Evaluation of a sand filter material for road runoff treatment– pilot-scale field trial focused on copper and zinc removal

Hallberg, Magnus; Renman, Agnieszka; Berndtsson, Liselott; Renman, Gunno

doi:10.2166/wpt.2022.091

Cited by 3 publications

(3 citation statements)

References 35 publications

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“…In alignment with these findings, this study achieved a comparable 17% TN removal. Sand, frequently applied for stormwater treatment, particularly in countries like Sweden and Australia, was reported to have high nutrient removal, superior suspended solids removal, and heavy metals removal such as Cu and Zn [31,32]. The results of this study for PS were consistent with these findings, achieving a TSS removal efficiency of 92% and a TN removal efficiency of 26%.…”

Section: Performance Evaluation Of Filter Mediasupporting

confidence: 84%

Performance Evaluation of Various Filter Media for Multi-Functional Purposes to Urban Constructed Wetlands

Vispo,

Geronimo,

Jeon

et al. 2023

Sustainability

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The escalating demand for innovative solutions is driven by the challenges posed by water quality degradation and the pervasive impacts of climate change. As such, this study evaluated the performance of filter media to mitigate these challenges through multi-functional applications in urban constructed wetlands (UCWs). Column testing of organic filter media, including biochar (BC), woodchip (WC), anthracite (AT), and activated carbon (AC), as well as inorganic filter media, such as ceramic balls (CB), basalt (BS), and porous sand (PS), with synthetic stormwater runoff influent was conducted to assess their performance through water quality parameters and Scanning Electron Microscopy with Energy Dispersive X-ray (SEM-EDX) analysis for carbon storage potential. Among the media tested, AC exhibited high pollutant removal efficiencies amounting to 84%, 54%, 56%, and 44% for total suspended solids (TSS), chemical oxygen demand (COD), total nitrogen (TN), and total phosphorus (TP), respectively. For inorganic media, PS had the highest TSS and TN removal, whereas BS exhibited the highest COD and TP removal. Overall performance rating revealed that AC and BS, despite their efficient pollutant removal, are associated with higher costs, resulting in a lower ranking compared to AT and PS. SEM-EDX analysis identified PS and AC as standout media for potential carbon storage, attributed to their extensive surface areas and pore structures providing abundant adsorption sites. The results from this study highlighted the potential applications of various filter media in UCW designs with the aim of achieving carbon neutrality and sustainable urban development.

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Section: Performance Evaluation Of Filter Mediasupporting

confidence: 84%

Performance Evaluation of Various Filter Media for Multi-Functional Purposes to Urban Constructed Wetlands

Vispo,

Geronimo,

Jeon

et al. 2023

Sustainability

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show abstract

“…Parameters Unit Canada (Celis-Salgado et al, 2008;Fournier, 2021) United States (Malina et al, 2005) Norway (Kjensmo, 1997) Sweden (Hallberg & Renman, 2008) Germany (Hilliges et al, 2017) US EPA criteria Despite sodium chloride having a higher temperature threshold than calcium chloride and magnesium chloride, it remains the preferred salt for road de-icing because of its affordability, abundance, ease of extraction, storage and distribution (Szklarek et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Runoff water loaded with road de‐icing salts: Occurrence, environmental impact and treatment processes

Gardeshi

Arab

Benguit

et al. 2023

Water & Environment J

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To ensure road safety during winter, it is necessary to use de‐icing salts. However, the detrimental effects of these salts on aquatic ecosystems, vegetation, lakes, ground and surface water, and soils have become a major concern in recent years. This review aims to discuss the adverse environmental impact of using de‐icing salts on the environment and explore current conventional methods used for managing and treating runoff water. Additionally, desalination techniques in terms of their effectiveness and energy requirements have been discussed. By comparing energy costs and considering the salinity levels of runoff water containing de‐icing salts, electrodialysis as a potential technique is introduced to be combined with conventional approaches for removing and recovering salt from runoff water loaded from road de‐icing salt.

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“…Therefore, we anticipated that the use of a mortar layer would decrease the heavy metal loading onto the Na-Zeolite adsorbent layer. To the best of our knowledge, this is the first pilot-scale field study using a filter comprising mortar and Na-zeolite, though research has been conducted for a swale [37], coagulation and filtration systems [38], wetlands [39][40][41][42], bioretention [43], a biochar and woodchip bioreactor [44], a filter of granular activated carbon, anthracite, and sand [45], and a sand filter [46].…”

Section: Introductionmentioning

confidence: 99%

The Pilot Study of a Dual-Media Filter Consisting of Mortar and Modified Zeolite for Removing Heavy Metals from Expressway Stormwater Runoff

Kim,

2023

Water

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Stormwater runoff from expressways generally has high concentrations of heavy metals. However, the heavy metal removal of conventional sand filters is low, so a better alternative is required. In this study, several inexpensive materials were tested for their heavy metal adsorption, and the performances of the selected materials were evaluated via field tests. The results of laboratory experiments showed that the Cu adsorption capacity followed the order of Na-zeolite > zeolite > biochar > granular ferric hydroxide > sand ≥ orchid stone. The performance of a pilot-scale dual-media filter filled with Na-zeolite and mortar granules was monitored for four rainfall events at an expressway site, and was compared to that of a sand filter. Both filters showed similar event mean concentration (EMC) removal for BOD, COD, TOC, and T-N, without a notable decrease in hydraulic conductivity. However, the removal of T-P, Cu, Zn, Cr, Ni, and Fe by the dual-media filter was 37.6–74.8%, 59.1–90.1%, 84.9–99.7%, 100.0%, 100.0%, and 78.7–94.4%, respectively, which was up to 4.5 times of that of the sand filter. In addition, it was stable regardless of the influent EMCs. Overall, we showed that the dual-media filter is excellent in heavy metal removal from stormwater runoff, with negligible clogging.

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Evaluation of a sand filter material for road runoff treatment– pilot-scale field trial focused on copper and zinc removal

Cited by 3 publications

References 35 publications

Performance Evaluation of Various Filter Media for Multi-Functional Purposes to Urban Constructed Wetlands

Performance Evaluation of Various Filter Media for Multi-Functional Purposes to Urban Constructed Wetlands

Runoff water loaded with road de‐icing salts: Occurrence, environmental impact and treatment processes

The Pilot Study of a Dual-Media Filter Consisting of Mortar and Modified Zeolite for Removing Heavy Metals from Expressway Stormwater Runoff

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