REMEDIATION USING SOY BASED AEROBICCO-METABOLISM FOR REMOVAL OF CHLORINATED HYDROCARBONS FROM GROUNDWATERForum Presentatio...
Update Slide<br />2008 Presentation<br />2009  and Others<br />www.soygold.com/products/.../sg5000_RemediationTechnologyUp...
PRESENTATION <br /><ul><li>PROCESS BASICS
DEVELOPMENT AND TESTING
HIGHLIGHTS FROM 6 PILOT TESTS AND 6 FULL SCALE TESTS</li></li></ul><li>BASICS OF SOY BASED AEROBIC C0-METABOLISM<br />Inje...
BIODEGRADABLE FOOD GRADE SURFACTANT ADDED TO SOY METHYL ESTER<br />Forms emulsion with water<br />Significantly enhances d...
DEVELOPMENT, TESTING & APPLICATION<br />Chlorinated hydrocarbon concentrations were significantly reduced at a site where ...
FIRST FIELD SCALE PILOT – 2002<br /><ul><li>  One injection well
  Two monitoring wells
   5 years of AS/SVE</li></ul>prior to injection<br />
Results From First Field Pilot TestTotal Halogenated CompoundsSource Area Well - 2002<br />99.9% Reduction<br />5 years<br...
First Sitewide Application - 2002<br /><ul><li>  Site size – ½ acre
  7 injection wells
  5 monitoring wells
  COCs
Carbon tetrachloride
    Chloroform
    Tetrachloroethene
    Fluorocarbons
  >99% reductions in less   	than one year.  Minimal 	rebound 2 years after 	shutdown</li></li></ul><li>Results From First...
Second Full Scale Remediation 2003Sitewide Average ConcentrationTotal Halogenated Compounds<br /><ul><li>  Site size ½ acre
  6 injection wells
  10 monitoring points
  COCs
  Tetrachloroethene
  Carbon Tetrachloride
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Remedition Using Soy Based Aerobic Co-Metabolism for Removal of Chlorinated Hydrocarbons from Groundwater

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Presentation from the Nov 2008 Alcoa Forum. Thanks for the upload. Note - the majority of the site work is related to Do Blackert - i updated the pdf to include Dons link information. The rest of the information is from the presentation.

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Remedition Using Soy Based Aerobic Co-Metabolism for Removal of Chlorinated Hydrocarbons from Groundwater

