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Wei, H., Flanagan, K., Lundy, L., Muthanna, T. M. & Viklander, M. (2023). A study of 101 organic substances in gully pot sediments accumulated over a one-year period in Stockholm, Sweden. Science of the Total Environment, 894, Article ID 165028.
Open this publication in new window or tab >>A study of 101 organic substances in gully pot sediments accumulated over a one-year period in Stockholm, Sweden
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2023 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 894, article id 165028Article in journal (Refereed) Published
Abstract [en]

Stormwater runoff is a key pathway for diffuse pollutants to enter receiving waters. Mitigating measures include pollutant substitution, restricting their release into the urban technosphere and limiting the (re-)mobilisation of substances to minimise their negative impacts on receiving waters. Gully pots (GPs) are one of the most ubiquitous urban drainage infrastructure components, providing both a drainage function and limiting the onward transport of pollutants through in-pot sedimentation processes. In this study, sediments accumulated over a one-year period were collected from 26 GPs in catchments of four land-use types in Stockholm, Sweden. Sediments were analysed for 101 organic substances from eight substance groups (hydrocarbons, polycyclic aromatic hydrocarbons, alkylphenols, polychlorinated biphenyls, phthalates, organotins, per- and polyfluoroalkyl substances and brominated fire retardants) to inform an assessment of their occurrence and net accumulation rates over a typical unit operation period. A total of 63 substances were quantified in at least one GP, with aliphatic hydrocarbons, phthalates and organotins quantified in all GP sediments, highlighting their ubiquitous use. The identification of 14 and 21 organic substances in two pedestrian/bike path GPs emphasise the contribution of non-vehicular sources to diffuse pollutant loads. Significantly higher mass accumulation rates of 4-tert-octylphenol, 4-nonylphenols, formaldehyde, dioctyltin and dibutyltin are identified in commercial catchment GPs suggesting the need to enhance source-tracing and runoff quality-control measures within catchments of this land-use type. Sediments in 25 GPs were identified with at least one substance exceeding toxicology-based threshold values, highlighting the runoff quality-control function of GPs in reducing the potential ecotoxic impacts on recipients.

Place, publisher, year, edition, pages
Elsevier, 2023
Keywords
Xenobiotics, Urban water, Emerging pollutant, Urban runoff, Gully pot, Micropollutant
National Category
Water Engineering Environmental Sciences Environmental Management
Research subject
Centre - Centre for Stormwater Management (DRIZZLE); Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-98958 (URN)10.1016/j.scitotenv.2023.165028 (DOI)001038835400001 ()37353017 (PubMedID)2-s2.0-85163511916 (Scopus ID)
Funder
Vinnova, 2016–05176
Note

Validerad;2023;Nivå 2;2023-06-28 (hanlid)

Available from: 2023-06-27 Created: 2023-06-27 Last updated: 2024-01-16Bibliographically approved
Gavrić, S., Flanagan, K., Wei, H., Österlund, H., Lundy, L. & Viklander, M. (2023). Accumulation and contamination of gully pot sediments from varied land-use types: metal loads, concentrations and speciation. Environmental Science and Pollution Research, 30, 109825-109840
Open this publication in new window or tab >>Accumulation and contamination of gully pot sediments from varied land-use types: metal loads, concentrations and speciation
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2023 (English)In: Environmental Science and Pollution Research, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 30, p. 109825-109840Article in journal (Refereed) Published
Abstract [en]

