3 Results
3.1 Step by Step Evaluation Methodology
Our assessment methodology has been developed to provide a coarse result in early
design phases and to promote sustainable solutions. The methodology can be
divided into several key steps. First, the general framework is built based on the
customer needs and with the waste type specifications. This step allows to determine the specific constraints, delays and costs of the project in order to determine
the initial specifications for the recycling pathway. In the continuity, the customer
provides its main orientations for the recycling process purpose. The customer
defines the purpose and objectives for the recycling pathway. Next, the engineering
team validate or not the main orientation of the recycling chain. From this orientation, the engineering team starts working on the recycling pathway proposal. The
aim is to provide treatment synoptic definition, selection of the main steps and the
choice of technological bricks.
According to the recycling chain synoptic, for each step of the recycling pathway, MTB’s Sales Team needs to select the appropriate technology and thanks to
the expertise from MTB’s Engineering Team the operating variables are selected. It
is from this point that the database makes it possible to calculate the unit performances. This calculation is made according to the general settings, the specific
information flow and the variables. At the end, a synthetic evaluation of the global
process and unit steps is provided to allow discussion.
Table 1 Variables and characterization for recycling each unit process family
Type
Operational details
Characterization
Shredding
Type of technology (constraint)
Cost of purchase
Material losses
Capacity
Reduction rate/fineness
Separation
Type of technology (constraint)
Cost of purchase
Material losses
Capacity
Effectiveness/separation quality
Transport
Type of technology (constraint)
Environmental characterization
Cost of purchase
Material losses
Capacity
Rate flow
Elementary flow
Composition flow
Physical properties
Input or output
Market price
Purity
Sustainability Performance Evaluation …
15
3.1 Step by Step Evaluation Methodology
Our assessment methodology has been developed to provide a coarse result in early
design phases and to promote sustainable solutions. The methodology can be
divided into several key steps. First, the general framework is built based on the
customer needs and with the waste type specifications. This step allows to determine the specific constraints, delays and costs of the project in order to determine
the initial specifications for the recycling pathway. In the continuity, the customer
provides its main orientations for the recycling process purpose. The customer
defines the purpose and objectives for the recycling pathway. Next, the engineering
team validate or not the main orientation of the recycling chain. From this orientation, the engineering team starts working on the recycling pathway proposal. The
aim is to provide treatment synoptic definition, selection of the main steps and the
choice of technological bricks.
According to the recycling chain synoptic, for each step of the recycling pathway, MTB’s Sales Team needs to select the appropriate technology and thanks to
the expertise from MTB’s Engineering Team the operating variables are selected. It
is from this point that the database makes it possible to calculate the unit performances. This calculation is made according to the general settings, the specific
information flow and the variables. At the end, a synthetic evaluation of the global
process and unit steps is provided to allow discussion.
Table 1 Variables and characterization for recycling each unit process family
Type
Operational details
Characterization
Shredding
Type of technology (constraint)
Cost of purchase
Material losses
Capacity
Reduction rate/fineness
Separation
Type of technology (constraint)
Cost of purchase
Material losses
Capacity
Effectiveness/separation quality
Transport
Type of technology (constraint)
Environmental characterization
Cost of purchase
Material losses
Capacity
Rate flow
Elementary flow
Composition flow
Physical properties
Input or output
Market price
Purity
Sustainability Performance Evaluation …
15