Exploring the potential of green-synthesized hydroxyapatite for cadmium remediation in paddy soils
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Le résumé fourni par la source
The Cadmium contamination in paddy soils significantly threatens soil health and food safety. This study addresses the urgent need for cost-effective and sustainable remediation methods by evaluating the efficacy of green-synthesized hydroxyapatite (GHAP) in immobilizing Cd in paddy soils. The investigation focused on the effects of applying GHAP, commercial hydroxyapatite (CHAP), and pure hydroxyapatite (CK) on soil physicochemical properties, as well as Cd mobility and transfer within the soil-rice system. Our results demonstrate that GHAP significantly enhanced Cd adsorption and reduced bioavailable Cd content by up to 48.47 %, with the most effective results observed at a 1 % amendment rate. Additionally, GHAP application elevated soil pH and available phosphorus, contributing to better soil structure, fertility, and rice growth. Correlation and principal component analyses revealed that the GHAP dosage was a key factor in modifying soil properties and influencing Cd speciation and mobility. These findings suggest that a 1 % GHAP dosage achieves an optimal balance between improving soil quality and effectively passivating Cd, making GHAP a promising amendment for remediating Cd-contaminated soils. • GHAP outperforms CHAP in enhancing Cd 2+ adsorption by the soil. • GHAP had minimal effects on soil physicochemical properties. • HAP-derived phosphorus plays an important role in Cd availability. • HAP dosage critically governs soil properties and Cd immobilization.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Exploring the potential of green-synthesized hydroxyapatite for cadmium remediation in paddy soils
- Date Crossref
- 01/06/2025
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Huaiyin Normal University pays non établi dans la noticeUniversité ou école supérieure
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Khalifa University of Science and Technology Department of Chemical and Petroleum Engineering pays non établi dans la noticeUniversité ou école supérieure
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Northwest Normal University pays non établi dans la noticeUniversité ou école supérieure
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School of Chemistry and Chemical Engineering Jiangsu Engineering Research Center for Environmental Functional Materials pays non établi dans la noticeUniversité ou école supérieure
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College of Chemistry and Chemical Engineering pays non établi dans la noticeUniversité ou école supérieure
Huaiyin Normal University, Department of Chemical and Petroleum Engineering — Khalifa University of Science and Technology et Northwest Normal University, avec 2 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.