Urban stormwater typically enters sewer networks through gully pots, which allow a primary sedimentation of solids upstream of the piped network. The regular removal and disposal of retained sediment are necessary, costly and can involve environmental risks due to the contamination of sediments with substances from the urban environment such as metals. The concentrations and speciation of Cd, Cr, Cu, Ni, Pb and Zn were analysed in sediments from 26 gully pots located in different land use areas in Stockholm, Sweden. In addition, accumulation rates of both sediment and metal masses were evaluated, providing a basis for optimising maintenance practices and better understanding of impacts of characteristic urban land use types. Metal concentrations varied by at most a factor of eight between samples and were always below Swedish polluted site guidelines for less sensitive land use, with only eight samples exceeding the guideline values for Cu and Zn for sensitive land use. Sequential extraction showed Pb and Zn to be the most mobile metals. Sediment accumulation rates varied from 0.003 to 0.197 kg/m2 impermeable surface/year. Metal accumulation rates were much more variable than metal concentrations, with a factor of up to 172 between the highest and lowest rates and the highest metal accumulation rates corresponding to the lower range of mass loads in road runoff. Differences in metal concentrations, sediment or metal mass accumulations could not be solely attributed to either traffic or catchment land use. In contrast, traction grit used for winter road maintenance, which has low (but detectable) metal concentrations, is identified as a major component of gully pot sediments, with a combined effect of both moderating metal concentrations and contributing to total mass.

Place, publisher, year, edition, pages
Springer, 2023
Keywords
Urban stormwater runof, Catch basin, Metal mobility, Sediment quality assessment, Sediment accumulation, Sediment loads
National Category
Water Engineering
Research subject
Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-101514 (URN)10.1007/s11356-023-30062-1 (DOI)001078239900002 ()
Funder
Vinnova, 2016-05176
Note

Validerad;2023;Nivå 2;2023-11-14 (marisr);

Full text license: CC BY

Available from: 2023-10-02 Created: 2023-10-02 Last updated: 2024-01-16Bibliographically approved
Beryani, A., Flanagan, K., Viklander, M. & Blecken, G.-T. (2023). Datasets of a stormwater treatment train facility consisting of a gross pollutant trap and biofilters/sand filter in Sundsvall, Sweden. Svensk nationell datatjänst (SND)
Open this publication in new window or tab >>Datasets of a stormwater treatment train facility consisting of a gross pollutant trap and biofilters/sand filter in Sundsvall, Sweden
2023 (English)Data set, Primary data
Alternative title[sv]
Dataset från ett reningståg för dagvatten bestående av en grov föroreningsfälla och biofilter/sandfilter i Sundsvall, Sverige
Abstract [en]

The data were collected from a stormwater treatment train facility in Sundsvall, Sweden. The facility consists of a gross pollutant trap (GPT) followed by three parallel biofilter cells: a vegetated, chalk-amended biofilter (BFC or F1), a non-vegetated sand filter (SF or F2), and a vegetated biofilter (BF or F3).One of the objectives of our research project was to assess and monitor stormwater quality received from a major road catchment (incl. E4 highway bridge in Sundsvall) and also evaluate the performance of the various sections of the treatment train in removing organic micropollutants from the stormwater.

The file named "StormwaterRunoffQualityData_SND.csv" contains event mean concentration (EMC) data on stormwater samples collected from 8 rain events (coded by A to H) in one year between September 2020 and September 2021. The samples have been analyzed for organic micropollutants and global water quality parameters (42 parameters in total). EMCs have been mathematically generated by a Monte-Carlo simulation from measured concentrations in sub-samples collected during each event. The data elaborate on the generated distribution for each EMC with Q2.5, Q50, and Q97.5 percentiles and standard deviation from the mean. Besides, the number of detected and non-detected (censored) data of sub-samples are mentioned. The list of all pollutants and their abbreviations are included in the documentation file named "StormwaterRunoffQualityData_SND.docx". Stormwater flow data are also presented in the file "VolumeData_Stormwater_SND.csv".

The file named "TreatmentTrainQualityData_SND.csv" presents event mean concentration (EMC) data not only for the stormwater runoff quality but also for the treated stormwater in the GPT-biofilter/sand filter treatment train downstream of the catchment. In addition to the untreated stormwater runoff as the system's inflow (SW), EMCs have been presented for 4 more sampling points: GPT outflow (GPT), vegetated, chalk-amended biofilter outflow (BFC), non-vegetated sand filter (SF), and vegetated biofilter outflow (BF). For this part of the research, a total of 11 rain events (coded by A to K) were covered from Sep. 2020 until Sep. 2021. The samples have been analyzed for organic micropollutants and other conventional water quality parameters (42 parameters in total). EMCs have been mathematically generated by a Monte-Carlo simulation from measured concentrations in sub-samples collected during each event. The data present a distribution for each EMC with Q2.5, Q50, and Q97.5 percentiles and standard deviation from the mean. The number of detected and non-detected (censored) data of sub-samples is also mentioned. The list of all pollutants and their abbreviations are included in the documentation file named "TreatmentTrainQualityData_SND.docx". Flow data are also presented in the file "VolumeData_Treatment train_SND.csv".

