Evaluation of Concentration Distribution and Settling Efficiency of Mine Drainage Precipitate Through a New Column Settling Experiment.

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Title: Evaluation of Concentration Distribution and Settling Efficiency of Mine Drainage Precipitate Through a New Column Settling Experiment.
Authors: Lee, Dong-Kil1 (AUTHOR) ldk@kigam.re.kr, Cheong, Youngwook1 (AUTHOR), Ji, Sangwoo1 (AUTHOR), Yim, Giljae1 (AUTHOR)
Source: Mine Water & the Environment. Dec2025, Vol. 44 Issue 4, p765-776. 12p.
Subject Terms: *Mine drainage, *Turbidity, *Sedimentation & deposition, *Suspended solids, *Water purification, *Sedimentation analysis, Settlement of structures
Abstract: The conventional settling column test, commonly employed to assess the sedimentation characteristics of mine drainage precipitates, provides valuable data but is constrained by its reliance on batch sampling and discontinuous measurement, which limits the ability to observe continuous settling dynamics. To address this limitation, this study introduces a novel real-time measurement system for continuous observation of precipitate behavior within a settling column. This innovative system employs real-time turbidity measurements to provide a detailed temporal and spatial distribution of total suspended solids (TSS) within the column. By capturing the dynamic changes in TSS over time, the method enables precise identification of the hindered settling zone and allows for the prediction of concentration trends within the column. The study also evaluates percent removal efficiency and overflow rates at various column depths, revealing a high settling velocity within the hindered settling region and identifying the optimal depth range for achieving efficient overflow conditions. This advanced experimental approach significantly enhances the understanding of sedimentation processes in settling ponds. Its applications extend beyond mine drainage treatment, offering valuable insights for water treatment facilities, mining operations, and various industrial processes where sedimentation plays a critical role. [ABSTRACT FROM AUTHOR]
Copyright of Mine Water & the Environment is the property of Springer Nature 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: Evaluation of Concentration Distribution and Settling Efficiency of Mine Drainage Precipitate Through a New Column Settling Experiment.
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  Data: <searchLink fieldCode="JN" term="%22Mine+Water+%26+the+Environment%22">Mine Water & the Environment</searchLink>. Dec2025, Vol. 44 Issue 4, p765-776. 12p.
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  Data: *<searchLink fieldCode="DE" term="%22Mine+drainage%22">Mine drainage</searchLink><br />*<searchLink fieldCode="DE" term="%22Turbidity%22">Turbidity</searchLink><br />*<searchLink fieldCode="DE" term="%22Sedimentation+%26+deposition%22">Sedimentation & deposition</searchLink><br />*<searchLink fieldCode="DE" term="%22Suspended+solids%22">Suspended solids</searchLink><br />*<searchLink fieldCode="DE" term="%22Water+purification%22">Water purification</searchLink><br />*<searchLink fieldCode="DE" term="%22Sedimentation+analysis%22">Sedimentation analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Settlement+of+structures%22">Settlement of structures</searchLink>
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  Data: The conventional settling column test, commonly employed to assess the sedimentation characteristics of mine drainage precipitates, provides valuable data but is constrained by its reliance on batch sampling and discontinuous measurement, which limits the ability to observe continuous settling dynamics. To address this limitation, this study introduces a novel real-time measurement system for continuous observation of precipitate behavior within a settling column. This innovative system employs real-time turbidity measurements to provide a detailed temporal and spatial distribution of total suspended solids (TSS) within the column. By capturing the dynamic changes in TSS over time, the method enables precise identification of the hindered settling zone and allows for the prediction of concentration trends within the column. The study also evaluates percent removal efficiency and overflow rates at various column depths, revealing a high settling velocity within the hindered settling region and identifying the optimal depth range for achieving efficient overflow conditions. This advanced experimental approach significantly enhances the understanding of sedimentation processes in settling ponds. Its applications extend beyond mine drainage treatment, offering valuable insights for water treatment facilities, mining operations, and various industrial processes where sedimentation plays a critical role. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Mine Water & the Environment is the property of Springer Nature 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: 10.1007/s10230-025-01056-x
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      – Code: eng
        Text: English
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        PageCount: 12
        StartPage: 765
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      – SubjectFull: Mine drainage
        Type: general
      – SubjectFull: Turbidity
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      – SubjectFull: Sedimentation & deposition
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      – SubjectFull: Suspended solids
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      – SubjectFull: Water purification
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      – SubjectFull: Sedimentation analysis
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      – SubjectFull: Settlement of structures
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      – TitleFull: Evaluation of Concentration Distribution and Settling Efficiency of Mine Drainage Precipitate Through a New Column Settling Experiment.
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            NameFull: Lee, Dong-Kil
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            NameFull: Cheong, Youngwook
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              M: 12
              Text: Dec2025
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              Y: 2025
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