Chemical oxidation-photocatalysis combined device

Abstract

The present invention relates to a chemical oxidation-photocatalysis combination apparatus, which comprises: a main box body, which mainly comprises a light-transmitting reaction space and a lightproof light source space, and the two spaces are separated by a light-transmitting separation plate; an aeration device is laid at the bottom of the reaction space; a liquid inlet, a medicine inlet and aliquid outlet are formed in the side surface of the reaction space; a catalyst is placed in the reaction space; and an artificial light source is arranged in the light source space. The chemical oxidation-photocatalysis combined device disclosed by the invention can realize deep degradation of high-salt and high-ammonia-nitrogen wastewater by utilizing a natural light source and an artificial light source at the same time and combining a chemical oxidation effect and utilizing an efficient catalyst; sunlight and an artificial light source can be utilized simultaneously, and the advantages of low cost of sunlight and controllability of the artificial light source are considered; according to the invention, the immobilized catalyst can be utilized, and the dispersed powder catalyst can alsobe used by taking out a loading platform, so that the applicability is wide; and a box cover can be opened to be conveniently externally connected with a stirring device, and the compatibility is high.

Description

technical field [0001] The invention relates to a treatment device for high-salt and high-ammonia-nitrogen wastewater, in particular to a combined chemical oxidation-photocatalysis device. Background technique [0002] In recent years, with the increasing urban population and the continuous development of industry, water pollution accidents have occurred frequently, posing a serious hazard to human existence. Among them, the eutrophication of the water body is serious, which directly threatens the production, life and ecological balance of human beings. Ammonia-nitrogen inorganic pollutants are one of the main factors causing eutrophication of water bodies. A large amount of ammonia-nitrogen will lead to the proliferation of aquatic organisms that use nitrogen as nutrients, destroying the balance of the water environment. At the same time, the released algae toxins can enter the food chain through fish, endangering human health. Moreover, ammonia nitrogen is also a highly ...

AI Technical Summary

Problems solved by technology

However, these conventional methods are difficult to meet the treatment requirements of high-salt and high-ammonia-nitrogen wastewater under the new situation.

The main reasons are as follows: ①The water quality of wastewater is complex: Industrial wastewater with high ammonia nitrogen is often accompanied by high salt and highly toxic organic substances, such as power plant wastewater, landfill leachate, concentrated water from membrane filtration, etc. Traditional back-end biological denitrification technology can no longer be used ; ②The discharge standard of ammonia nitrogen wastewater is improved: with the implementation of a series of new environmental protection regulations and stricter water quality discharge standards, the discharge concentration of ammonia nitrogen wastewater has changed from the secondary standard of 25mg / L to the currently widely implemented primary standard (15mg / L), and there is a trend of becoming more and more stringent, and it is difficult for conventional treatment methods to meet the standards stably; ③The secondary pollution caused by the water treatment process itself should not be underestimated: the safety and environmental friendliness of the water treatment method itself is becoming more and more Attention has been paid to it, and methods such as breakpoint chlorination are subject to many restrictions due to secondary pollution

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