Seminar on April 12, 2019

Municipal Solid Waste Management with Cost Minimization and Emission Control Objectives
Melika Mohsenizadeh
Department of Industrial Engineering, METU

Abstract
Proper management of municipal solid waste (MSW) has been a crucial aspect of every society due to its social, environmental, and economic impacts. Operations research techniques have frequently focused on cost minimization objectives in locational planning of municipal solid waste management (MSWM) systems. However, transportation constitutes an integral part of this system producing a considerable amount of greenhouse gas (GHG) emissions. Therefore, sustainable management of this system with GHG emissions minimization considerations is necessary to preserve the resources and protect the environment. A bi-objective optimization model is proposed to minimize system cost and carbon dioxide emission resulting from transportation activities in locational planning of MSWM systems. The proposed model is applied to MSWM system of Ankara to introduce transfer stations (TSs). Two extensions of the current system are examined, namely, the extended and hybrid systems, where MSW is only transported through TSs in the former, while direct shipments are also allowed in the latter. For both extensions, it is observed that with no or little increase in system cost, considerable savings in carbon dioxideemission can be achieved. Moreover, simulation analyses are performed to investigate the impact of speed variations on resulting carbon dioxide emission and system cost.
Short Bio
Melika Mohsenizadeh is a research assistant and M.Sc. student at Middle East Technical University, Industrial Engineering Department. She received her B.Sc. degree in Industrial Engineering from Iran in 2015. Her research interests include sustainability issues in transportation and network design.

Venue
Friday, April 12, 2019 at 4.00 pm in IE03