Abstract
In order to establish cost-effective monitoringstrategies for soil vapor extraction (SVE), a simplifiedmodel for multi-component mass transfer of a complexliquid mixture in porous media and gas sensor are proposedand experimentally evaluated. The basic task for thecost-effective monitoring of SVE is to decide how topredict the performances of venting systems in terms ofthe contaminant vapor removal rate and the time requiredto accomplish the clean-up specification. The methodincludes classifying of individual components of a complexmixture on the basis of gas chromatographic (GC) profileand treating each resulting group as a pseudo-singlecompound. BTEX components of gasoline were selected formodel input and the remainders were divided into 4 groupsbased on their GC retention times. The model proposed inthis study is capable of predicting with accuracyvolatilization behaviors of gasoline components in soiland the gas sensor (FIGARO TGS 823) was tested by GC-FIDto toluene and TPH-GRO(Total Petroleum Hydrocarbon –Gasoline Range Organics) gas samples. A VOC gas sensor wasdeveloped which recognizes TPH-GRO concentrations between250 and 50 ppm. The developed gas sensor test andproposed model can be used as a valuable tool for thecost-effective monitoring for SVE systems.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bredehoeft, J. D.: 1994, ‘Hazardous waste remediation; A 21st century problem’, Ground Water Monitoring Review 9(1), 95–100.
Clifford, K. Ho and Udell, K. S.: 1994, ‘Propagation of evaporation and condensation fronts during multicomponent soil vapor extraction’, J. of Contam. Hydrol. 16, 381–401.
Hayden, N. J., Thomas C. V. and Michael D. A.: 1994, ‘Change in gasoline constituents mass transfer during soil venting’, J. Envir. Eng. ASCE 120, 1598–1614.
Johnson, P. C., Kemblowski, M. W. and Colthart, J. D.: 1990a, ‘Quantitative analysis for the cleanup of hydrocarbon-contaminated soils by In-situ soil venting’, Ground Water 28(3), 403–412.
Lyman, W. J. and Rosenblatt, D. H.: 1990, ‘Handbook of Chemical Property Estimation Methods’, American Chemical Society, Washington, D.C., 17(1)–17(10).
Marley, M. C. and Hoag, G. E.: 1984, ‘Induced soil venting for Recovery/restoration of gasoline hydrocarbons in the vadose zone’, NWWA/API Conf. On Petroleum Hydrocarbons and Organic Chemicals in Ground Water, 473–501.
Perry, R. H., Green, D. W. and Maloney, J. D.: 1997, Perry's chemical Engineers' Handbook, 6th ed., Mcgraw-Hill, New York, 2(61)–2(76).
Rathfelder, K., Yeh, W.W. and Mackay, D.: 1991, ‘Mathematical simulation of soil vapor extraction systems: model development and numerical examples’, J. Contam. Hydrol. 8, 263–297.
Schramm, J. and Sorenson, S. D.: 1991, ‘Solubility of gasoline components in different lubrications for combustion engines determined by gas-liquid partition chromatography’, J. of Chromatography 538, 241–501.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Yang, JW., Cho, HJ., Choi, GY. et al. Cost-effective Monitoring for a Soil Vapor Extraction (SVE) System. A Simplified Modeling and Gas Sensor Test. Environ Monit Assess 70, 201–210 (2001). https://doi.org/10.1023/A:1010615715717
Issue Date:
DOI: https://doi.org/10.1023/A:1010615715717