3.2 Unit Process Performance Calculation
3.2.1 Technical Performances
The technical performance indicators are oriented towards the capacity of the
pathway to recycle the waste, so each unit process is described by three indicators.
• Recycling rate
• Recovery rate
• Landfill rate
The calculation of these rates is made according to the standard [22].
3.2.2 Economic Performances
For the economic dataset, data is easily accessible through the information provided
by manufacturers and recyclers feedback. The Life Cycle Cost (LCC) analysis is
used to determine the economic performance of each unit process. The LCC
methodology used to consider both the costs of each system in addition to the profit
from the sales of the sorted materials. However we do not include the costs of the
environmental impact [23]. The economic performance is described by using three
results:
• Initial investment costs
• Operating costs (cost per ton)
• Profit from recycled materials sales
3.2.3 Environmental Performances
Inventory data characterising recycling processes are rare and usually not available
in the most currently used generic Life Cycle Inventory database (ELCD, Gabi,
Ecoinvent). Specific inventory data remain to be collected and assessed to build
reliable and representative datasets. Our team has started to build an environmental
database for recycling processes. The results of environmental performance
assessment are given through one inventory indicator and two environmental
impacts indicators (using ILCD methodology [24]):
• Total energy consumption
• Climate change
• Non-renewable resource depletion
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G. Grimaud et al.
3.2.1 Technical Performances
The technical performance indicators are oriented towards the capacity of the
pathway to recycle the waste, so each unit process is described by three indicators.
• Recycling rate
• Recovery rate
• Landfill rate
The calculation of these rates is made according to the standard [22].
3.2.2 Economic Performances
For the economic dataset, data is easily accessible through the information provided
by manufacturers and recyclers feedback. The Life Cycle Cost (LCC) analysis is
used to determine the economic performance of each unit process. The LCC
methodology used to consider both the costs of each system in addition to the profit
from the sales of the sorted materials. However we do not include the costs of the
environmental impact [23]. The economic performance is described by using three
results:
• Initial investment costs
• Operating costs (cost per ton)
• Profit from recycled materials sales
3.2.3 Environmental Performances
Inventory data characterising recycling processes are rare and usually not available
in the most currently used generic Life Cycle Inventory database (ELCD, Gabi,
Ecoinvent). Specific inventory data remain to be collected and assessed to build
reliable and representative datasets. Our team has started to build an environmental
database for recycling processes. The results of environmental performance
assessment are given through one inventory indicator and two environmental
impacts indicators (using ILCD methodology [24]):
• Total energy consumption
• Climate change
• Non-renewable resource depletion
16
G. Grimaud et al.