Municipal solid waste to energy : a case study of Chittagong, Bangladesh | |
| Author | Alam, Samina |
| Call Number | AIT Thesis no.ET-21-01 |
| Subject(s) | Biomass conversion Solid waste management--Bangladesh--Chittagong Refuse and refuse disposal--Bangladesh--Chittagong--Case studies |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Energy |
| Publisher | Asian Institute of Technology |
| Abstract | Waste management in Chittagong has become a major problem due to the rapid growth of municipal solid waste and the lack of available land for waste disposal. Chittagong City Corporation is considering constructing a Waste to Energy plant to help alleviate the problem. However, since there are so many Waste to Energy technological options available on the market, they are unsure which one to choose. Furthermore, no study has yet been conducted to rank appropriate Waste to Energy technologies in the context of Chittagong, taking into account technology, economy, environmental, and social factors using stakeholder perception-based participatory approaches. The aim of the study was to identify suitable Waste to Energy Option in the context of Chittagong. Anaerobic digestion, Gasification, Incineration, and Landfill gas recovery were considered as possible alternatives whereas, technology, economy, environment, and social factors have been considered as necessary criteria to evaluate these technologies utilizing AHP analysis and rank these technologies using stakeholders’ perceptions. Snowball sampling was applied to identify the potential stakeholders. From the analysis it was found that Anaerobic digestion ranked first getting 38% of overall weight. The second preferred technology is Landfill gas recovery which obtained 27%. Gasification and Incineration stood third and fourth respectively (21% and 14%). After that, sensitivity analysis is conducted which revealed that the decision is only sensitive to economy. If economy is given more than 38% priority, Landfill gas recovery would become the most preferred choice. The second objective of the study was to carry out the techno-financial and environmental analysis of the selected technology. This study proposed medium large fixed dome digester (547m3 ), as it can be designed, constructed and maintained by local expertise. From the proposed design, around 536 m3 biogas can be produced which can run a 50kW gas engine. Besides, around 44 families can be provided with biogas supply for cooking purpose. |
| Year | 2021 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Salam, P. Abdul |
| Examination Committee(s) | Visvanathan, Chettiyappan;Singh, Jai Govind |
| Scholarship Donor(s) | ADB-JSP Scholarship |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2021 |