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61,005 resultsShowing papers similar to Microplastic Removal from Road Stormwater Runoff using Lab-scale Bioretention Cell
ClearImproving stormwater quality for microplastic (25 – 106 µm) using a bioretention cell
This study evaluated how a bioretention cell (a vegetated stormwater filter system) removes small microplastic particles from stormwater runoff. Bioretention systems show promise as low-cost, nature-based approaches to capturing microplastics before they enter streams and drinking water supplies.
Microplastics removal from stormwater runoff by bioretention cells: A review
This review examines the potential of bioretention cells, a type of green infrastructure, to remove microplastics from stormwater runoff. Researchers analyzed how these systems filter microplastics through soil media and vegetation and identified the key design parameters that affect removal efficiency. The study suggests that bioretention cells offer a promising nature-based solution for reducing microplastic loads entering waterways from urban areas.
Bioretention cells remove microplastics from urban stormwater
A 2-year field study characterized microplastics in urban stormwater runoff and measured how effectively a bioretention cell (a low-impact development infrastructure) removed them. The bioretention cell significantly reduced microplastic concentrations in stormwater, demonstrating its potential as a mitigation strategy for urban runoff-driven microplastic pollution.
Microplastics: The Occurrence in Stormwater Runoff and the Effectiveness of Bioretention Systems for Removal
Researchers measured microplastic concentrations in stormwater runoff and tested the removal efficiency of bioretention systems including green roofs, bioswales, and bioretention cells, finding that these green infrastructure systems can significantly reduce microplastic loads before they reach surface waters. The study provides baseline data on stormwater as a microplastic transport pathway and evaluates a nature-based treatment solution.
Microplastics Characterization in Stormwater: Pavement Source Evaluation and Treatment Efficiency of a Bioretention Cell
Researchers characterised microplastics in stormwater from pavement sources and evaluated the treatment efficiency of a bioretention cell, finding that pavement surfaces contribute substantially to microplastic loading and that bioretention can reduce particle concentrations.
Analysis of Bioretention Capability in Removing Microplastic Particles from Stormwater
This study tested the ability of bioretention systems (vegetated stormwater gardens) to remove microplastic particles from stormwater, finding effective removal across multiple particle sizes and types. Bioretention infrastructure shows promise as a practical tool for preventing microplastics from stormwater runoff from reaching rivers and coastal waters.
Small-Size Microplastics in Urban Stormwater Runoff are Efficiently Trapped in a Bioretention Cell
Researchers conducted a two-year field study showing that bioretention cells, a type of green stormwater infrastructure, effectively captured microplastics as small as 25 micrometers from urban runoff. The system retained over 80 percent of small microplastics, with fibers and fragments being the most commonly trapped types. The findings suggest that existing urban green infrastructure can serve double duty as a practical tool for reducing microplastic pollution in waterways.
Bioretention cells remove microplastics in the 25 – 106 micron size fraction
This study found that bioretention cells (green infrastructure stormwater filters) effectively remove microplastics in the 25 to 106 micron size range from stormwater runoff. Bioretention cells represent a promising green infrastructure approach for intercepting microplastics before they reach streams and rivers.
Removal and fate of microplastics in permeable pavements: An experimental layer-by-layer analysis
Researchers tested permeable pavements as a way to capture microplastics from urban stormwater runoff and found they retained 89% to over 99% of microplastic particles. The microplastics accumulated mainly on the pavement surface and in geotextile filter layers, preventing them from reaching natural waterways. This type of sustainable urban drainage could be an effective tool for reducing the amount of microplastics that wash off roads and into the water sources people depend on.
Innovative bioretention filters effectively remove microplastics from polluted stormwater
Researchers constructed a pilot rain garden facility with 13 bioretention filters incorporating innovative sorbent materials — waste-to-energy bottom ash, biochar, and Sphagnum peat — mixed with sandy loam and planted with salt-tolerant vegetation, then irrigated with stormwater from a highway over 48 months to evaluate microplastic removal efficiency by pyrolysis-GC/MS. They found the bioretention filters effectively removed diverse microplastic polymers from urban stormwater, with all 13 target polymers detected in inflow and variable removal efficiencies across sorbent treatments.
Occurrence and concentration of 20–100 μm sized microplastic in highway runoff and its removal in a gross pollutant trap – Bioretention and sand filter stormwater treatment train
A stormwater gross pollutant trap followed by bioretention and sand filter treatment was found to remove 20 to 100 micrometer microplastics from highway runoff in addition to larger particles, with removal efficiency dependent on particle size and treatment train configuration.
