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A system and method for the treatment of high-concentration organic wastewater by magnetically enhanced ultraviolet light microwave composite pressure swing catalytic oxidation

A technology of organic wastewater treatment and catalytic oxidation, which is applied in the direction of oxidized water/sewage treatment, illuminated water/sewage treatment, chemical instruments and methods, etc. It can solve the problems of high and difficult wastewater that cannot be treated with high treatment efficiency, unstable system operation, and poor treatment effect, etc. Problems, to achieve the effect of compact structure, small footprint and load reduction

Active Publication Date: 2019-04-23
刘风鸣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a magnetically strengthened ultraviolet light microwave composite pressure swing catalytic oxidation wastewater treatment system and wastewater treatment method, which can solve the problem of difficult wastewater treatment in the prior art, or the treatment efficiency is extremely low, and Microwave catalytic oxidation is easy to vaporize the water body, resulting in energy waste and poor treatment effect, unstable system operation, high operating costs and other problems

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  • A system and method for the treatment of high-concentration organic wastewater by magnetically enhanced ultraviolet light microwave composite pressure swing catalytic oxidation

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Embodiment 1

[0044] like figure 1 As shown, a magnetically enhanced ultraviolet light microwave composite pressure swing catalytic oxidation high-concentration organic wastewater treatment system includes a magnetizer, a booster pump, a dosing pump, a heat exchanger, an ultraviolet microwave composite catalytic oxidation reaction device, and a Venturi tube , a decompression oxidation tank, an air inlet, an exhaust port, a nozzle and a drain; the ultraviolet light microwave composite catalytic oxidation reaction device is composed of a microwave generator, a microwave reaction pipeline and an ultraviolet light emitter, a magnetizer, a booster pump, a heat The exchanger and the ultraviolet light microwave composite catalytic oxidation reaction device are sequentially connected, and the outlet of the ultraviolet light microwave composite catalytic oxidation reaction device is connected with the venturi tube and the decompression oxidation tank through the heat exchanger; the venturi tube and t...

Embodiment example 2

[0056] A method for treating wastewater by using the above-mentioned system, the steps are as follows: firstly, sampling and analysis are carried out, and the COD value of the water sample is determined to be 15000 mg / L by the potassium dichromate method.

[0057] Secondly, the selection of process parameters: water volume 500L / h, reaction temperature 109 ℃, pressure 0.12Mpa, stay in the microwave reactor for 3min.

[0058] In the first step, the water sample is introduced into a temperature-resistant and pressure-resistant transparent quartz glass tube through a metering pump. The catalyst is a solid catalyst (granular activated carbon composite titanium dioxide) that has been acid-washed, alkali-washed and activated at high temperature.

[0059] The second step is equipment inspection: power supply method, status of automatic control device, safety status of ultraviolet light and microwave, sealing status of related components of microwave reactor, equipment safety, leakage s...

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Abstract

The invention discloses a magnetic strengthening ultraviolet light microwave composite variable pressure catalyzed oxidation high-concentration organic wastewater treatment system and method, and solves the problems that the water treatment efficiency is low, and energy is wasted by the fact that water is vaporized when being heated under conditions of microwave and ordinary pressure in the prior art. The technical scheme is that the system comprises a magnetic enhancer, a wastewater pressure device, an oxidizing agent feeding device, an ultraviolet light generator, an ultraviolet light catalyzed oxidation reactor, a variable frequency microwave generator, a microwave catalyzed oxidation device, a heat exchanger, a Venturi tube, a pressure reducing oxidation device, a circulating lift pump, a wastewater cooler and a steam-water separator; the wastewater treatment method adopting the system is simultaneously provided; the system improves the treatment efficiency, and solves the problem that high-concentration organic wastewater and high-difficulty wastewater can not be treated by previous conventional catalyzed oxidation systems; the system has a compact structure, is small in occupied space, high in automation degree, simple in operation and high in treatment speed, does not produce sludge at all, and is relatively low in the operating cost.

Description

technical field [0001] The present invention relates to the field of wastewater treatment. Specifically, a magnetically strengthened ultraviolet light microwave composite pressure swing catalytic oxidation wastewater treatment system and a wastewater treatment method are designed. The system is used to treat high-concentration organic wastewater and those that cannot be treated by biological methods. Difficult waste water. Background technique [0002] High-concentration refractory organic wastewater refers to a type of industrial wastewater with poor biodegradability and refractory organic pollutants (soluble polymers or macromolecular organic substances). Its BOD5 / COD value is very small, usually less than 0.15, while COD is very High, high salinity, high chroma, organic wastewater containing toxic and harmful components. The amount of water is not very large, but the pollution load is very large, and it is difficult to achieve the expected degradation effect by using tra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/12C02F1/30C02F1/32C02F1/72
Inventor 刘风鸣
Owner 刘风鸣