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Permanent link (DOI): https://doi.org/10.7939/R3000076W

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Development of a Decision Making Framework for Solid Waste Management Using GIS-based Site Selection and an Economic Comparison Open Access

Descriptions

Other title
Subject/Keyword
WTE
MSW
GIS
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Khan, Md. Mohib-Ul-Haque
Supervisor and department
Kumar, Amit (Mechanical Engineering)
Examining committee member and department
Gupta, Rajendra (Chemical and Materials Engineering)
Kumar, Amit (Mechanical Engineering)
Tian, Zhigang (Will) (Mechanical Engineering)
Department
Department of Mechanical Engineering
Specialization
Engineering Management
Date accepted
2015-09-04T10:04:56Z
Graduation date
2015-11
Degree
Master of Science
Degree level
Master's
Abstract
The management of municipal solid waste (MSW) is one of the major challenging issues for various global jurisdictions. MSW generation and disposal rates are increasing worldwide along with increased population and urbanization. Limited landfill capacity and long-term environmental issues associated with landfilling (e.g., landfill gas emission and leachate generation) have led to a need to consider sustainable alternatives for MSW use and disposal. Two of the most important issues associated with waste conversion facility building are optimal site location and economic feasibility. The overall objective of this research is to: (1) develop a methodology for waste conversion facility site selection and (2) create a generic decision-making model that can be used by county planners to make waste conversion facility decisions incorporating economic and social parameters. Siting a solid waste-to-energy (WTE) facility requires an assessment of solid waste availability as well as compliance with environmental, social, and economic factors. There are some important parameters (e.g., location and amount of available waste, soil type, etc.) that should be considered when siting WTE facilities. These parameters do not have equal weight. In the first part of this study, six different waste management scenarios were studied with three different weights used. The analytic hierarchy process (AHP) was used to assign weights to the parameters. Both waste availability amount-dependent and waste availability amount-independent studies were carried out. The purpose of the second part of this study is to develop a framework to help compare the costs of different waste management scenarios. A user-friendly model was developed that allows the user to input different waste availability details and other variables (i.e., cost of biofuel, cost of electricity, etc.). Ten waste management scenarios were compared based on either gate fee or internal rate of return. These scenarios are: (i) gasification (producing biofuel), (ii) gasification (producing electricity), (iii) anaerobic digestion, (iv) composting, (v) new landfill, (vi) gasification (producing biofuel) integrated with anaerobic digestion, (vii) gasification (producing electricity) integrated with anaerobic digestion, (viii) gasification (producing biofuel) integrated with composting, and (ix) gasification (producing electricity) integrated with composting. A sensitivity analysis was conducted to assess the impact of changes in the values of different parameters. For this research, a case study of Parkland County was conducted. For this case study, at 10% IRR and a waste availability of 25,000-50,000 tonne/year, composting is the cheapest solution (77 -86 $/tonne gate fee), and for a waste availability of 50,000-150,000 tonne/year, a gasification (producing electricity) facility integrated with composting is the cheapest solution with a gate fee of 42 -77 $/tonne. Moreover, as incentives (from government or other parties) increase for waste-to-energy scenarios, these scenarios become cheaper. As capital investment incentives increase, the facility owner’s capital investment decreases.
Language
English
DOI
doi:10.7939/R3000076W
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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