  1. 1. REMEDIATION USING SOY BASED AEROBICCO-METABOLISM FOR REMOVAL OF CHLORINATED HYDROCARBONS FROM GROUNDWATERForum Presentation<br />Neale Misquitta and<br />Dale Foster<br />Key Environmental, Inc.<br />412-279-3363<br />
  2. 2. Update Slide<br />2008 Presentation<br />2009 and Others<br />www.soygold.com/products/.../sg5000_RemediationTechnologyUpdate.pdf<br />www.eswp.com/brownfields/program09.htm<br />cluin.org/search/default.cfm?search_term=aerobic&t...41<br />www.battelle.org/ASSETS/.../Presentations.pdf<br />
  3. 3. PRESENTATION <br /><ul><li>PROCESS BASICS
  4. 4. DEVELOPMENT AND TESTING
  5. 5. HIGHLIGHTS FROM 6 PILOT TESTS AND 6 FULL SCALE TESTS</li></li></ul><li>BASICS OF SOY BASED AEROBIC C0-METABOLISM<br />Inject and disperse highly biodegradable soy methyl ester<br />Create and maintain aerobic conditions<br />Indigenous aerobic microbe populations increase by up to several orders of magnitude<br />In the process of metabolizing the methyl ester, microbes produce oxygenase enzymes<br />Enzymes capable of breaking molecular bonds of chlorinated molecules<br />Chlorinated hydrocarbons degraded to basic components<br />
  6. 6. BIODEGRADABLE FOOD GRADE SURFACTANT ADDED TO SOY METHYL ESTER<br />Forms emulsion with water<br />Significantly enhances dispersion in aquifer<br />Provides co-solvent effect to strip hydrocarbons from water and soil, minimizing rebound<br />
  7. 7. DEVELOPMENT, TESTING & APPLICATION<br />Chlorinated hydrocarbon concentrations were significantly reduced at a site where toluene was co-mingled in groundwater (toluene oxygenase enzyme process)<br />Needed dispersible, biodegradable, food<br /> grade material to replace toluene<br />Jar and column tests indicated that the soy methyl ester surfactant blend had best dispersion characteristics of any carbon sources tested<br />First field pilot injections in 2002. Six pilot tests and six full scale applications conducted between 2002 & 2007 – Most of the work by Don Blackert<br />
  8. 8. FIRST FIELD SCALE PILOT – 2002<br /><ul><li> One injection well
  9. 9. Two monitoring wells
  10. 10. 5 years of AS/SVE</li></ul>prior to injection<br />
  11. 11. Results From First Field Pilot TestTotal Halogenated CompoundsSource Area Well - 2002<br />99.9% Reduction<br />5 years<br />1 year<br />
  12. 12. First Sitewide Application - 2002<br /><ul><li> Site size – ½ acre
  13. 13. 7 injection wells
  14. 14. 5 monitoring wells
  15. 15. COCs
  16. 16. Carbon tetrachloride
  17. 17. Chloroform
  18. 18. Tetrachloroethene
  19. 19. Fluorocarbons
  20. 20. >99% reductions in less than one year. Minimal rebound 2 years after shutdown</li></li></ul><li>Results From First Full Scale RemediationSitewide Average ConcentrationTotal Halogenated Compounds<br /><ul><li> 99% reduction </li></ul> first year<br /><ul><li> 93% reduction after</li></ul> 2½ years of rebound<br />5 years 1 year 2½ years <br />
  21. 21. Second Full Scale Remediation 2003Sitewide Average ConcentrationTotal Halogenated Compounds<br /><ul><li> Site size ½ acre
  22. 22. 6 injection wells
  23. 23. 10 monitoring points
  24. 24. COCs
  25. 25. Tetrachloroethene
  26. 26. Carbon Tetrachloride
  27. 27. Chloroform
  28. 28. Fluorocarbons
  29. 29. 98% reduction within </li></ul> 1 year<br /><ul><li> 94% reduction 28 months </li></ul> after shutdown<br />2½ years<br />1 year<br />7 years<br />
  30. 30. Average Chloride ConcentrationsFirst Pilot Test<br />
  31. 31. Heterotrophic Plate Count<br />
  32. 32. Dissolved Oxygen Concentration<br />
  33. 33. KANSAS CITY, KANSAS<br /><ul><li>Pilot test September 2003
  34. 34. Site-wide application December 2004
  35. 35. Design in progress for remediation of </li></ul>off-site plume during 2008 <br />
  36. 36. KANSAS CITY PILOT TEST 2003<br /><ul><li>2 Injection wells
  37. 37. 4 Monitoring</li></ul> points<br /><ul><li>99% reduction </li></ul>in 9 months<br /><ul><li>COCs
  38. 38. TCE
  39. 39. DCE</li></li></ul><li>KANSAS CITY, KANSASFULL SCALE REMEDIATION SUMMARY<br /><ul><li>PPM Concentrations of TCE and DCE
  40. 40. Source area remediation approximately 1 acre
  41. 41. Site wide application reduced concentrations approximately 84% in the first year
  42. 42. Site-wide reductions through November 2007
  43. 43. TCE 98%
  44. 44. CIS 1,2 DCE 97%</li></li></ul><li>TESTS 5 AND 6 SUPERFUND SITE - WEST VIRGINIA<br /><ul><li>Two Test areas 2004 – Plume core and </li></ul> plume fringe<br /><ul><li>Each test area included 2 injection</li></ul> points and 4 monitoring points<br /><ul><li> First chemical limitations observed
  45. 45. Successful removal of chlorinated </li></ul> hydrocarbons<br />
  46. 46. Recalcitrant CompoundsCo-metabolic Pilot TestSuperfund Site – West Virginia<br />
  47. 47. Chloroethane, Dimethylthiourea, Benzene DegradationCo-metabolic Pilot TestSuperfund Site – West Virginia<br />
  48. 48. Microbial ResponseSuperfund Site – West Virginia<br /><ul><li>Plume Core Area Average Microbial Populations
  49. 49. Increased from 64,000 cfu/ml to 1.2 million cfu/ml during the first 3 months
  50. 50. Plume Core Area Maximum single well Population Increase
  51. 51. From non-detectable concentrations to 5.5 million cfu/ml
  52. 52. Plume Fringe Area Average Microbial Populations
  53. 53. Increased from 45,000 cfu/ml to over 10 million cfu/ml during the first 3 months
  54. 54. Plume Fringe Area Maximum single well Population Increase
  55. 55. From 51,000 cfu/ml to 48 million cfu/ml</li></li></ul><li>Field Pilot Test – Ohio 2005<br /><ul><li>Two injection points – 5 monitoring points
  56. 56. First (and only) test determined to be unsuccessful for all chlorinated hydrocarbons present in groundwater</li></ul> (TCE, PCE, DCE, DCA)<br /><ul><li>pH >11 precluded adequate microbial activity
  57. 57. Provided additional verification of the importance of biological processes</li></li></ul><li>Bench Scale Verification of Microbial Response to pH<br />
  58. 58. Milwaukee, Wisconsin2005 and 2007 Summary<br />Large scale test initiated in 2005 (16 wells) <br />Remediation area expanded up-gradient to source area beneath active manufacturing building during 2007<br />Sitewide reduction March through October 2007 <br /><ul><li>TCA 99%
  59. 59. DCA 92%
  60. 60. TCE 90%
  61. 61. PCE 98%
  62. 62. DCE 99%</li></li></ul><li>Milwaukee, Wisconsin2005 and 2007 Summary (continued)<br />Saturated zone soil analysis indicated greater than 90% reduction in several chlorinated hydrocarbons in 5 months<br />Operation terminated in 2008 <br /> “Case Closure” pending approval<br /> from WDNR<br />
  63. 63. Summary & ConclusionsAerobic Co-metabolism<br /><ul><li>Safe – In Situ process
  64. 64. Effective for a wide variety of chlorinated hydrocarbons without generation of daughter products
  65. 65. Rapid and cost effective
  66. 66. 95-99% removal efficiency typical in 6-12 months
  67. 67. Combined microbial and co-solvent processes minimize post treatment rebound by treating both groundwater and saturated soil
  68. 68. Particularly well suited for:
  69. 69. Sites where AS/VE systems already exist and chlorinated hydrocarbons persist
  70. 70. Small, high concentration “hot spots”
  71. 71. Plume cut-off systems</li>

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