Control method for blue algae

Abstract

The invention provides a control method for blue algae. According to the method, rainmaking above a water body is employed to reduce surface temperature of the water body; rainmaking is realized by sucking up water at middle and lower parts or at bottom of the water body and / or sediment and spraying the water and / or sediment onto the surface of the water body. A movable or fixed fire boat, a water sprayer or a surface aeration machine can be used for rainmaking above the water body. Suction of water at middle and lower layers and / or sediment and spreading of the water and / or sediment onto the surface of the water body artificially lead to turbidity of the water body; production capacity of algae is extremely limited when the water body is turbid, thereby achieving the purpose of controlling hypertrophy of algae. Through adsorption capability of the sediment of the water body, alga cells in the water body are adsorbed and settle to the bottom of the water body, and therefore, concentration of algae in the water body is greatly reduced in a short time, thereby suppressing the tendency of outbreaks of algae and reducing surface temperature of the water body. The control method provided by the invention has the advantages of a simple design, convenient operation, low cost and easy popularization and is applicable in a water area with a large area.

Description

technical field [0001] The invention relates to a control method for algae, in particular to a control method for cyanobacteria. Background technique [0002] The environmental problems caused by the cyanobacteria outbreaks caused by the eutrophication of water bodies have attracted more and more attention from the society, but the effect of many efforts is limited. The problem of cyanobacteria control is still serious. [0003] Like all plants, the growth of algae also requires suitable external objective conditions. Specifically for algae, the objective factors that restrict the growth of algae in water bodies are light, nutrient nitrogen, phosphorus, temperature, and oxygen content in water bodies. [0004] Throughout the domestic and foreign measures to control cyanobacteria outbreaks, there are mainly the following types, and now we will introduce and evaluate their deficiencies or mistakes one by one: [0005] 1. Biological Control Law. Cyanobacteria are the food of...

AI Technical Summary

Problems solved by technology

Its disadvantages are: it is difficult to achieve the goal in a short time, and it costs a lot of money

Dianchi Pollution cost 4.8 billion failed treatment, which shows that the above artificial treatment measures are very limited