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Sorption and mobility of cadmium in soil impacted by irrigation waters

Soil contamination by Cd has drawn global attention, while how irrigation waters modulate Cd sorption and mobility in soil remains obscure. We address this by investigating how cropped sandy soil irrigated with different waters altered Cd sorption and mobility using a rhizobox experiment followed by...

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Autores principales: Li, Baogui, Liu, Yuan, Tao, Zhen, Zhao, Zhijuan, Fan, Tao, Li, Zhongyang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10213374/
https://www.ncbi.nlm.nih.gov/pubmed/37251851
http://dx.doi.org/10.1016/j.heliyon.2023.e16304
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author Li, Baogui
Liu, Yuan
Tao, Zhen
Zhao, Zhijuan
Fan, Tao
Li, Zhongyang
author_facet Li, Baogui
Liu, Yuan
Tao, Zhen
Zhao, Zhijuan
Fan, Tao
Li, Zhongyang
author_sort Li, Baogui
collection PubMed
description Soil contamination by Cd has drawn global attention, while how irrigation waters modulate Cd sorption and mobility in soil remains obscure. We address this by investigating how cropped sandy soil irrigated with different waters altered Cd sorption and mobility using a rhizobox experiment followed by a batch experiment. Maize were planted in the rhizoboxes and irrigated by reclaimed water (RW), livestock wastewater (LW) and deionized water (CK), respectively. The bulk soil sampled from each treatment after 60 days of growth was employed to measure the Cd sorption and mobility using the isothermal adsorption and desorption experiments. The results showed that, in a small rhizobox experiment, the adsorption rate of Cd by the bulk soil in the adsorption phase was much faster than the desorption rate in desorption phase. Irrigation with RW and LW both reduced the Cd adsorption capacity of soil, and the reducing degree brought by LW was more obvious. Cd desorption rate was very low but keep increasing in the desorption stage, and pre-RW irrigation had the potential to increase Cd desorption from soil. Although the results were obtained based on the bulk soil sampled from a rhizobox experiment, our study strongly suggests that the altered Cd adsorption and desorption behavior in the soil caused by the RW and LW irrigation may risk the farmland ecosystem and deserve more concern.
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spelling pubmed-102133742023-05-27 Sorption and mobility of cadmium in soil impacted by irrigation waters Li, Baogui Liu, Yuan Tao, Zhen Zhao, Zhijuan Fan, Tao Li, Zhongyang Heliyon Research Article Soil contamination by Cd has drawn global attention, while how irrigation waters modulate Cd sorption and mobility in soil remains obscure. We address this by investigating how cropped sandy soil irrigated with different waters altered Cd sorption and mobility using a rhizobox experiment followed by a batch experiment. Maize were planted in the rhizoboxes and irrigated by reclaimed water (RW), livestock wastewater (LW) and deionized water (CK), respectively. The bulk soil sampled from each treatment after 60 days of growth was employed to measure the Cd sorption and mobility using the isothermal adsorption and desorption experiments. The results showed that, in a small rhizobox experiment, the adsorption rate of Cd by the bulk soil in the adsorption phase was much faster than the desorption rate in desorption phase. Irrigation with RW and LW both reduced the Cd adsorption capacity of soil, and the reducing degree brought by LW was more obvious. Cd desorption rate was very low but keep increasing in the desorption stage, and pre-RW irrigation had the potential to increase Cd desorption from soil. Although the results were obtained based on the bulk soil sampled from a rhizobox experiment, our study strongly suggests that the altered Cd adsorption and desorption behavior in the soil caused by the RW and LW irrigation may risk the farmland ecosystem and deserve more concern. Elsevier 2023-05-19 /pmc/articles/PMC10213374/ /pubmed/37251851 http://dx.doi.org/10.1016/j.heliyon.2023.e16304 Text en © 2023 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Research Article
Li, Baogui
Liu, Yuan
Tao, Zhen
Zhao, Zhijuan
Fan, Tao
Li, Zhongyang
Sorption and mobility of cadmium in soil impacted by irrigation waters
title Sorption and mobility of cadmium in soil impacted by irrigation waters
title_full Sorption and mobility of cadmium in soil impacted by irrigation waters
title_fullStr Sorption and mobility of cadmium in soil impacted by irrigation waters
title_full_unstemmed Sorption and mobility of cadmium in soil impacted by irrigation waters
title_short Sorption and mobility of cadmium in soil impacted by irrigation waters
title_sort sorption and mobility of cadmium in soil impacted by irrigation waters
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10213374/
https://www.ncbi.nlm.nih.gov/pubmed/37251851
http://dx.doi.org/10.1016/j.heliyon.2023.e16304
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