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Settling Efficiency of Urban Particulate Matter Transported by Stormwater Runoff
Author(s) -
Carbone Marco,
Pendia,
Piro Patrizia
Publication year - 2015
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143015x14212658613839
Subject(s) - settling , particulates , stormwater , sedimentation , environmental science , surface runoff , decantation , suspended solids , particle size , particle size distribution , environmental engineering , sediment , hydrology (agriculture) , chemistry , geology , geotechnical engineering , ecology , chromatography , geomorphology , organic chemistry , wastewater , biology
The main purpose of control measures in urban areas is to retain particulate matter washed out by stormwater over impermeable surfaces. In stormwater control measures, particulate matter removal typically occurs via sedimentation. Settling column tests were performed to examine the settling efficiency of such units using monodisperse and heterodisperse particulate matter (for which the particle size distributions were measured and modelled by the cumulative gamma distribution). To investigate the dependence of settling efficiency from the particulate matter, a variant of the evolutionary polynomial regression (EPR), a Microsoft Excel function based on multi‐objective EPR technique (EPR‐MOGA), called EPR MOGA XL, was used as a data‐mining strategy. The results from this study have shown that settling efficiency is a function of the initial total suspended solids (TSS) concentration and of the median diameter ( d 50 index), obtained from the particle size distributions (PSDs) of the samples.