Magdalena M. Krol

TL;DR: The use of nano zero valent iron (nZVI) for groundwater remediation has been investigated for its potential to reduce subsurface contaminants such as PCBs, chlorinated solvents, and heavy metals.

TL;DR: This study suggests that CMC stabilized nZVI can be transported at least 1 m to the contaminated source zone at significant Fe(0) concentrations for reaction with target contaminants.

TL;DR: Simulation of a field injection of carboxylmethyl cellulose stabilized nZVI using a 3D compositional simulator, modified to include colloidal filtration theory (CFT), shows that an increase in solution viscosity, resulting from injection of CMC stabilized n zerovalent iron suspension, affects nZ VI mobility by decreasing attachment as well as changing the hydraulics of the system.

TL;DR: This study showed that CMC stabilized monometallic nZVI was able to decrease tricholorethene (TCE) concentrations in groundwater by more than 99% from the historical TCE concentrations, and suggests that on-site synthesized n ZVI particles are mobile in the subsurface and that a numerical simulator can be a valuable tool for optimal design of nZ VI field applications.

TL;DR: In this paper, a finite difference flow and mass transport model was developed which incorporates a macroscopic invasion percolation (MIP) model to simulate bubble expansion and movement, which was used to simulate three soil scenarios with different permeabilities and entry pressures at various operating temperatures and groundwater velocities.