10.1007/s40095-017-0238-4

Flowrate and water presence effect on venting/SVE process efficiency

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  • Mariem Kacem*1,
  • Daoud Esrael2,
  • Belkacem Benadda2,
  1. Univ Lyon, Ecole Nationale d’Ingénieurs de Saint-Etienne, Laboratoire de Tribologie et Dynamique des Systèmes LTDS UMR 5513 CNRS, Saint-Etienne, 42023, FR
  2. Déchets Eaux Environnement Pollutions DEEP, INSA -Lyon 20, Villeurbanne, 69621, FR
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Published in Issue 2017-06-06

How to Cite

Kacem, M., Esrael, D., & Benadda, B. (2017). Flowrate and water presence effect on venting/SVE process efficiency. International Journal of Energy and Environmental Engineering, 8(3 (September 2017). https://doi.org/10.1007/s40095-017-0238-4
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Abstract

Abstract The objective of this paper is to study the effect of the soil water content “SWC” and flowrate on Venting and Soil Vapor Extraction “SVE” process efficiency. Two experiments simulating venting process and SVE process were done on sand column. Two sand water contents were tested: low SWC (7.6%) and a dry one, at low flowrate (600 mL min −1 ) and high flowrate (3200 mL min −1 ). Results show that the efficiency is better at low flowrate and dry sand whatever the process used (96.7%). It decreases with the water saturation and flowrate increases to reach 92.4%. The good efficiency, when low flowrate is applied, needs more time application (500 min) than when high flowrate is applied (300 min) for about 2.5% efficiency win. The presence of water and the low flowrate become more difficult than the contaminant extraction in the tailing part. It has been demonstrated the diffusional nature of this part and then the interest to introduce, in this step, other technics like the discontinued extraction, particularly for dry soil and high flowrate, where efficiency was improved by 1.3%. The utility of the optimal treatment time determination has been demonstrated to save the application time.

Keywords

  • PLNA/gas mass transfer,
  • Flowrate,
  • SWC,
  • SVE,
  • Tailing
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References

