Paper Title
Biofilters in Recirculation Aquaculture System

Abstract
Biofilter can be an effective solution for producing high quality water and saving water for recirculation aquaculture system. This paper gives an overview on the concepts, merits and demerits of the typical biological filtrations for aquaculture such as submerged filter, trickling filter, rotating filter, bead filter and fluidized bed filter. In this paper, a concept design of a trickling biofilter for barramundi (Lates Calcarifer) recirculation systems in New South Wales Fisheries is discussed in details. Keywords - Recirculation aquaculture system, biofilter, concept design