A two-stage adsorption and two-stage degradation rotary microwave wastewater treatment device and method

Abstract

The invention discloses a two-segment adsorption and two-segment degradation rotation type microwave wastewater treatment device and a method. The device is mainly specific to enterprises which produce high-concentration organic wastewater, wherein the technological process of two-segment adsorption two-segment degradation is applied, the processes for treating organic wastewater can be continuously conducted, the efficiency of treating organic wastewater is improved, and the cyclic utilization of a catalyst is realized.

Description

Technical field [0001] The invention belongs to the field of wastewater treatment, and specifically relates to a two-stage adsorption and two-stage degradation rotary microwave organic wastewater treatment device and method. The device is mainly aimed at enterprises that produce high-concentration organic wastewater, which uses a two-stage adsorption and two-stage degradation process, which can continue the process of treating organic wastewater, improve the efficiency of organic wastewater treatment and realize the recycling of catalysts. Background technique [0002] With the rapid development of industry, there are also various environmental problems. Among these problems, industrial organic wastewater is one of the more difficult to treat. Organic wastewater is usually highly colored, toxic and difficult to degrade naturally. Once discharged into the natural environment, it will cause serious pollution to soil and water resources. Especially in countries like ours where the ...

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Problems solved by technology

The microwave wet catalytic oxidation process uses the heating performance of microwaves to oxidize organic matter under high pressure conditions. This reaction requires harsh reaction conditions and is not easy to achieve.

[0004] Some of the above studies have achieved good results, but this is only reflected in the experimental conditions, and the whole process is obtained under discontinuous conditions, and the catalysts used in some reactions are also disposable, which limits the entire process. practical application of

[0005] Although there are already rotary microwave wastewater treatment devices, the existing rotary microwave wastewater treatment devices degrade the catalyst plates that absorb organic waste directly under the action of microwaves. High-concentration organic wastewater contains a large amount of organic waste. When the concentration of waste is high, it is easy to realize the adsorption of organic waste, but when the organic waste water flows to the second half, the content of organic waste in the organic waste water decreases, and at this time a large amount of organic waste has been adsorbed on the catalyst plate, so it will Inhibit organic waste from continuing to be adsorbed on the catalyst plate, making it difficult to achieve efficient and thorough treatment of organic waste water

[0006] In addition, the catalyst plate adsorbed with a large amount of organic waste will be impregnated with a large amount of water. When it is directly degraded under the action of high-power microwaves, a large amount of water vapor will be generated, and the water vapor will dilute the oxidizing gas injected during degradation. It affects the degradation efficiency of organic waste. In order to achieve the ideal degradation efficiency, it is necessary not only to increase the supply of oxidizing gases, but also to increase the path length of organic waste water or reduce the flow rate of organic waste water, resulting in the cost of organic waste water treatment. Improvement, reduction of organic wastewater degradation efficiency and even shortening of catalyst life

At the same time, because the gas generated during the degradation of organic matter is mixed with a large amount of water vapor and oxidizing gas, it is difficult to effectively use it, and it can only be discharged after collection and treatment, which increases the cost of waste gas treatment

[0007] To sum up, in the prior art, there is still no effective solution to the problem of continuous, efficient, thorough and low-cost treatment of organic wastewater

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