METHOD OF CYANOBACTERIAE BLOOM PREVENTION IN WATER RESERVOIRS Russian patent published in 2009 - IPC C02F3/32 

FIELD: chemistry; water purification.

SUBSTANCE: method provides algolisation of water reservoir with adding suspended green microalgae Chlorella vulgaris twice in spring when water temperature in bottom reservoir reaches +5 - +10°C and in 2-3 weeks. In winter freezing over, ice is cleared out from snow 1/3 to 50% of reservoir area. Without freezing over, in winter and spring, water reservoir is hydromechanically aerated every 2-3 weeks. Algolisant is suspended Chlorella vulgaris strain IGF № C-111 of transmittance 1.4-6% in amount 15-25 l per 1 million m³ of water in deep-water floor and 15-25 l/hectare in shallow reservoir floor of depth not exceeding 5 m. In spring, algolisant adding concurs with hydromechanical aeration.

EFFECT: prevented bloom ensured with lowered concentration of cyanobacteriae.

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