Cleansing System for a Fish Tank; and Method of Cleaning an Aqueous Medium from a Fish Tank

摘要

Disclosed is a cleansing system configured to receive aqueous medium from at least one fish tank and to return a cleaned aqueous medium to the at least on fish tank. The cleansing system may comprise a cleansing system inlet centrally located in the cleansing system. The inlet is in communication with a mechanical filter configured to mechanically filtering the aqueous medium. The inlet is arranged above and substantially surrounded by a first reactor section configured to biological filtration of the aqueous medium. The first reactor is substantially surrounded by an annulus section. The annulus section is parted in arc-sections of at least a second reactor; and a degas-sing section configured to degassing the aqueous medium. There is a cleansing system outlet configured to outletting the now cleaned aqueous medium from the annulus section. The cleansing system outlet is from the degassing section. Also disclosed is a recirculation aquaculture system, comprising a cleansing system and a fish tank and a method of cleansing water from a fish tank.