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

By APTwater, Inc.

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.