Abstract [sv]

Uppgifterna samlades in från ett reningståg för dagvatten i Sundsvall, Sverige. Anläggningen består av en grov föroreningsfälla (GPT) följd av tre parallella biofilterceller: ett vegeterat, kritomvandlat biofilter (BFC eller F1), ett icke-vegeterat sandfilter (SF eller F2) och ett vegeterat biofilter (BF eller F3).Ett av syftena med vårt forskningsprojekt var att bedöma och övervaka dagvattenkvaliteten från ett större vägavrinningsområde (inkl. motorvägsbro E4 i Sundsvall) och även utvärdera hur de olika sektionerna av reningståget presterar när det gäller att ta bort organiska mikroföroreningar från dagvattnet.

Filen med namnet "StormwaterRunoffQualityData_SND.csv" innehåller data för händelsemedelkoncentration (EMC) på dagvattenprover som samlats in från 8 regnhändelser (kodade av A till H) under ett år mellan september 2020 och september 2021. Proverna har analyserats för organiska mikroföroreningar och globala vattenkvalitetsparametrar (42 parametrar totalt). EMC:er har matematiskt genererats av en Monte-Carlo-simulering från uppmätta koncentrationer i delprover som samlats in under varje händelse. Datan utvecklar den genererade fördelningen för varje EMC med Q2.5, Q50 och Q97.5 percentiler och standardavvikelse från medelvärdet. Dessutom nämns antalet upptäckta och icke-upptäckta (censurerade) data för delprover. En lista med alla olika föroreningar och deras förkortningar finns inkluderade i dokumentationsfilen ”StormwaterRunoffQualityData_SND.docx”.

I filen med namnet "TreatmentTrainQualityData_SND.csv" presenteras inte bara händelsemedelkoncentrationen (EMC) för dagvattenavrinningens kvalitet, utan också för det behandlade dagvattnet i reningssystemet nedströms från avrinningsområdet, vilket inkluderar en försedimenteringsanläggning (GPT) och ett sandfilter. Förutom att dagvattenavrinningen utgör systemets inflöde (SW), har händelsemedelkoncentrationen (EMC) från fyra andra provtagningspunkter också presenterats: försedimenteringsanläggningens utflöde (GPT), växtbevuxet, kritomvandlat biofilterutflöde (BFC), icke-växtbevuxet sandfilter (SF) och växtbevuxet biofilterutflöde (BF). Den här delen av undersökningen täcker in 11 regnhändelser (kodade A till K) under perioden sep 2020 och sep 2021. Proverna har analyserats för organiska mikroföroreningar och globala vattenkvalitetsparametrar (42 parametrar totalt). EMC:er har matematiskt genererats av en Monte-Carlo-simulering från uppmätta koncentrationer i delprover som samlats in under varje händelse. Datan utvecklar den genererade fördelningen för varje EMC med Q2.5, Q50 och Q97.5 percentiler och standardavvikelse från medelvärdet. Dessutom nämns antalet upptäckta och icke-upptäckta (censurerade) data för delprover. En lista med alla olika föroreningar och deras förkortningar finns inkluderade i dokumentationsfilen ” TreatmentTrainQualityData_SND.docx”.

