10 07 29 Master thesis Juliana Leon - e-Waste. This guide

List of Figures
Figure 1: Map of topography and location of Colombian major cities __________________________2
Figure 2: Internet use rate in 2009_____________________________________________________4
Figure 3: Historical sales and projected sales of new computer equipments in Colombia _________10
Figure 4: Percentage of PCs sold in Colombia by sector___________________________________11
Figure 5: Lifecycle of an electronic device with emphasis on the end-of-life phase. ______________15
Figure 6: Composition of the annual computer waste generated in Colombia (in units).___________19
Figure 7: Composition of the annual computer waste generated in Colombia (in weight). _________20
Figure 8: Average composition of computer waste in number of devices and weight percentages for
the years 2010 and 2020. __________________________________________________________20
Figure 9: Engines used for informal collection. Bogotá and Barranquilla (2009). ________________26
Figure 10: Impressions of Medellín’s “Plaza Minorista” ____________________________________27
Figure 11: Distribution of flows within the “Commercial refurbishment sub-system” ______________29
Figure 12: Manual dismantling of computers is often done next to IT repair shops or on the streets._30
Figure 13: Destinations of materials obtained after dismantling of computer waste ______________30
Figure 14: Schematic representation of the MFA system and boundary as defined in this study.____33
Figure 15: Material flows of total computer waste ________________________________________35
Figure 16: Treatment of computer waste in the three model scenarios, Colombia 2009. __________36
Figure 17: Analysis of collection pathways for computer waste in Colombia____________________37
Figure 18: Final destination of computer waste formal and informally treated in Colombia in 2009. __37
Figure 19: CRT-monitor abandoned in the "parque Simón Bolivar", after removal of the copper yoke 38
Figure 20: Material flow of computer CRT glass within the formal and informal sector in Colombia __39
Figure 21: Generated quantities and destination of monitors’ CRT glass in Colombia in 2009. _____40
Figure 22: Material flows of computer PWBs within the formal and informal sector in Colombia ____41
Figure 23: Generated quantities and final destination of PWBs according to the three scenarios. ___42
Figure 24: Material flows of plastics from computer waste _________________________________43
Figure 25: Total generation and final destination of plastics from computer waste. ______________44
Figure 26: Schematic flows in a future system including the IS in the collection step. ____________47
Figure 27: Schematic representations of flows in a future system with the inclusion of waste
cooperatives in the disassembly step. _________________________________________________51
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