Heavy metal fates in laboratory bioretention systems
Abstract
Key to managing heavy metals in bioretention is to understand their fates in bioretention facilities. In this study, pot prototypes filled with bioretention media were built to simulate the conditions of natural growth of plants. Synthetic runoff with different heavy metal loadings (copper, cadmium, lead, and zinc) was periodically applied. Metal accumulations in tissues of grasses -Panicum virgatum, Kentucky-31, and Bromus ciliatus, were investigated after 230d of growth and multiple runoff treatment events. After 183d of periodic runoff application, the concentrations of Zn, Cu, Pb and Cd with low and high loadings had the same trends in the plant tissues, Zn>Cu>Pb>Cd, following the trend of the input metal concentrations. The fates of input metals were 88-97% captured in soil media, 2.0-11.6% not captured by bioretention media, and 0.5-3.3% accumulated in plants. Compared to the metals retained by the soil, the percentages of input metals taken up by plants were relatively low due to the low plant biomass produced in this study. Greater biomass density would be required for the vegetation to have a valuable impact in prolonging the lifetime of a bioretention cell.
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Vegetation contributes to total metal removal in stormwater bioretention systems.
“The vegetation has been shown to contribute to the total metal removal in stormwater bioretention systems (Muthanna et al., 2007; Sun and Davis, 2007; Read et al., 2008).”
From Dissolved metal adsorption capacities and fractionation in filter materials for use in stormwater bioretention facilities (2019) · cites this paper as Sun and Davis, 2007
Some toxic metals may be removed through bioaccumulation through plant uptake that is dependent upon plant density and type and hydraulic residence time.
“Others may be removed through bioaccumulation through plant uptake that is depen dent upon plant density and type and hydraulic residence time (Johnson et al., 2003; Sun and Davis, 2007).”
From Review of emerging contaminants in green stormwater infrastructure: antibiotic resistance genes, microplastics, tire wear particles, PFAS, and temperature (2024) · cites this paper as Sun and Davis, 2007
Cited by
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Urban Stormwater Treatment Using Bioretention
Trowsdale, S. A., & Simcock, R. (2011) · Journal of Hydrology · doi:10.1016/j.jhydrol.2010.11.023 · Cited by 235 · see citing works
Gao, Z., Zhang, Q., Li, J., Wang, Y., Dzakpasu, M., & Wang, X. C. (2023) · Journal of Environmental Management · doi:10.1016/j.jenvman.2023.117976 · Cited by 82 · see citing works
Bodus, B., O'Malley, K., Dieter, G., Gunawardana, C., & McDonald, W. (2024) · Science of The Total Environment · doi:10.1016/j.scitotenv.2023.167195 · Cited by 76 · see citing works
Al-Ameri, M., Hatt, B., Le Coustumer, S., Fletcher, T., Payne, E., & Deletic, A. (2018) · Journal of Hydrology · doi:10.1016/j.jhydrol.2018.03.027 · Cited by 75 · see citing works
Søberg, L. C., Winston, R., Viklander, M., & Blecken, G.-T. (2019) · Water Research X · doi:10.1016/j.wroa.2019.100032 · Cited by 47 · see citing works
“The vegetation has been shown to contribute to the total metal removal in stormwater bioretention systems (Muthanna et al., 2007; Sun and Davis, 2007; Read et al., 2008).”
Background
- Authors
- Sun, X., & Davis, A. P.
- Affiliations
- University of Maryland, College Park (US)
- Corresponding author
- Davis, Allen P.
- Venue
- Chemosphere
- Publisher
- Elsevier BV
- Published
- 2007-01
- Volume
- 66
- Issue
- 9
- Pages
- 1601-1609
- ISSN
- 0045-6535 (ISSN-L)
- OpenAlex
- W2057555501
- Cited by
- 179
- References
- 0
- Citations by year
- 2026: 5 · 2025: 11 · 2024: 7 · 2023: 7 · 2022: 10 · 2021: 18 · 2020: 14 · 2019: 12 · 2018: 17 · 2017: 13 · 2016: 7 · 2015: 14 · 2014: 13 · 2013: 6 · 2012: 3
- FWCI
- 4.59
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Chemosphere (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Environmental Engineering › Urban Stormwater Management Solutions
- Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
- Physical Sciences › Environmental Science › Pollution › Pharmaceutical and Antibiotic Environmental Impacts
- Keywords
- bioretention, heavy metals, stormwater runoff, metal fate, plant metal uptake, switchgrass, Kentucky 31, copper, cadmium, lead, zinc, urban stormwater management
- MeSH terms
- Poaceae, Soil, Spectrophotometry, Atomic, Water Pollutants, Chemical, Water Pollution, Metals, Heavy
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