Experimental study on non-aqueous phase liquid multiphase flow characteristics and controlling factors in heterogeneous porous media

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• 作者：Yuying Pan ; Jinsheng Yang ; Yonggang Jia ; Zhongshuo Xu
• 关键词：Non ; aqueous phase liquid ; Capillary pressure ; Spreading velocity ; Transient flow ; Heterogeneous porous media
• 刊名：Environmental Earth Sciences
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：75
• 期：1
• 全文大小：1,702 KB
• 参考文献：Busby RD, Lenhard RJ, Rolston DE (1995) An investigation of saturation–capillary pressure relations in two- and three-fluid systems for several NAPLs in different porous media. Groundwater 33:570–578CrossRef
  Cohen RM, Mercer JW (1993) DNAPL site evaluation. In: Smoley CK (ed). Boca Raton, Florida, p 384
  Eckberg DK, Sunada DK (1984) Nonsteady three-phase immiscible fluid distribution in porous media. Water Resour Res 20:1891–1897CrossRef
  Fetter CW (1992) Contaminant hydrogeology. Macmillan Publishing Company, New York
  Glass RJ, Nicholl MJ (1996) Physics of gravity fingering of immiscible fluids within porous media: An overview of current understanding and selected complicating factors. Geoderma 70(2–4):133–163CrossRef
  Hayden N, Diebold J, Farrell C, Laible J, Stacey R (2006) Characterization and removal of DNAPL from sand and clay layered media. J Contam Hydrol 86:53–71CrossRef
  Hofstee C, Walker RC, Dane JH (1998) Infiltration and redistribution of tetrachloroethylene in a stratified water-saturated porous medium. Soil Sci Soc Am J 62:13–22CrossRef
  Huling SG, Weaver JW (1991) Ground water issue: dense nonaqueous phase liquids. EPA/540/4-91-002
  Illangasekare TH Jr, Ramsey JL, Jensen KH, Butts MB (1995) Experimental study of movement and distribution of dense organic contaminants in heterogeneous aquifers. J Contam Hydrol 20(1–2):1–25CrossRef
  Imhoff PT, Mann AS, Mercer M, Fitzpatrick M (2003) Scaling DNAPL migration from the laboratory to the field. J Contam Hydrol 64:73–92CrossRef
  Kueper BH, Abbott W, Farquar G (1989) Experimental observations of multiphase flow in heterogeneous porous media. J Contam Hydrol 5:83–95CrossRef
  Kueper BH, Redman D, Star RC, Reitsma S, Mah M (1993) A field experiment to study the behavior of tetrachloroethylene below the water table: spatial distribution of residual and pooled DNAPL. Ground Water 31:756–766CrossRef
  Lenhard RJ (1992) Measurement and modeling of three-phase saturation-pressure hysteresis. J Contam Hydrol 9:243–269CrossRef
  Lenhard RJ, Parker JC (1988) Experimental validation of the theory of extending two-phase saturation-pressure relations to three-fluid phase systems for monotonic drainage paths. Water Resour Res 24(3):373–380CrossRef
  Lenhard RJ, Johnson TG, Parker JC (1993) Experimental observation of non aqueous-phase liquid subsurface movement. J Contam Hydrol 12:79–101CrossRef
  Mercer JW, Cohen RM (1990) A review of immiscible fluids in the subsurface: properties, models, characterization, and remediation. J Contam Hydrol 6:107–163CrossRef
  Miller CD (1997) Immiscible fluids in layered porous media: examples of accessibility and hysteresis. MS thesis. Colorado State University, Fort Collins
  Miller CD, Durnford DS, Fowler AB (2004) Equilibrium nonaqueous phase liquid pool geometry in coarse soils with discrete textural interfaces. J Contam Hydrol 71:239–260CrossRef
  Newell CJ, Acree SD, Ross RR, Huling SG (1995) Ground water issue: light nonaqueous phase liquids. EPA/540/S-95/500
  Oostrom M, Hofstee C, Lenhard RJ, Wietsma TW (2003) Flow behavior and residual saturation formation of liquid carbon tetrachloride in unsaturated heterogeneous porous media. J Contam Hydrol 64:93–112CrossRef
  Oostrom M, Hofstee C, Wietsma TW (2006) LNAPLs do not always float: an example case of a viscous LNAPL under variable water table conditions. In: 26th Annual American Geophysical Union Hydrology Days, pp 119–130, 20–22 March 2006
  Pantazidou M, Sitar N (1993) Emplacement of nonaqueous liquids in the vadose zone. Water Resour Res 29:705–722CrossRef
  Reible DD, Illangasekare TH, Doshi DV, Maihiet ME (1990) Infiltration of immiscible contaminants in the unsaturated zone. Groundwater 28:685–692CrossRef
  Sakari M, Zakaria MP, Junos MM, Annuar NA, Yun HY, Heng YS, Zainuddin SMHS, Chai KL (2008) Spatial distribution of petroleum hydrocarbon in sediments of major rivers from east coast of peninsular Malaysia. Coast Mar Sci 32:9–18
  Schroth MH, Istok JD, Ahearn SJ, Selker JS (1995) Geometry and position of light nonaqueous-phase liquid lenses in water-wetted porous media. J Contam Hydrol 19(4):269–287CrossRef
  Schroth MH, Istok JD, Selker JS (1998) Three-phase immiscible fluid movement in the vicinity of textural interfaces. J Contam Hydrol 32(1–2):1–23CrossRef
  Smith JE, Zhang ZF (2001) Determining effective interfacial tension and predicting finger spacing for DNAPL penetration into water-saturated porous media. J Contam Hydrol 48(1–2):167–183CrossRef
  Thomson NR, Graham DN, Farquhar GJ (1992) One-dimensional immiscible displacement experiments. J Contam Hydrol 10:197–223CrossRef
  van Geel PJ, Sykes JF (1994) Laboratory and model simulations of an LNAPL spill in a variably-saturated sand medium: 1. Laboratory experiment and image analysis techniques. J Contam Hydrol 17:1–25CrossRef
  Wipfler EL, Ness M, Breedveld GD, Marsman A, van der Zee SEAATM (2004) Infiltration and redistribution of LNAPL into unsaturated layered porous media. J Contam Hydrol 71(1–4):47–66CrossRef
  Zakaria MP, Takada H, Tsutsumi S, Ohno K, Yamada J, Kouno E, Kumata K (2002) Distribution of polycyclic aromatic hydrocarbons (PAHs) in rivers and estuaries in Malaysia: Widespread input of petrogenic PAHs. Environ Sci Technol 36:1907–1918CrossRef
  Zhanga ZF, Smith JE (2001) The velocity of DNAPL fingering in water-saturated porous media: laboratory experiments and a mobile-immobile-zone model. J Contam Hydrol 49(3–4):335–353CrossRef
  
