ACTION B3: PROOF OF THE BEST OXYGENATION TECHNIQUES IN SALT WATER CULTIVATING TANKS

ACTION B3: PROOF OF THE BEST OXYGENATION TECHNIQUES IN SALT WATER CULTIVATING TANKS

In aquaculture facilities it is very common that the main energy consumption is the one required for the water oxygenation systems. Furthermore, when liquid oxygen is used as feedstock for the oxygenation of water it must be taken into account that this liquid oxygen is produced almost exclusively from the distillation of air, a highly energy demanding process requiring cooling air to cryogenic conditions (in around -180ºC). For these reasons, the impact coming from culture tanks oxygenation in carbon footprint is the second most important in this sector, (when it is obtained though a gas company supply), only behind carbon footprint associated with the production of feed and exceptions, and even ahead of the water pumping systems.

To reduce this environmental impact the following actions are proposed in AQUASEF project:

 

logoaquasefB.3.1. Developing a detailed study of oxygen consumption of the facility and seasonal consumption. 

 

logoaquasefB.3.2. Installing microbubble generating devices to oxygenate fry rearing tanks

 

logoaquasefB.3.3 Installing high efficiency aerators to oxygenate fish farming tanks