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A study on the hydraulic and pollutant removal performance of bioretention systems using plants and oyster shells.

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Title: A study on the hydraulic and pollutant removal performance of bioretention systems using plants and oyster shells.
Authors: Luo, Yue1 (AUTHOR), Fu, Tengfei2 (AUTHOR), Dong, Yange1 (AUTHOR), Sun, Xiaoxiao1 (AUTHOR), Han, Yangyang1 (AUTHOR), Liu, Chunjing1 (AUTHOR), Xie, Wenxia1 (AUTHOR) xwx080312@163.com
Source: Journal of Environmental Management. Mar2026, Vol. 402, pN.PAG-N.PAG. 1p.
Subjects: Oyster shell, Nitrogen removal (Sewage purification), Rain gardens, Microbial communities, Organic compounds removal (Sewage purification), Permeability measurement, Urban runoff management
Abstract: Bioretention systems are commonly employed in urban stormwater runoff treatments because of the synergistic effects of plants, fillers, and microorganisms. Conventional bioretention systems often face challenges posed by stringent plant requirements and the risk of media failure. Therefore, this study selected drought and flood-tolerant Chlorophytum comosum 'Green' (spider plant) and porous oyster shells fillers to establish modified bioretention systems. The systems operated continuously for 197 days to investigate their comprehensive performance under varying pollutant loads. Results indicated that the C. comosum- oyster shell system (with 20% oyster shell particles) exhibited significantly higher permeability coefficients and retention rates than the systems without plants or oyster shells (p < 0.05). During the low-load influent stage, the system achieved removal rates exceeding 90% for ammonia nitrogen (NH 4 +-N), nitrate nitrogen (NO 3 −-N), and total nitrogen (TN). Furthermore, its chemical oxygen demand (COD) removal performance excelled that of conventional bioretention systems under all influent loading conditions. A significant positive correlation was observed between the total biomass of C. comosum and the nitrogen removal efficiency of the system (p < 0.05). The synergistic effect of plants and oyster shells notably increased the relative abundance of functional microbial communities involved in nitrogen and phosphorus transformation, including Nitrospira , Thauera , and Bacillus. Taken together, the combined application of C. comosum and oyster shell fillers can simultaneously enhance the hydraulic characteristics and pollutant removal performance of bioretention systems, providing new insights into urban runoff pollution control and sustainable water resource management. [Display omitted] • Oyster shell fillers promoted plant growth in bioretention systems. • Plants and oyster shell fillers enhanced both permeability and retention performance. • Chlorophytum comosum -oyster shell combination promoted both nitrogen and COD removal. • Chlorophytum comosum -oyster shell internation enhanced the biodegradation capacity. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Environmental Management is the property of Academic Press Inc. 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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DbLabel: Engineering Source
An: 192227716
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  Label: Title
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  Data: A study on the hydraulic and pollutant removal performance of bioretention systems using plants and oyster shells.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Luo%2C+Yue%22&quot;&gt;Luo, Yue&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Fu%2C+Tengfei%22&quot;&gt;Fu, Tengfei&lt;/searchLink&gt;&lt;relatesTo&gt;2&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Dong%2C+Yange%22&quot;&gt;Dong, Yange&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Sun%2C+Xiaoxiao%22&quot;&gt;Sun, Xiaoxiao&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Han%2C+Yangyang%22&quot;&gt;Han, Yangyang&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Liu%2C+Chunjing%22&quot;&gt;Liu, Chunjing&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Xie%2C+Wenxia%22&quot;&gt;Xie, Wenxia&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;i&gt; xwx080312@163.com&lt;/i&gt;
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Journal+of+Environmental+Management%22&quot;&gt;Journal of Environmental Management&lt;/searchLink&gt;. Mar2026, Vol. 402, pN.PAG-N.PAG. 1p.
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  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Oyster+shell%22&quot;&gt;Oyster shell&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Nitrogen+removal+%28Sewage+purification%29%22&quot;&gt;Nitrogen removal (Sewage purification)&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Rain+gardens%22&quot;&gt;Rain gardens&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Microbial+communities%22&quot;&gt;Microbial communities&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Organic+compounds+removal+%28Sewage+purification%29%22&quot;&gt;Organic compounds removal (Sewage purification)&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Permeability+measurement%22&quot;&gt;Permeability measurement&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Urban+runoff+management%22&quot;&gt;Urban runoff management&lt;/searchLink&gt;
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Bioretention systems are commonly employed in urban stormwater runoff treatments because of the synergistic effects of plants, fillers, and microorganisms. Conventional bioretention systems often face challenges posed by stringent plant requirements and the risk of media failure. Therefore, this study selected drought and flood-tolerant Chlorophytum comosum &#39;Green&#39; (spider plant) and porous oyster shells fillers to establish modified bioretention systems. The systems operated continuously for 197 days to investigate their comprehensive performance under varying pollutant loads. Results indicated that the C. comosum- oyster shell system (with 20% oyster shell particles) exhibited significantly higher permeability coefficients and retention rates than the systems without plants or oyster shells (p &lt; 0.05). During the low-load influent stage, the system achieved removal rates exceeding 90% for ammonia nitrogen (NH 4 +-N), nitrate nitrogen (NO 3 −-N), and total nitrogen (TN). Furthermore, its chemical oxygen demand (COD) removal performance excelled that of conventional bioretention systems under all influent loading conditions. A significant positive correlation was observed between the total biomass of C. comosum and the nitrogen removal efficiency of the system (p &lt; 0.05). The synergistic effect of plants and oyster shells notably increased the relative abundance of functional microbial communities involved in nitrogen and phosphorus transformation, including Nitrospira , Thauera , and Bacillus. Taken together, the combined application of C. comosum and oyster shell fillers can simultaneously enhance the hydraulic characteristics and pollutant removal performance of bioretention systems, providing new insights into urban runoff pollution control and sustainable water resource management. [Display omitted] • Oyster shell fillers promoted plant growth in bioretention systems. • Plants and oyster shell fillers enhanced both permeability and retention performance. • Chlorophytum comosum -oyster shell combination promoted both nitrogen and COD removal. • Chlorophytum comosum -oyster shell internation enhanced the biodegradation capacity. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: &lt;i&gt;Copyright of Journal of Environmental Management is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder&#39;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.&lt;/i&gt; (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jenvman.2026.129130
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Oyster shell
        Type: general
      – SubjectFull: Nitrogen removal (Sewage purification)
        Type: general
      – SubjectFull: Rain gardens
        Type: general
      – SubjectFull: Microbial communities
        Type: general
      – SubjectFull: Organic compounds removal (Sewage purification)
        Type: general
      – SubjectFull: Permeability measurement
        Type: general
      – SubjectFull: Urban runoff management
        Type: general
    Titles:
      – TitleFull: A study on the hydraulic and pollutant removal performance of bioretention systems using plants and oyster shells.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Luo, Yue
      – PersonEntity:
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            NameFull: Fu, Tengfei
      – PersonEntity:
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            NameFull: Dong, Yange
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            NameFull: Sun, Xiaoxiao
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            NameFull: Han, Yangyang
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            NameFull: Liu, Chunjing
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            NameFull: Xie, Wenxia
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            – D: 15
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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            – Type: issn-print
              Value: 03014797
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            – Type: volume
              Value: 402
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            – TitleFull: Journal of Environmental Management
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