Electromagnetic enhanced catalytic ozonation device for advanced treatment of organic wastewater and organic wastewater advanced treatment method

A technology for ozone catalytic oxidation and organic wastewater, which is applied in water/sewage treatment, chemical instruments and methods, and water treatment of special compounds, etc. It can solve the problems of inability to improve the catalytic oxidation reaction effect, small proportion of hydroxyl radicals, and low interface mass transfer efficiency To achieve the effect of increasing the utilization rate of ozone, reducing the energy consumption of the reaction, and improving the utilization rate of ozone

Pending Publication Date: 2020-10-02
桂润环境科技股份有限公司
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  • Application Information

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Problems solved by technology

[0005] In fact, because solid catalysts are generally used for ozone catalytic oxidation treatment of wastewater, that is, heterogeneous catalytic oxidation reactions occur, so the interface mass transfer efficiency is low, the proportion of hydroxyl radicals generated by ozone catalysis is small, and the oxidation efficiency is poor, which directly limits the amount of organic matter in water. Decomposition and removal of pollutants
On the other hand, the hydroxyl radical exists in the liquid phase for a very short time, no more than 10 -9 Seconds, even if there are enough hydroxyl radicals generated, if the pollutants cannot be quickly contacted and oxidized, no amount of hydroxyl radicals can improve the catalytic oxidation reaction effect, so the contact efficiency of hydroxyl radicals also affects the oxidation and decomposition of pollutants The key factor
[0006] At present, for the problems existing in the above-mentioned ozone catalytic oxidation technology, the existing technology is still difficult to solve

Method used

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  • Electromagnetic enhanced catalytic ozonation device for advanced treatment of organic wastewater and organic wastewater advanced treatment method
  • Electromagnetic enhanced catalytic ozonation device for advanced treatment of organic wastewater and organic wastewater advanced treatment method
  • Electromagnetic enhanced catalytic ozonation device for advanced treatment of organic wastewater and organic wastewater advanced treatment method

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Embodiment 1

[0080] Such as figure 1 with figure 2 As shown, the electromagnetically enhanced ozone catalytic oxidation device for the advanced treatment of organic wastewater provided in this embodiment includes a jet 1, a reaction tube 2, a permanent magnet 3, a swirl paddle 4, a central shaft 5, a support frame 6, a positioning card 7 and Catalyst layer 8;

[0081] Among them, the reaction tube 2 is made of PVC material, a circular tube structure, a length of 8m, an inner diameter of 300mm, and an outer diameter of 320mm;

[0082] The permanent magnet 3 is a cylindrical arch structure with an inner diameter of 320 mm; the permanent magnet 3 is divided into two types, one is the south pole of the arch inner magnetism, which is recorded as the south permanent magnet 31, and the other is the arch inner magnetism of the north pole , denoted as north permanent magnet 32;

[0083] The swirl paddle 4 is a propeller-shaped structure with a diameter of 280 mm, a width of 65 mm, 6 blades, a b...

Embodiment 2

[0096] like image 3 As shown, according to the component specifications described in Example 1, the electromagnetic enhanced ozone catalytic oxidation device for advanced treatment of organic wastewater is placed horizontally, multiple reaction tubes 2 are used and the reaction tubes 2 are placed in parallel, and U-shaped bends are used between the reaction tubes 2 Interconnected (reaction tube 2 internal diameter 400mm, total length 20m), the electromagnetic enhanced ozone catalytic oxidation device of the organic wastewater advanced treatment that forms multitube combination, this device is used for organic wastewater advanced treatment according to the method for embodiment 1, simultaneously, with The traditional ozone reaction tower (inner diameter 800mm, height 6m) is used as a comparison to treat organic wastewater produced by a food industry, with a treatment capacity of 3m 3 / h, the specific results are shown in Table 2.

[0097] Table 2 The comparison and analysis t...

Embodiment 3

[0103] like Figure 4 As shown, the difference from Example 1 is only that the catalyst layer 8 is evenly fixed on the inner wall of the reaction tube 2.

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Abstract

The invention provides an electromagnetic enhanced catalytic ozonation device for advanced treatment of organic wastewater and an organic wastewater advanced treatment method, and belongs to the technical field of organic wastewater advanced treatment. The basic principle of the electromagnetic enhanced catalytic ozonation device for advanced treatment of organic wastewater is as follows: a catalyst layer fixed in the device is subjected to catalytic reaction with ozone and water in the organic wastewater to generate hydroxyl radicals, and then the hydroxyl radicals oxidize and decompose organic pollutants in the organic wastewater. By increasing the electromagnetic induction effect and changing the structure and the operation mode of the device, the oxidation efficiency of catalytic ozonation is improved, the ozone utilization rate is increased, and energy conservation and consumption reduction are achieved.

Description

technical field [0001] The invention relates to the technical field of advanced treatment of organic wastewater, in particular to an electromagnetically enhanced ozone catalytic oxidation device for advanced treatment of organic wastewater and a method for advanced treatment of organic wastewater. Background technique [0002] Organic wastewater is wastewater with organic matter as the main pollutant, which comes from livestock and poultry breeding, food processing, leather processing, printing and dyeing and other industries; advanced treatment means that after the wastewater has undergone primary treatment (pretreatment) and secondary treatment, in order to make The treatment section set up for the water body to meet the higher water treatment standard requirements. With the progress of society, the intensity of environmental protection construction is constantly increasing. Only the water quality of organic wastewater treated in the first and second stages will directly l...

Claims

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Application Information

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IPC IPC(8): C02F9/12C02F101/30
CPCC02F1/48C02F1/725C02F1/78C02F2101/30C02F2305/023
Inventor 覃理嘉康坤黄纯钦涂方祥杨芳显申永刚蒋衡欧奕霏
Owner 桂润环境科技股份有限公司
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