초록 ▼

A process for the removal of hydrocarbon contaminates from groundwater and/or wastewater in ground wells, treatment trenches or above-ground tanks which utilizes differential pressure between the area above the groundwater and/or wastewater and the purging gas introduced therein to the upward flow o

A process for the removal of hydrocarbon contaminates from groundwater and/or wastewater in ground wells, treatment trenches or above-ground tanks which utilizes differential pressure between the area above the groundwater and/or wastewater and the purging gas introduced therein to the upward flow of bubbles of the purging gas through the groundwater and/or wastewater requiring stripping or volatilization to remove the hydrocarbon contaminates therefrom.

대표청구항 ▼

[ What is claimed:] [1.]1. A method for removing hydrocarbon contaminants from groundwater and/or wastewater, said groundwater and/or wastewater having a surface area, consisting essentially of the steps of:first subjecting the surface area of said groundwater and/or wastewater to at least a partial

[ What is claimed:] [1.]1. A method for removing hydrocarbon contaminants from groundwater and/or wastewater, said groundwater and/or wastewater having a surface area, consisting essentially of the steps of:first subjecting the surface area of said groundwater and/or wastewater to at least a partial vacuum via a vacuum pump creating an upwelling of said groundwater and/or wastewater;then providing in said groundwater and/or wastewater a plurality of conduits, each of said conduits having a distal end and a proximal end, wherein the distal ends are submerged therein and the proximal ends are located above said groundwater and/or wastewater;then introducing a purging gas under at least atmospheric pressure into the proximal ends of said conduits, each of said conduits having a small diameter chosen so that said gas will form a large volume of small bubbles as it flows from the distal ends thereof, said bubbles serving to remove said hydrocarbon contaminants from said groundwater and/or wastewater as they are volatilized by said bubbles into contaminated gases that travel upward to the surface area of said groundwater and/or wastewater; andthen removing the contaminated gases from the surface area of said groundwater and/or wastewater by routing said contaminated gases through said vacuum pump where said contaminated gases are discharged.