  1. Albergaria et al. (2010) Estimation of pollutant partition in sandy soils with different water contents 171(1–4) (pp. 171-180) https://doi.org/10.1007/s10661-009-1269-y
  2. Albergaria et al. (2012) Remediation of sandy soils contaminated with hydrocarbons and halogenated hydrocarbons by soil vapour extraction (pp. 195-201) https://doi.org/10.1016/j.jenvman.2012.03.033
  3. Alvim-Ferraz et al. (2006) Soil remediation time to achieve clean-up goals II: influence of natural organic matter and water contents (pp. 817-825) https://doi.org/10.1016/j.chemosphere.2005.10.065
  4. Amin MM, Hatamipour MS, Momenbeik F, Nourmoradi H, Farhadkhani M, Mohammadi-Moghadam F (2014) Toluene Removal from Sandy Soils via In Situ Technologies with an Emphasis on Factors Influencing Soil Vapor Extraction. Scientific World Journal, 2014, Article ID 416752, pp. 6. Retrieved from
  5. https://www.hindawi.com/journals/tswj/2014/416752/
  6. U.S. Environmental Protection Agency (1994). Innovative site remediation technology vol.8: Vacuum vapor extraction. Retrieved from
  7. https://nepis.epa.gov/Exe/ZyPDF.cgi/2000ITX8.PDF?Dockey=2000ITX8.PDF
  8. Grathwohl (1998) Kluwer Academic https://doi.org/10.1007/978-1-4615-5683-1
  9. Harper B (1999) An experimental and numerical modelling investigation of soil vapour extraction in a silt loam soil (Doctoral dissertation). University of Guelph. Guelph, Canada
  10. He et al. (2008) Study on influencing factors in removal of volatile organic compounds from red earth by soil vapor extraction (pp. 679-683)
  11. Kaleris and Croisé (1997) Estimation of cleanup time for continuous and pulsed soil vapor extraction 194(1–4) (pp. 330-356) https://doi.org/10.1016/S0022-1694(96)03213-1
  12. Kvapil P (2000) Etude du traitement des sols contaminés par des BTEX par la technique du venting (Doctoral dissertation). Université Aix-Marseille 1, Marseille, France
  13. Jiao et al. (2011) Study on influencing factors on removal of diesel oil from unsaturated zone by soil vapor extraction (pp. 401-405)
  14. Johnson et al. (1990) Quantitative analysis for the cleanup of hydrocarbon-contaminated soils by in situ soil venting 28(3) (pp. 413-429) https://doi.org/10.1111/j.1745-6584.1990.tb02271.x
  15. Naon et al. (2013) Evaporation of a volatile organic compound in a hygroscopic soil: influence of the airflow and its VOC vapour saturation 17(1) (pp. 46-63) https://doi.org/10.1080/19648189.2012.720401
  16. Nguyen et al. (2013) Three-dimensional numerical model for soil vapor extraction (pp. 82-95) https://doi.org/10.1016/j.jconhyd.2013.02.008
  17. Normalisation Françasie (1970). Analyses granulometrique: tamisage de contrôle, NF X 11-507, pp. 60–75, 2
  18. e
  19. ed. AFNOR Paris
  20. Ma et al. (2015) Low-concentration tailing and subsequent quicklime-enhanced remediation of volatile chlorinated hydrocarbon-contaminated soils by mechanical soil aeration (pp. 117-123) https://doi.org/10.1016/j.chemosphere.2014.10.074
  21. Ma et al. (2015) Effect of soil water content on the removal of volatile chlorinated hydrocarbons from soil by mechanical soil aeration (pp. 541-548) https://doi.org/10.4028/www.scientific.net/AMM.737.541
  22. Qin et al. (2010) Study on influencing factors on removal of chlorobenzene from unsaturated zone by soil vapor extraction 176(1–3) (pp. 294-299) https://doi.org/10.1016/j.jhazmat.2009.11.027
  23. Smith et al. (1996) Vacuum extraction of a nonaqueous phase residual in a heterogeneous vadose zone 49(1996) (pp. 247-265) https://doi.org/10.1016/0304-3894(96)01761-X
  24. Soares et al. (2013) Biocomplementation of SVE to achieve clean-up goals in soils contaminated with toluene and xylene 185(10) (pp. 8429-8438) https://doi.org/10.1007/s10661-013-3184-5
  25. Thornton JS, Montgomery RE, Voynick T, Wooten W. L (1984) Removal of gasoline vapor from aquifers by forced venting. In: Hazardous Material Spills. Conference Proceedings: Prevention, Behavior. Control and Cleanup of Spills and Waste Sites, pp. 279–285
  26. Truex MJ, Becker DJ, Simon MA, Oostrom M, Rice AK, Johnson CD (2013) Soil vapor extraction system optimization, transition, and closure guidance. U.S. Department of energy, report pp. 130
  27. van der Ham and Brouwers (1998) Modeling and experimental investigation of transient, nonequilibrium mass transfer during steam stripping of a nonaqueous phase liquid in unsaturated porous media 34(1) (pp. 47-54) https://doi.org/10.1029/97WR02713
  28. Wilkins et al. (1995) An experimental investigation of rate-limited nonaqueous phase liquid volatilization in unsaturated porous media: steady state mass transfer 31(9) (pp. 2159-2172) https://doi.org/10.1029/95WR01677
  29. Yoon et al. (2002) Effect of water content on transient nonequilibrium NAPL-gas mass transfer during soil vapor extraction 54(1–2) (pp. 1-18) https://doi.org/10.1016/S0169-7722(01)00164-4
  30. Yoon et al. (2003) Modeling the Influence of Water Content on Soil Vapor Extraction 2(3) (pp. 368-381) https://doi.org/10.2136/vzj2003.3680
  31. Zhao L (2007) Three-dimensional soil vapour extraction modeling (Doctoral dissertation). University of Guelph, Guelph, Canada
  32. Zhao and Zytner (2008) Estimation of SVE closure time 153(1–2) (pp. 575-581) https://doi.org/10.1016/j.jhazmat.2007.08.093