Synonyms
Aggregation; Coagulation
Definition
Flocculation is a process of contact and adhesion whereby dispersed particles are held together by weak physical interactions.
Introduction
Flocculation has been widely used in water and wastewater treatment applications mainly for clarification and reduction of suspended solids, respectively. Recently, it has also been used as a cost-effective method for harvesting microalgae for biomass for production of food, feed, fuel, or chemicals (Vandamme et al., 2013). Aside from these applications, in situ flocculation has also been studied for years to understand sediment transport in different aquatic environments. In this regard, Eisma (1986) defined flocculation as a natural process by which suspended particles are brought together into larger units called flocs.
Flocculation or floc formation depends on the physical collision between suspended matter and their adhesion (Alldredge and Jackson, 1995; Hansen et al., 1995). Droppo (2001)...
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Bibliography
Alldredge, A. L., and Jackson, G. A., 1995. Aggregation in marine systems – preface. Deep-Sea Research Part II-Topical Studies in Oceanography, 42(1), 1–7.
Alldredge, A. L., and Silver, M. W., 1988. Characteristics, dynamics, and significance of marine snow. Progress in Oceanography, 20(1), 41–82.
Chen, M. S., Wartel, S., Van Eck, B., and Van Maldegem, D., 2005. Suspended matter in the Scheldt estuary. Hydrobiologia, 540(1–3), 79–104.
Day, J. W., Hall, C. A., Kemp, W. M., and Alejandro, Y., 1989. Estuarine Ecology. New York: Wiley-Interscience.
Droppo, I. G., 2001. Rethinking what constitutes suspended sediment. Hydrological Processes, 15(9), 1551–1564.
Droppo, I. G., Leppard, G. G., Flannigan, D. T., and Liss, S. N., 1997. The freshwater floc: a functional relationship of water and organic and inorganic floc constituents affecting suspended sediment properties. Water Air and Soil Pollution, 99(1–4), 43–53.
Droppo, I. G., Leppard, G. G., Liss, S. N., and Milligan, T. G. (eds.), 2005. Flocculation in Natural and Engineered Environmental Systems. Boca Raton, Florida: CRC Press.
Eisma, D., 1986. Flocculation and deflocculation of suspended matter in estuaries. Netherlands Journal of Sea Research, 20(2/3), 183–199.
Hansen, J. L. S., Timm, U., and Kiørboe, T., 1995. Adaptive significance of phytoplankton stickiness with emphasis on the diatom Skeletonema costatum. Marine Biology, 123(4), 667–676.
IUPAC, 1997. Compendium of Chemical Terminology, 2nd edn. (the “Gold Book”). Compiled by McNaught, A. D., and Wilkinson, A. Oxford: Blackwell Scientific Publications. XML on-line corrected version: http://goldbook.iupac.org (2006) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook.
McCave, I. N., 1984. Size spectra and aggregation of suspended particles in the deep ocean. Deep-Sea Research Part a-Oceanographic Research Papers, 31(4), 329–352.
Passow, U., 2002. Transparent exopolymer particles (TEP) in aquatic environments. Progress in Oceanography, 55(3–4), 287–333.
Simon, M., Grossart, H. P., Schweitzer, B., and Ploug, H., 2002. Microbial ecology of organic aggregates in aquatic ecosystems. Aquatic Microbial Ecology, 28(2), 175–211.
Vandamme, D., Foubert, I., and Muylaert, K., 2013. Flocculation as a low-cost method for harvesting microalgae for bulk biomass production. Trends in Biotechnology, 31(4), 233–239.
Verney, R., Lafite, R., and Brun-Cottan, J. C., 2009. Flocculation potential of estuarine particles: the importance of environmental factors and of the spatial and seasonal variability of suspended particulate matter. Estuaries and Coasts, 32(4), 678–693.
Wilén, B.-M., Lund Nielsen, J., Keiding, K., and Nielsen, P. H., 2000. Influence of microbial activity on the stability of activated sludge flocs. Colloids and Surfaces B: Biointerfaces, 18(2), 145–156.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 Springer Science+Business Media Dordrecht
About this entry
Cite this entry
Marquez, D.J.D. (2016). Flocculation. In: Kennish, M.J. (eds) Encyclopedia of Estuaries. Encyclopedia of Earth Sciences Series. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-8801-4_214
Download citation
DOI: https://doi.org/10.1007/978-94-017-8801-4_214
Published:
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-017-8800-7
Online ISBN: 978-94-017-8801-4
eBook Packages: Earth and Environmental ScienceReference Module Physical and Materials ScienceReference Module Earth and Environmental Sciences