Akademik Veri Yönetim Sistemi
New Trends in Urban Drainage Modelling. Green Energy and Technology, Giorgio Mannina, Editör, Springer, Chamasha Books, Switzerland, Zug, ss.688-692, 2018
Rainwater management practices are implementations for improvement
of storm water quality and quantity. Implementation of these practices in
urban areas is vital because urbanization results in low percentage of permeable
soil and cuts off the ground water recharge. Over impermeable surfaces, rain
quickly turns into surface runoff and causes flooding. With urbanization, contaminants,
which accumulate over the surface, increase and therefore, the contamination
of the surface runoff also increases. A number of precautions and
control mechanisms are needed to remove these contaminants from the surface
runoff which are called as Low Impact Development (LID) Best Management
Practices (BMP). LID-BMPs serve for protection of the hydrologic cycle,
ecological balance, reduction of the flood risk and improvement of surface water
quality. In this study, first, a hydrological model for Avcılar Campus of Istanbul
University is developed by using Environmental Protection Agency Storm
Water Management Model (EPA SWMM). Then, the water quality model is
integrated into the hydrological model by defining various land use types such
as low-density residential, high-density residential, highway commercial and
highway, and pollution parameters such as total suspended solid (TSS) and lead
(Pb). Finally, several LID implementations such as green roof, permeable
pavement, bioretention, rain garden, and rain barrel, are defined into the model
according to the settlement type on the campus. The impact of the LID
implementations on the water quality and quantity are observed. Model results
show that the LID implementations greatly reduce the peak discharge. Moreover,
LID implementations also decrease pollutant concentrations in surface
runoff.