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The design of clarifiers varies from country to country. The objective of this paper is outline some non-US design practices but does not pretend to be exhaustive. The International Association on Water Quality's Scientific and Technical Report No. 6 (STR No. 6)—Secondary Settling Tanks: Theory, Modelling, Design and Operation—is an excellent summary of secondary settling tank design (Ekama et al., 1997). Therefore, the purpose of this chapter is to augment, not duplicate, the efforts of the STR No. 6 authors. Apart from site-specific innovations, design practice worldwide is similar, with differences being in emphasis rather than philosophy. Most of the regional differences between settling tanks are either the design method, the equipment fitted into the tanks, including sludge removal and inlet arrangements, or a preference for rectangular or circular tank designs

Document Type: Research Article


Publication date: January 1, 2005

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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