Monitoring and characterising the solids loading dynamics to drainage systems via gully pots

Rietveld, Matthijs; Clemens, F.H.L.R.; Langeveld, Jeroen

doi:10.1080/1573062x.2021.1925706

Cited by 7 publications

(1 citation statement)

References 42 publications

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“…Accumulation increases under poor landscape management and becomes the largest source of water pollution due to the sediment volume in the different urban structures (Seleznev et al, 2019). In addition, sediment in stormwater drainage structures can reduce their capacity, lead to clogging, and require excessive maintenance (Rietveld et al, 2021;Schroer et al, 2018).…”

Section: Sediment Accumulationmentioning

confidence: 99%

Metodologías de modelación experimental y estadística para mejorar la gestión de los sedimentos depositados en sistemas pluviales urbanos

Avella¹

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This endeavor would not have been possible without the support of Minciencias as a funder to carry out the doctorate through call 785 of 2017. Also, the generous support from the Pontificia Universidad Javeriana, for financing part of the research project and the research seedbed "agua en la ciudad". Nonetheless, I would like to express my gratitude to the University of Coruña for receiving me to do the internship. Special thanks to the professors and students of the seedbed for their support in collecting samples and analyzing them in the laboratory, and to the students of the tenth semester of medicine in 2022-3. I'd like to recognize my family, especially my parents and my partner, who offered me their unconditional support throughout this journey. Lastly, I would be remiss not to mention my friends, who have always supported the process, and my colleagues, who inspire me. List of equationsEquation 1. Average Intensity (mm/h) Equation 2. Maximum Intensity (mm/h) Equation 3. Curve number I Equation 4. Curve number III Equation 5. Maximum infiltration capacity (mm) Equation 6. Runoff coefficient (dimensionless) Equation 7 Rational method (m 3 /s) Equation 8. Geo-accumulation index (Igeo) Equation 9. Enrichment factor (EF) Equation 10. Pollution load index (PI) Equation 11. Modified Pollution index (MPI) Equation 12. Potential ecological risk index (RI) Equation 13. Modified ecological risk index (MRI) Equation 14. Pollution load index (PLI) Equation 15. Human health risk by ingestion (mg*kg -1 *d -1 ) Equation 16. Human health risk by dermal contact (mg*kg -1 *d -1 ) Equation 17. Human health risk by inhalation (mg*kg -1 *d -1 ) Equation 18. Hazard quotients (HQ) for non-carcinogenic HM Equation 19. Hazard index (HI) for non-carcinogenic HM Equation 20. Carcinogenic Risk (CR) Equation 21. Total Carcinogenic Risk (TCR) Equation 22 Accumulation simple linear regression model Equation 23 Accumulation multiple linear regression model

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Section: Sediment Accumulationmentioning

confidence: 99%

Metodologías de modelación experimental y estadística para mejorar la gestión de los sedimentos depositados en sistemas pluviales urbanos

Avella¹

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An evaluation of temporal changes in physicochemical properties of gully pot sediments

Wei

Muthanna

Lundy

et al. 2022

Environ Sci Pollut Res

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Diffuse pollution is recognised as a major challenge in achieving EU Water Framework Directive compliance, with urban runoff being a key pathway connecting various sources to receiving waters. Gully pots, as one of the ubiquitous urban drainage infrastructures, are placed at the inlets of piped drainage pipe network and actively drain runoff from urban catchment with suspended solids proportionally retained. The physiochemical properties of these retained solids reflect the activities within the catchment during the accumulation period. In this work, seven gully pots in two catchment types (highway and housing) in Luleå, Sweden were fully emptied and sediments analysed for total mass, particle size distribution and selected metal concentrations by six size fractions. The results of this sampling campaign are compared with the results of a 2005 study of the same gully pots to identify changes in the physicochemical properties of sediments over time and examine whether changes identified can be linked to changes in wider catchment management practices. The results highlight the potential impacts of winter road maintenance operations (e.g. up to a 15-fold higher solids loading rate in road catchment gully pots), reaching a normalised solids accumulation rate of 0.176–0.819 kg m2 year−1. An increase in tyre and road wear associated with winter road maintenance operations is also understood to contribute to the temporal increase of several metals including Cu, Zn, Co, Cr and V in the < 63-µm solids fraction in the road catchment gully pots. The concentrations of As and Pb decrease in all size fractions in both catchments, with the implementation of unleaded fuels (for Pb in housing catchment only), End-of-Life Vehicle Directive (Directive 2000/53/EC) (for Pb in both catchments), and strengthened industrial emission reduction measures suggested as possible drivers. The high contamination load for Zn, Cu, Cd and Pb in < 63-µm sediments from low-traffic housing catchment also emphasised the necessity of tracing and restricting non-traffic-related metal sources. Further seasonal monitoring of gully pot sediments is recommended to fully follow up the development of metals loading in both catchments.

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Accumulation and contamination of gully pot sediments from varied land-use types: metal loads, concentrations and speciation

Gavrić,

Flanagan,

Wei

et al. 2023

Environ Sci Pollut Res

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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.

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Monitoring and characterising the solids loading dynamics to drainage systems via gully pots

Cited by 7 publications

References 42 publications

Metodologías de modelación experimental y estadística para mejorar la gestión de los sedimentos depositados en sistemas pluviales urbanos

Metodologías de modelación experimental y estadística para mejorar la gestión de los sedimentos depositados en sistemas pluviales urbanos

An evaluation of temporal changes in physicochemical properties of gully pot sediments

Accumulation and contamination of gully pot sediments from varied land-use types: metal loads, concentrations and speciation

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