Patent ID: 9693537
Date: 2017-07-04
CPC Classifications: A01K,B01F

Claim:
1. A method of operating a pump in an aquaculture system, the aquaculture system including a culture tank that houses aquatic life, a sensor, an oxygen cone in direct fluid communication with the culture tank through an oxygen solenoid valve, a biofilter in fluid communication with the culture tank and the pump, and a programmable controller in communication with the sensor, the oxygen solenoid, and the pump, the method comprising: recirculating water through the culture tank at a flow rate; recirculating the water through the biofilter; measuring a dissolved oxygen level in the culture tank with the sensor; setting a flow rate threshold with the programmable controller based on the dissolved oxygen level and oxygen requirements of the aquatic life in the culture tank; retrieving a current dissolved oxygen level measured by the sensor; comparing the flow rate threshold with the current dissolved oxygen level measured by the sensor; and when the current dissolved oxygen level is below the flow rate threshold, the programmable controller increasing a speed of the pump to increase the flow rate through the culture tank and operating the oxygen solenoid valve to control an oxygen flow into the culture tank until the dissolved oxygen concentration is greater than or equal to the set flow rate threshold.