Potential of nanofiltration technology in recirculating aquaculture systems in a context of circular economy

• Commercial nanofiltration membranes show high rejection towards RAS-relevant off-flavor compounds and contaminants of emering concern. Water productivity, need pretreatments, partial all the salts nontoxic organic matter are concerns for integration in RAS. Nanofiltration can be used to avoid accumulation unwanted RAS with degree recirculation. The large number innovations proposed recent years eventually boost this technology intensive In recirculating aquaculture systems (RAS), degrees recirculation beneficial from an environmental perspective, but they also imply risks substances water loop. fundamental features developments (NF) potentially make attractive applications Indeed, NF retain dissolved emerging concern, molecules, inorganic species (e.g. nitrate nitrite), thus principle applied order remove such substances. On other hand, productivity pre-treatments remain causes concern Moreover, partially ions matter, altering composition a way that might not farmed fishes. For reason, it is hard foresee use as alternative present biological treatments. contrary, technologies appear highly suitable treat side-streams fish tank effluents after treatments prevent accumulate reaching critical concentrations Furthermore, ongoing expected facilitate their