Advanced oxidation reactor and toxic refractory wastewater treatment device and treatment method

A wastewater treatment and reactor technology, applied in chemical instruments and methods, oxidized water/sewage treatment, special compound water treatment, etc., can solve problems such as limited mass transfer efficiency, high concentration pollutants in refractory wastewater, and high operating costs

A wastewater treatment and reactor technology, applied in chemical instruments and methods, oxidized water/sewage treatment, special compound water treatment, etc., can solve problems such as limited mass transfer efficiency, high concentration pollutants in refractory wastewater, and high operating costs

CN106082422BActive Publication Date: 2019-02-15成都柏溪环境科技有限公司
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  • Advanced oxidation reactor and toxic refractory wastewater treatment device and treatment method
  • Advanced oxidation reactor and toxic refractory wastewater treatment device and treatment method
  • Advanced oxidation reactor and toxic refractory wastewater treatment device and treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1: the advanced oxidation reactor of the first structural form

[0064] In this example, the structural schematic diagram of the advanced oxidation reactor is as follows figure 1 As shown, the reactor includes a reaction tank 1, a return pump 4, a return pipe 5, an aeration element installed in the reaction tank, a first dosing pipe 3, and a deflector 6, and the aeration element is formed by an air guide pipe 2 -1 and aeration head 2-2,

[0065] Described reaction tank 1 is made up of truncated conical body 1-1 and cylindrical body 1-2 that small end is closed, big end is open, and the internal diameter of large end of truncated conical body is equal to the internal diameter of cylindrical body, and truncated conical body 1 The large end of -1 is connected with the lower end of the cylindrical body 1-1, the ratio of the inner diameter of the large end to the small end of the frusto-conical cylindrical body 1-1 of the reaction tank is 3:1, and the height of t...

Embodiment 2

[0068] Embodiment 2: the advanced oxidation reactor of the first structural form

[0069] In this example, the structural schematic diagram of the advanced oxidation reactor is as follows figure 1 As shown, the reactor includes a reaction tank 1, a return pump 4, a return pipe 5, an aeration element installed in the reaction tank, a first dosing pipe 3, and a deflector 6, and the aeration element is formed by an air guide pipe 2 -1 and aeration head 2-2,

[0070] Described reaction tank 1 is made up of truncated conical body 1-1 and cylindrical body 1-2 that small end is closed, big end is open, and the internal diameter of large end of truncated conical body is equal to the internal diameter of cylindrical body, and truncated conical body 1 The large end of -1 is connected with the lower end of the cylindrical body 1-1, the ratio of the inner diameter of the large end to the small end of the frusto-conical cylindrical body 1-1 of the reaction tank is 4:1, and the height of t...

Embodiment 3

[0073] Embodiment 3: the advanced oxidation reactor of the second structural form

[0074] In this example, the structural schematic diagram of the advanced oxidation reactor is as follows figure 2 As shown, the reactor includes a reaction tank 1, a return pump 4, a return pipe 5, an aeration element installed in the reaction tank and a first dosing pipe 3, a deflector 6, an outlet weir 7 and an annular baffle 8, The aeration element is composed of an air duct 2-1 and an aeration head 2-2,

[0075] Described reaction tank 1 is made up of truncated conical body 1-1 and cylindrical body 1-2 that small end is closed, big end is open, and the internal diameter of large end of truncated conical body is equal to the internal diameter of cylindrical body, and truncated conical body 1 The large end of -1 is connected with the lower end of the cylindrical body 1-1, the ratio of the inner diameter of the large end to the small end of the frusto-conical cylindrical body 1-1 of the reac...

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Abstract

The invention belongs to the field of toxic and refractory wastewater treatment and provides advanced oxidation reactors with two structural forms and toxic and refractory wastewater treatment devices with two structural forms. Each toxic and refractory wastewater treatment device integrates three stages of reactors through coupling. The invention further provides toxic and refractory wastewater treatment methods. According to the methods, persulfate and a micro-grade microelectrolysis material are added to first-stage reactors of the wastewater treatment devices, hydrogen peroxide and persulfate are added to second-stage reactors, the micro-grade microelectrolysis material is added to second-stage reactors, and then a Fenton-like reaction, a Fenton reaction and an activated persulfate oxidization reaction are effectively coupled in the three stages of reactors; with the adoption of the methods, the wastewater treatment effect can be enhanced and improved, and the wastewater treatment cost can be reduced.

Description

technical field [0001] The invention belongs to the field of toxic and refractory wastewater treatment, and in particular relates to an advanced oxidation reactor, a device for treating toxic and refractory wastewater and a method for treating toxic and refractory wastewater. Background technique [0002] At present, advanced oxidation technologies such as Fenton-like reaction, Fenton reaction and new activated persulfate oxidation are mainly used for pretreatment or advanced treatment of toxic and refractory wastewater. The Fenton-like reaction refers to the reaction of zero-valent iron or iron-based multimetallic materials under aerobic conditions to convert O 2 reduced to H 2 o 2 , then at Fe 2+ Under the catalysis of catalysis, strong oxidizing hydroxyl radicals (OH) are generated in situ, and the reaction equations are shown in formulas (1)-(2); Fenton reaction refers to H 2 o 2 in Fe 2+ Under the catalytic action of OH, strong oxidizing OH is produced, and the re...

Claims

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Application Information

Patent Timeline
15 Feb 2019
Publication
CN106082422B
IPC
C02F1/72; C02F1/461; C02F9/06; B01J8/24
CPC
B01J8/24; C02F1/4672; C02F1/66; C02F1/72; C02F1/722; C02F9/00; C02F2209/005; C02F2209/06
Inventors
赖波; 袁月