Optical/electrical-Fenton sewage treatment device based on boron-doped diamond film electrode

A sewage treatment device, the technology of boron-doped diamond, applied in the direction of light water/sewage treatment, water/sewage treatment, water/sewage treatment equipment, etc., can solve the problems of inaccessibility and low efficiency, and achieve strong controllability and operation sexual effect

Inactive Publication Date: 2016-08-24
TIANJIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

The ordinary electro-Fenton method can use the dissolved oxygen in the sewage to undergo a reduction reaction on the surface of the electrode to produce hydrogen peroxide, but the efficiency is relatively low, and the purpose cannot be achieved in practical applications.

Method used

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  • Optical/electrical-Fenton sewage treatment device based on boron-doped diamond film electrode
  • Optical/electrical-Fenton sewage treatment device based on boron-doped diamond film electrode

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Embodiment 1

[0040] A photo / electricity-Fenton sewage treatment device based on boron-doped diamond film electrodes, such as figure 1 As shown, it includes darkroom 1, refrigeration equipment 3, light source regulator 4 and DC power supply 6,

[0041] The darkroom 1 has a good airtightness, and all the wires passing through the chamber wall need to be sealed at the contact points with the chamber wall, and the middle part of the side of the darkroom 1 is provided with an openable airtight door 2;

[0042] The darkroom 1 is provided with an electrolytic cell device, a magnetic stirrer 5, a light source 11 and a heat exchanger 12. The electrolytic cell device includes an electrode holder 7, an anode 8, a cathode 9 and a container 10. The cathode 9 is a platinum sheet electrode, and the anode 8 is a through A boron-doped diamond film grown on a tantalum substrate by hot-wire CVD equipment. The size of the anode 8 and the cathode 9 are both 1cm×2cm, and the spacing is 5cm;

[0043]The contain...

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Abstract

An optical/electrical-Fenton sewage treatment device based on a boron-doped diamond film electrode comprises a dark chamber, a refrigeration device, a light source adjuster and an electrolytic cell direct current power supply, wherein the refrigeration device is used for adjusting the inside temperature of the dark chamber, and the electrolytic cell direct current power supply adjusts direct-current voltage and current on the electrode; a magnetic stirrer heats sewage in a stirring container, and a light source of a light emitting device irradiates to-be-treated sewage in the container. The optical/electrical-Fenton sewage treatment device has the advantages as follows: the device takes the boron-doped diamond film electrode as a positive electrode to realize an electrochemical reaction of a Fenton solution, the boron-doped diamond film electrode has high oxygen evolution potential and has high oxidizability for organic matters, and the synergistic effect of light degradation and ferrous ion circulation can be realized under the action of an ultraviolet source. According to the method, the boron-doped diamond film electrode is sufficiently combined with a Fenton reaction, and degradation of the sewage is effectively improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an optical / electrical-Fenton sewage treatment device based on a boron-doped diamond film electrode. technical background [0002] The production and living process of modern society is accompanied by a large amount of sewage. If the sewage is not treated reasonably and effectively, it will easily damage the ecological environment and even seriously threaten human health. The traditional treatment methods of this kind of sewage mainly include: physical sedimentation adsorption method, chemical extraction separation method, chemical oxidation method, etc. These methods have great limitations, consume a large amount of chemicals in the process of sewage treatment, and the operation process is relatively complicated , the cost is higher. [0003] Under acidic conditions, in the Fenton's reagent generated by ferrous ions and hydrogen peroxide, the hydroxyl radicals with stro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/467C02F1/32
CPCC02F1/32C02F1/46109C02F1/4674C02F2001/46133C02F2201/4612C02F2201/46155
Inventor 李明吉李潇杰李红姬李翠平朱宁杨保和
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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