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2.0 MATERIALS and METHODS
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<br /> 2. 1 Materials
<br /> 30% H2O2. ACS Reagent Grade 30% H202 (V WR) was used in these tests.
<br /> Ferrous sulfate heptahydrate, FeSO4.7H2O. FeSO4.7H20 (Mallinckrodt) Solutions
<br /> were prepared by dissolving the appropriate amount in 0 .01 N sulfuric acid then diluting
<br /> to volume with deionized water.
<br /> Chelated Iron, Fe-EDTA. Chelated iron solution was prepared by dissolving
<br /> GrowMoreTM agricultural iron in deionized water. GrowMoreTM iron is iron chelated
<br /> with EDTA that is 13 % iron by weight.
<br /> 2.2 Soil and Groundwater Preparation and Characterization
<br /> Two soil samples (BT- 1 and BT2) were received November 17, 2006. Prior to testing,
<br /> the samples were composited and particles greater than about 4 mesh were removed
<br /> composited soil was analyzed for
<br /> GRO
<br /> - Cr(VI)
<br /> metals (CAM- 17+Fe, Mn: aluminum, antimony, arsenic, barium, beryllium, cadmium,
<br /> calcium, chromium, cobalt, copper, iron, lead, magnesium, manganese, mercury,
<br /> molybdenum, nickel, potassium, selenium, silver, sodium, thallium, tungsten, vanadium,
<br /> and zinc)
<br /> Two groundwater samples (DPE- 1 and DPE-2) were received on November 20, 2006.
<br /> Only DPE- 1 groundwater was used. It was received in multiple 1 -L containers which
<br /> were composited prior to testing. Composited groundwater was analyzed for
<br /> GRO
<br /> - Cr(VI)
<br /> metals (CAM- 17+Fe, Mn: aluminum, antimony, arsenic, barium, beryllium, cadmium,
<br /> calcium, chromium, cobalt, copper, iron, lead, magnesium, manganese, mercury,
<br /> molybdenum, nickel, potassium, selenium, silver, sodium, thallium, tungsten, vanadium,
<br /> and zinc)
<br /> - oxidation reduction potential
<br /> - pH
<br /> - sulfate
<br /> 2.3 COC Removal
<br /> Batch tests were conducted to determine which oxidant systems are most effective at
<br /> removing GRO and to evaluate contaminant destruction vs. volatilization. The initial
<br /> conditions are given in Table 2 . Two controls were run because tests containing H2O2
<br /> PRIMA Environmental, Inc. 7 Eval of Peroxide
<br /> February 8, 2007 - Cambria—G Street, Davis
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