GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREM...
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Vapor Phase Remediation R1

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Vapor Phase Remediation R1

  1. 1. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS The Nielsen Environmental Field School, Inc. 2012 North American Environmental Field Conference & Exposition VAPOR PHASE REMEDIATION TECHNOLOGIES 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  2. 2. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Agenda • Introductions • Vapor Intrusion Overview • Vapor Phase Remediation Technologies • Vapor Extraction • Air Sparging 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  3. 3. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS John Scripter Technical Sales JohnS@GeotechEnv.com 603.654.6840 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  4. 4. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Geotech Corporate Headquarters Denver, Colorado USA …a world leader in environmental technology, manufacturing and product training since 1978. www.GeotechEnv.com 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  5. 5. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS In addition to corporate headquarters and its European office in Barcelona, Spain, Geotech operates 5 service centers in the United States. Texas North Carolina Michigan Vermont Florida 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  6. 6. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS an environmental industry products leader since 1978 partners with federal, state, local and international government agencies over 20,000 private sector clients worldwide distribution in 72 countries provides products and product training to colleges, universities and technical schools around the globe 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  7. 7. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Audience Introductions • Name • Company name • Experience with vapor phase remediation 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  8. 8. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS What is Vapor Intrusion 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  9. 9. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  10. 10. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS The Facts About Vapor Intrusion • 100,000 contaminated sites in US in 2002* • Contamination sources vary • Problems associated with VI – Health problems – Decline in property values – Liability for property owners * Source: The National Research Council 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  11. 11. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Some Methods of Vapor Phase Remediation • Bioremediation • Venting • Bioventing • Chemical Oxidation • Excavation • Dual Phase Extraction 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  12. 12. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Henry’s Law At a given temperature, the mass of a gas dissolved in a liquid is proportional to the pressure of the gas acting on the liquid. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  13. 13. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS What Happens When Boiling Eggs? • To vaporize contaminants – Increase temperature – Decrease pressure 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  14. 14. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Lower Pressure and Energy Required Melting Boiling Molecular State at Point Point Formula 25oC Name (oC) (oC) methane CH4 -183 -164 Gas ethane C2H6 -183 -89 Gas propane C3H8 -190 -42 Gas butane C4H10 -138 -0.5 Gas pentane C5H12 -130 36 Gas hexane C6H14 -95 69 Gas heptane C7H16 -91 98 Gas octane C8H18 -57 125 Gas nonane C9H20 -51 151 Liquid decane C10H22 -30 174 Liquid undecane C11H24 -25 196 Liquid dodecane C12H26 -10 216 Liquid eicosane C20H42 37 343 Liquid triacontane C30H62 66 450 solid 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  15. 15. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS What is Soil Vapor Extraction ? Soil Vapor Extraction (SVE) extracts contaminants for the subsurface soil in a vapor form. Therefore , SVE systems are designed to remove contaminants that have a tendency to volatilize or evaporate easily such as volatile organic compounds (VOC’s) and some semi-volatile organic compounds ( SVOC’s) beneath the ground surface in the unsaturated zone IE: Vadose zone. By applying a vacuum through a series of underground wells, contaminants are pulled to the surface as vapor or gas. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  16. 16. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Soil Vapor Extraction (SVE) • Extracts contaminants from the subsurface soil in a vapor form • Only works on contaminants which volatilize (or evaporate) easily • Vacuum through underground wells • Contaminants pulled to surface as vapor or gas • Will not remove heavy oils, metals, PCB’s or dioxins 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  17. 17. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Soil Vapor Extraction Applicability The target contaminants group for in situ SVE are VOC’s and some fuels. The technology is typically applicable only to volatile compounds with a Henry’s law constant greater than 0.01 or a vapor pressure greater than 0.5 mm Hg ( 0.02 inches Hg) Other factors, such as moisture content, organic content, and air permeability of the soil, will affect the SVE’s effectiveness. In situ SVE will not remove heavy oils, metals, PCB’s, or dioxins. Because the process involves a continuous flow of air through the soil, however, it often promotes the in situ biodegradation of low- volatility organic compounds that may be present. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  18. 18. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Soil Vapor Extraction Design Considerations • Soil that has high percentage of fines and a high degree of saturation will require higher vacuums • Large screen intervals are required in extraction wells with highly variable permeabilitys or stratification, which may result in uneven delivery of gas flow from contaminated regions 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  19. 19. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Soil Vapor Extraction Design Considerations (continued) • Soil that has high organic content or is extremely dry has a high sorption capacity for VOC’s, which reduce removal rates • SVE is not effective in the saturated zone; however, lowering the water table can expose more of the contaminated zone to the SVE ( LNAPLS) • Exhaust air from the in situ SVE system may require treatment • Residual liquids may require treatment or disposal 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  20. 20. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Soil Vapor Extraction Data Needs • Depth and areal extent of contamination • Concentration of contaminants • Depth to water table • Soil type and properties e.g., structure, texture, permeability, moisture content • Pilot study: to determine radius of influence, flow rate, optimal vacuum and contaminant mass removal rates 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  21. 21. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Soil Vapor Extraction Limitations Factors that may limit the applicability and effectiveness of the process include: • Soil that has high percentage of fines and a high degree of saturation will require higher vacuums ( $$$$$) and / or hinder on the system the operation • Large screen intervals are required in extraction wells with highly variable permeabilitys or stratification, which otherwise may result in uneven delivery of gas flow from contaminated regions. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  22. 22. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Soil Vapor Extraction Limitations (continued) • Soil that has high organic content or is extremely dry has a high sorption capacity for VOC’s, which reduce removal rates. • SVE is note effective in the saturated zone; however, lowering the water table can expose more of the contaminated zone to the SVE ( LNAPLS) • Exhaust air from the in situ SVE system may require treatment ($$$$) • Residual liquids may require treatment or disposal( $$$$) 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  23. 23. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS First Thing -Establish CFM What are you measuring? • CFM is a CFM .. Or is it ? • SCFM, ACFM, ICFM… What does it mean ? 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  24. 24. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS SCFM Definition of SCFM– the term SCFM stands for Standard Cubic Feet Per Minute. It is referenced to a pre-specified atmospheric pressure, temperature, and relative humidity. SCFM is referenced to 14.7 PSIA, 68 degrees F, and 0% relative humidity. By specifying these parameters, the mass flow of compressed air and gas is clearly defined. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  25. 25. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS ACFM Definition of ACFM– the term ACFM stands for Actual Cubic Feet Per Minute. The ACFM is dependent on actual site conditions: PSIA, temperature, relative humidity. By specifying these parameters, the mass flow of compressed air and gas is defined on actual site conditions. The larger the difference between site conditions and SCF conditions, the larger the difference between SCF and ACF. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  26. 26. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS ICFM Definition of ICFM– the term ICFM stands for Inlet Cubic Feet Per Minute. The ICFM is dependent on the amount of air flow that enter in through the air filter on the equipment Vacuum blowers / Pressure Blower manufacturer usually rated at SCFM conditions ….. BUT WHEN ARE YOU REALLY AT THOSE CONDITIONS ?? QUESTION: When you are measuring CFM, are you correcting for the location conditions or are you assuming it is SCFM because the meters says it reads in SCFM ? 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  27. 27. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS BAROMETRIC PRESSURE vs. ALTITUDE FEET PSIA IN HG 0 (sea level) 14.70 29.92 1000 14.16 28.86 2000 13.66 27.82 3000 13.16 26.81 4000 12.68 25.85 5000 12.22 24.89 6000 11.77 23.98 7000 11.33 23.09 8000 10.91 22.22 9000 10.50 21.38 10000 10.10 20.58 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  28. 28. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Soil Vapor Extraction Several blower options available depending on flow and vacuum requirements….including Centrifugal Fans, Regenerative, Rotary Lobe IE: Positive Displacement, Rotary Vane, Rotary Claw, Liquid Ring (Dual Phase – Multi-Phase Extraction {MPE} ) CONFIGURATIONS AVAILABLE • Compact skid mounted designs • Trailer Mounted and Enclosures available • Complete systems including knockout drums, effluent pumps, temperature and vacuum switches, and controls 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  29. 29. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Soil Vapor Extraction “Rule of Thumb” Blower Sizing Application Blower CFM INHGG Equipment Flow Range Vacuum Range Centrifugal Fan 400-1500 1-3 Regenerative 20- 300 2-7 Rotary Lobe 50- 1000 5-15 Rotary Vane 5- 50 5- 28 Rotary Claw 30- 1000 5- 28 Liquid Ring 20- 1000 15- 28 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  30. 30. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Soil Vapor Extraction • Compact skid mounted designs • Trailer Mounted and Enclosures available • Complete systems including knockout drums, effluent pumps, temperature and vacuum switches, and controls • A surface liner or clay cap gives control over the path of airflow. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  31. 31. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Centrifugal Fan Vacuum Application 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  32. 32. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Regenerative SVE in enclosure 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  33. 33. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Rotary Lobe Vacuum Application 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  34. 34. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Rotary Vane Vacuum application 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  35. 35. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Rotary Claw SVE Skid 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  36. 36. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Liquid Ring System Vacuum Application for Multi- Phase 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  37. 37. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS What is Air Sparging? Since SVE cannot remove contaminants in the saturated zone that lies below the water table, Air Sparging technology pushes air into the saturated zone to help flush (bubble) the contaminants up into the unsaturated zone where the SVE extraction wells can remove them. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  38. 38. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Air Sparging • The process of blowing air directly into the ground water. • As the bubbles rise, the contaminants are removed from the groundwater by physical contact with the air (i.e., stripping). • Air and contaminants are carried up into the unsaturated zone (i.e., soil). • As the contaminants move into the soil, a soil vapor extraction system is usually used to remove vapors. