View in EDS

Characterizing the hydraulic and transport properties of a constructed coarse tailings sand aquifer.

Saved in:
Bibliographic Details
Title: Characterizing the hydraulic and transport properties of a constructed coarse tailings sand aquifer.
Authors: Sutton, Owen F.1 (AUTHOR) ofsutton@uwaterloo.ca, Kessel, Eric D.1,2 (AUTHOR), Gharedaghloo, Behrad1,2 (AUTHOR), Price, Jonathan S.1 (AUTHOR)
Source: Journal of Contaminant Hydrology. Aug2022, Vol. 249, pN.PAG-N.PAG. 1p.
Subjects: Oil sands, Aquifers, Manufacturing processes, Hydraulic conductivity, Sand
Abstract: Millions of tonnes of coarse tailings sand are produced every year as a byproduct of the bitumen extraction process in the Athabasca Oil Sands Region. These tailings materials contain residual quantities of mobile solutes, which can be transported through groundwater to downgradient terrestrial and aquatic ecosystems. The anticipated ubiquity of coarse tailings sand on the post-mined landscape necessitates the characterization of its hydraulic and transport properties. Hydraulic conductivity and dispersivity was evaluated at multiple scales, and included the first field-scale tracer test conducted in a tailings sand aquifer. Average hydraulic conductivity derived using laboratory cores, single-well response tests, and the tracer test were 3.2 m d−1, 2.9 m d−1, and 3.4 m d−1, respectively. These measurements demonstrated close agreement and were consistent with expectations of a material that experiences some grain-size segregation and homogenization due to the oil sands process and the nature of deposition. The field-scale tracer test appeared to obtain the asymptotic dispersivity of the coarse tailings sand aquifer, reaching a maximum value of 0.5 m after 18 m of displacement. Coarse tailings in the oil sands that experience similar processes of segregation, settling, and deposition on the reclamation landscape could be expected to have similar hydraulic properties. • Large volumes of tailings sand must be reintegrated into the mine closure landscape. • The industrial processing and deposition of coarse tailings minimizes heterogeneity. • Multiple methods demonstrated an average hydraulic conductivity of 1.2 × 10−5 m/s. • Moment analysis of natural gradient tracer test indicated a dispersivity of 0.49 m. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Contaminant Hydrology 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.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 158480962
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Characterizing the hydraulic and transport properties of a constructed coarse tailings sand aquifer.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Sutton%2C+Owen+F%2E%22">Sutton, Owen F.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ofsutton@uwaterloo.ca</i><br /><searchLink fieldCode="AR" term="%22Kessel%2C+Eric+D%2E%22">Kessel, Eric D.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gharedaghloo%2C+Behrad%22">Gharedaghloo, Behrad</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Price%2C+Jonathan+S%2E%22">Price, Jonathan S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Contaminant+Hydrology%22">Journal of Contaminant Hydrology</searchLink>. Aug2022, Vol. 249, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Oil+sands%22">Oil sands</searchLink><br /><searchLink fieldCode="DE" term="%22Aquifers%22">Aquifers</searchLink><br /><searchLink fieldCode="DE" term="%22Manufacturing+processes%22">Manufacturing processes</searchLink><br /><searchLink fieldCode="DE" term="%22Hydraulic+conductivity%22">Hydraulic conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Sand%22">Sand</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Millions of tonnes of coarse tailings sand are produced every year as a byproduct of the bitumen extraction process in the Athabasca Oil Sands Region. These tailings materials contain residual quantities of mobile solutes, which can be transported through groundwater to downgradient terrestrial and aquatic ecosystems. The anticipated ubiquity of coarse tailings sand on the post-mined landscape necessitates the characterization of its hydraulic and transport properties. Hydraulic conductivity and dispersivity was evaluated at multiple scales, and included the first field-scale tracer test conducted in a tailings sand aquifer. Average hydraulic conductivity derived using laboratory cores, single-well response tests, and the tracer test were 3.2 m d−1, 2.9 m d−1, and 3.4 m d−1, respectively. These measurements demonstrated close agreement and were consistent with expectations of a material that experiences some grain-size segregation and homogenization due to the oil sands process and the nature of deposition. The field-scale tracer test appeared to obtain the asymptotic dispersivity of the coarse tailings sand aquifer, reaching a maximum value of 0.5 m after 18 m of displacement. Coarse tailings in the oil sands that experience similar processes of segregation, settling, and deposition on the reclamation landscape could be expected to have similar hydraulic properties. • Large volumes of tailings sand must be reintegrated into the mine closure landscape. • The industrial processing and deposition of coarse tailings minimizes heterogeneity. • Multiple methods demonstrated an average hydraulic conductivity of 1.2 × 10−5 m/s. • Moment analysis of natural gradient tracer test indicated a dispersivity of 0.49 m. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Contaminant Hydrology 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=158480962
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jconhyd.2022.104047
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Oil sands
        Type: general
      – SubjectFull: Aquifers
        Type: general
      – SubjectFull: Manufacturing processes
        Type: general
      – SubjectFull: Hydraulic conductivity
        Type: general
      – SubjectFull: Sand
        Type: general
    Titles:
      – TitleFull: Characterizing the hydraulic and transport properties of a constructed coarse tailings sand aquifer.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Sutton, Owen F.
      – PersonEntity:
          Name:
            NameFull: Kessel, Eric D.
      – PersonEntity:
          Name:
            NameFull: Gharedaghloo, Behrad
      – PersonEntity:
          Name:
            NameFull: Price, Jonathan S.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 08
              Text: Aug2022
              Type: published
              Y: 2022
          Identifiers:
            – Type: issn-print
              Value: 01697722
          Numbering:
            – Type: volume
              Value: 249
          Titles:
            – TitleFull: Journal of Contaminant Hydrology
              Type: main
ResultId 1