重建(污染)源历史工具的实际应用
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摘要
污染物通过扩散迁移到低渗透系数区,产生浓度与深度的关系,可用于源衰变导致的浓度随时间衰减的证据。本文使用的数据来源于我国南方某场地,基于传输的电子表格工具,用于生成符合剖面的源历史推测值,并将其拟合已获得的土壤浓度与深度数据。该工具生成的源历史推测类似于使用更密集的分析或数值反建模方法生成的源历史推测,包括存在致密非水相液体(或怀疑存在)的地点确认恒定的源史,以及在发生源隔离或衰减的地点确认下降的源史。此建模工具提供了一种比现有方法更简单、更动态的方法来理解源行为。
Pollutants migrate to the low permeability region by diffusion, resulting in the relationship between concentration and depth, which can be used as evidence for the decay of concentration with time caused by source decay. Based on the transmission of spreadsheet tool, this paper is used to generate source-history conjectures in line with profiles, and to fit the obtained soil concentration and depth data from a site in southern China. The source history inference generated by this tool is similar to the source history inference generated by using more intensive analysis or numerical inverse modeling methods. This includes identifying a constant source history at the location of dense non-aqueous liquids(or suspected ones) and a declining source history at the location of source isolation or attenuation. This modeling tool provides a simpler and more dynamic way to understand source behavior than existing methods.
Pollutants migrate to the low permeability region by diffusion, resulting in the relationship between concentration and depth, which can be used as evidence for the decay of concentration with time caused by source decay. Based on the transmission of spreadsheet tool, this paper is used to generate source-history conjectures in line with profiles, and to fit the obtained soil concentration and depth data from a site in southern China. The source history inference generated by this tool is similar to the source history inference generated by using more intensive analysis or numerical inverse modeling methods. This includes identifying a constant source history at the location of dense non-aqueous liquids(or suspected ones) and a declining source history at the location of source isolation or attenuation. This modeling tool provides a simpler and more dynamic way to understand source behavior than existing methods.
引文
[1]Adamson, D. T., Chapman, S. W., Farhat, S. K., Parker,B. L., deBlanc, P.,&Newell, C. J.(2015).Characterization and source history modeling using low-k zone profiles at two source areas.Groundwater Monitoring&Remediation. doi:10.1111/gwmr.12090.
[2]Newell, C. J.,&Adamson, D. T.(2005). Planning-level source decay models to evaluate impact of source depletion on remediation time frame. Remediation, 15, 27–47.
[3]McGuire, T. M., Newell, C. J., Looney, B. B., Vangelas,K. M.,&Sink, C. H.(2004). Historical analysis of monitored natural attenuation:A survey of 191 chlorinated solvent sites and 45 solvent plumes. Remediation, 15(1), 99–112.
[4]David T. Adamson, Steven W. Chapman, Shahla K. Farhat,.Beth L. Parker, Phillip C. deBlanc, Charles J. Newell.(2015).Simple Modeling Tool for Reconstructing Source History Using High Resolution Contaminant Profiles From Low-k Zones.Remediation DOI:10.1002/rem
[5]Parker, B. L., Chapman, S. W.,&Guilbeault, M. A.(2008). Plume persistence caused by back diffusion from thin clay layers in a sand aquifer following TCE source-zone hydraulic isolation. Journal of Contaminant Hydrology, 102,86–104.
[2]Newell, C. J.,&Adamson, D. T.(2005). Planning-level source decay models to evaluate impact of source depletion on remediation time frame. Remediation, 15, 27–47.
[3]McGuire, T. M., Newell, C. J., Looney, B. B., Vangelas,K. M.,&Sink, C. H.(2004). Historical analysis of monitored natural attenuation:A survey of 191 chlorinated solvent sites and 45 solvent plumes. Remediation, 15(1), 99–112.
[4]David T. Adamson, Steven W. Chapman, Shahla K. Farhat,.Beth L. Parker, Phillip C. deBlanc, Charles J. Newell.(2015).Simple Modeling Tool for Reconstructing Source History Using High Resolution Contaminant Profiles From Low-k Zones.Remediation DOI:10.1002/rem
[5]Parker, B. L., Chapman, S. W.,&Guilbeault, M. A.(2008). Plume persistence caused by back diffusion from thin clay layers in a sand aquifer following TCE source-zone hydraulic isolation. Journal of Contaminant Hydrology, 102,86–104.