CREATIVE Decontamination Model
The Contact Hazard, Residual Hazard, Efficacy Agent,T&E Integrated, Variable Environment (CREATIVE) decontamination model is being developed by OptiMetrics, and Decontamination Sciences (Edgewood Chemical Biological Center). This model predicts the decontamination efficacy and post-decontamination hazards for a variety of agents, contamination variables, materials, and environmental conditions. The model implements a system of deterministic physical, semi-empirical, and empirical models to represent the mass transport, chemistry, and physics of contamination/decontamination processes. The CREATIVE model is able to predict decontamination efficacy for untested conditions and serve as a reference tool to assess the performance of decontaminants. The first generation CREATIVE model has been released.
Key to a successful CREATIVE model build is the extensive use of laboratory data to establish model parameters and model validation. The first generation model is built using parameters derived from data obtained under highly controlled laboratory conditions. Testing at the laboratory scale utilizes selective control of process parameters to identify and characterize the effect of each parameter on the system. The algorithms developed in this model will be used in the development of future generation models to predict results of large-scale tests (Development Test/Operational Test).
Accurate predictive modeling of decontamination efficacy and post-decontamination hazards depends on accurate modeling of agent transport and concentration gradients. This is accomplished by using a 3D modeling approach.
CREATIVE is the First Model to Address All Three Processes
Contamination – Mass transport processes control how much agent is absorbed and the concentration profile in the material.
Decontamination – Penetration rate (mass transport) of decontaminant and reaction kinetics determine how much agent is removed or neutralized and the distribution of agent.
Hazards – Post-decontamination hazards result from agent mass transport out of the material that was not removed or neutralized by the decontamination process.
