You are here:
Preliminary Logistics Modeling of the Integrated Wash Aid Treatment Emergency Reuse System
Citation:
Hepler, K., M. Kaminski, AND E. VanderZee. Preliminary Logistics Modeling of the Integrated Wash Aid Treatment Emergency Reuse System. In Proceedings, WM2019, Pheonix, AZ, March 03 - 07, 2019. U.S. EPA Office of Research and Development, Washington, DC, 10, (2019).
Impact/Purpose:
We employed Analysis of Mobility Platform (AMP) and GoldSim software to model the logistics of deploying materials to implement the Integrated Wash Aid Treatment Emergency Reuse System (IWATERS) in a hypothetical cesium-contamination scenario covering a four-block strip of downtown Chicago, IL. In this deployment of IWATERS, buildings were washed down via fire-hosing and contaminated wash solution was collected in the city’s waste/stormwater collection system. The contaminated wash water was treated to remove Cs via ad hoc sand/clay filtration beds, and then this treated wash solution was recycled during continuing decontamination operations. A detailed task timeline for the IWATERS deployment and information (or assumptions) on the availability and location of required resources for operations provided input parameters, as well as a framework, to enable the AMP and GoldSim simulations. From the decision to deploy IWATERS to the end of operations and processing, contamination wash solution took 49 days with decontamination teams active for 35 days and treatment bed teams active for 37 days. The modeling results showed the availability of vermiculite clay (based on data supplied by its commercial vendors/distributors) as the limiting factor for deploying treatment bed teams, and consequentially the recycling rate of wash water and subsequent completion of decontamination operations. These simulations represent the first attempt at understanding the material and personnel requirements for large-scale IWATERS operation.
Description:
The modeling results showed the availability of vermiculite clay (based on data supplied by its commercial vendors/distributors) as the limiting factor for deploying treatment bed teams, and consequentially the recycling rate of wash water and subsequent completion of decontamination operations. These simulations represent the first attempt at understanding the material and personnel requirements for large-scale IWATERS operation.