Effect of ZnO nanoparticles on Zn, Cu, and Pb dissolution in a green bioretention system for urban stormwater remediation

Caldelas, Cristina; Gurí, Rosa; Araus, J. L.; Sorolla, Albert

doi:10.1016/j.chemosphere.2021.131045

Cited by 15 publications

(5 citation statements)

References 78 publications

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“…Detailed design characteristics of the monitored ABCWDFs and precinct outlets are summarised in Table 1. Bioretention system (5) Bioretention system (11) Bioretention system (1) Bioretention system (4) Swale system (2)…”

Section: Study Areamentioning

confidence: 99%

“…Key blue-green infrastructures such as bioretention systems and vegetated swales are widely used in stormwater management solutions due to their effectiveness in the management of stormwater peak flow, runoff volume and stormwater pollution [4,5]. Bioretention systems are effective solutions for the removal of pollutants in stormwater runoff, such as suspended solids [6,7], nutrients [8][9][10] and heavy metals [11,12]. Vegetated swales were also reported to improve stormwater runoff quality [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Active, Beautiful, Clean Waters Design Features in Tropical Urban Cities: A Case Study in Singapore

Neo

Fowdar

et al. 2022

Water

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In Singapore, active, beautiful, clean waters design features (ABCWDFs), such as rain gardens and vegetated swales, are used as a sustainable approach for stormwater management. Field monitoring studies characterising the performance of these design features in the tropical region are currently limited, hampering the widespread implementation of these systems. This study characterised the performance of individual ABCWDFs in the tropical climate context by monitoring a rain garden (FB7) and a vegetated swale (VS1) that were implemented in a 4-ha urban residential precinct for a period of 15 months. Results showed that total suspended solids (TSS), total phosphorus (TP) and total nitrogen (TN) concentrations were low in the new residential precinct runoff, leading to poor removal efficiency despite the effluent concentrations of individual ABCWDFs that were within the local stormwater treatment objectives. Average TSS, TP and TN EMCs of four sub-catchment outlets were lower (23.2 mg/L, 0.11 mg/L and 1.00 mg/L, respectively) when compared to the runoff quality of the major catchments in Singapore, potentially demonstrating that the ABCWDFs are effective in improving the catchment runoff quality. Findings from this study can help to better understand the performance of ABCWDFs receiving low influent concentrations and implications for further investigations to improve stormwater runoff management in the tropics.

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Section: Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of Active, Beautiful, Clean Waters Design Features in Tropical Urban Cities: A Case Study in Singapore

Neo

Fowdar

et al. 2022

Water

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“…Likewise, it is advisable to previously characterize the filtering materials in order to improve their decontaminant treatment capacity and predict negative interactions with runoff water (Zúñiga-Estrada et al, 2020). Some examples used are gravels of granitic composition with very low dissolving capacity (Caldelas et al, 2021) as well as pebbles, quartz sand, slag, loess and activated carbon due to their high porosity and adsorption capacity (Zhang et al, 2021a).…”

Section: Main Features and Functionsmentioning

confidence: 99%

“…Rain gardens are effective in treating suspended sediments, heavy metals, nutrients and organic compounds (Vijayaraghavan et al, 2021). Water quality improves through a complex combination of natural processes that take place in the filter material, such as adsorption, precipitation, microbial biodegradation, photodegradation, volatilization and absorption through plants (Caldelas et al, 2021). As for the materials selected for backfilling, those commonly used (soil with organic matter, sand, clay loam and clayey sand) have a limited capacity to treat dissolved contaminants, which tend to infiltrate into the subsoil (Tirpak et al, 2021).…”

Section: Pollutant Removal Capacitymentioning

confidence: 99%

CIERMMI Women in Science Engineering and Technology TXV

JESÚS¹,

OLIVARES-RAMÍREZ²,

CRUZ-RAMÍREZ³

et al. 2021

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In recent years, society has achieved a better quality of life; this has been possible thanks to scientific and technological advances. Among the advances that have allowed us to move forward is, without a doubt, the development of the vaccine against the SARS-CoV-2 virus. The method used for the synthesis of this vaccine was developed by Ugur Sahin and Öezlem Türeci, founders of BioNTech. Yes, behind the scientific development of greatest impact and relevance in recent years are a man and a woman. This scientific development was possible thanks to both of them, and here it is important to highlight the quality of women in science related to seeing issues from another perspective. Therefore, the union of their strengths and their differences made it possible to have a vaccine that makes it possible to return to life without confinement, without fear of going out, and with the possibility of enjoying it. Thus, the role of women in science is not only valuable, but fundamental to solve the problems that afflict us today. In this context, I can only thank and congratulate the women who today, thanks to their training, discipline and commitment, are giving us this wonderful work of science. I am sure that more challenges will come, but always counting on them, we will come out ahead. My most sincere appreciation and admiration.

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“…Furthermore, bioretention facilities have shown a good removal impact on N, P, heavy metals, microplastics, and other contaminants in stormwater runoff (Smyth et al 2021 ). For instance, the green bioretention facilities constructed by Caldelas et al ( 2021 ) retained up to 73% Zn, 66% Cu, and > 99% Pb. However, several elements, particularly those in the growing media layer (Fan et al 2019 ), influence the performance of bioretention facilities.…”

Section: Introductionmentioning

confidence: 99%

The migration and accumulation of typical pollutants in the growing media layer of bioretention facilities

Gong

Xie

et al. 2023

Environ Sci Pollut Res

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A series of complex physical and chemical processes, such as interception, migration, accumulation, and transformation, can occur when pollutants in stormwater runoff enter the growing media layer of bioretention facilities, affecting the purification of stormwater runoff by bioretention facilities. The migration and accumulation of pollutants in the growing media layer need long-term monitoring in traditional experimental studies. In this study, we established the Hydrus-1D model of water and solution transport for the bioretention facilities. By analyzing the variation of cumulative fluxes of NO 3 - -N and Pb with time and depth, we investigated pollutant migration and accumulation trends in the growing media layer of bioretention facilities. It can provide support for reducing runoff pollutants in bioretention facilities. The Hydrus-1D model was calibrated and verified with experimental data, and the input data (runoff pollutant concentration) for the pollutant concentration boundary was obtained from the SWMM model. The results demonstrated that the cumulative fluxes of NO 3 - -N and Pb increased with the passage of simulation time and depth of the growing media layer overall. From the top to the bottom of the growing media layer, the change rates of the peak cumulative fluxes of NO 3 - -N and Pb were strongly linked with their levels in the runoff. An increase in rainfall decreased the content of NO 3 - -N and Pb in the growing media layer, and this phenomenon was more obvious in the lower part of the layer. Graphical Abstract

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Effect of ZnO nanoparticles on Zn, Cu, and Pb dissolution in a green bioretention system for urban stormwater remediation

Cited by 15 publications

References 78 publications

Evaluation of Active, Beautiful, Clean Waters Design Features in Tropical Urban Cities: A Case Study in Singapore

Evaluation of Active, Beautiful, Clean Waters Design Features in Tropical Urban Cities: A Case Study in Singapore

CIERMMI Women in Science Engineering and Technology TXV

The migration and accumulation of typical pollutants in the growing media layer of bioretention facilities

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