PERFORMANCE OF GREEN INFRASTRUCTURE IN THE FORM OF RAIN GARDEN AND POROUS PAVEMENT IN MANAGING HEAVY METAL PARAMETER OF URBAN RAINWATER RUNOFF (CASE STUDY: BANDUNG CITY)

• Main Author: Kamila, Nisaul
• Format: Theses
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/43921
• Institution: Institut Teknologi Bandung

Flood is one of the annual problems that always occurs in many big cities in Indonesia. This problem occurs due to reduced infiltration land (green open land) and replaced with increasingly mushrooming pavement. This results in rain runoff that is experiencing drainage to the drainage canal and empties into the sea. Developed countries such as the Netherlands and America have done a lot of research and implementation of green infrastructure by absorbing as much rain as possible through green infrastructure technology. The more advanced and dense an urban area such as Bandung, resulting in increased pollutants on the highway that overrun carried by the rain. Some research that has been done in the city of Bandung shows that the parameters of heavy metals in rain runoff reach relatively high numbers. aka this research is intended to determine the quality of rainwater runoff in Ir. H. Djuanda’s road Bandung on the parameters of heavy metals (Fe and Zn) that have been processed through green infrastructure cover technology in the form of rain garden and porous pavement with variations in rainfall intensity (low, medium and high). The output of this study is the land cover factors and rainfall intensity which have the most influence on the efficiency of processing heavy metal parameters and then compare them with the applicable regulations namely Government Regulation No. 82 of 2001. Research that has been carried out on a laboratory scale within a period of 15 days continuously shows that land cover and rain intensity affect the quality of the removal of heavy metals. The average removal efficiency for zinc (Zn) with rain garden cover in the type of light, moderate and heavy rain was 63%, 85% and 76%, respectively, for porous pavement land cover respectively - according to 58%, 63% and 60%. While the efficiency of processing iron (Fe) with rain garden land cover (rain garden) are 87%, 99% and 96%, for porous pavement land cover respectively 41%, 45% and 49% .