An investigation of the transport of solids in combined sewers during both dry weather flow (DWF) periods and storms is described. The study was based on data obtained from a number of sites in the combined sewer system of Dundee, Scotland. The relationship between hydraulic conditions in a combined sewer and the transport of solids in suspension was examined. The aim was to arrive at a methodology by which an appropriate model could be selected or developed which would predict solids transport rates given information on hydraulic conditions. It was found that for individual sites, site-specific regression equations could be developed separately for dry weather and storm conditions. A non-site-specific regression equation was also developed, which was found to be preferable to the site specific equations, in terms of accuracy and ease of use. More important, however, were the fundamental procedures (ie the methodology) developed by which the model type was in each case selected and subsequently developed.
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Research Article|
April 01 1996
Empirical equations for solids transport in combined sewers
Brian P. Coghlan;
Brian P. Coghlan
*School of Construction and Environment, University of Abertay Dundee, Bell Street, Dundee, UK
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Richard M. Ashley;
Richard M. Ashley
**Wastewater Technology Centre, University of Abertay Dundee, Bell Street, Dundee, UK
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George M. Smith
George M. Smith
***Scottish Institute for Wood Technology, University of Abertay Dundee, Bell Street, Dundee, UK
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Water Sci Technol (1996) 33 (9): 77–84.
Citation
Brian P. Coghlan, Richard M. Ashley, George M. Smith; Empirical equations for solids transport in combined sewers. Water Sci Technol 1 April 1996; 33 (9): 77–84. doi: https://doi.org/10.2166/wst.1996.0181
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