Innovative bioretention filters effectively remove microplastics from polluted stormwater
Researchers evaluated a pilot rain garden facility with 13 bioretention filters incorporating sorbent materials including waste-to-energy bottom ash, biochar, and Sphagnum peat mixed with sandy loam, testing their ability to remove microplastics from highway stormwater over 48 months using pyrolysis-GC/MS analysis. They found that the innovative filters effectively reduced microplastic concentrations across all 13 target polymers, with polyisoprene and styrene-butadiene rubber among the highest-concentration contaminants in the stormwater inflow.
Field assessment of engineered bioretention as microplastics sink through site characterization and hydrologic modeling
A field study of bioretention cells — garden-like stormwater filters used in green infrastructure — found that their soils contained 7 to 10 times more microplastics than background soils, with polypropylene and polyethylene dominating. This confirms that bioretention systems are effective at capturing microplastics from urban runoff, but it also raises questions about what happens to the accumulated plastic over time and whether it eventually leaches back into groundwater.
Plastic pollution risks in bioretention systems: a case study
Researchers investigated plastic pollution in urban stormwater bioretention systems and found these green infrastructure features both accumulate microplastics from road runoff and risk leaching plastic particles into groundwater, raising concerns about their role as pollution pathways.
Occurrence and Pathways of Microplastics in Bioretention Filters
Researchers found eleven microplastic polymer types in bioretention filter soil and stormwater samples in an urban setting, characterizing the occurrence and pathways of microplastics entering these green infrastructure systems from contaminated impervious surface runoff.
The Occurrence and Removal of Microplastics from Stormwater Using Green Infrastructure
This review examines microplastic occurrence in urban stormwater and the potential of green infrastructure — particularly bioretention systems and constructed wetlands — to capture and remove plastic particles before they reach surface water bodies.
The ability of selected filter materials in removing nutrients, metals, and microplastics from stormwater in biofilter structures
A laboratory experiment tested several filter materials in a biofilter structure for their ability to remove nutrients, metals, total suspended solids, and microplastics from roadside stormwater. The study demonstrated that ecologically based biofilter designs can capture multiple contaminant types from urban runoff.
Removal of rubber, bitumen and other microplastic particles from stormwater by a gross pollutant trap - bioretention treatment train
Researchers tested a gross pollutant trap followed by a bioretention cell as a stormwater treatment train in Australia and found it effectively removed over 95% of rubber, bitumen, and other microplastic particles larger than 100 µm, demonstrating the potential of combined treatment systems.
Concentrations and Retention Efficiency of Tire Wear Particles from Road Runoff in Bioretention Cells
Researchers assessed tire wear particle concentrations and retention efficiency in a large-scale bioretention cell and laboratory column experiments, finding particles present across all soil size fractions with higher concentrations near the inlet, and demonstrating that engineered soil bioretention columns achieved 99.6% tire wear particle retention efficiency.
The role of different sustainable urban drainage systems in removing microplastics from urban runoff: A review
Researchers reviewed how nature-based drainage systems like wetlands, bioretention gardens, and permeable pavements can filter microplastics from urban stormwater runoff. These systems capture a significant portion of plastic particles, though smaller fibers remain the hardest to remove, and standardizing detection methods is still needed to compare results globally.
Bark and biochar in horizontal flow filters effectively remove microplastics from stormwater
Researchers tested horizontal flow filters made with bark and biochar for their ability to remove microplastics from stormwater, achieving effective retention of multiple plastic types including polyamide, polyethylene, polypropylene, and polystyrene. The organic filter materials trapped the majority of particles, with performance varying by plastic type and filter composition. The study demonstrates that affordable, nature-based filter systems can be a practical solution for reducing microplastic pollution in urban stormwater runoff.
Bioswales as potential sinks for tyre wear particle pollution
Researchers investigated the role of bioswale green infrastructure in capturing tyre wear particle microplastics from road runoff, presenting data from bioswales constructed in 2010 and quantifying their effectiveness as sinks for tyre-derived microplastic pollution.
Urban stormwater microplastics – Characteristics and removal using a developed filtration system
This Finnish study tested a concrete filtration system with sand and biochar media to remove microplastics from urban stormwater runoff. Both media showed effective removal, with results suggesting that on-site stormwater filtration could be a practical strategy for reducing microplastic inputs to receiving water bodies.
Permeable pavement blocks as a sustainable solution for managing microplastic pollution in urban stormwater
Researchers tested whether permeable pavement, the kind of pavement that lets water drain through it, can filter out microplastics from urban stormwater runoff. They found it can trap microplastic particles effectively, suggesting permeable pavement could be a practical tool for reducing the amount of microplastics that wash into rivers and oceans from city streets.