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Wastewater treatment system and water treatment method based on photochemical reaction

A wastewater treatment system and photochemical reaction technology, which is applied in chemical instruments and methods, illuminated water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problem that the scale of the reaction device cannot be large, the efficiency of wastewater treatment is low, and the consumption of hydrogen peroxide To solve the problem of large amount, to improve the use efficiency and energy utilization rate, reduce the cost of treatment agent, and save the amount of use

Inactive Publication Date: 2011-12-07
白妮 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that this method needs to be carried out under acidic conditions (usually PH≤3), and the consumption of iron (II) ions and hydrogen peroxide is large, and the treated effluent needs a large amount of NaOH to neutralize, so that a lot of sludge is generated. And easy to cause secondary pollution
Because there are still many problems in this basic treatment process, especially for organic wastewater with high chroma and high chemical oxygen demand with extremely poor light transmittance, it is difficult for the photocatalyst dispersed in the wastewater to be irradiated by light effectively. The consumption of photocatalyst is large, the efficiency of wastewater treatment is low, and energy waste is serious; and the suspension of photocatalyst requires a special device, and the water after treatment requires a solid-liquid separation device, which has high processing costs; the scale of the reaction device cannot be large, etc. These factors are limiting its practical application

Method used

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  • Wastewater treatment system and water treatment method based on photochemical reaction
  • Wastewater treatment system and water treatment method based on photochemical reaction
  • Wastewater treatment system and water treatment method based on photochemical reaction

Examples

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Embodiment 1

[0043] see figure 1 , The organic wastewater treatment system based on photochemical reaction of the present invention includes a photochemical generator (abbreviated as generator) 1, photochemical reaction pool (abbreviated as reaction pool) 2, generator 1 and reaction pool 2 are connected in series.

[0044] Photochemical generator 1 comprises a container body 30, lower grille 12, upper grille 14, ultraviolet lamp 3 and liquid level controller 16, and container body 30 is provided with water inlet 11 and is used for inputting hydrogen peroxide and complexing agent The infusion valve 13, the lower grille 12 and the upper grille 14 are arranged in the container body 30, and a storage space for accommodating the photocatalyst 5 is separated in the container body 30, and the setting position of the water inlet 11 on the container body 30 is located in the lower compartment. Below the grid 12, the position of the infusion valve 13 on the container body 30 is located between the l...

Embodiment 2

[0059] see figure 2 , the method for wastewater treatment of the present invention, comprises the steps:

[0060] 1. Independently set up a photochemical generator and a photochemical reaction pool, add light-assisted heterogeneous Fenton reaction reagents into the generator, and input wastewater into the generator;

[0061] 2. Apply the light-assisted heterogeneous Fenton reaction to treat the wastewater in the photochemical generator, and input the wastewater treated by the light-assisted heterogeneous Fenton reaction in the photochemical generator into the photochemical reaction pool;

[0062] 3. The irradiation of ultraviolet light in the photochemical reaction tank makes the photochemical reaction continue, and the waste water treated by further photochemical reaction in the photochemical reaction tank is input into the generator; and

[0063] 4. Cycle steps 2-3 until the wastewater meets the discharge standard.

[0064] Simultaneously combine figure 1 The photochemic...

Embodiment 3

[0076] This example illustrates the beneficial results produced by the system of Example 1 and the method steps of Example 2 on the treatment of organic wastewater. To treat 10L of basic black dye wastewater with a COD of 520mg / L and a chromaticity of 400 times, when adding 20ml of hydrogen peroxide, the photocatalyst is 0.6g of X zeolite loaded with Fe(III) 4%, and the power of 2 40W UV light, after 6 hours of light, the COD removal rate of the effluent is 94%, and the chroma removal rate is 99%.

[0077] The description of Example 3 is only a preferred example of the photochemical reaction-based organic wastewater treatment method of the present invention, and is not intended to limit the present invention to be implemented in this way.

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Abstract

A kind of waste water treatment system and a kind of water treatment method based on photochemical reaction, this waste water treatment system comprises at least one photochemical generator and photochemical reaction tank, this photochemical generator provides a light-assisted heterogeneous Fenton reaction area, this photochemical reaction tank An ultraviolet radiation area is provided, the at least one photochemical generator and the reaction tank are connected in series, and a waste water circulation flow system is formed between the photochemical generator and the at least one photochemical reaction tank, and the waste water flow path of the waste water circulation flow system passes through the photochemical reaction tank. The light of the generator assists the heterogeneous Fenton reaction area, and passes through the ultraviolet light radiation area of ​​the photochemical reaction cell. The water treatment method utilizes a photochemical generator and a photochemical reaction pool to circulate the flowing wastewater, so as to achieve the purpose of efficient and rapid treatment of the wastewater.

Description

technical field [0001] The present invention relates to a wastewater treatment system and a water treatment method, in particular to a photochemical reaction-based wastewater treatment system and a water treatment method. Oxygen organic wastewater treatment and pretreatment. Background technique [0002] With the rapid development of industry and agriculture, the pollution of water environment is becoming more and more serious, and a large number of toxic and harmful organic pollutants are endangering the ecological environment and human health. For organic wastewater with increasingly complex chemical composition, traditional wastewater treatment technologies such as adsorption, filtration, neutralization, coagulation, redox and other basic physical and chemical methods are difficult to treat in depth, and indicators such as COD and TOC are very low. Difficult to meet national standards. Although biochemical methods have achieved certain results in treating wastewater, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/32C02F1/72C02F9/08
Inventor 白妮郭城
Owner 白妮
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