Novel Fenton reaction device

A reaction device and a new type of technology, applied in the field of high-efficiency wastewater treatment devices, can solve the problems of reagent waste, reaction efficiency, large one-time dosage, complex reaction system, etc., and achieve the effects of easy popularization and application, simple operation and high efficiency

Active Publication Date: 2015-11-25
GUANGDONG UNIV OF PETROCHEMICAL TECH
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Problems solved by technology

[0005] At present, in the research and application of Fenton oxidation technology, either a large amount of hydrogen peroxide (H2O2) and ferrous salt (Fe2+) is added at one time; or a single reaction is adopted without fully considering the characteristics of Fenton oxidation mechanism and oxidation process If the device type or t

Method used

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  • Novel Fenton reaction device

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Example Embodiment

[0014] Reference figure 1 , The present invention provides a new type of Fenton-reactor, which is composed of a fully mixed flow reactor 1 and a plug flow reactor 10. Both the fully mixed flow reactor 1 and the plug flow reactor 10 are cylindrical structures with an upper part between them. The connecting pipe 8 of the fully mixed flow reactor 1 is connected, and the center of the fully mixed flow reactor 1 is built-in from the top to the bottom with a diversion mixing tube 3, and the diversion mixing tube 3 is fixed on the inner wall of the fully mixed flow reactor 1 by a fixing member. 3 has an inlet section 4 at the lower end and an outlet section 2 at the upper end. The water inlet spray port 6 extends from the bottom of the fully mixed flow reactor 1 upwards into the lower inlet section 4 of the diversion mixing pipe. There is drainage at the bottom of the flat plug flow reactor 10. Port 12, in the flat plug flow reactor 10, a baffle 11 is arranged from top to bottom betwe...

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Abstract

The invention provides a novel Fenton reaction device. The device comprises a continuous stirred tank reactor (1) and a plug flow reactor (10), which are communicated by a communicating pipe (8) at the upper part, wherein a flow guide mixing pipe (3) is arranged in the center of the continuous stirred tank reactor from top to bottom; an outfall (12) is formed in the lower part of the plug flow reactor; baffle plates (11) are arranged between the communicating pipe communication position and the outfall in the plug flow reactor from top to bottom; a first agent adding hole (5) is formed below a lower entrance (4) of the continuous stirred tank reactor; a second agent adding hole (7) is formed in the middle position of the communicating pipe; mixing baffles (9) are arranged at the two sides of the second agent adding hole in the communicating pipe. The device can further meet the requirements of the Fenton reaction characteristics of refractory organics by adding Fenton reaction reagents at two stages. The device has the characteristics of high efficiency, simplicity, small floor area, easiness in processing, simplicity and convenience in operation, and the like, and is easy to popularize and apply.

Description

technical field [0001] The invention relates to a sewage treatment device, in particular to a high-efficiency wastewater treatment device based on Fenton reaction. Background technique [0002] Refractory organic wastewater has complex components, high toxicity, poor biodegradability, and great impact on the ecological environment. It is difficult to purify or meet the technical and economic requirements by conventional methods. [0003] At present, the research on the treatment of refractory organic matter is mainly divided into three categories: one is the bioaugmentation technology of adding effective degradable microorganisms or engineering bacteria, enzymes, nutrients and matrix analogues; the second is the bioaugmentation technology including adsorption, extraction and physical and chemical methods of various membrane technologies; the third category is based on O 3 、H 2 o 2 , KMnO 4 Chemical oxidation method for oxidant. Bioaugmentation technology is mainly still...

Claims

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Application Information

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IPC IPC(8): C02F1/72
Inventor 周如金邱松山聂丽君钟华文
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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