5 results about "Microcystis" patented technology

The invention relates to Flavobacterium cylindricum NY-1 and application thereof in prevention and treatment of microcystis water bloom, and belongs to the technical field of microorganisms, the Flavobacterium cylindricum NY-1 is preserved in Guangdong Microbial Culture Collection Center on February 11, 2026, the preservation number is GDMCC 67866, the Flavobacterium cylindricum NY-1 can efficiently and specifically target a microcystis population structure and drive the microcystis population structure to complete a'sedimentation-extinction 'process, and the Flavobacterium cylindricum NY-1 can be applied to prevention and treatment of microcystis water bloom. After the algal inhibition agent is applied to a natural water body with microcystis bloom for 72 hours, the algal inhibition rate reaches up to 99%, and the microcystis in the water body is almost completely removed, so that the microcystis bloom is efficiently treated.

The invention discloses a method for removing harmful algae. According to the method, silicate hollow microspheres are selected for flotation of the harmful algae such as microcystis and anabaena. In order to enhance the effect of removing harmful algae, aluminum salt containing Al < 3 + > is added into the water body environment before the flotation process. The method is simple in technological process, low in economic cost, suitable for removing harmful algae with different cell densities and high in removal rate under different pH conditions. The used silicate hollow microspheres have low density and high strength, the surfaces of the silicate hollow microspheres have certain roughness, combination with the two microalgae is facilitated, the method causes less pollution to the environment, and the floating beads can be repeatedly used for 3-4 times.

To provide an ecologically safe method for controlling and sterilizing algae. [Solution] The present invention discloses a method for inhibiting and sterilizing algae, wherein diacetyl is added to the water to be treated and acts under sunlight irradiation to inhibit the growth of algae and fungi, the algae being Skeletonema costatum, synonyms, Microcystis erginosa, or red tide dinoflagellates, and the fungi being Escherichia coli or Staphylococcus aureus. The present invention uses diacetyl as the active substance, can exert algae-inhibiting and sterilizing effects under natural light alone, has good selectivity, is environmentally friendly, economical and efficient, and is applicable to algae-inhibiting and disinfection of shallow lakes, swimming pools, seawater / freshwater aquaculture farms, or landscape water bodies.

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.