Place, publisher, year
Svensk nationell datatjänst (SND), 2023
Keywords
Hydrocarbons, Biological contamination, Phenol, Pollution control technology, Polycyclic aromatic hydrocarbon, Biodegradable pollutant, Water pollutant, Water pollution prevention, Storm water, Stormwater runoff, Bioretention, Biofilter, Sand filter, Event mean concentration, Hydrocarbons, Biologisk förorening, Fenol, Föroreningsbekämpande teknik, Polycykliskt aromatiskt kolväte, Biologiskt nedbrytbar förorening, Vattenförorening, Förebyggande av vattenförorening, Dagvatten, Dagvattenavrinning, Bioretention, Biofilter, Sandfilter, Händelsemedelkoncentration
National Category
Water Engineering
Research subject
Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-100701 (URN)10.5878/nny1-2045 (DOI)
Available from: 2023-08-23 Created: 2023-08-23 Last updated: 2023-09-06Bibliographically approved
Mantilla, I., Flanagan, K., Broekhuizen, I., Muthanna, T. & Viklander, M. (2023). Evaluating the infiltration performance of grassed swales : Comparison between point measurements and a full-scale infiltration method: [Évaluation des performances d'infiltration d'une noue enherbée : Comparaison entre des mesures ponctuelles et une méthode d'infiltration grandeur nature]. In: : . Paper presented at 11th Novatech international conference, Lyon, France, July 3-7, 2023.
Open this publication in new window or tab >>Evaluating the infiltration performance of grassed swales : Comparison between point measurements and a full-scale infiltration method: [Évaluation des performances d'infiltration d'une noue enherbée : Comparaison entre des mesures ponctuelles et une méthode d'infiltration grandeur nature]
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2023 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Due to large spatial and temporal variations of soil properties that govern swale infiltration capacities, traditional methods for estimating saturated hydraulic conductivity (ksat) values could potentially lead to erroneous estimation of the total system infiltration capacity. To increase the knowledge of grassed swale infiltration performance and the relationship between hydraulic properties related to the spatial variation within the swale, two methods were applied to estimate ksat values: 1) point measurements using the Modified Philip Dunne (MPD) Infiltrometer, and 2) a full-scale infiltration test (FSIT). A large variation in calculated ksat values was found, ranging from 22 to 1382 mm/hr, with lower/higher values at the swale bottom, and right swale slope respectively. Infiltration point measurements, with a geometric mean of 81 mm/hr, showed higher infiltration rates than those obtained from FSIT, which yielded 34 and 22 mm/hr (for test 1 and 2 respectively). Moreover, FSIT results showed an agreement with ksat values obtained from MPD infiltrometer at the swale bottom. In addition, infiltration rates are significantly reduced as the groundwater mound gets closer to the bottom of the grassed swale.

Abstract [fr]

En raison des grandes variations spatiales et temporelles des propriétés du sol qui régissent les capacités d'infiltration des noues, les méthodes traditionnelles d'estimation des valeurs de conductivité hydraulique saturée (ksat) pourraient potentiellement conduire à une estimation erronée de la capacité d'infiltration totale du système. Afin d'accroître la connaissance des capacités d'infiltration des noues enherbées et de la relation entre les propriétés hydrauliques liées aux classes de texture du sol, deux méthodes ont été appliquées pour estimer les valeurs de ksat : 1) des mesures ponctuelles à l'aide de l'infiltromètre Philip Dunne modifié (MPD), et 2) un test d’infiltration à pleine échelle (FSIT). Une grande variation dans les valeurs calculées de ksat a été trouvée, allant de 22 à 1382 mm/h, avec des valeurs inférieures/élevées au fond de la noue et à droite de la pente de la noue respectivement. Les mesures des points d'infiltration, avec une moyenne géométrique de 81 mm/h, ont montré des taux d'infiltration plus élevés que ceux obtenus à partir du FSIT, avec 34 et 22 mm/h (pour les tests 1 et 2 respectivement). De plus, les résultats du FSIT ont montré un accord avec les valeurs de ksat obtenues au fond de la noue. De plus, les taux d'infiltration diminuent considérablement à mesure que le niveau de la nappe phréatique se rapproche du fond de la noue enherbée.

