Advancements to the EZVI Technology: Optimization of Biotic and Abiotic Processes and Improved Implementability
Approach/Activities: Emulsified ZVI (EZVI) technology provides a solution to these problems. First, it is engineered to enable maximum contact with source materials, while including ZVI suspended within water (hydrogen donor) so that direct DNAPL destruction is possible using ZVI technology. EZVI also combines food grade vegetable oil (VO) with a surfactant, elemental iron and water in a specific physical structure to enable direct DNAPL destruction utilizing a combination of abiotic and biotic processes while leveraging contaminant physical chemistry. The key innovation surrounding genuine EZVI technology is the structure of the emulsion. The structure of the EZVI technology enables; Miscibility with DNAPLs in situ; Continuous Sequestration (phase partitioning) of COI into outer VO membrane (decreased COI mass flux); Encapsulates ZVI so that it only reacts with COIs with hydrophobic physical chemistry; and Provides a long term hydrogen source for biostimulation downgradient from the source area.