The application of biological filters (fixed film processes) for the removal of ammonia from brackish or salt wastewaters from fish farms is discussed. The biological removal of ammonia in fixed-film processes is explained and design examples for ammonia removal in either trickling filters or rotating biological contactors are discussed.
HOCHHEIMER, J.N. WHETON, F.W. (1998): Biological Filters: Trickling and RBC Design. In: LIBEY, G.S. ; TIMMONS, M.B. (1998): Proceedings of the Second International Conference on Recirculating Aquaculture Roanoke. Virginia: 291–318. URL [Accessed: 18.03.2010]