Design of Sustainable Electronic Waste Management System

Vatani, Zhaleh | 2021

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 54122 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Avami, Akram
  7. Abstract:
  8. The growing amounts of generation of electronic wastes (e-waste) and their increasing environmental impacts require a special optimal waste management strategy. Many different methods have been developed to managing e-waste. To make the best choices according to the conditions of each system, having an adequate knowledge of all methods and comparing them is the most important point. This research aims to design a system for managing e-waste by selecting mobile phones as an example of electronic waste and find the optimal condition of the system to increase economic benefits and reduce environmental impact. Recycling and landfill are selected as the main methods in this project. Four lines are presented based on the behavior of individuals in Iranian society at the Eol of mobile phones. In the recycling solution, two main components of the mobile phones (printed circuit board (PCB) and battery) may be recycled by the appropriate facilities. The mathematical model of the system is developed based on mass balance and economic and environmental constraints. Some parameters’ values collect by questionnaire, some by articles and valid databases, and some of them are collecting by life cycle assessment (LCA). The sensitivity of the mathematical model to a number of parameters is analyzed by the Monte Carlo method. According to the results obtained from the economic model, selecting the first type of recycling facilities for PCBs and batteries leads in the maximum net profit value (NPV) of the project equal to 433392.669 billion Rials. The higher operating cost of the first type of PCB recycling facilities compared to the second type, and its lower investment cost indicates the prominent role of investment costs in the project.Whiles the highest eco-efficiency occurs when the second type of PCB recycling facilities is selected. This is due to the lower environmental impact of the second type of PCB recycling facilities. Sensitivity analysis of selected parameters also shows the correlation and effectiveness of material price parameters and their weight composition; the most sensitive material must have both a reasonable price and an appropriate weight percentage
  9. Keywords:
  10. Life Cycle Assessment ; Mathematical Modeling ; Monte Carlo Method ; Electronic Waste ; Waste Management ; Eco-Efficiency

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