Sediment Recovery Analysis Through The Application of 30D modles

摘要

A predictive numerical model of long-term sediment concentratins is a highly desirable tool in the decision-making process in support of remedial alternatives selection and design. A methdology to support sediment remediation analysis has been developed and implemented with the help of 3-D hydrodynamic and toxics models. The models used were EFDC, a hydrodynamic model, and WASP/TOXI5, a toxics fate and transport model. In the analysis of contarninated sediments and data, the use of these sophisticated models allows better characterization of impacted regions and resolution of "hot--spots" which may be targeted for clean up, and delineates regions which show poterntial for quick natural recovery and may be left alone.