Ring Diffuser to Dispense Antifoulants at Seawater Intakes
Publication: Journal of Hydraulic Engineering
Volume 143, Issue 9
Abstract
Traditional applications of chemicals to flows in water and wastewater plants are aimed at the flow itself, across its full cross section. However, at seawater intakes the need is to apply antifoulant chemicals not to the whole flow, but just around the inside wall of the intake pipe, as close to its entrance as possible. This desktop study combines the distribution hydraulics of multiport diffusers with an established design for a streamlined pipe entrance. The resulting design is of a ring diffuser incorporated within a streamlined entrance to a seawater intake pipe to provide uniform and well-positioned dosage of an antifoulant chemical stream all around the interior wall of the pipe, for effective and economical dosant application. Streamlining also minimizes head loss at the intake.
Get full access to this article
View all available purchase options and get full access to this article.
References
Baudish, P. (2015). “Design considerations for tunnelled seawater intakes.” Intakes and outfalls for seawater reverse-osmosis desalination facilities, T. Missimer, et al., eds., Springer, New York.
Chlorine Specialties, Inc. (2017). “Pipeline diffusers.” Burlingame, CA.
French, J. A. (2015). “Thorough dispersal of dosants in conduits.” J. Hydrol. Eng., 04015001.
Hunsaker, J. C., and Rightmire, B. G. (1947). Engineering applications of fluid mechanics, McGraw-Hill, New York.
Lakshmi, V. V., and Akondi, K. B. (2015). “Control of biofouling in marine environment—Past, present and future.” Int. J. Sci. Eng. Res., 6(2), 283–286.
Mortensen, T. C., et al. (2003). “Marine growth in cooling plant at drilling installation, Nigeria.”, Statoil ASA, Stavanger, Norway.
Nikuradse, J. (1933). Strömungsgesetze in rauhen Rohren, VDI Forschungsheft, Berlin.
Polman, H., et al. (2013). “Impact of biofouling in intake pipes on the hydraulics and efficiency of pumping capacity.” ⟨www.deswater.com⟩ (Jan. 2013).
Rouse, H., ed. (1950). Engineering hydraulics, Wiley, New York, 35.
Satpathy, K. K., Mohanty, A. K., Sahu, G., Biswas, S., Prasad, M. V. R., and Slvanayagam, M. (2010). “Biofouling and its control in seawater cooled power plant cooling water system—A review.” Nuclear power, P. Tsvetkov, ed., InTech, Rijeka, Croatia.
U.S. Department of the Interior. (1987). Design of small dams, 3rd Ed., Bureau of Reclamation, Government Printing Office, Washington, DC, 460.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 143 • Issue 9 • September 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Nov 18, 2016
Published online: May 31, 2017
Published in print: Sep 1, 2017
Discussion open until: Oct 31, 2017
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.