Environmental Performance of the Stormpav Permeable Pavement Using the Stormwater Management Model (SWMM)

Urban stormwater runoff is contaminated with a variety of pollutants, including total suspended solids (TSS) and total phosphorus (TP), as a result of non-source pollution from transportation, residences, and businesses, as well as sediment from human activities and construction sites. These pollutants are expected to degrade the water quality in local rivers and streams, impairing the quality of marine life and contaminating drinking water supplies. This study evaluates the environmental performance of a permeable pavement system in an urban catchment using the stormwater management model (SWMM). Two pavement systems with different hydraulic designs were compared to reduce runoff, increment of groundwater storage and the environmental parameters assessments on total suspended solids (TSS) and Total Phosphorus (TP). The first system comprises a StormPav, which is the UNIMAS innovated green pavement with subsurface hollow cylindrical micro-detention pond storage of about 70% void content. The second system consists of porous concrete (PC) pavement assembled in a layered of coarse and fine particles to ensure water can infiltrate through, with about 40% void content. The environmental impact assessment was applied at Padungan Commercial Centre in the Kuching City of Malaysia. The case study simulated  low impact development (LID) sub-catchment in SWMM to obtain the runoff, infiltration and environmental quality performance. In the assessment, it was found that, for both pavement systems, higher storms at shorter duration resulted in higher reduction efficiency. The StormPav is more effective in reducing runoff while presenting a lower value for environmental assessments in removing TSS and TP compared to PC

Environmental Performance of the Stormpav Permeable Pavement Using the Stormwater Management Model (SWMM)

Urban stormwater runoff is contaminated with a variety of pollutants, including total suspended solids (TSS) and total phosphorus (TP), as a result of non-source pollution from transportation, residences, and businesses, as well as sediment from human activities and construction sites. These pollutants are expected to degrade the water quality in local rivers and streams, impairing the quality of marine life and contaminating drinking water supplies. This study evaluates the environmental performance of a permeable pavement system in an urban catchment using the stormwater management model (SWMM). Two pavement systems with different hydraulic designs were compared to reduce runoff, increment of groundwater storage and the environmental parameters assessments on total suspended solids (TSS) and Total Phosphorus (TP). The first system comprises a StormPav, which is the UNIMAS innovated green pavement with subsurface hollow cylindrical micro-detention pond storage of about 70% void content. The second system consists of porous concrete (PC) pavement assembled in a layered of coarse and fine particles to ensure water can infiltrate through, with about 40% void content. The environmental impact assessment was applied at Padungan Commercial Centre in the Kuching City of Malaysia. The case study simulated  low impact development (LID) sub-catchment in SWMM to obtain the runoff, infiltration and environmental quality performance. In the assessment, it was found that, for both pavement systems, higher storms at shorter duration resulted in higher reduction efficiency. The StormPav is more effective in reducing runoff while presenting a lower value for environmental assessments in removing TSS and TP compared to PC

Environmental Aspects of StormPav Green Pavement Using SWMM at Padungan Commercial Center

This study aims to investigate the effect of permeable pavements water quality comprises of StormPav, the new innovated permeable pavement by UNIMAS researcher and Porous Concrete (PC) at Padungan Commercial Centre using Stormwater Management Model (SWMM). Urban stormwater runoff is extremely polluted with various pollutants such as total suspended solids (TSS) and Total Phosphorus (TP). Therefore, permeable pavements (PP) is proposed to be implemented in the study area. The performance of the PP system of StormPav and PC are investigated using Low Impact Development (LID) control in SWMM. The exponential functions and parameters of TSS and TP loads generated from the commercial center is obtained from past studies. The results found that the StormPav shows significance results in reducing runoff during high storm event about 25% to 37% compared to PC about 20% to 29% respectively. While, PC shows better performance at removing runoff for small storm events with runoff reduction about 56% to 59% compared to StormPav at about 44% to 49%. The stormwater quality entering the groundwater are improve using the PP system. From the simulation, PC performed better than StormPav at reducing both pollutants for high and low rainfall intensity with TSS and TP removal about 99% and 98% respectively. Besides, StormPav removed 99% of TSS and 87% of TP during low rainfall intensity, but about 63% and 45% respectively of TSS and TP during high rainfall intensity. The finding indicates that StormPav can be used for stormwater management to reduce groundwater pollution