Improved Delivery of Nanoscale Zero-Valent Iron Particles and Simplified Design Tools for Effective Aquifer Nanoremediation

The subsurface injection of nanoscale zero-valent iron particles (nZVI) for the in situ reductive remediation contaminated aquifers has grown over last 25 years. However, several efforts are still being made to improve stability and delivery nZVI simplify procedure site-specific design. In this study, injectability mobility a commercial nZVI-based reactive gel was tested radial geometry laboratory setup. proved be highly mobile sandy porous media, allowing achievement radius influence (ROI) 0.7 m with homogeneous distribution within domain. experimental results therefore confirmed that permeation good is possible conductive formations. software MNMs 2023 (Micro- Nanoparticle transport, filtration, clogging Model-Suite) then applied model transport experiment extrapolate aim developing new graphical tool simple effective For purpose, 1800 numerical simulations were performed build two multiparametric maps predict expected ROI typical aquifer lithologies wide range operating conditions.