2019 International Conference on Computer Communication and Informatics (ICCCI -2019), Jan. 23-25, 2019, Coimbatore, INDIA Comparative study on WtE technologies in perspective of a developing country S.M. Tahsin Labib Sohan Ul Alam Rubel Ahmed Department of Electrical & Electronics Engineering Department of Electrical & Electronics Engineering Department of Electrical & Electronics Engineering International Islamic University Chittagong International Islamic University Chittagong International Islamic University Chittagong Chittagong, Bangladesh Chittagong, Bangladesh Chittagong, Bangladesh tahsinlabib2@gmail.com Sohanulalam1996@gmail.com jxrubelahmed@gmail.com Mohammad Farshid Arif Billah Md.Afzal Hossain Department of Computer Science & Engineering Department of Electrical & Electronics Engineering Department of Electrical & Electronics Engineering International Islamic University Chittagong International Islamic University Chittagong International Islamic University Chittagong Chittagong, Bangladesh Chittagong, Bangladesh Chittagong, Bangladesh mdfar42@gamil.com arifbillah0468@gmail.com afzalbd5555@gmail.com Abstract— Currently, energy security and environmental cleanliness is becoming an important concern to the civilized world due to increasing population and global warming, which motiving the researcher towards finding the alternative energy resources instead of traditional energy source for power generation. Now, Waste-to- Energy technology (WtE) has earned a great deal of attention in developed countries for effective waste management system. It can also be used to address the energy problems in developing countries like Bangladesh. Even though there are several methods of WtE technologies but still finding a suitable technology is a bargaining question. Therefore, this study deals with the determination of more suitable and effective method among WtE technologies in perspective of our country economy, energy efficiency, and environmental aspects that can sustain with our future energy demand. From our study, we have determined Gasification-based WtE technology as the more suitable method because of its operation flexibility, lower cost, higher efficiency, less GHG emissions, and simplicity in design. Thus, the energy produced in this method can contribute significantly to reduce our electricity shortage with effective waste management system and can be a building-block of a green-smart city. Keywords— Energy security, Environmental cleanliness, WtE technology, Bangladesh, Gasification, Green-smart city. I. INTRODUCTION According to the International Energy Agency [1], about 22% of global population lacks of energy access. Also, an average of 34% people of developing countries lack of waste collection service and the waste generation rate is expected to double by 2025 [2]. Waste generation in big quantities and lack of appropriate waste management system is one of the most important issue at the present world. Waste-to-Energy technology (WtE) is an emerging technology of the currently developed country. WtE technology can also be beneficial to the developing countries like Bangladesh. We know that waste everywhere need urgent disposal which requires manpower, cost, and proper space; so waste management is a challenge for the government and city authority. Many developed countries such as England, Middle East, USA etc. have already adopted WtE technology for waste management and to produce significant energy from waste [3-4]. Waste-to-Energy (WtE) technologies consist of any waste treatment process that creates energy in the form of electricity, heat or transport fuels from a waste source [5]. WtE technology produces energy using waste as a feedstock. Waste is generated at a large extent in our day to day life. We just throw away this wastes and the governing authority collects them. Instead, if these wastes are utilized using WtE technology then a large amount of energy can be generated. These generated energies can contribute to the growing power demand in a highly dense populated developing country like Bangladesh where waste generation rate is very high. 978-1-5386-8260-9/19/$31.00 ©2019 IEEE