Advanced SearchSearch Tips
Studies on the Flocculation of Algae with Metal Ions
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Studies on the Flocculation of Algae with Metal Ions
Park, Yeong Jae; Lee, Sang Soo; Cho, Hye Ryun;
  PDF(new window)
Studies on the flocculation of algae using various metal ions were carried out by measurements of optical density(OD) and zeta potential. Cyanobacteria were used as algaes. Flocculation efficiencies of cyanobacteria by an addition of metal ions were determined from OD values, and the effect of metal ions was greater in the order of >>>>. Especially for trivalent metal ions, percentages of metal removed from cyanobacteria solutions on flocculation were measured, showing the same order as in flocculation efficiencies. Zeta potentials of cyanobacteria alone were measured with increasing the concentration, found to be all negative voltages, and were increased with increasing the concentration. The effect of pH on zeta potential of cyanobacteria solution was investigated. Below pH 5.5, the zeta potentials were steeply decreased with increasing pH, whereas in the range of they were almost constant () even with increasing pH. At a constant concentration of cyanobacteria (), an increase in concentration of metal ions caused an increase in zeta potential of cyanobacteria solution, showing that the effect was greater in the order of >>. At a constant metal concentration, zeta potentials were measured with increasing cyanobacteria concentration, showing that zeta potentials for , and ions were negligibly changed, whereas those of and ions were decreased. Moreover, the effect of ion on decreasing zeta potential was smaller than that of ion. ions showed quite a different behavior that with increasing cyanobacteria concentration the zeta potentials increased and decreased thereafter. Hydrolysis of ions caused a difficulty to investigate coagulation or flocculation of cyanobacteria by measurement of zeta potential.
Algae;Cyanobacteria;Coagulation;Flocculation;Zeta Potential;
 Cited by
Grima, E. M., Belarbi, E. H., Fernandez, F. G. A., Medina, A. R. and Chisti, Y., "Recovery of microalgal biomass and metabolites: process options and economics," Biotechnol. Adv., 20, 491-515(2003). crossref(new window)

Wyatt, N. B., Gloe, L. M., Brady, P. V., Hewson, J. C., Grillet, A. M., Hankins, M. G., Pohl, P. I., "Critical conditions for ferric chloride-induced flocculation of fresh water algae," Biotechnol. Bioeng., 109(2), 493-501(2012). crossref(new window)

Wu, Z., Zhu, Y., Huang, W., Zhang, C., Li, T., Zhang, Y. and Li, A., "Evaluation of flocculation induced pH increase for harvesting microalgae and reuse of flocculated medium," Bioresour. Technol., 110, 496-502(2012). crossref(new window)

Liu, J., Tao, Y., Wu, J., Zhu, Y., Gao, B., Tang, Y., Li, A., Zhang, C. and Zhang, Y., "Effective flocculation of target microalgae with self-flocculating microalgae induced by pH decrease," Bioresour. Technol., 167, 367-375(2014). crossref(new window)

Wan, C., Alam, M. A., Zhao, X. Q., Zhang, X. Y., Guo, S. L., Ho, S. H., Chang, J. S. and Bai, F. W., "Current progress and future prospect of microalgal biomass harvest using various flocculation technologies," Bioresour. Technol., 184, 251-257(2015). crossref(new window)

Uduman, N., Qi, Y., Danquah, M. K., Forde, G. M. and Hoadley, A., "Dewatering of microalgal cultures: A major bottleneck to algae-based fuels," Renew. Sustain. Energ., 2: 012701(2010). crossref(new window)

Ives, K. J., "The significance of surface electric charge on algae in water purification," J. Biochem. Microbiol. Technol. Eng., 1(1), 37-47(1959). crossref(new window)

Kwon, D. Y., Jung, C. K., Park, K. B., Lee, C. G. and Lee, J. W., "Flocculation Characteristics of Microalgae Using Chemical Flocculants," Korean Soc. Biotechnol. Bioeng. J., 26, 143-150(2011).

Kwon, D. Y., Jung, C. K., Lee, C. G. and Lee, J. W., "Flocculation Characteristics of Microalgae Through Combined Flocculants," Korean Soc. Biotechnol. Bioeng. J., 26, 443-452(2011).

Son, S. M., Jutidamrongphan, W. and Park, K. Y., "Addition of Coagulants for Phosphorus Removal from Combined Sewer Overflows (CSOs)," J. Korean Soc. Water and Waste., 26, 295-302(2012). crossref(new window)

Susana, G. F., Maria. C. I. and Humberto, J. S., "Effect of a cyanobacterial community on calcium carbonate precipitation in Puente del Inca," Acta Bot. Croat., 61(1), 1-9(2002).

Rita, K. H., Simon, A. P. and Bruce, J., "The impact of differing cell and algogenic organic matter (AOM) characteristics on the coagulation and flotation of algae," Water Res., 44, 3617-3624(2010). crossref(new window)

Lee, D. Y., Chung, S. J., Park, S. S. and Jung, B. O., "Flocculation Effect of Chitosan by Z-potential," J. Chitin. Chitosan, 19, 138-142(2014).

Ko, S. H., Paik, S. Y. R. and Ryu, J. N., "Comparison of Physicochemical Properties of Calcium Carbonate Nano-and Micro-Powders," Food Eng. Prog., 16, 134-138(2012).

Rippka R. and Cohen-Baziere G., "The cyanobacteriales: a legitimate order based on the type of strain Cyanobacterium stanieri?," Ann Microbiol. (Paris). 134B(1), 21-36(1983).

Golueke, C. G. and Oswald, W. J., "Harvesting and Processing Sewage-Grown Planktonic Algae," J. Water Pollut. Contr., 37, 471-498(1965).

Arthur, E. M and Robert, M. S., "Critical Stability Constants; Vol. 3 : Other Organic Ligands," 2nd ed., Plenum Press, New York, pp. 3-59(1989).

Robert, M. S. and Arthur, E. M, "Critical Stability Constants ; Vol. 4 : Inorganic Complexes," 2nd ed., Plenum Press, New York and London, pp. 1-12(1981).