METHOD AND APPARATUS FOR ELIMINATING VOLATILE ORGANIC COMPOUND FROM STRATUM REGION ABOVE POLUTED GROUNDWATER LEVEL

摘要

PURPOSE: To provide the process and apparatus for removing volatile organic compounds from the contaminated vadose soil area. CONSTITUTION: The process for removing volatile organic compounds from a contaminated vadose soil area is comprised of digging holes in the contaminated vadose soil, inserting a recovery probe 14 into each hole, connecting the recovery probes to a gas flow line 26 so as to draw gas from recovery probe 14, which line is connected to a water separator tank 28, wherein liquid contaminates and gaseous contaminants are separated, drawing the contaminated gas into the water separator tank 28, transfering the gas introduced into the water separator tank 28 to a filter 44 by blower means 42, removing volatile organic compounds from the gas by an activated carbon in the filter 44 and discharging purified gas through a gas exit 62 into the atmosphere.