Acronym GREAT
Category
Marine Biotechnology
Title Granular microalgae-bacteria biomass for the treatment of aquaculture wastewater Programme Nat. Programme (supported by ESIF)
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National-European Coordinator Catarina Raquel Leite Amorim Coordinator email NA
Coordinator institution
UCP - Universidade Católica Portuguesa (Portugal)
Institutions involved
CESAM - Centre for Environmental and Marine Studies (Portugal) ,
Start year 2018 End year 2021 Funding (€) € 236,529 Website https://www.cesam-la.pt/projetos/great-biomassa-granular-de-microalgas-bacterias-para-o-tratamento-de-aguas-residuais-de-aquicultura/ Summary Marine aquaculture can negatively affect the environment. This activity has a significant impact on the ecosystem, with high water consumption and the high volume of effluent produced being the main disadvantages. Aquaculture Recirculation Systems (RAS) are extremely important as they allow the recycling/reuse of water, promoting the concept of circular economy. These systems reduce water consumption, thus protecting the environment and reducing economic costs. For adequate production, aquacultures use antibiotics as therapeutic, growth-promoting and prophylactic measures. The emission of these micropollutants into waterways is a source of contamination, which can favor the emergence of antibiotic resistance genes. As such, it is necessary to develop new technologies capable of adequately treating wastewater from marine aquaculture industries, ensuring the quality of water treated for reuse. Biofilm systems are very promising for wastewater treatment, especially when they contain micropollutants (eg antibiotics). The high biomass concentration and layered structure of biofilms offer protection to the microbial community against the adverse conditions of wastewater. Although they belong to different trophic levels, both microalgae and bacteria have a high capacity to deal with recalcitrant wastewater. Thus, the combination of these organisms in the same structure could benefit wastewater treatment, as the synergy established could make removal more efficient. The present project aims to develop a granular biomass made up of microalgae and bacteria. These granules will be used to inoculate a reactor intended for the treatment of marine aquaculture wastewater. Microalgae will be isolated from marine environments and the most promising in dealing with aquaculture wastewater will later be used, in combination with activated sludge, in the production of mixed granules. After biogranulation, the ability of these aggregates to treat marine aquaculture wastewater in SBR reactors, which are compact and energy-efficient solutions, will be evaluated. As the technology developed aims to produce water to be reused in aquaculture, microbiological safety and the quality of recycled water must be ensured. Furthermore, to better understand the evolution and dynamics of the populations that make up the granules, the microbial community will be studied using molecular biology techniques. Collectively, the result of this project will be an added value for wastewater treatment, but will also benefit the aquaculture industries, and ultimately, society through the reduction of energy and water consumed, as this resource can be reused. in industrial facilities.
Keywords
Water quality;
Algae;
Wastes;
Technology;
Land-based aquaculture;
Recirculating systems;
Bacteria;
Waste water;
Marine Region
0
NA
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