ABSTRACT
In June 1985 the mobile van was transported to the site and a sample of the raw groundwater was analyzed to confirm the characteristics of the contaminants prior to startup and continuous operation of the pilot plant at 10 gpm. Initial groundwater analytical results determined that there were high concentrations of 1, 1, 1-trichloroethane, carbon tetrachloride, methylene chloride and some other volatile organic compounds. Addition of the carbon adsorption step was a relatively easy task since the Envirex Advanced Water Treatment System Van was equipped with 4 onboard carbon adsorption columns. Shortage of raw groundwater storage capacity and deadlines for full-scale treatment system implementation forced the decision to design a full-scale elevated temperature air stripping system without pilot scale confirmation data. The 10 gpm permanent groundwater treatment system was designed for maximum flexibility and could be operated in either the batch or continuous mode.
