Skip to main content

Flocculation

  • Reference work entry
  • First Online:
Encyclopedia of Estuaries

Part of the book series: Encyclopedia of Earth Sciences Series ((EESS))

  • 131 Accesses

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)...

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 499.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Hardcover Book
USD 599.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

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.

    Google Scholar 

  • Alldredge, A. L., and Silver, M. W., 1988. Characteristics, dynamics, and significance of marine snow. Progress in Oceanography, 20(1), 41–82.

    Google Scholar 

  • 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.

    Google Scholar 

  • Day, J. W., Hall, C. A., Kemp, W. M., and Alejandro, Y., 1989. Estuarine Ecology. New York: Wiley-Interscience.

    Google Scholar 

  • Droppo, I. G., 2001. Rethinking what constitutes suspended sediment. Hydrological Processes, 15(9), 1551–1564.

    Google Scholar 

  • 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.

    Google Scholar 

  • 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.

    Google Scholar 

  • Eisma, D., 1986. Flocculation and deflocculation of suspended matter in estuaries. Netherlands Journal of Sea Research, 20(2/3), 183–199.

    Google Scholar 

  • 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.

    Google Scholar 

  • 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.

    Google Scholar 

  • Passow, U., 2002. Transparent exopolymer particles (TEP) in aquatic environments. Progress in Oceanography, 55(3–4), 287–333.

    Google Scholar 

  • 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.

    Google Scholar 

  • 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.

    Google Scholar 

  • 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.

    Google Scholar 

  • 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.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Dorothy Joyce D. Marquez .

Editor information

Editors and Affiliations

Rights and permissions

Reprints 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

Publish with us

Policies and ethics