Abstract:The focus of the presentation is to explore rectangular clarifiers and their design feature for various primary, secondary and tertiary wastewater applications. Typical hydraulic flow patterns and sludge removal patterns are examined. The concepts of relative physical dimensions and surface area are discussed. Also addressed are the importance of flow distribution to multiple clarifiers and the development of the proper inlet conditions. Different locations for sludge hoppers and sludge removal systems are given. Outlet conditions and the endwall effect are considered examined along with different types of effluent launders. The concepts of internal baffles and stacked clarifiers are explored. Recent case histories are presented for the design and retrofit of rectangular clarifiers, while recommendations are given for future research.
Document Type: Research Article
Publication date: January 1, 2005
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