Keywords
Hydraulic conductivity, full-scale infiltration test, swale, groundwater mouding, Conductivité hydraulique, test d'infiltration à grande échelle, rigole, mouding des eaux souterraines
National Category
Water Engineering
Research subject
Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-101380 (URN)
Conference
11th Novatech international conference, Lyon, France, July 3-7, 2023
Available from: 2023-09-19 Created: 2023-09-19 Last updated: 2024-01-25Bibliographically approved
Tedoldi, D., Flanagan, K., Gavrić, S., Blecken, G.-T., Couvidat, J., Gautier, M., . . . Chatain, V. (2023). Geochemical signature of urban stormwater sediments: a France/Sweden comparison: [Signature géochimique des sédiments de bassins pluviaux : une comparaison France/Suède]. In: : . Paper presented at 11th Novatech international conference, Lyon, France, July 3-7, 2023.
Open this publication in new window or tab >>Geochemical signature of urban stormwater sediments: a France/Sweden comparison: [Signature géochimique des sédiments de bassins pluviaux : une comparaison France/Suède]
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2023 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Detention- and infiltration-based systems for stormwater management trap runoff particles, which gradually form a sediment layer loaded with multiple contaminants. This study examines the trace metal composition of stormwater sediments, through a comparison between French and Swedish infrastructures. Composite sediment samples were collected from 18 infiltration basins in France and 17 wet ponds in Sweden, the catchments of which encompass a diversity of urban and sub-urban contexts. Zinc and copper were consistently more concentrated in sediments than the baseline levels in local soils, while this was not always the case for the other metals in Sweden. Overall, contamination levels were higher in the French sites: median Pb, Cu, and Zn concentrations were respectively 154, 152, and 570 mg/kg in France, and 19, 46, and 178 mg/kg in Sweden. This difference may be due to the functioning of the devices (infiltration vs. detention), but also suggests a possible “dilution” of runoff suspended solids in the Swedish catchments. The latter may originate from crushed traction grit or eroded soil particles, as some of the least polluted Swedish ponds had a relatively high share of permeable surface in their catchments. The geochemical signature of stormwater sediments was also found to be different between the two countries, as illustrated by the different ratios between metals, indicating dissimilarities in emission sources.

Abstract [fr]

Les ouvrages de rétention et d’infiltration des eaux pluviales interceptent les matières en suspension, qui forment progressivement une couche de sédiments poly-contaminés. Cette étude s’intéresse à la composition en métaux traces de ces sédiments, en comparant des infrastructures situées en France et en Suède. Des échantillons composites de sédiments ont été prélevés dans 18 bassins d’infiltration en France et 17 bassins de rétention en Suède, dont les bassins versants représentent une diversité de contextes urbains et péri-urbains. En comparaison du bruit de fond anthropisé des sols environnants, le zinc et le cuivre étaient systématiquement plus concentrés dans les sédiments, mais ce n’était pas toujours le cas pour les autres métaux en Suède. Les niveaux de contamination étaient globalement plus élevés dans les sites français : les teneurs médianes en Pb, Cu, et Zn étaient respectivement de 154, 152, et 570 mg/kg en France, et de 19, 46, et 178 mg/kg en Suède. Cette différence peut s’expliquer par le mode de fonctionnement des bassins (infiltration vs. rétention), mais suggère également une possible « dilution » des matières en suspension sur les bassins versants suédois, due à des graviers de traction broyés ou des particules de sol érodées. Les sédiments des deux pays présentaient une signature géochimique différente, comme l’illustrent les ratios entre métaux, ce qui indique des différences dans les sources d’émissions en France et en Suède.

