2 results about "Microcystis" patented technology

This invention discloses a numerical simulation method and apparatus for Microcystis blooms coupled with multiple hydrodynamic effects, comprising the following steps: S1, collecting basic data required for constructing a Microcystis bloom model; S2, establishing a fluid dynamics model based on a preset turbulence model, and solving the fluid dynamics model based on preset boundary conditions; S3, constructing a Microcystis dynamics model based on the response relationship between hydrodynamic elements and Microcystis population migration, buoyancy transport, growth, death, population size, and cell density, with governing equations including convection-diffusion equations, Microcystis vertical migration equations, Microcystis growth rate equations, Microcystis death rate equations, population diameter dynamic equations, and cell density dynamic equations; S4, coupling the fluid dynamics model and the Microcystis dynamics model, and obtaining the simulated concentration distribution results of Microcystis through parameter calibration and verification; This invention can fully reflect the key role of hydrodynamic elements in the bloom process, providing reliable support for bloom prediction and forecasting.

This invention discloses a method for counting Microcystis colonies based on controlled ultrasonic depolymerization, relating to the field of aquatic ecological monitoring technology. The method involves obtaining a pretreated water sample after impurity removal from the source water sample. The supernatant of the pretreated water sample is then collected and filtered to remove small and large particle sizes of impurities. After a second filtration to enrich the algae, a Microcystis cell suspension is prepared. The Microcystis cell suspension is then ultrasonically dispersed to obtain a dispersed water sample. A hemocytometer is used to accurately count the number of Microcystis cells. This method overcomes the difficulties of incomplete dispersion or cell damage in Microcystis colonies, enabling accurate counting of Microcystis cells in aquatic ecosystems. The experimental steps are simple, the time required is short, and the number of Microcystis cells can be accurately counted. It can be applied to environmental monitoring, water pollution assessment, and aquaculture management.