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Electroporation disinfecting device, method and application of nanowire modified three-dimensional electrodes

A technology of three-dimensional electrodes and disinfection devices, applied in chemical instruments and methods, magnetic/electric field water/sewage treatment, special treatment targets, etc., can solve problems such as long hydraulic retention time, large floor space, limited resurrection, etc., to achieve Guarantee the safety of water, ensure the safety of effluent, and the effect of safe disinfection

Inactive Publication Date: 2016-05-04
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of chlorine disinfection, the added chlorine molecules will react with organic matter in the water to produce carcinogenic disinfection by-products, which will affect human health.
At the same time, chlorine disinfection technology still has the disadvantages of long hydraulic retention time and large floor space.
Ultraviolet disinfection technology is limited by the characteristics of the resurrection of microorganisms after ultraviolet disinfection, so it is difficult to further promote and apply

Method used

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  • Electroporation disinfecting device, method and application of nanowire modified three-dimensional electrodes
  • Electroporation disinfecting device, method and application of nanowire modified three-dimensional electrodes

Examples

Experimental program
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Embodiment 1

[0023] use figure 1 The device shown, undergoes nanowire-modified 3D electrode electroporation for disinfection. A cylindrical porous copper foam electrode with a diameter of 10mm and a thickness of 5mm was heated at 350-450°C for 1-3h to prepare a three-dimensional electrode decorated with copper oxide nanowires; two three-dimensional electrodes decorated with copper oxide nanowires were respectively fixed on two In an insulating groove, ensure that the distance between two copper oxide nanowire-modified three-dimensional electrodes is greater than 5mm to prevent contact short circuit, and place a layer of plastic mesh to ensure safety.

[0024] Escherichia coli (ATCC15597), Enterococcus faecalis (ATCC19433) and Bacillus subtilis (ATCC6633) were used as model bacteria, and the model bacteria in the logarithmic phase were enriched and cultured for 12 hours, and normal saline (9g / L sodium chloride solution ) diluted to a bacterial concentration of approximately 10 7 cells / mL ...

Embodiment 2

[0025] use figure 1 The device shown, undergoes nanowire-modified 3D electrode electroporation for disinfection. A cylindrical porous copper foam electrode with a diameter of 10mm and a thickness of 5mm was heated at 350-450°C for 1-3h to prepare a three-dimensional electrode decorated with copper oxide nanowires; two three-dimensional electrodes decorated with copper oxide nanowires were respectively fixed on two In an insulating groove, ensure that the distance between two copper oxide nanowire-modified three-dimensional electrodes is greater than 5mm to prevent contact short circuit, and place a layer of plastic mesh to ensure safety. The two three-dimensional electrodes decorated with copper oxide nanowires are respectively connected to the positive and negative electrodes of the power supply through wires, and the power switch is turned on so that the treated water passes through the three-dimensional electrodes decorated with copper oxide nanowires to achieve efficient d...

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Abstract

The invention discloses an electroporation disinfecting device, method and application of nanowire modified three-dimensional electrodes, and belongs to the technical field of water treatment and disinfection. The device consists of two nanowire modified three-dimensional electrodes, two insulation slots, two wires, a plastic net and a power supply, wherein the two nanowire modified three-dimensional electrodes are respectively fixed to the two insulation slots, the space between the two nanowire modified three-dimensional electrodes is equal to or larger than 5mm, and the plastic net is placed between the two nanowire modified three-dimensional electrodes; the two nanowire modified three-dimensional electrodes are respectively connected with the positive electrode and the negative electrode of the power supply through the two wires. After the power supply is switched on, water to be treated is disinfected through the nanowire modified three-dimensional electrodes. According to the disinfecting method, low-voltage operation is utilized, the electrolytic reaction of a solution is avoided, chlorine is not generated, and efficient safe disinfection is realized; during the disinfection, the cell membrane structure of microorganisms is destroyed, the revival phenomenon cannot occur, the water safety is further guaranteed, and the disinfecting method can be widely used in the technical field of the water treatment and the disinfection.

Description

technical field [0001] The invention belongs to the technical field of water treatment and disinfection, and in particular relates to a nanowire-modified three-dimensional electrode electroporation disinfection device and its method and application. Background technique [0002] In the field of water treatment, chlorine disinfection is a widely used disinfection technology. However, in the process of chlorine disinfection, the added chlorine molecules will react with organic matter in the water to produce carcinogenic disinfection by-products, which will affect human health. At the same time, chlorine disinfection technology still has the disadvantages of long hydraulic retention time and large floor space. Ultraviolet disinfection technology is limited by the characteristics of the resurrection of microorganisms after ultraviolet disinfection, and it is difficult to further popularize and apply. [0003] Using the strong electric field generated by the nanowire structure,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/48
CPCC02F1/48C02F2201/48C02F2303/04C02F2305/08C02F2307/06C02F2307/10C02F2307/14
Inventor 胡洪营霍正洋
Owner TSINGHUA UNIV
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