Юрий Александрович,Олег Юрьевич,Анатолий Сергеевич
申请号：
EA201600287
公开号：
EA201600287A1
申请日:
2016.04.21
申请国别(地区):
EA
年份:
2017
代理人:
摘要：
The invention relates to the field of industrial breeding of fish and can be used for the cultivation of commercial fish species in installations of closed water supply. In the first embodiment of the proposed method of growing commercial fish species in closed water supply installations, fish are placed in water-filled tanks, periodic feeding of fish with the maintenance of water parameters and water supply indicators. The volume of water supply to the nitrificator is set in the range of values from 7 to 14 of the volume of the capacity of the nitrificator in 1 hour with the speed of washing the surface of the latter from 0.17 to 0.48 of the height of the nitrification meter per 1 minute, and the volume of water supply to the denitrifier is set to values from 9 to 1.2 of the volume of a denitrificator's capacity per hour with the speed of washing the surface of the latter in the range of values from 0.029 to 0.031 of the height of the denitrifier meter of 1 minute. The temperature of the water is maintained in the range of values from 11 to 28 ° Celsius, the pH of the water is maintained in the range of values from 7.0 to 7.2, the oxygen concentration in the water at the input of the nitrifier is maintained at a level not lower than 4.4 mg / l, and the concentration oxygen at the inlet of the denitrifier is maintained in the range from 0.9 to 1.2 mg / l Mechanical filtration of water is continuously carried out with fresh water supplied to the air channel from outside in the range of values from 0.5 to 0.9 per day of the nitrification volume. Water is irradiated with ultraviolet radiation with an intensity of irradiation from 40 to 90 mJ / cm in the spectrum of the ultraviolet wavelength range from 205 to 315 nm, and the pH of the water is adjusted by adding alkali to it. In this case, an increase in the concentration of oxygen in water and, accordingly, a decrease in the concentration of carbon dioxide in water is produced by aeration with its air. Heating of wate
