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Sorption of lead by Salisbury biochar produced from British broadleaf hardwood

Shen, Zhengtao, Jin, Fei ORCID: https://orcid.org/0000-0003-0899-7063, Wang, Fei, McMillan, Oliver and Al-Tabbaa, Abir 2015. Sorption of lead by Salisbury biochar produced from British broadleaf hardwood. Bioresource Technology 193 , pp. 553-556. 10.1016/j.biortech.2015.06.111

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Abstract

In this study, the physicochemical properties of Salisbury biochar produced from British broadleaf hardwood and its adsorption characteristics towards lead were investigated. The biochar particle size has a significant effect on its BET surface area, cation exchange capacity and sorption of lead. The kinetics data were well fitted by the Pseudo second order model. The increase of biochar dosage increased the percentage of lead removal in solutions. The increase of initial solution pH increased the percentage of lead removal across the pH range of 2–10. The calculated maximum adsorption capacities of lead by Langmuir model were 47.66 and 30.04 mg/g for 0.15 mm and 2 mm samples. The adsorption capacities of different metals decreased in the order of lead > nickel > copper > zinc calculated in mmol/g. This study suggests a great potential of biochars derived from British broadleaf hardwood to be applied in soil remediation.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Elsevier
ISSN: 0960-8524
Date of Acceptance: 22 June 2015
Last Modified: 07 Nov 2022 10:46
URI: https://orca.cardiff.ac.uk/id/eprint/133493

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