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Area of Science:

  • Environmental Science
  • Logistics and Supply Chain Management
  • Waste Management Engineering

Background:

  • EU directives are increasing WEEE collection targets and complexity.
  • Variability in WEEE reverse flows necessitates innovative logistics.
  • Waste level monitoring technology enables dynamic collection schemes.

Purpose of the Study:

  • To evaluate the implementation of dynamic scheduling for WEEE collection.
  • To assess the quantitative impacts of dynamic scheduling in WEEE collection systems.

Main Methods:

  • A hybrid simulation model was developed.
  • Three logistic alternatives were compared: fixed, pure dynamic, and mixed schemes.
  • A case study using data from an Italian municipality analyzed different WEEE types.

Main Results:

  • Dynamic schedules show promising performance compared to fixed schedules.
  • A mixed dynamic-fixed scheduling solution demonstrated significant advantages.
  • The mixed solution improved flexibility and truck resource utilization.

Conclusions:

  • Dynamic scheduling schemes are effective for WEEE collection.
  • A mixed approach optimally combines the benefits of fixed and dynamic scheduling.
  • Implementing dynamic scheduling can enhance the efficiency and responsiveness of WEEE waste management.