Design of a sediment removal and processing system to reduce sediment scouring potential from the lower Susquehanna River Dams

摘要: The Conowingo, Safe Harbor, and Holtwood dams located on the Lower Susquehanna River have historically acted as a system of sediment nutrient pollution traps, retaining thereby preventing large amounts ecologically harmful from entering Upper Chesapeake Bay. However, extreme storm events, termed scouring cause substantial trapped to be swept downriver into Bay, blanketing benthic organisms, affecting subaquatic vegetation growth, overall water quality. In addition, all three reservoirs reached state near maximum storage capacity dynamic equilibrium. Based prior research, this study seeks reduce buildup in LSR Dams through continuous removal processing system, ecological impact major events. A set scour performance curves derived regression analysis, stochastic lifecycle cost model were used evaluate reduction economic feasibility alternatives: Plasma Vitrification, Cement-Lock, Quarry/Landfill, amount cases: Nominal, Moderate, Maximum. Since treat static, fluid dynamics was determine if there is interaction between capacitance during utility vs. analysis factoring time, performance, suitability alternatives indicates that Cement-Lock plant at nominal moderate dredging most cost-performance effective solution.