Infiltration facilities are applied increasingly as effective BMPs to the urban stormwater control. The important functions of the facilities are surface flow reduction, contaminants elimination and aquifer recharge resulting from filtration, retention and infiltration of stormwater by porous media. A major obstacle in operating infiltration facilities is clogging. Filters of porous media in the facility are clogged by deposition of sediment over time. Clogging reduces infiltration rate and lifespan of the facility. Clogging, thus, needs to be considered as one of the important design factors in constructing infiltration facilities. In this study, 3 clogging models were chosen to simulate clogging, which developed in different disciplines, environmental and geotechnical engineering. Since the models were developed initially for fine media, applicability to coarse media interested in this study needed to be examined. To examine the applicability of models, analytical procedures of models were thoroughly reviewed. Parametric studies were also conducted to determine appropriate input parameters. Finally, the models represented relatively appropriate applicability to estimate clogging developed in an artificial infiltration as well as a real infiltration testing conditions. Although further studies are still needed for considerable aspects in input parameters and equations, the models could be suggested as effective analytical tools to estimate clogging developed in infiltration facilities of urban stormwater.
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