Page 12 - Implementation of ITU-T international standards for sustainable management of waste electrical and electronic equipment: The path to a circular economy in Costa Rica

Figure 28 - WEEE collection mechanisms implemented by surveyed WEEE
managers ....................................................................................................................................34
Figure 29 - Main obstacles to developing WEEE management according to
the surveyed WEEE manager ..................................................................................................35
Figure 30 - Actions that can be implemented to facilitate WEEE management
according to surveyed managers ...........................................................................................35
Figure 31 – General system for the analysis of AEE and RAEE flows in Costa Rica .........37
Figure 32 - Identification code description of material flows in the diagrams .................38
Figure 33 - Sales distribution of new EEE by importing trading companies ....................39
Figure 34 - Sales distribution of used EEE by importing trading companies ..................39

Figure 35 – Tracers’ unitary weights in kilograms per unit ..................................................40
Figure 36 - Average unitary weight of tracers by importer group in kilogram
per unit ........................................................................................................................................42

Figure 37 - Representativeness of importers samples in the surveys ................................43
Figure 38 - WEEE cumulative curves per tracer ....................................................................45
Figure 39 - Comparison of total EEE imports concerning tracer imports in 2020 ..........46
Figure 40 - Tracer imports concerning total EEE imports by importing group ...............47
Figure 41 - Distribution of total EEE imports (in mass) by importing group in 2020 ......47
Figure 42 - Distribution of tracer imports (in mass) by importing group in 2020 ...........48
Figure 43 - Imported units of tracers by importing group in 2020‎ ..................................48

Figure 44 - Distribution of tracer’s imports (in units) by importing group ........................49
Figure 45 - Imports of EEE tracers and managed WEEE in the study sample for
the year 2020. Flows in tonnes ................................................................................................50
Figure 46 - Imports of tracer EEE and managed WEEE in the study sample for
the year 2020. Flows in units....................................................................................................51

Figure 47 - Ratio of managed EEE to imported EEE in 2020 .............................................52
Figure 48 - Flows of known EEE tracers’ tonnes in Costa Rica in 2020 .............................53
Figure 49 - Material flows diagrams of the eleven tracers selected in the Costa
Rica Case Study with information from 2020 for new EEE ..................................................54
Figure 50 - Material flows diagrams of the eleven tracers selected in the Costa
Rica Case Study with ‎information from 2020 for used EEE...............................................55
Figure 51. Estimated inventory of EEE in use in households ..............................................56
Figure 52 - Projected WEEE generation in the period 2020–2030 (in tonnes) ................57
Figure 53 - Ratio between generated WEEE (estimation) and imported EEE in
2020 .............................................................................................................................................57
Figure 54 - Ratio of managed WEEE to generated WEEE (estimated by ITU)
and to imported EEE in 2020 ..................................................................................................58
Figure 55 – Final destination categories ................................................................................58
Figure 56 - Destination flows of WEEE coarse fractions processed and/or
managed in Costa Rica in 2020, in tonnes per year .............................................................59
Figure 57 - Destination flows of WEEE fine fractions processed and/or
managed in Costa Rica in 2020 ..............................................................................................60

x