Method and device for controlling water body eutrophication

Abstract

The invention discloses a method and a device for controlling water body eutrophication, and belongs to the field of science and technology of environmental protection. The device consists of an impeller, an ozone generator, N 'aeration islands' and guide pipes, wherein the impeller is arranged on the surface of the water body, has fixed coordinates, is submerged below the surface of water and rotates along a horizontal direction; the ozone generator and the impeller are positioned on the same platform; the N 'aeration islands' are distributed in the water along the periphery of the ozone generator at a certain distance; and the guide pipes are used for introducing ozone to the 'aeration islands'. The air containing ozone generated by the ozone generator is delivered to the 'aeration islands' through the guide pipes for aeration so as to form an ozone gas-liquid mixing area; the water driven by the impeller is rotated and pushed to the circumstance to form horizontal type 8-shaped helixes which horizontally and circularly flow through each 'aeration island' to perform oxidation reaction with the 'aeration islands'; and the water at the bottom layer are circulated again and again to the surface layer to perform exposure and aeration so as to realize eliminate nutrient salts of ammonia nitrogen and the like and inhibit pathogens in the water body.

Description

Technical field [0001] The invention relates to a method and a device for controlling eutrophication of water bodies, which belong to the field of environmental protection science and technology. Background technique [0002] To control the eutrophication of water bodies, on the premise of cutting off the external nutrient source, the following problems must be solved at the same time: 1. Make the water body flow; 2. Remove the ammonia nitrogen; 3. Reduce or remove the total phosphorus; 4. Make the water body Reduce other COD and BOD to allowable levels, etc. To this end, people have used biology, chemistry, physics and their composite technologies to control the eutrophication of water bodies. For example, in the world's representative methods of treating eutrophication in water bodies, microbial methods and bottom sludge removal methods are effective but costly, and the treatment of large water bodies is a huge project and requires regular treatment; algicides only treat ...

AI Technical Summary

Problems solved by technology

For example, in the world's representative methods of treating eutrophication in water bodies, microbial methods and bottom sludge removal methods are effective but costly, and the treatment of large water bodies is a huge project and requires regular treatment; algicides only treat the symptoms but not the root cause; The cost of the method is higher and cannot be sustained and effective. It does not solve the problems of water flow and other problems, which leads to re-corrosion and re-treatment. Therefore, it is difficult to achieve low-cost, low-carbon, sustainable high-efficiency, broad-spectrum, and ecological pollution control.

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