

Embodiment 2

[0041] A treatment process for degrading antibiotic wastewater by an electrochemical membrane filtration coupling system, as described in Example 1, the difference is: in the treatment process steps, the voltage of the control DC power supply is 3V. Samples were taken at 10 water outlets to determine the antibiotic content.

[0042] After determination, the antibiotic removal rate of the present embodiment method is 82%; after running 8 cycles repeatedly under the same conditions (after processing the antibiotic waste water for half an hour, clean the conductive film with deionized water, and then carry out the treatment of the next batch of waste water, so cycle 8 times), the antibiotic removal rate has only decreased by 0.6%, indicating that the method of the present invention has effectively realized the electrochemical degradation of pollutant antibiotics, and the electrochemical degradation performance is stable, stable operation is possible, and the effluent water quality...

Embodiment 3

[0044] A treatment process for degrading antibiotic wastewater by an electrochemical membrane filtration coupling system, as described in Example 1, the difference is: in the treatment process steps, the concentration of antibiotic wastewater is 10 mg / L, and pH=6.5. Samples were taken at 10 water outlets to determine the antibiotic content.

[0045] After determination, the antibiotic removal rate of the present embodiment method is 70%; after running 8 cycles repeatedly under the same conditions (after processing the antibiotic waste water for half an hour, clean the conductive film with deionized water, and then carry out the treatment of the next batch of waste water, so cycle 8 times), the antibiotic removal rate has only decreased by 0.9%, indicating that the method of the present invention has effectively realized the electrochemical degradation of pollutant antibiotics, and the electrochemical degradation performance is stable, stable operation is possible, and the efflu...

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Abstract

The invention provides a treatment technology for degrading antibiotic wastewater by an electrochemistry and membrane filtration coupling system. The treatment technology utilizes the electrochemistryand membrane filtration coupling system to treat the antibiotic wastewater, and the coupling system comprises a nitrogen cylinder, a hydraulic control device and a reactor which are communicated in sequence; the reactor comprises a reaction chamber, a water inlet is arranged at the upper end of the reactor and is respectively communicated with the reaction chamber and hydraulic control device, anegative electrode material titanium net is horizontally fixed below the water inlet and in the reaction chamber, a positive electrode material conductive film is horizontally fixed at the bottom surface of the reaction chamber, and the bottom surface of the reaction chamber is provided with a water outlet; and the positive electrode material and the negative electrode material are connected withan external power supply through titanium wires. The antibiotic wastewater passes through the negative electrode material titanium net and the positive electrode material conductive film to undergo filtration and electrocatalytic degradation in order to obtain purified wastewater. The technology which combines electrochemistry and the membrane filtration technique makes filtration and degradationof antibiotics carried out at the same time, so membrane pollution is solved, and efficient treatment of antibiotic wastewater is realized.

Description

technical field [0001] The invention relates to a treatment process for degrading antibiotic wastewater by an electrochemical membrane filtration coupling system, which belongs to the technical field of wastewater treatment and resource utilization. Background technique [0002] Studies have shown that my country's water pollution problem is becoming more and more serious. Domestic sewage, medical wastewater and agricultural runoff contain various antibiotic substances. Long-term discharge of antibiotics into the environment will cause the enhancement of drug resistance of sensitive bacteria, which is harmful to the ecological environment and human health. pose a potential threat. [0003] Membrane filtration technology has the functions of separation, purification, concentration and refining, and has the advantages of high efficiency, energy saving, environmental protection, simple process and easy control, so it is widely used in the field of water treatment. For example, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/469B01D71/68B01D71/02B01D69/02B01D67/00C02F103/34
CPCB01D67/0079B01D69/02B01D71/027B01D71/68C02F1/469C02F2103/34
Inventor 孙雪菲刘琳娜王曙光
Owner SHANDONG UNIV
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