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J Contam Hydrol

Title:		A numerical model for estimating the removal of volatile organic compounds in laboratory-scale treatability tests for thermal treatment of NAPL-impacted soils
Author(s):		Xie Q; Mumford KG; Kueper BH; Zhao C;
Address:		"Department of Civil Engineering, Queen's University, Kingston, ON K7L 3N6, Canada. Electronic address: qianli.xie@queensu.ca. Department of Civil Engineering, Queen's University, Kingston, ON K7L 3N6, Canada. Morrison Hershfield, 2400 Don Reid Drive, Ottawa, ON K1H 1E1, Canada"
Journal Title:		J Contam Hydrol
Year:		2019
Volume:		20190723
Issue:
Page Number:		103526 -
DOI:		10.1016/j.jconhyd.2019.103526
ISSN/ISBN:		1873-6009 (Electronic) 0169-7722 (Linking)
Abstract:		"Treatability tests can be carried out to assess the potential effectiveness of thermal treatment technologies under different site conditions and are important for specific technology selection and design. In order to reduce the costs for laboratory tests and expand the insights from previous treatability studies, a one-dimensional (1D) radial finite difference model was developed to simulate the removal of volatile organic compounds (VOCs) in laboratory thermal treatability tests. The processes considered in the model include heat conduction, co-boiling of single-component or multi-component NAPLs with water, and water boiling. An explicit approach is used to simulate the evolution of NAPL composition for multi-component NAPLs during heating. The developed model adopts only two fitting parameters and was calibrated and validated using previous laboratory experiments. In this paper, the developed model was first calibrated to three laboratory experiments using temperature measurements, which resulted in matches to the NAPL and gas saturations. After calibration, the model was able to predict the temperature, NAPL and gas saturations for the remaining seven experiments, including those with single and multi-component NAPLs, using the average value of each fitting parameter"
Keywords:		"Soil *Soil Pollutants *Volatile Organic Compounds Water *Water Pollutants, Chemical;"
Notes:		"MedlineXie, Qianli Mumford, Kevin G Kueper, Bernard H Zhao, Chen eng Netherlands 2019/08/23 J Contam Hydrol. 2019 Oct; 226:103526. doi: 10.1016/j.jconhyd.2019.103526. Epub 2019 Jul 23"