Evaluating nickel removal efficacy of Filtralite under laboratory conditions: Implications for sustainable urban drainage systems
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Title: | Evaluating nickel removal efficacy of Filtralite under laboratory conditions: Implications for sustainable urban drainage systems |
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Authors: | Mederos, Marlon | Pla, Concepción | Valdes-Abellan, Javier | Benavente, David |
Research Group/s: | Ingeniería Hidráulica y Ambiental (IngHA) | Petrología Aplicada |
Center, Department or Service: | Universidad de Alicante. Departamento de Ingeniería Civil | Universidad de Alicante. Departamento de Ciencias de la Tierra y del Medio Ambiente |
Keywords: | Heavy metals | Filtralite | Nickel | HYDRUS | PHREEQC |
Issue Date: | 9-May-2024 |
Publisher: | Elsevier |
Citation: | Journal of Water Process Engineering. 2024, 63: 105416. https://doi.org/10.1016/j.jwpe.2024.105416 |
Abstract: | Our study deals with the critical issue of heavy metal pollution in urban runoff; we focused particularly on the threat posed by heavy metals such as nickel to living organisms and water resources owing to their toxicity at low concentrations and non-biodegradability. In this study, we evaluated the efficacy of Filtralite, a filtration medium with excellent hydraulic properties, in removing nickel from water through laboratory experiments and advanced simulation tools. We analysed the geochemical processes involved in nickel removal, including precipitation and adsorption. Importantly, we implemented an innovative approach for numerical modelling using HP1, by combining HYDRUS-1D and PHREEQC for modelling solute transport in porous media and geochemical reactions, respectively. The experimental results revealed that the Filtralite-laden column achieved a removal efficiency of 93.5 % for injected nickel. We observed a significant increase in the effluent pH from 7.0 to 11.5 during the interaction with Filtralite, affecting the solubility of the nickel phases. The model showed the highest nickel concentration in the initial column layers because of rapid chemical precipitation and adsorption upon contact with Filtralite. High-resolution scanning electron microscopy images confirmed the presence of amorphous precipitates around the soil particles, aligning with the changes in pH. This study contributes significantly to environmental engineering and urban water management by introducing an innovative numerical model in HP1 to accurately simulate the removal of nickel using Filtralite. These findings validate the efficiency of Filtralite in extracting nickel from aqueous solutions. Thus, Filtralite is a strong candidate for inclusion in sustainable urban drainage systems. |
Sponsor: | This work was supported by University of Alicante (project GRE17-12), and Generalitat Valenciana (project GV/2020/059). A pre-doctoral research fellowship (CIACIF/2021/469) was awarded to M.M. by the Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital. |
URI: | http://hdl.handle.net/10045/142825 |
ISSN: | 2214-7144 |
DOI: | 10.1016/j.jwpe.2024.105416 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2024 Elsevier Ltd. |
Peer Review: | si |
Publisher version: | https://doi.org/10.1016/j.jwpe.2024.105416 |
Appears in Collections: | INV - PETRA - Artículos de Revistas INV - IngHA - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
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Mederos_etal_2024_JWaterProcessEng_final.pdf | Versión final (acceso restringido) | 6,57 MB | Adobe PDF | Open Request a copy |
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