Pollution Reduction in Receivers: Storm-Water Tanks

Urban runoff discharges in receiving water are a significant source of pollution. Storm-water tanks are one of the most effective facilities used for reducing the impact of first-flush pollution. Nevertheless, because the system performance depends on many parameters, design criteria for storm-water...

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Bibliographic Details
Published in:Journal of urban planning and development 2011-03, Vol.137 (1), p.29-38
Main Authors: Martino, Giuseppe De, De Paola, Francesco, Fontana, Nicola, Marini, Gustavo, Ranucci, Antonio
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Computation methods. Tables. Charts
Computer simulation
Exact sciences and technology
Mathematical models
Pollution abatement
Rainfall
Reduction
Sewerage. Sewer construction
Storage tanks
Structural analysis. Stresses
Tanks
TECHNICAL PAPERS
Water pollution
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Summary:Urban runoff discharges in receiving water are a significant source of pollution. Storm-water tanks are one of the most effective facilities used for reducing the impact of first-flush pollution. Nevertheless, because the system performance depends on many parameters, design criteria for storm-water tanks are not completely consolidated in the literature. To assess the influence of the rainfall regime on the system performance, extensive numerical simulations from 45 rain gauges in Campania, Italy, were calculated. A typical Italian urban catchment was considered in simulations. Hydrographs and pollutographs were generated to analyze the operation of different sewer and tank configurations. All simulations showed a negligible influence of the rainfall regime on the phenomenon, thus suggesting a simplified approach to estimate the average pollution reduction by using storm-water tanks. The analysis shows good agreement between the values estimated from the proposed approach and the results provided by continuous simulations.
ISSN:0733-9488
1943-5444
DOI:10.1061/(ASCE)UP.1943-5444.0000037