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' VAPOR EXTRACTION AND TREATMENT SYSTEM <br /> Designed as the optimum method for hydrocarbon contaminant extraction and disposal, the <br /> Environmental Techniques Vapor Extraction and Treatment System is a unique compact and efficient f' <br /> state-of-the-art tool for site cleanup. No air, water, or electricity is required at the site. <br /> ' The system employs combustion technology—utilizing an internal combustion engine with computer <br /> controlled fuel feed, to convert recovered hydrocarbons to non-hazardous substances. In developing <br /> this concept, size and portability were considered key factors. The extraction system can be <br /> ' accommodated in a minimal space, such as that available at service stations, allowing uninterrupted <br /> retail operations The straightforward vapor treatment/destruction process employed by this system is <br /> permitted by various regulatory agencies and is considered environmentally and economically sound <br /> Permits include California South Coast Air Quality Management District General registration, Permit <br /> to construct 1 operate various locations within SCAQMD, Fire Department City of Los Angeles General <br /> Approval and American Gas Association safety approval <br /> ENHANCED VAPOR EXTRACTION - AIR SPARGING <br /> 1 <br /> Enhanced recovery is obtained by driving a second (infection) blower This blower injects warm fresh <br /> air into wells situated around the contaminated zone, aiding in the release of the VOCs This <br /> ' procedure adds oxygen and heat to the soil, enhancing bioremediation Extraction flow is also <br /> improved as the vacuum is augmented by the peripheral pressure <br /> ' Air sparging may be used to remove VOCs from ground water This procedure uses a second pump to <br /> bubble fresh air through the hydrocarbon plume within the saturated zone The bubbles travel upward <br /> through the water, capturing VOCs which are drawn by the extraction pump and blown into the engine <br /> for combustion <br /> v <br /> V/R' <br /> FCM TS PROPANE IGNITION�FUEL <br /> Sov SHUTOFF <br /> V P$ WARM <br /> PS FILTER V FRESH <br /> v _177 AIR <br /> S4 <br /> O S ENGINE OPTIONAL <br /> WITH I <br /> NJECTION HOT FRESH AIR <br /> CATALYTIC CLOSED EXTRACTION PP3 BLOWER TO INJECTION WELL <br /> ' CONVERTER R COOLING BLOWER <br /> LEGEND <br /> S3 82 <br /> OPTIONAL FCM=FUEL CONTROL MODULE <br /> DATA ACQUISITION PP2 OS=OXYGEN SENSOR <br /> and/or S=SAMPLE PORTS <br /> MONITORING FILTER TS TEMP SENSOR <br /> ' PP=PRESSNAC PORT <br /> PS=PRESS SENSOR <br /> TOCONTROL CENTER PP1 R=ENGINE RPM <br /> V/R=VAPORIZER/REG <br /> S1 P=PRESS REG <br /> D=LIQUID DROPOUT DRUM <br /> FROM EXTRACTION MANIFOLD D FRS V V V=MANUAL VALVE - <br /> FRS=FLOW RATE SENSOR <br /> DILUTION AIR SOV=SOLENOID VALVE <br /> VAPOR EXTRACTION FLOW DIAGRAM <br />