Effects of freeze-thaw leaching on physicochemical properties and cadmium transformation in cadmium contaminated soil

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 284, P. 116935 - 116935

Published: Aug. 28, 2024

This study aims to investigate the effect of combined method freeze-thaw and leaching on removal cadmium (Cd) in soil provide a theoretical basis for remediation farmland polluted by heavy metals. The process mechanism Cd were deduced through oscillatory experiments simulation experiments, influence technology environment was evaluated. results showed that mixture consisting 0.80 mol/L citric acid ferric chloride 1:19 vol ratio effectively remove 47.75 % Cd, indicating composite agent could from soil. experiment although treatment increased total content 0-5 cm layer, 5-10 cm, 10-15 15-20 layers decreased 5.08 %, 2.39 5.68 respectively. exchangeable (p<0.05), carbonate bound but organic residual thereby increasing bioavailability Cd. Freeze-thaw not only competitive adsorption

Language: Английский

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Effect of metal-modified sewage sludge biochar tubule on immobilization of chromium in unsaturated soil: Groundwater table fluctuations induced by rainfall

Chemosphere, Journal Year: 2024, Volume and Issue: unknown, P. 143378 - 143378

Published: Sept. 1, 2024

Language: Английский

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Coadsorption behaviour and mechanism of TiO2 NPs and OTC on different size particle components of Lou soil

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 707, P. 135841 - 135841

Published: Nov. 26, 2024

Language: Английский

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Effect of granulated biochar sphere on mineral nutrients in removing potentially toxic elements from contaminated agricultural soils

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 949, P. 174775 - 174775

Published: July 14, 2024

Language: Английский

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Deciphering the Driving Mechanism and Regulatory Strategies of Antibiotic Resistance Genes Transmission in Lead-Contaminated Soil Microbial Communities by Multiple Remediation Methods

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(21), P. 10077 - 10077

Published: Nov. 4, 2024

Pb-contaminated soil poses inherent risks for the spread of antibiotic resistance genes (ARGs). However, few reports have investigated distribution lead (LRGs), particularly their role in ARGs dynamics during remediation. This study explored mechanisms driving variation under different remediation strategies. The results indicated that an increase total abundance after applying montmorillonite (Imvite), composite agents MgO and Ca(H2PO4)2 (MgO-Ca(H2PO4)2), montmorillonite, MgO, (Imvite-MgO-Ca(H2PO4)2). Bioelectrochemical systems (BES) effectively reduced abundance, when combined with Imvite-MgO-Ca(H2PO4)2, lowered risk proliferation linked to deactivation. Changes Pb concentration pH reshaped microbial communities, impacting both LRGs ARGs. To reduce transmission during, various control strategies, such as modifying stress, adjusting pH, manipulating community structure, been proposed. provided theoretical foundation practical strategies controlling dissemination heavy metal-contaminated soil.

Language: Английский

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Plants colonization accelerates galena oxidation, mineralogical transformation, and microbial community reshaping under the soil phytoremediation processes

Environmental Research, Journal Year: 2024, Volume and Issue: unknown, P. 120687 - 120687

Published: Dec. 1, 2024

Language: Английский

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Emission Characteristics of Condensable Particulate Matter During the Production of Solid Waste-Based Sulfoaluminate Cement: Compositions, Heavy Metals, and Preparation Impacts

Published: Jan. 1, 2023

Language: Английский

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