Enhancing the stability of soil contaminated with fluoride through the utilization of pristine and aluminium-impregnated biochar: a comprehensive mechanistic approach

The effect of trivalent metal-modified biochar on the stability and mitigation of fluoride ions (F - ) in contaminated soils remains largely unexplored, despite biochar’s extensive application in F - -contaminated soil. The mineral metal-modified biochar has the potential to serve as an efficient so...

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Published in:Environmental science and pollution research international 2024-10, Vol.31 (48), p.58445-58455
Main Authors: Khan, Basit Ahmed, Iqbal, Sajid, Khattak, Junaid Ali, Bolan, Nanthi, Ahmad, Mahtab
Format: Article
Language:English
Subjects:
Agriculture
Aluminum
Aluminum chloride
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Charcoal
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental science
Extraction procedures
Fluorides
Groundwater pollution
Research Article
Scanning electron microscopy
Soil analysis
Soil contamination
Soil dispersion
Soil pollution
Soil remediation
Soil stability
Waste Water Technology
Water Management
Water Pollution Control
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Summary:The effect of trivalent metal-modified biochar on the stability and mitigation of fluoride ions (F - ) in contaminated soils remains largely unexplored, despite biochar’s extensive application in F - -contaminated soil. The mineral metal-modified biochar has the potential to serve as an efficient solution for soil contaminated with F - . In this study, pristine-pinecone biochar (P-BC) and AlCl 3 -modified pinecone biochar (A-BC) were synthesized and then utilized to remediate the soil that had been contaminated with F - . Both P-BC and A-BC efficiently immobilized F - within the contaminated soil. Further examinations through sequential extraction procedure and subsequent analysis using scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and elemental dot mapping demonstrated a transformation of F - into a more stable state by A-BC treatment of the contaminated soil. This implies that A-BC may possess the capacity to function as an efficient ameliorant for immobilizing F - within the soil.
ISSN:1614-7499
0944-1344
1614-7499
DOI:10.1007/s11356-024-34951-x