Build-Up/Wash-Off Monitoring and Assessment for Sustainable Management of First Flush in an Urban Area

Maria Di Modugno, Andrea Gioia, Angela Gorgoglione, Vito Iacobellis, Giovanni la Forgia, Alberto Piccinni, Ezio Ranieri
2015 Sustainability  
The characterization of stormwater runoff on urbanized surfaces by means of comparison between experimental data and simulations is a strict requirement for a sustainable management of urban sewer systems. A monitoring campaign was carried out within a residential area in Puglia (Southern Italy) in order to collect and evaluate quantity and quality data. A strong correlation was observed between COD (Chemical Oxygen Demand) and TSS (Total Suspended Solid) concentrations, whose values exceed
more » ... e values exceed water quality standards. TSS was used for calibration of Storm Water Management Model (SWMM) which was then validated with reference to the pollutograph's shape and the peak-time. The first flush phenomenon occurrence was also investigated by looking at the distribution of pollutant mass vs. volume in stormwater discharges, using the so-called "M(V) curves". Results show that on average the first 30% of that washed off carries 60% of TSS and provides important information for the design of efficient systems for first flush treatment.
doi:10.3390/su7055050 fatcat:vkhu3ymvnjbpllbn2vwszcc24m