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Waste Collection Life-Cycle Process Modeling

Solid waste collection is a primary contributor to cost, emissions, and fossil fuel use associated with solid waste management (SWM). A collection process model was developed as part of the Solid Waste Optimization Life-cycle Framework (SWOLF). The collection model can be used within SWOLF or as a stand-alone tool to represent user-defined collection schemes. Using data to represent a site-specific scenario, the model determines total energy consumption, emissions and cost per ton of waste collected. Input parameters were developed from an empirical data set gathered from observation of collection activities and from operational data obtained from industry and government. A dataset developed from empirical values was used in a validation analysis to predict fuel consumption and compare the model-generated values with operational observations. The validation analysis was used to demonstrate the model functionality, provide sample scenario comparisons, and illustrate model sensitivity to select inputs. http://go.ncsu.edu/SWM-LCA