Regenerator til iltning af vand og rensning af spildevand samt gyllebehandling

摘要

The invention relates to an apparatus and a process for treating liquid by introducing gases, in particular air, into liquids. The apparatus has a liquid (5)-filled, preferably hemispherical reaction vessel (1), in the bottom region of which is arranged a motor (3)-driven impeller (2), which is designed to generate a flow with reduced pressure, directed downwards in the centre, drawing in bubbles.