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ISOTEC <br /> MM <br /> MITT <br /> PROCEDURE FOR 'ru.l-° LABORATORY Y TltlW17ABILITY STUDY <br /> ISOTEC performs a bench-scale laboratory treatability study to achieve the following objectives: <br /> ♦ Evaluate the effectiveness of the ISOTEC oxidative process on a representative site-specific <br /> groundwater sample (Groundwater test). <br /> ♦ Evaluate the effectiveness of the ISOTEC oxidative process on a representative site-specific <br /> soil-slurry sample (Soil-slurry test). The soil-slurry sample is prepared by combining <br /> composited soil samples with site groundwater samples in a 2:1 ratio. <br /> ♦ For each ISOTEC catalyst under evaluation, determine the amount of catalyst/oxidant mix <br /> (reagent) required to oxidize the measured site contaminants (i.e. site-specific stoichiometry <br /> per catalyst); <br /> Typical bench scale study procedures are outlined below. The study consists of establishing initial <br /> conditions, setting up experimental control, conducting the experiments through application of <br /> various catalysts and oxidants, and then submitting the treated samples for analysis. Please note <br /> that a standard bench study includes VOC analysis for all test samples and total organic <br /> carbon (TOC), iron and manganese analysis for initial samples. <br /> Initial Conditions <br /> Initial untreatedibaseline conditions of soil, soil-slurry, and groundwater are established prior to <br /> initiating the experiment. Initial groundwater samples are analyzed for VOCs, iron and <br /> manganese. Initial soil samples are analyzed for iron, manganese and total organic carbon (TOC). <br /> The initial soil-slurry samples are analyzed for VOCs. <br /> Experimental Control <br /> Experimental control samples (Control) are set up the same way as all other experimental samples <br /> during the study to document the following: <br /> ♦ reduction in contaminant concentrations due to sample dilution by reagent volumes injected, <br /> and <br /> ♦ reduction in contaminant concentrations due to volatilization caused by room temperature test <br /> conditions. <br /> Control sample is set up in a treatment reactor but is injected with distilled water instead of <br /> reagents. The volume of distilled water injected is identical to the volumes of reagent injected <br /> into treatment reactors. Control sample will remain at and is subject to the same conditions as all <br /> other treatment and monitoring reactors. <br /> IN-SITU OXIDAT]V F.TECHNOLOGIES, INC. <br />