Aquaculture 2025

March 6 - 10, 2025

New Orleans, Louisiana USA

Add To Calendar 08/03/2025 11:15:0008/03/2025 11:35:00America/ChicagoAquaculture 2025ENGINEERED-AIRLIFT PUMPS CAN IMPROVE SUSTAINABLE OPERATION OF RAS SYSTEMSGalerie 3The World Aquaculture Societyjohnc@was.orgfalseDD/MM/YYYYanrl65yqlzh3g1q0dme13067

ENGINEERED-AIRLIFT PUMPS CAN IMPROVE SUSTAINABLE OPERATION OF RAS SYSTEMS

Joshua Rosettani*, Marcia Chiasson, Wael Ahmed

 

FloNergia Systems Inc.

Burlington, Ontario, Canada

Joshua.rosettani@flonergia.com

 



Recirculating aquaculture systems (RAS) are gaining popularity as a sustainable solution. One method through which fish farmers can reduce power consumption while improving water quality is replacing conventional technologies used for maintaining water quality with more energy efficient devices such as airlift pumps. This study was performed at the Ontario Aquaculture Research Centre (OARC) to evaluate the FloMov airlift pump technology compared to an optimized control tank equipped with aerators designed for land-based fish production. In the study, mixed sex Arctic char was randomly distributed in two production-scale rearing tanks (1500 fish/tank) where they were maintained using controlled tank aerators (control) or the FloMov (treatment). Measurements such as dissolved oxygen, water velocity, and total suspended solids were recorded through the length of the 3-month study. The results clearly demonstrate that the FloMov airlifts consistently achieved higher dissolved oxygen (DO) levels compared to traditional system. Additionally, measurements of total suspended solids (TSS) throughout the trial period also indicated better performance of the FloMov relative to the control tank. This is mainly due the enhanced water circulation, which also leading to the improved water quality parameters. Figures 1-3 display the above-mentioned results. The   improvement in water quality parameters can significantly affect the fish productivity in a commercial RAS aquaculture setting for land-based fish production.