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http://dx.doi.org/10.5657/kfas.2002.35.2.140

Performance of Parallel Current Air Driven Type Foam Separator in a Pilot-Scale Recirculating Aquaculture System  

Suh Kuen Hack (Division of Chemical Engineering, Pukyong National University)
Kim Byong Jin (Division of Chemical Engineering, Pukyong National University)
Kim Yong Ha (Division of Chemical Engineering, Pukyong National University)
Lee Seok Hee (Division of Chemical Engineering, Pukyong National University)
Suh Cha Soo (Division of Chemical Engineering, Pukyong National University)
Cheon Jae Kee (Division of Chemical Engineering, Pukyong National University)
Jo Jea Yoon (Department of Aquaculture, Pukyong National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.35, no.2, 2002 , pp. 140-145 More about this Journal
Abstract
The performances of a parallel current air driven type foam separator were evaluated in the pilot-scale recirculating aquaculture system. The system was stocked with Nile tilapia (Oreochromis niloticus) at an initial rearing densities of $2\%$, $5\%$ and $7\%$ of water volume of rearing tank and reared for 15, 30, 35 days, respectively. The condensated volume of effluent foam was increasing with increased rearing density. As increasing rearing density from $2\%$ to $7\%$, the protein concentration in rearing tank was increased from 16.6 g/$m^3$ to 21,9 g/$m^3$ and the removal amount of protein through foam separator as increased from 0.99 g/day to 2.5 g/day. But protein concentration ratio in the foam was decreased from 3.2 to 1.9. Changes of the removal amount and the concentration ratios of total suspended solid (TSS) and chemical oxygen demand (COD_cr.) were similar to proteins. The highest concentration ratios of TSS and COD_cr. were 10.2 and 8.4 at 2$2\%$ of rearing density.
Keywords
Foam separator; Recirculating aquaculture system; Protein; Total suspended solid; Chemical oxygen demand; Concentrated ratio; Removal amount;
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