A method for breaking the walls of cyanobacteria cysts

Abstract

The invention provides a blue-green algae blastophore wall breaking method, which includes the following steps that a plurality of volute well algae collectors are used for sucking blue-green algae pulp on the surface of a water body, the blue-green algae pulp are transported to a peak-regulating pool, and when the concentration of blue-green algae slurry in a sealed pipeline is lower than a set concentration, the volute well algae collectors stop sucking blue-green algae pulp on the surface of the water body; shearing treatment is carried out in a homogenizing pump, and by circulation of a return pipe, the blue-green algae blastophores in the blue-green algae pulp are dispersed into a single-cell suspension; a flocculant is added into a separation pool and mixed sufficiently, and the blue-green algae pulp is conveyed into a spiral centrifugal separator, so that blue-green algae residue and water are separated. According to the method, since the volute well algae collectors in a blue-green algae harvesting platform are utilized to suck the blue-green algae pulp on the surface of the water body, the moisture content in the blue-green algae pulp is decreased, later agent dosage is reduced, and the efficiency of processing is increased; the method can effectively break the walls of the blue-green algae blastophores to release the moisture wrapped among the blue-green algae cells, a dehydration effect is remarkable, and thereby the moisture content of the final blue-green algae slurry is decreased to 40 to 50 percent.

Description

technical field [0001] The invention relates to the technical field of water body treatment, in particular to a method for breaking the walls of cyanobacteria cysts. Background technique [0002] With the increasingly serious eutrophication of water bodies, blue-green algae in water bodies multiply in large numbers. When the content of cyanobacteria in the water body increases, it will seriously affect the oxygen content in the water body, thereby causing serious damage to aquatic organisms and ecosystems. [0003] At present, the most effective way to deal with blue-green algae is mechanical salvage. The salvaged cyanobacteria pulp contains a large amount of nutrients such as water, nitrogen, and phosphorus, which is easily corrupted, emits a bad smell, and has secondary pollution. In the prior art, the water content of the algae mud obtained by pressure filtration and centrifugal dehydration is between 80% and 90%, so the blue algae mud will still appear corrupt. At the...

AI Technical Summary

Problems solved by technology

The salvaged cyanobacteria pulp contains a large amount of water, nitrogen, phosphorus and other nutrients, which is easily corrupted, emits bad smell, and has secondary pollution

In the prior art, the water content of the algae mud obtained by pressure filtration and centrifugal dehydration is between 80% and 90%, so the blue algae mud will still appear corrupt.

At the same time, the cysts of cyanobacteria cannot be effectively broken during the harmless treatment of cyanobacteria in the prior art

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