• 作者单位：Yuying Pan (1)
  Jinsheng Yang (1)
  Yonggang Jia (2)
  Zhongshuo Xu (3)
  
  1. College of Fisheries, Zhejiang Ocean University, Zhoushan, 316022, China
  2. College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
  3. College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：None Assigned
• 出版者：Springer Berlin Heidelberg
• ISSN：1866-6299

文摘

Enhanced understanding of non-aqueous phase liquid (NAPL) infiltration into porous media is important for the effective design of remediation strategies. Six model multi-flow experiments in two-dimensional polymethyl methacrylate tank were carried out to verify the influences of soil initial water content, local low permeability lens, lithologic sharp interface and leakage position on light non-aqueous phase liquid (LNAPL) and dense on non-aqueous phase liquid (DNAPL) transport velocities in soil, with diesel and perchlorethylene as LNAPL and DNAPL, respectively. The evolutions of the plume were recorded through the transparent side of the tank by CCD camera and the contaminant fronts were traced using gel pen on a plastic film coated on tank wall at appropriate intervals. The controlling factors of free NAPL migration paths and speeds were analyzed thoroughly, and capillary pressure equilibrium models of NAPL-water/NAPL-air interface and the partition movement theory were put forward. Results show that the effect of NAPL types: soil initial water content, local low permeability lens, leakage position and lithologic sharp interface on NAPL migration paths and velocities are diverse. The NAPL movement principles should be presented in accordance with partitions as related to the initial water content namely dry soil area, capillary zone and water-saturated zone. The vertical movement and lateral extension of NAPL are interdependent, and the vertical migration is dominant in initial leakage stage. The vertical migration is hindered by lateral growth when meeting with local low permeability lens, lithologic sharp interface or capillary fringe. Vertical migration rate reduction is mainly caused by the pore resistance, NAPL residual and lateral spreading and the causes of corresponding increase of horizontal expansion speed are the decrease of vertical velocity and the increase of buoyancy. The sufficiently short time allows to neglect chemical reactions, dissolution and sorption of NAPL and heterogeneous porous media.