Design of Sanitary Landfill for Open Dumping Site Sukawinatan, Palembang

Sukawinatan landfill has been operating since 1994 but still uses an open dumping system. In the absence of good control in the landfill area, it has caused adverse impacts on the environment including landslides of garbage, pollution of water bodies for agricultural water sources and community drinking water sources, and flooding due to blockage of river flow by piles of garbage. This study aims to design a sanitary landfill for open dumping site Sukawinatan in accordance with SNI 19-2454-2002 to avoid negative impacts. In 5 Ha of land for the design, 744.68 m of leachate pipe is needed using HDPE material with a diameter of 300 mm, a 150 mm gas pipe with a length of 1331.5 m equipped with a 1.5 cm perforation hole. In addition, the design also included leachate treatment installations (collection wells, anaerobic ponds, facultative ponds, maturation ponds) with a discharge of 442.26 m3/hour, monitoring wells (58.88 m3), drainage channels, and geomembrane layers. The estimated investment cost is IDR 8.5billions and the operational cost is 267 millions/month. This sanitary landfill design can accommodate Palembang city waste for 27 years, until 2049.