THE TRANSFORMATION FROM LINEAR ECONOMY TO CIRCULAR ECONOMY FOR URBAN PLASTIC WASTE IN BANDUNG CITY USING SYSTEM DYNAMIC

• Main Author: Sitadewi, Dania
• Format: Dissertations
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/72867
• Institution: Institut Teknologi Bandung

The formal model of waste management in Indonesia solely focusses on the collection of waste from sources and transporting waste to landfill. Poor end-of-life plastic management contributes to the plastic ending up in the landfill and polluting the environment. It is essential to adopt a better system-wise economy through the creation of after-use economy or Circular Economy (CE). This research aims for economy model that can close the loop of plastic end- of-life by implementing Circular Strategies, therefore gradually transforming it from Linear Economy into a more Circular Economy. System dynamic are used for the model formulation using the case study in Bandung. The simulation result indicators for plastic Circular Economy should meet the following criteria: 1) the reduce of plastic waste going to the landfill; 2) the reduce of uncollected waste leaking into the environment; 3) the decreasing of plastic waste generated in the economy. Three scenarios depicting different regulation strengthening which will impact the adoption of circular strategies. Time boundaries of the model simulation in Vensim is set for five years. The simulation result confirms that as more circular strategies are implemented, less plastic went to the landfill and leaked into the environment. The scenario 2 and 3 with six implemented circular strategies evidently in the simulation shows a much slower growth rate of plastic going to the landfill and a reduced amount of plastic waste leaked into the environment. On the other hand, scenario 1 with only one applied circular strategy has an exponential growth of both plastic wastes going to the landfill and leaked into the environment. Simulation results also confirmed that as government regulation strengthens, there is an increase of circular strategies adoption. Compared to scenario where there is no regulation strengthening, thereby only one circular strategy is adopted: recycle (R8). The finding proves that CE necessitates a fundamental systemic change as failure to do so may result in the subversion and misunderstanding of the CE principal, which results in stakeholders only implementing minimum change to preserve the status-quo.