Water area blue-green algae treatment method based on biological competition principle and device used therefor

Abstract

The invention discloses a water area blue-green algae treatment method based on biological competition principle and a device used therefor, the method comprises the following steps: firstly finding amost easily-enriched area of blue-green algae, namely a concave bank of a water area, arranging an algae blocking net around the most easily-enriched area of the blue-green algae, fast removing a large amount of the blue-green algae in a manual or mechanical fishing mode, planting emergent aquatic plants on the shore of the water area so as to fundamentally improve water quality, arranging treatment tanks in a larger area and in the water area, gradually killing the blue-green algae through the intensively-arranged treatment tanks, collecting dead blue-green algae to prevent the dead blue-green algae from continuously polluting the water area, and collecting and treating the treatment tanks according to a preset rule so as to facilitate the recycling of the treatment tanks.

Description

technical field [0001] The invention relates to a method for controlling cyanobacteria blooms, in particular to a water area cyanobacteria treatment method based on the principle of biological competition, and also relates to a cyanobacteria treatment device used in the method. Background technique [0002] Water bloom is a concentrated expression of ecological balance damage in the state of eutrophication of water body, and cyanobacteria bloom is the most common in my country. Cyanobacteria, also known as blue-green algae and cyanobacteria, contain photosynthetic pigments such as chlorophyll a and light-harvesting pigment phycobiliprotein, which can perform oxygen-release photosynthesis. The morphology of cyanobacteria is quite different, and it is known that there are two shapes of spherical and rod-shaped single-cell filamentous polymers (cell chains). The diameter and width of most cyanobacteria individuals are 3-10 μm. When many individuals gather together, they can fo...

AI Technical Summary

Problems solved by technology

[0003] These commonly used treatment methods can alleviate the harm of cyanobacteria to a certain extent, but they all have their own shortcomings;

[0004] In addition, after the death of lake algae, they will continue to deposit to the bottom of the lake, rot and decompose continuously, and will also consume a large amount of dissolved oxygen in the deep water body. Caused a large number of fish in the water to suffocate and die, and aquatic resources were destroyed

This anaerobic state can trigger or accelerate the release of nutrients accumulated in the sediment, resulting in a higher load of nutrients in the water body, forming a vicious cycle of eutrophic water bodies. This kind of water body decay and deterioration will eventually lead to the aging and decline of lakes. Therefore, the current Although some common treatment methods can kill blue-green algae in large quantities, they cannot collect blue-green algae in time, and fail to fundamentally eliminate the harm caused by blue-green algae

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