Article ID Journal Published Year Pages File Type
4484341 Water Research 2009 10 Pages PDF
Abstract

Nanoscale zerovalent iron (NZVI) particles have recently become subject of great interest in the field of groundwater remediation for their ability to treat a wide variety of organic and inorganic contaminants. However, the field application of this technology is strongly hindered by the lack of stability of NZVI water suspensions.This study demonstrates that highly concentrated NZVI slurries (15 g/L) can be stabilized for more than 10 days adding 6 g/L of xanthan gum biopolymer. Stability against aggregation and sedimentation was achieved in the range of ionic strength 6 × 10−3–12 mM and is mainly due to the formation of a viscous gel characterized by shear-thinning behaviour.

Related Topics
Physical Sciences and Engineering Earth and Planetary Sciences Earth-Surface Processes
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