Fisheries and Aquatic Sciences
- 제1권2호
- /
- Pages.242-249
- /
- 1998
- /
- 2234-1757(eISSN)
Biofilm Processes for Volume Decrease in Recirculating Water Treatment Systems for Aquaculture
- Kim Jeong-Sook (Pusan Development Institute) ;
- Yoon Gil-Ha (Department of Aquaculture, Pukyong National University) ;
- Ghim See-Jun (Department of Environmental Engineering, Pukyong National University) ;
-
Kang Lim-Seok
(Department of Environmental Engineering, Pukyong National University) ;
- Lee Byung-Hun (Department of Environmental Engineering, Pukyong National University)
- 발행 : 1998.12.01
초록
The engineering aspect of water treatment processes in the recirculating aquaculture system was studied. To recycle the water in the aquaculture system, a wastewater treatment process was required to maintain high water quality for the growth and health of the cultured fish. In this study, three different biofilm processes were used to reduce the concentration of organic matters and ammonia from the recirculating water - two phase fluidized bed, three phase fluidized bed, and trickling filter. The objectives of this research were to evaluate the optimum treatment conditions of the biofilm processes for the recirculating aquaculture system, and thereby reduce the volume of biofilm processes, which are commonly used for the recycle water treatment processes for aquaculture. The result of this study showed that the removal efficiency of organic matters by trickling filter was found to be lower than that of the fluidized bed. In the trickling filter system, anthracite showed better organic removal efficiency than crushed stone as a media. In the two phase fluidized bed, the maximum removal efficiency of either organics or ammonia was obtained when both the packing rate of media was maintained to