PulseOx IWR (In-Well Reactor) Case Study: Active Gas Station, Riverside, CA

In 1998, underground storage tanks (UST's) contaminated groundwater at an active gas station and convenience store in Riverside, CA with high concentrations of TPH-g, MTBE, TBA and lower concentrations of BTEX. Soil vapor extraction (SVE) and dual-phase extraction (DPE) were employed, but it was determined that a more aggressive treatment approach was needed. In May 2004 APTwater's In Well Reactor technology was installed along with the company's PulseOx® technology and within a 22-day pilot test yielded significant reductions in hydrocarbon concentrations: 98% destruction of TPH-g; 76% destruction of MTBE; and BTEX reduced to ND. The successful pilot led to full-scale implementation of a PulseOx advanced oxidation process (AOP) system in February 2005.