AQUASEF

ACTION B4 - PROOF OF THE BEST TECHNIQUES FOR BY-PRODUCTS VALORISATION

ACTION B4: PROOF OF THE BEST TECHNIQUES FOR BY-PRODUCTS VALORISATION

Among the products obtained in aquaculture production it is very common to find CO2 proceeding from a combustion system and from native microalgae that are developed in culture tanks open to the atmosphere, facilitate photosynthetic activity due to the reception of  ambient light. The growth of microalgae as a subproduct usually occurs spontaneously, but is very favorable for improving the diet of fish and therefore to improve animal welfare and the final quality of the product. Currently the production of microalgae in fattening tanks and adjacent tanks is not optimized and microalgae are only produced by the natural development of these species. This project arises to promote the productivity of microalgae cultivation in tanks designed to this effect, increasing the mix of nutrients and incorporating the organic load from the effluent of a mollusc wastewater treatment  that ESTEROS DE CANELA operates in the same locality where they perform the fish farms.

This action therefore leads to a double benefit: to increase productivity of microalgae (and thereby to improve animal welfare and the quality of the final product) and to reduce the organic load of a spill, acting here microalgae as natural purification system. Moreover, it is noteworthy that for microalgae is essential to develop rapidly CO2 dissolution during peak hours of sun. Therefore, in this project, it is foreseen to recover flue gas of a boiler, used to heat water, and of a well whose amount of CO2 dissolved in water is high. To this end, generating CO2 microbubbles devices will be incorporated into a culture of microalgae in photobioreactors, with the aim of producing microalgae as a nutritional supplement for larval fish farming. The boiler, the electrolyzer and photobioreactors will be placed on the fry culture romm in ESTEROS DE CANELA or in a nearby space. Similarly, open tanks (carousel) for microalgae cultivation to be used in the fattening of fish will be located in adjacent to the hatchery (farming fry) of ESTEROS DE CANELA. 

This action of demonstration of the best techniques of recovery of products is divided into three tasks:

logoaquasefB.4.1.CO2 fixation through cultivation of microalgae

 

logoaquasefB.4.2. Optimization of complementary cultivation of microalgae

 

logoaquasefB.4.3. Assessment of the improvements made by the integrated cultivation of microalgae

 

 

 

 

 

 

 

 

Partners:

 

 

This Project has been co-funded by the European Commission through the LIFE+ 2013 Program 

logo life Ref.: LIFE13ENV/ES/000420 

© 2015 Proyecto LIFE+ AQUASEF