METHOD FOR BIOLOGICAL REHABILITATION OF MUNICIPAL BASINS Russian patent published in 2007 - IPC A01K61/00 A01K63/04 

FIELD: ecology and aqua culture, in particular, recovering of disturbed biocenoses and fish stocks in natural basins, including those within city limits, for cleaning thereof.

SUBSTANCE: method involves selecting and preparing objects by holding said objects every day in solution of biologically active preparation having concentration of 0.1-10.0 ml/l with duration of exposure of 30-60 min; settling prepared hydrobionts in basin. During selection of hydrobionts, physiological features and compatibility factor are taken into consideration. Feeding is accompanied with adding of biologically active preparation used at the rate of 1-50 ml/kg. Biologically active preparation is mineral water with general mineralization extent of 2-4 g/dm³ and content of calcium cations of 30-150 mg/dm³, magnesium cations of 390-450 mg/dm³, potassium cations of 50-70 mg/dm³, sodium cations of 10200-5320 mg/dm³, iron cations of 11-57 mg/dm³, selenium cations <1 mg/dm³, copper cations of 1-3 mg/dm³, anion-sulfates <50 mg/dm³.

EFFECT: increased efficiency in recovering of basin fauna and flora by formation of stable association, increased survival rate of hydrobionts and improved ecology of municipal landscape.

4 cl, 2 ex