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  39. 39. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Air Sparging Applicability & Limitations For Air Sparging to be successful, the soil in the saturated zone must be loose enough to allow injected air to readily escape up into the unsaturated zone. Sites where coarse grained soil, sand, gravel are good candidates. Tight clays and poor permeable soil only inhibit the effectiveness of this technology. You can spend a lot of money on electricity and accomplish very little when the soil are not conducive for Air Sparging technology. As with SVE, the added benefit of Air Sparging is that it provides an oxygen source which helps stimulate aerobic biodegradation. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  40. 40. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Before you can size an Air Sparge Blower – Do a pilot test • As with the SVE pilot, you will need to know just how much air flow and PSIG will be required to push the air into the formation. • Also when incorporating the technology with an SVE system how much is enough ? Too much ? • Rule of thumb: size the Air Sparge unit air flow at 1/3rd to 1/5th of the SVE system air flow. You will want to be able to capture the vapors and not allow for off-site migration. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  41. 41. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Air Sparging an Example • Easier at warmer temperatures. • Effected by moisture, organics, air permeability of the soil. • Ineffective for heavy oils, metals, PCB’s or dioxins. • Enhances biodegradation of low-volatility organic compounds. • Principles based on Henry’s Law. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  42. 42. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Air Sparge Blowers Several blower options available depending on flow and pressure requirements Configurations Available • Compact skid mounted designs • Trailer Mounted and Enclosures available • Complete systems to work in conjunction with an SVE System 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  43. 43. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Air Sparge “Rule of Thumb” Blower Sizing Application Blower CFM PSIG Equipment Flow Range Pressure Range Regenerative 20- 300 <4 Rotary Lobe 50- 1000 1-15 Rotary Vane 5- 50 1- 20 Rotary Claw 50- 350 5- 30 Rotary Screw 20- 200 +30- 150 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  44. 44. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Regenerative 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  45. 45. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Rotary Lobe 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  46. 46. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Rotary Vane 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  47. 47. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Rotary Vane (Dual System) 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  48. 48. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Rotary Claw Pressure Application 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  49. 49. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Rotary Screw 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  50. 50. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS For Example: SV and Sparge Together Vadose Zone Graphic Source: Environmental Geoscience Environmental Science in the 21st Century Textbook by Robert Stewart 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  51. 51. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Carbon Treatment • May be required to treat the off- gas. • 100 lb up to 20,000 lb vessels available • Reactivated carbon, virgin carbon, coconut shell media and other types of media available depending on your application • Low pressure and high pressure units • 50 lb bags for media replacement available 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  52. 52. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Carbon Treatment • Liquid Phase vessels • 100 lb up to 20000 lb vessels available • Reactivated carbon, virgin carbon, coconut shell media and other types of media available depending on your application • Low pressure and high pressure units • 50 lb bags for media replacement available 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  53. 53. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Liquid Phase Carbon Vessels 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  54. 54. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Carbon Treatment • Vapor Phase vessels • 100 lb up to 20000 lb vessels available • Reactivated carbon, virgin carbon, coconut shell media and other types of media available depending on your application • Low pressure and high pressure units • 50 lb bags for media replacement available 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  55. 55. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Vapor Phase Carbon Vessels 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  56. 56. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Plume Eater • Soils are flushed with oxygenated groundwater • Pulls from the groundwater surface and re- injects, oxygenated water deep in the formation, creating convection currents • Accelerates bio-remediation • Maximum efficiency with minimal power • No sub-surface moving parts • Works in a variety of soil types • No net change in groundwater volume • Options available for use with other gases • In Situ Technology – No re-injection permits or water treatment extraction required, water never leaves the subsurface 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  57. 57. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Summary • Get proper data • Choose right blower for your application • Geotech can help in the discussion • Let’s get coffee 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  58. 58. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS Many companies can provide the equipment to keep these industries within environmentally acceptable standards … but Geotech provides more than that. 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  59. 59. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS …your partner in creating the environmentally safe planet of the future! 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
  60. 60. GROUND WATER SAMPLING • WATER LEVEL & PRESSURE • WATER SAMPLE FILTRATION • GROUND WATER REMEDIATION • GEOPHYSICAL MEASUREMENTS John Scripter Technical Sales JohnS@GeotechEnv.com 603.654.6840 2650 East 40th Avenue • Denver, Colorado 80205 • www.geotechenv.com
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