Keywords
Detention, Infiltration, Metals, Ratios, Sediments, Sustainable Drainage Systems, Gestion durable des eaux pluviales, Infiltration, Métaux, Ratios, Rétention, Sédiments
National Category
Water Engineering Environmental Sciences
Research subject
Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-103339 (URN)
Conference
11th Novatech international conference, Lyon, France, July 3-7, 2023
Available from: 2023-12-18 Created: 2023-12-18 Last updated: 2024-01-25Bibliographically approved
Beryani, A., Flanagan, K., Viklander, M. & Blecken, G.-T. (2023). Managing environmental risk of organic micropollutants (OMPs) in highway stormwater: Role of gross pollutant trap-biofilter treatment train: [Gestion du risque environnemental des micropolluants organiques (OMP) dans les eaux pluviales des autoroutes: Rôle de la chaîne de traitement piège à polluant brut-biofilter]. In: : . Paper presented at 11th edition of Novatech 2023, Lyon, France, July 3-7, 2023.
Open this publication in new window or tab >>Managing environmental risk of organic micropollutants (OMPs) in highway stormwater: Role of gross pollutant trap-biofilter treatment train: [Gestion du risque environnemental des micropolluants organiques (OMP) dans les eaux pluviales des autoroutes: Rôle de la chaîne de traitement piège à polluant brut-biofilter]
2023 (English)Conference paper, Oral presentation with published abstract (Refereed)
National Category
Other Environmental Engineering
Research subject
Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-101338 (URN)
Conference
11th edition of Novatech 2023, Lyon, France, July 3-7, 2023
Available from: 2023-09-13 Created: 2023-09-13 Last updated: 2024-01-25Bibliographically approved
Beryani, A., Flanagan, K., Viklander, M. & Blecken, G.-T. (2023). Occurrence and concentrations of organic micropollutants (OMPs) in highway stormwater: a comparative field study in Sweden. Environmental Science and Pollution Research, 30(31), 77299-77317
Open this publication in new window or tab >>Occurrence and concentrations of organic micropollutants (OMPs) in highway stormwater: a comparative field study in Sweden
2023 (English)In: Environmental Science and Pollution Research, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 30, no 31, p. 77299-77317Article in journal (Refereed) Published
Abstract [en]

This study details the occurrence and concentrations of organic micropollutants (OMPs) in stormwater collected from a highway bridge catchment in Sweden. The prioritized OMPs were bisphenol-A (BPA), eight alkylphenols, sixteen polycyclic aromatic hydrocarbons (PAHs), and four fractions of petroleum hydrocarbons (PHCs), along with other global parameters, namely, total organic carbon (TOC), total suspended solids (TSS), turbidity, and conductivity (EC). A Monte Carlo (MC) simulation was applied to estimate the event mean concentrations (EMC) of OMPs based on intra-event subsamples during eight rain events, and analyze the associated uncertainties. Assessing the occurrence of all OMPs in the catchment and comparing the EMC values with corresponding environmental quality standards (EQSs) revealed that BPA, octylphenol (OP), nonylphenol (NP), five carcinogenic and four non-carcinogenic PAHs, and C16-C40 fractions of PHCs can be problematic for freshwater. On the other hand, alkylphenol ethoxylates (OPnEO and NPnEO), six low molecule weight PAHs, and lighter fractions of PHCs (C10-C16) do not occur at levels that are expected to pose an environmental risk. Our data analysis revealed that turbidity has a strong correlation with PAHs, PHCs, and TSS; and TOC and EC highly associated with BPA concentrations. Furthermore, the EMC error analysis showed that high uncertainty in OMP data can influence the final interpretation of EMC values. As such, some of the challenges that were experienced in the presented research yielded suggestions for future monitoring programs to obtain more reliable data acquisition and analysis.

Place, publisher, year, edition, pages
Springer Nature, 2023
Keywords
Road runoff, Quality monitoring, Monte-Carlo simulation, Uncertainty analysis, Censored data, Correlated parameters
National Category
Water Engineering
Research subject
Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-96463 (URN)10.1007/s11356-023-27623-9 (DOI)000999658600002 ()37253915 (PubMedID)2-s2.0-85160668482 (Scopus ID)
Funder
Swedish Research Council Formas, 2016–20074Vinnova, 2016–05176
Note

Validerad;2023;Nivå 2;2023-06-29 (sofila);

Available from: 2023-04-13 Created: 2023-04-13 Last updated: 2023-09-05Bibliographically approved
Beryani, A., Flanagan, K., Viklander, M. & Blecken, G.-T. (2023). Performance of a gross pollutant trap-biofilter and sand filter treatment train for the removal of organic micropollutants from highway stormwater (Field study). Science of the Total Environment, 900, Article ID 165734.
Open this publication in new window or tab >>Performance of a gross pollutant trap-biofilter and sand filter treatment train for the removal of organic micropollutants from highway stormwater (Field study)
2023 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 900, article id 165734Article in journal (Refereed) Published
Abstract [en]

