Predicting physical clogging of modular paver equipped with filter media

Abstract

Porous pavements are simple to retrofit, good at improving the hydrology and quality of the water, but prone to clogging. There is little knowledge on the physical clogging processes through these systems, even though they play a significant role in the lifespan of porous pavements. This study’s objectives were to comprehend the primary physical mechanisms that control physical clogging and create a straightforward hexagonal modular (HM) model that can forecast physical congestion. A filtration system with a layered filter media granular activated carbon (GAC) and sand was installed. The clogging agent was found trapped only on the mesh because of the sizes of some of the material being larger than the size of mesh opening, while the voids of the media material were found to be not of a major effect in this respect. With the GAC and sand layers combined, the hydraulic conductivity was determined to be 0.097 cm/s and this k value can be considered low for the purpose.