DESCRIZIONE
The invention relates to a method for treating circulating water in recirculation systems, in particular in recirculating systems for aquaculture, wherein at least a partial stream of circulating water passed through at least one bypass and processed in the bypass by means of at least one ultra and / or microfiltration and after the ultra- and / or microfiltration is returned to the circulating water, wherein the control of the mass flow of the partial flow in dependence of one or more characteristic of the water quality of the circulating water parameter takes place.