Particle size distribution variance in untreated urban runoff and its implication on treatment selection

Water Research
Frances J ChartersAisling D O'Sullivan

Abstract

Understanding the particle size distribution (PSD) of sediment in urban runoff assists in the selection of appropriate treatment systems for sediment removal as systems vary in their ability to remove sediment across different particle size fractions. Variation in PSD in runoff from individual urban surfaces both during and across multiple rain events is not well understood and it may lead to performance uncertainty in treatment systems. Runoff PSDs in international literature were compiled to provide a comparative summary of PSDs from different urban surfaces. To further assess both intra-event and inter-event PSD variation, untreated runoff was collected from road, concrete roof, copper roof, and galvanized roof surfaces within an urban catchment exposed to the same rainfall conditions and analysed for PSD and total suspended solids (TSS). Road runoff had the highest TSS concentrations, while copper roofs had high initial TSS that reduced to very low levels under steady state conditions. Despite variation in TSS concentrations, the median particle diameter of the TSS was comparable across the surfaces. Intra-event variation was generally not significant, but substantial inter-event variation was observed, particularly for coa...Continue Reading

References

Jan 23, 2009·The Science of the Total Environment·Prasanna EgodawattaAshantha Goonetilleke
Jan 15, 2010·Environmental Pollution·Stephen MarshallAry Hoffmann
Nov 15, 2011·Journal of Environmental Monitoring : JEM·Daniel WickeAisling D O'Sullivan
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Citations

Jan 29, 2016·The Science of the Total Environment·Frances J ChartersAisling D O'Sullivan
May 3, 2016·The Science of the Total Environment·Hongtao ZhaoWenxia Xie
Jan 6, 2018·Environmental Science and Pollution Research International·Qian WangXiaochang C Wang
May 13, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·J FettigH Liebe
Mar 9, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·R HilligesT Marks
Nov 24, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Juan NavesManuel Regueiro-Picallo
Oct 27, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·D MorganL Gill
Mar 16, 2019·International Journal of Environmental Research·I M ScoullosD Brdjanovic
Jun 20, 2020·Environmental Science and Pollution Research International·Qian WangYuan Ge

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