WORK PLANS - Laserfiche WebLink

Home Browse Search

13 May 2010 AGE-NC Project No. 07- 1529 Page 3 of I 1 enhanced bioremediation application. Additionally RegenOxTM is a powerful yet relatively safe chemical oxidant that is safe for use in direct contact with underground utilities/infrastructure as it is non-corrosive and produces very low amounts of heat and pressure. This process occurs as a result of the powerful desorption-surfactant-like effect of RegenOxTM (principally the catalyst) that draws the contaminant off the soil surface and into solution. The contaminant then reaches the catalytic surface where localized free-radical generation occurs, leading to focus more efficient contaminant destruction. j According to the Regenesis Material Safety and Data Sheet (MSDS), RegenOxTM Part A (oxidizer) is stable under normal conditions is composed of a while powder mixture of sodium percarbonate, sodium carbonate, sodium silicate and silica gel. RegenOxTM Part A (oxidizer) has the hazardous decomposition product of oxygen. According to the Regenesis Material Safety and Data Sheet (MSDS), RegenOxTM Part B (Activator Complex - catalyst) is stable under normal conditions is composed of a blue-green liquid mixture of sodium silicate solution, silica gel and ferrous sulfate. RegenOxTM Part B (Activator Complex - catalyst) has the hazardous decomposition product of oxides of carbon and silicon. The RegenOxTM Parts A and B MSDSs, which also includes information regarding the breakdown and reactivity of RegenOxTM Parts A and B is included in Appendix B. 2 . 1 .2 . RegenOxTM Feasibility Application and feasibility considerations include groundwater flow rate, lithology and contaminant type and mass. Boring logs of MW-9 and VEW-2 provide the lithology around each well (Appendix A), while ground water extraction well EW- 1 is installed within 15 linear feet of wells MW-9 and VEW-2 and also provides a lithologic boring. For the target zone (45 feet to 55 feet bsg) near well VEW- 1 , silts and sandy silts predominant, while silty sand and sands predominant at the target zone (85 feet to 105 feet bsg) near well MW-9 A less permeable clay layer is located at approximately 75 feet to 80 feet bsg, which is between the two target zones. Variable and constant rate ground water aquifer tests were performed in April 2008 at ground water extraction well EW- 1 . Following the tests, it was determined that well EW- 1 could sustain a pump rate of 3 to 4 gallons per minute (gpm) The transmissivity value was calculated at 622 ftZ/day (equivalent to 4,643 gallons per day/ft) and a storativity value was calculated at 0.009 . Based on a transmissivity value of 622 W/day and an aquifer thickness of 20.0 ft, a hydraulic conductivity value Advanced GeoEnvironmental, Inc.