Method for treating blue-green algae in rivers, lakes and reservoirs

Abstract

The invention discloses a covered light-shading film / enzyme / microbial inoculant combined technique for treating blue-green algae in rivers, lakes and reservoirs by combining water surface covered light-shading films with a biological enzyme and a microbial inoculant. According to the characteristic that photosynthesis is needed by the growth of the blue-green algae, a light-shading technique of the covered light-shielding film is adopted for blocking the photosynthesis of the blue-green algae by completely or partially covering the rivers, lakes and reservoirs to be treated respectively by using the two or more layers of perforated light-shading films; furthermore, the microbial inoculant is used for decomposing, absorbing and converting eutrophic substances according to the eutrophicationenvironment needed by the growth of the blue-green algae, thus changing the eutrophication state; the biological enzyme is used for destroying the protein of blue-green algae living bodies, thus achieving the effects of killing the blue-green algae and inhibiting the growth of the blue-green algae; the biological enzyme and the microbial inoculant are used for cracking, decomposing and absorbingalgal toxin produced after the death of the blue-green algae. The technique provided by the invention is safe and efficient, and has remarkable social and economic benefits.

Description

technical field [0001] The invention relates to the field of water environment treatment, in particular to a composite technology for covering the water surface of rivers, lakes and reservoirs with a shading film combined with microbial agents and biological enzymes to control blue-green algae. Background technique [0002] With the development of social economy and the increase of population, the problem of water environment pollution in our country is becoming more and more serious. At present, there is a certain degree of cyanobacteria accumulation in rivers, lakes and reservoirs in our country, and the outbreak of cyanobacteria will cause the following hazards: 1) affect the safety of drinking water; 2) affect the safety of the environment and reduce the quality of water resources; 3) endanger the aquaculture industry; 4) Cause secondary pollution of water bodies, change the community structure of rivers and lakes, and reduce species diversity; 5) Algal toxins are produc...

AI Technical Summary

Problems solved by technology

However, large-scale dredging will destroy the original biological population structure and ecological environment of rivers, lakes and reservoirs, weaken their self-purification function, and have a negative effect on ecological restoration; manual salvage is inefficient and expensive

[0006] The single biological method has no secondary pollution to the treatment of cyanobacteria, and can degrade pollutants, which has a synergistic effect on ecological restoration, but it cannot solve the problem of algal toxin residues, and the treatment efficiency and effect of cyanobacteria will be affected after a large-scale outbreak

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