Abstract: A process for making a reduced size oxidant particle is provided. The process forms reduced sized oxidant particles by feeding a coating material and oxidant particles of an initial size into a mill. The coating material may be oleophilic, hydrophobic, siliphilic, hydrocarbon soluble, or a combination thereof. The oxidant particles are then milled, reducing the particle size of the oxidant particles. During the milling step, the coating coats a substantial portion of each reduced sized oxidant particle reducing reagglomeration during the milling step. Optionally, the oxidant particles produced by the process of the instant invention are encapsulated. Alternatively or additionally, the oxidant particles may be placed in suspension. An outermost encapsulant may be substantially non-reacting, impermeable and non-dissolving with water. The oxidant particles formed by the process of the present invention may be placed directly into or in the path of the contaminant(s) in the environmental media to be treated.

Abstract: A process for insitu treatment of at least one contaminant in groundwater, the process comprises the steps of: installing a permeable reactive barrier in the flow path of the at least one contaminant, wherein the installation of the permeable reactive barrier comprises the steps of: boring a first borehole with a portion longitudinally extending; filling the longitudinally extending portion with a reactive material comprising a solid reactant configured to react with the at least one contaminant in the groundwater to produce at least one product having less hazardous characteristics than the at least one contaminant; boring a second longitudinally extending portion and filling the second longitudinally extending portion with the reactive material.

Abstract: A process for insitu treatment of at least one contaminant in groundwater, the process comprises the steps of: installing a permeable reactive barrier in the flow path of the at least one contaminant, wherein the installation of the permeable reactive barrier comprises the steps of: boring a first borehole with a portion longitudinally extending; filling the longitudinally extending portion with a reactive material comprising a solid reactant configured to react with the at least one contaminant in the groundwater to produce at least one product having less hazardous characteristics than the at least one contaminant; boring a second longitudinally extending portion and filling the second longitudinally extending portion with the reactive material.

Abstract: A process for insitu treatment of at least one contaminant in a groundwater plume, the process comprises the steps of: installing a permeable reactive barrier in the flow path of the groundwater plume, wherein the installation of the permeable reactive barrier comprises the steps of: boring a first borehole with a portion longitudinally extending substantially parallel with an upper surface of the groundwater plume; filling the longitudinally extending portion of the first borehole with a reactive material comprising a solid reactant configured to react with the at least one contaminant in the groundwater plume to produce at least one product having less hazardous characteristics than the at least one contaminant; boring a second borehole with a portion proximate, substantially adjacent or overlapping the longitudinally extending portion of the first borehole; and filling the portion of the second borehole proximate, substantially adjacent or overlapping the longitudinally extending portion of the first boreh