Stable dispersions of zero-valent iron particles are produced by milling of micro- and nano-scale iron particles (colloids) in the presence of a dispersant or dispersants.
The present invention is a process for preparing zero-valent iron suspensions which can be used directly at the source of the pollution, applied to deep aquifers, and spread over large areas of contaminated soil or water.
This technology is protected under US Patent 7,128,841