This field study assessed the occurrence, event mean concentrations (EMCs), and removal of selected organic micro-pollutants (OMPs), namely, polycyclic aromatic hydrocarbons (PAHs), petroleum hydrocarbons (PHCs), nonylphenol (NP), 4-t-octylphenol (OP), and bisphenol A (BPA), in a gross pollutant trap (GPT)-biofilter/sand filter stormwater treatment train in Sundsvall, Sweden. The effects of design features of each treatment unit, including pre-sedimentation (GPT), sand filter medium, vegetation, and chalk amendment, were investigated by comparing the units' removal performances. Overall, the treatment train removed most OMPs from highway runoff effectively. The results showed that although the sand filter provided moderate (<50 % for phenolic substances) to high (50–80 % for PAHs and PHCs) removal of OMPs, adding a vegetated soil layer on top of the sand filter considerably improved the removal performance (by at least 30 %), especially for BPA, OP, and suspended solids. Moreover, GTP did not contribute to the treatment significantly. Uncertainties in the removal efficiencies of PAHs and PHCs by the filter cells increased substantially when the ratio of the influent concentration to the limit of quantification decreased. Thus, accounting for such uncertainties due to the low OMP concentrations should be considered when evaluating the removal performance of biofilters.

Place, publisher, year, edition, pages
Elsevier, 2023
Keywords
Road runoff, Bioretention, Retention soil filter, Vegetation, Censored data, Uncertainty analysis, Risk analysis
National Category
Water Engineering Other Environmental Engineering
Research subject
Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-96477 (URN)10.1016/j.scitotenv.2023.165734 (DOI)37495141 (PubMedID)2-s2.0-85166273222 (Scopus ID)
Funder
Swedish Research Council Formas, 2016-20074Vinnova, 2016-05176
Note

Validerad;2023;Nivå 2;2023-08-14 (joosat);

Licens fulltext: CC BY License

This article has previously appeared as a manuscript in a thesis.

Available from: 2023-04-20 Created: 2023-04-20 Last updated: 2023-09-06Bibliographically approved
Flanagan, K., Cartwright, M., Shen, P., McCarthy, D., Blecken, G.-T., Viklander, M. & Gromaire, M.-C. (2023). Treatment of micropollutants in stormwater biofilters: comparing model results with field and lab data: [Traitement de micropolluants par une noue filtrante : confrontation d’un modèle aux données expérimentales]. In: : . Paper presented at 11th Novatech international conference, Lyon, France, July 3-7, 2023.
Open this publication in new window or tab >>Treatment of micropollutants in stormwater biofilters: comparing model results with field and lab data: [Traitement de micropolluants par une noue filtrante : confrontation d’un modèle aux données expérimentales]
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2023 (English)Conference paper, Oral presentation with published abstract (Refereed)
National Category
Water Engineering
Research subject
Urban Water Engineering; Centre - Centre for Stormwater Management (DRIZZLE)
Identifiers
urn:nbn:se:ltu:diva-103332 (URN)
Conference
11th Novatech international conference, Lyon, France, July 3-7, 2023
Funder
Vinnova, 2016-05176
Note

Funder: OPUR partners; Université de Paris-Est

Available from: 2023-12-18 Created: 2023-12-18 Last updated: 2024-01-25Bibliographically approved
Razguliaev, N., Flanagan, K., Muthanna, T. & Viklander, M. (2023). Urban stormwater quality: A review of methods for continuous field monitoring. Water Research, Article ID 120929.
Open this publication in new window or tab >>Urban stormwater quality: A review of methods for continuous field monitoring
2023 (English)In: Water Research, ISSN 0043-1354, E-ISSN 1879-2448, article id 120929Article in journal (Refereed) Epub ahead of print
Place, publisher, year, edition, pages
Elsevier, 2023
National Category
Water Engineering
Research subject
Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-103159 (URN)10.1016/j.watres.2023.120929 (DOI)
Funder
Vinnova, 2016–05176
Available from: 2023-12-01 Created: 2023-12-01 Last updated: 2023-12-01
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-4327-5613

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