Life cycle cost assessment and performance evaluation of sediment control technologies.
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2015-10-01
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Abstract:This study was performed for the Georgia Department of Transportation (GDOT)
to better understand the environmental impacts associated with sediment control
technology currently employed on transportation projects. In this study, a review of
current and past methods for testing sediment control devices (SCDs), both in the field
and in the laboratory, as well as procedures for conducting a life cycle assessment was
performed. Life cycle analysis (LCA) is discussed in depth in this report to facilitate
future LCA on this subject. Field and laboratory testing is executed to measure
performance of five different SCDs for retention of sediment, metals, and nutrients.
Results of the tests are combined with existing data for the production and disposal of
metal, plastic, and timber and emission data for trucks and machinery to model the life
cycle of each SCD. An environmental impact analysis was performed using GaBi 6.0
software and USEPA TRACI methodology.
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