Abstract
Chemical treatment of wastewater consists of three unit processes: coagulation/precipitation, flocculation and floc separation, the latter normally being carried out by sedimentation. The reaction step (coagulation/precipitation) is obviously of fundamental importance to the total treatment result, but the separation steps (flocculation and floc separation) have far greater importance from an economic point of view, since separation normally takes hours to complete while the reaction is completed within seconds.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Ødegaard, H.: Norwegian Experiences with Chemical Treatment of Raw Wastewater. Proc. Int. Conf. on: Wastewater Management in Coastal Areas, Montpellier, France, April, 1992
Ødegaard, H., Fettig, J., Ratnaweera, H.: Coagulation with Prepolymerized Metal Salts. In: Chemical Water and Wastewater Treatment, H.H. Hahn and R. Klute (eds.). Springer, Berlin Heidelberg New York 1990, pp. 189–220
Ødegaard, H.: Orthokinetic Flocculation of Phosphate Precipitates in a Multicompartment Reactor with Non-ideal Flow. Prog. Wat. Tech., 1979, Suppl. 1, pp. 61–88. Pergamon Press
Weholt, Ø.: Capacity Increase in Settling Units by the Use of Polymers. Proc. VAR 84-conference, H. Odegaard (ed.). TAPIR Publ., Trondheim, 1984 (in Norwegian)
Fettig, J., Ratnaweera, H. and Ødegaard, H.: Synthetic Organic Polymers as Primary Coagulants in Wastewater Treatment. Water Supply, Vol. 8, Jønkøping, 1990, pp. 19–26
Sagberg, P., Sæter, R. and Berge, A.B.: Increasing the Surface Load at a Direct-Precipitation Plant, VEAS, Norway. In: Chemical Water and Wastewater Treatment, H.H. Hahn and R. Klute (eds.). Springer, Berlin Heidelberg New York 1990, pp. 271–282
Klute, R.: Destabilization and Aggregation in Turbulent Pipe Flow. In: Chemical Water and Wastewater Treatment, H.H. Hahn and R, Klute (eds.). Springer, Berlin Heidelberg New York 1990, pp. 33–54
Skjelfoss, E.: Personal communication, March 1992
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1992 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Ødegaard, H., Grutle, S., Ratnaweera, H. (1992). An Analysis of Floc Separation Characteristics in Chemical Wastewater Treatment. In: Klute, R., Hahn, H. (eds) Chemical Water and Wastewater Treatment II. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-77827-8_7
Download citation
DOI: https://doi.org/10.1007/978-3-642-77827-8_7
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-77829-2
Online ISBN: 978-3-642-77827-8
eBook Packages: Springer Book Archive