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A model to evaluate internal acid neutralization resistance to soil extraction

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Title: A model to evaluate internal acid neutralization resistance to soil extraction
Authors: Ma, Jun1 jma@craworld.com, Jennings, Aaron A.2 aaj2@po.cwru.edu
Source: Environmental Modelling & Software. May2008, Vol. 23 Issue 5, p663-669. 7p.
Subject Terms: *Environmental sciences, *Soil pollution, *Heavy metals & the environment, *Acid neutralizing capacity, *Environmental impact analysis, Environmental monitoring software, Simulation methods & models
Abstract: Soils aggregates that have been contaminated for a long time often sequester contaminants deep within their internal pore structure. This form of heavy metal sequestering is common in the brownfield soils of Cleveland, Ohio, but may be found in the soils of many of the world''s industrial areas. Sequestered contamination can be difficult to analyze with conventional extraction methods because the extractant strength and extraction contact time may not be sufficient to release this portion of the contamination. The model AGGANCi may be used to determine if extractant strength and contact time are sufficient to overcome the internal acid neutralizing capacity of soil aggregates, and mobilize sequestered contaminants. A companion model (SAM&BSD) may then be used to determine if there is sufficient time for the mobilized contaminant to migrate out into the bulk extraction liquid where concentrations are measured. Both AGGANCi and SAM&BSD are formulated to examine contaminant transport at the soil aggregate scale, but both are intended to help improve the quality of data used in models applied at much larger scales to evaluate the environmental impacts of heavy metal contamination. [Copyright &y& Elsevier]
Copyright of Environmental Modelling & Software is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A model to evaluate internal acid neutralization resistance to soil extraction
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  Data: <searchLink fieldCode="AR" term="%22Ma%2C+Jun%22">Ma, Jun</searchLink><relatesTo>1</relatesTo><i> jma@craworld.com</i><br /><searchLink fieldCode="AR" term="%22Jennings%2C+Aaron+A%2E%22">Jennings, Aaron A.</searchLink><relatesTo>2</relatesTo><i> aaj2@po.cwru.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22Environmental+Modelling+%26+Software%22">Environmental Modelling & Software</searchLink>. May2008, Vol. 23 Issue 5, p663-669. 7p.
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  Data: *<searchLink fieldCode="DE" term="%22Environmental+sciences%22">Environmental sciences</searchLink><br />*<searchLink fieldCode="DE" term="%22Soil+pollution%22">Soil pollution</searchLink><br />*<searchLink fieldCode="DE" term="%22Heavy+metals+%26+the+environment%22">Heavy metals & the environment</searchLink><br />*<searchLink fieldCode="DE" term="%22Acid+neutralizing+capacity%22">Acid neutralizing capacity</searchLink><br />*<searchLink fieldCode="DE" term="%22Environmental+impact+analysis%22">Environmental impact analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+monitoring+software%22">Environmental monitoring software</searchLink><br /><searchLink fieldCode="DE" term="%22Simulation+methods+%26+models%22">Simulation methods & models</searchLink>
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  Data: Soils aggregates that have been contaminated for a long time often sequester contaminants deep within their internal pore structure. This form of heavy metal sequestering is common in the brownfield soils of Cleveland, Ohio, but may be found in the soils of many of the world''s industrial areas. Sequestered contamination can be difficult to analyze with conventional extraction methods because the extractant strength and extraction contact time may not be sufficient to release this portion of the contamination. The model AGGANCi may be used to determine if extractant strength and contact time are sufficient to overcome the internal acid neutralizing capacity of soil aggregates, and mobilize sequestered contaminants. A companion model (SAM&BSD) may then be used to determine if there is sufficient time for the mobilized contaminant to migrate out into the bulk extraction liquid where concentrations are measured. Both AGGANCi and SAM&BSD are formulated to examine contaminant transport at the soil aggregate scale, but both are intended to help improve the quality of data used in models applied at much larger scales to evaluate the environmental impacts of heavy metal contamination. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Environmental Modelling & Software is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.envsoft.2007.08.004
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Soil pollution
        Type: general
      – SubjectFull: Heavy metals & the environment
        Type: general
      – SubjectFull: Acid neutralizing capacity
        Type: general
      – SubjectFull: Environmental impact analysis
        Type: general
      – SubjectFull: Environmental monitoring software
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      – SubjectFull: Simulation methods & models
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      – TitleFull: A model to evaluate internal acid neutralization resistance to soil extraction
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            NameFull: Ma, Jun
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              Text: May2008
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              Y: 2008
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