Bioflocculation

Bioflocculation The clumping together of fine, dispersed organic particles by the action of certain bacteria and algae. 

Busch, P. L., and W. Stumm (1968), "Chemical Interactions in the Aggregation of Bacteria Bioflocculation in Waste Treatment", Environ. Sci. Technol. 2, 49-53. 

Bioflocculation Flocculation caused by hving organisms (e.g., the formation of large clumps of phytoplankton during a bloom). 

Smith, R.W. Schneider, I.A. Misra, M. (1994) Flocculation of fine hematite suspensions with conventional and bioflocculants. Abstracts 8 Int. Conf Colloid Surf. Chem. Adelaide... 

V. Urbain, J.C. Block, J. Manem, Bioflocculation in activated sludge an analytical approach, Water Res. 27 (1993) 829-838. 

Bnulsion stabilizers, bioflocculants Unique thickening, gelling, stabilizing, suspending, coagulating, film-forming, and water retention properties... 

Cyanobacteria are considered by some to be a promising source of exocellular polysaccharides (de Philippis et al., 2001). Certain strains of cyanobacteria are known to contain large amounts of released exocellular polysaccharides, which consist of a relatively large number of monosaccharides and display unique, unusual properties (de Philippis et al., 2001). Cyanobacterial polysaccharides have demonstrated the potential to be used for the stabilization of emulsions or as bioflocculants however, further research is necessary for commercial development. Polysaccharides produced by Cyanospira capsu-lata, one Nostoc strain, and two Cyanothece strains were reported to have viscosity values comparable to or above those for aqueous solutions of xanthan gum under similar concentrations (de Philippis et al, 2001). 

D. C. Sobeck and M. J. Higgins. Examination of three theories for mechanisms of cation-induced bioflocculation. Water Research, 36(3) 527-538, 2002. 

Bioflocculants are also being explored, including the introduction of bacteria [206] and filamentous fungi [207, 208] to induce algal aggregation. Some algal... 

CalPoly) yields utilize bioflocculation and sedimentation followed by further concentration by centrifugation and examine... 

Cosa S, Mabin LV, Olaniran OA, Okoh OO, Bernard K, Deyzel S, et al. Bioflocculant production by VirgiBacillus sp. Rob isolated from the bottom sediment of Algoa Bay in the Eastern Cape, South Africa. Molecules 2011 16 2431—42. 

Mabin VL, Cosa S, Nwodo UU, Okoh Al. Studies on bioflocculant production by Arthrobacter sp. Raats, a freshvKiter bacteria isolated fromTyume River South Africa. In J Mol Sci 2012 13 1054-65. 

Liao, B.Q., Allen, D.G., Droppo, I.G., Leppard, G.G. Liss, S.N. (2001) Surface properties of sludge and their role in bioflocculation and settleability. Water Research, 35, 339-350. 

Kurane, R. and Nohata, Y. (1991) Microbial flocculation of waste liquids and oil emulsion by a bioflocculant from Alcaligenes latus. Agric. Biol. Chem., 55, 1127-1129. 

In recent years, many bioflocculant-producing microorganisms including bacteria, fungi and actinomyces have been reported to produce extracellular polymeric substances, such as... 

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