Browse > Article
http://dx.doi.org/10.5657/kfas.2004.37.3.179

Characteristics of Foam Generation in Freshwater and Seawater  

SHIN Jeong-Sik (Division of Chemical Engineering, Pukyong National University)
KIM Byong-Jin (Busan Bio Industry Support Center (BISC))
SUH Kuen-Hack (Division of Chemical Engineering, Pukyong National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.37, no.3, 2004 , pp. 179-185 More about this Journal
Abstract
The characteristics of foam generation were assessed for freshwater and seawater using a foam generator. Both in freshwater and seawater, the height of the foam layer increased with initial protein concentrations. The height of the foam layer also increased with pore size of the air distributor. The optimum superficial air velocities (SAV) in freshwater and seawater were 0.84 cm/sec and 0.6 cm/sec, respectively. The height of the foam layer was the highest in pH 3 in freshwater and in the region of pH 5-7 in seawater. The height of the foam layer increased with $NaHCO_3$ concentration in freshwater, and $NaHCO_3$ concentration had little effect in seawater. Removal efficiencies of total suspended solid (TSS) and turbidity decreased with an increase of initial protein concentrations in a batch foam separator both in freshwater and seawater.
Keywords
Foam generation; Protein; Suspended solid; Freshwater; Seawater;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Morrison, C., L.L. Schramm and E.N. Stasiuk. 1995. A dynamic foam method for the estimation of critical micelle concentration at elevated temperatures and pressures. Petrol. Sci. Eng., 15, 91-100
2 Noble, M. and J. Varley. 1998. Protein recovery using gas-liquid dispersion. J. Chromatogr. B, 711, 31-43   DOI   ScienceOn
3 Saleh, Z.S. and M.M. Hossain. 2001. A study of the separation of proteins from multicomponent mixtures by a semi-batch foaming process. Chem. Eng. Process., 40, 371-378   DOI   ScienceOn
4 Suh, K.H. and M.G. Lee. 1995. Treatment of Aquacultural Recirculating Water by Foam Separation-I. Charac- teristics of Protein Separation. J. Kor. Fish. Soc., 28(5), 599-606
5 Suh, K.H., B.J. Kim and S.K. Kim. 2001. The removal of aquacultural waste by foam separator from sea water. J. Kor. Inst. Chem. Eng., 39(2), 237-244
6 Suzuki, Y. and T. Maruyama. 2002. Removal of suspended solids by coagulation and foam separation using surface-active protein. Wat. Res., 36, 2195-2204   DOI   ScienceOn
7 APHA, AWWA and WPCF. 1992. Standard Method for the Examination of Water and Wastewater. 16th ed., American Public Health Association Inc., New York, pp. 132-133
8 Tchobanoglous, G. and E.D. Schroeder. 1985. Water Quality. Addison-Wesley Publishing Company, California, pp. 56
9 Timons, M.B. and S. Chen. 1995. Mathematical model of a foam fractionator used in aquaculture. J. World Aqua. Soc., 26(3), 225-233   DOI   ScienceOn
10 Wong, C.H., M.M. Hossain and C.E. Davies. 2001. Per-formance of a continuous foam separation column as a function of process variables. Bioproc. Biosyst. Eng., 24, 73-81   DOI
11 Chen, S. 1994. Modeling surfactant removal in foam fraction-I. Theoretical development. Aqua. Eng., 13, 163-181   DOI   ScienceOn
12 Battacharjee, S., R. Kumar and K.S. Gandhi. 2001. Modeling of protein mixture separation in a batch foam column. Chem. Eng. Sci., 56, 5499-5510   DOI   ScienceOn
13 Brown, A.K., A. Kaul and J. Varley. 1999. Continuous foaming for protein recovery. Biotechnol. Bioeng., 62(3), 278-290   DOI   ScienceOn
14 Chai, J., V. Loha, A. Prokop and R.D. Tanner. 1998. Effect of bubble velocity and pH step changes on the foam fractionation of sporamin. J. Agric. Food Chem., 46, 2868-2872   DOI   ScienceOn
15 Chen, S., D. Stechy and R.F. Malone. 1996. Suspended solids control in recirculating aquaculture systems. In: Aquaculture Water Reuse System: Engineering Design and Management. Timmons, M.B. and T.M. Losordo eds., Elsevier, Amsterdam, pp. 61-100
16 Chen, S., M.B. Timmons, J.J. Bisgoni and D.J. Ane-shansley. 1993. Suspended solids removal by foam fractionation. Prog. Fish Cult., 55(2), 69-75   DOI   ScienceOn
17 Chen, S. 1991. Theoretical and experimental investigation of foam separation applied to aquaculture. Ph.D. Thesis, Cornell University, Ithaca, New York, USA., pp. 231
18 Lowry, O.H., N.J. Rosebrough, A.L. Farr and R.J. Randall. 1951. Protein measurement with the Folin phenol reagent. J. Biol. Chem., 193, 265-275
19 Cho, D. and H.N. Chang. 1999. Separation of oil con- taminants by surfactant-aided foam fractionation. Kor. J. Chem. Eng., 15, 445-448   DOI   ScienceOn
20 Kim, B.J. 2002. The foam separation process for the removal of contaminant in seawater. Ph.D. Thesis, Pukyong National University, Busan, Korea, pp. 13
21 Miller, G.E. and G.S. Libey. 1984. Evaluation of a trickling biofilter in a recirculating aquaculture system con- taining channel catfish. Aqua. Eng., 3, 39-57   DOI   ScienceOn