Adsorption of Cd by peanut husks and peanut husk biochar from aqueous solutions

Qiming Cheng; Qing Huang; Sardar Khan; Yingjie Liu; Zhenni Liao; Gang Li; Yong Sik Ok

doi:10.1016/j.ecoleng.2015.11.045

Adsorption of Cd by peanut husks and peanut husk biochar from aqueous solutions

Qiming Cheng, Qing Huang, Sardar Khan, Yingjie Liu, Zhenni Liao, Gang Li, Yong Sik Ok

Research output: Contribution to journal › Article › peer-review

138 Citations (Scopus)

Abstract

This study was conducted to investigate the best absorbent for cadmium (Cd) present in aqueous solutions. Among the selected absorbents (n=22), peanut husk biochar (PHB) was the best absorbent for Cd and its adsorption reached to equilibrium within 12h. In this study, the optimum conditions observed for Cd adsorption were pH 5.0, an initial Cd concentration of 200mgL^-1, a PHB dosage of 40gL^-1, and room temperature. The Cd removal efficiency of the tested biochar reached to 99.9% at these optimum conditions. EDX analysis confirmed that Cd was adsorbed onto PHB more than onto PHs. It is concluded that PHB can be used as a good remediating material for removal of Cd from contaminated environmental matrixes.

Original language	English
Pages (from-to)	240-245
Number of pages	6
Journal	Ecological Engineering
Volume	87
DOIs	https://doi.org/10.1016/j.ecoleng.2015.11.045
Publication status	Published - 2016 Feb 1
Externally published	Yes

Keywords

Adsorption
Aqueous media
Cadmium
Isothermal model
Peanut husk biochar

ASJC Scopus subject areas

Environmental Engineering
Nature and Landscape Conservation
Management, Monitoring, Policy and Law

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10.1016/j.ecoleng.2015.11.045

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title = "Adsorption of Cd by peanut husks and peanut husk biochar from aqueous solutions",

abstract = "This study was conducted to investigate the best absorbent for cadmium (Cd) present in aqueous solutions. Among the selected absorbents (n=22), peanut husk biochar (PHB) was the best absorbent for Cd and its adsorption reached to equilibrium within 12h. In this study, the optimum conditions observed for Cd adsorption were pH 5.0, an initial Cd concentration of 200mgL-1, a PHB dosage of 40gL-1, and room temperature. The Cd removal efficiency of the tested biochar reached to 99.9% at these optimum conditions. EDX analysis confirmed that Cd was adsorbed onto PHB more than onto PHs. It is concluded that PHB can be used as a good remediating material for removal of Cd from contaminated environmental matrixes.",

keywords = "Adsorption, Aqueous media, Cadmium, Isothermal model, Peanut husk biochar",

author = "Qiming Cheng and Qing Huang and Sardar Khan and Yingjie Liu and Zhenni Liao and Gang Li and Ok, {Yong Sik}",

note = "Funding Information: We gratefully acknowledge financial support from the National Natural Science Foundation of China ( 41571288 ), Chinese Academy of Sciences Key Development Project (KZZD-EW-16-02), National Science and Technology Support Program of China ( 2014BAD14B04 ), the National High-Tech R&D Program of China ( 2012AA06A204 ), and Fujian Provincial Department of Science and Technology Project (2015Y0084). The authors also thank Mr. Yijun Yan for assistance on testing of the samples. Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2016",

month = feb,

day = "1",

doi = "10.1016/j.ecoleng.2015.11.045",

language = "English",

volume = "87",

pages = "240--245",

journal = "Ecological Engineering",

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T1 - Adsorption of Cd by peanut husks and peanut husk biochar from aqueous solutions

AU - Cheng, Qiming

AU - Huang, Qing

AU - Khan, Sardar

AU - Liu, Yingjie

AU - Liao, Zhenni

AU - Li, Gang

AU - Ok, Yong Sik

N1 - Funding Information: We gratefully acknowledge financial support from the National Natural Science Foundation of China ( 41571288 ), Chinese Academy of Sciences Key Development Project (KZZD-EW-16-02), National Science and Technology Support Program of China ( 2014BAD14B04 ), the National High-Tech R&D Program of China ( 2012AA06A204 ), and Fujian Provincial Department of Science and Technology Project (2015Y0084). The authors also thank Mr. Yijun Yan for assistance on testing of the samples. Publisher Copyright: © 2015 Elsevier B.V.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - This study was conducted to investigate the best absorbent for cadmium (Cd) present in aqueous solutions. Among the selected absorbents (n=22), peanut husk biochar (PHB) was the best absorbent for Cd and its adsorption reached to equilibrium within 12h. In this study, the optimum conditions observed for Cd adsorption were pH 5.0, an initial Cd concentration of 200mgL-1, a PHB dosage of 40gL-1, and room temperature. The Cd removal efficiency of the tested biochar reached to 99.9% at these optimum conditions. EDX analysis confirmed that Cd was adsorbed onto PHB more than onto PHs. It is concluded that PHB can be used as a good remediating material for removal of Cd from contaminated environmental matrixes.

AB - This study was conducted to investigate the best absorbent for cadmium (Cd) present in aqueous solutions. Among the selected absorbents (n=22), peanut husk biochar (PHB) was the best absorbent for Cd and its adsorption reached to equilibrium within 12h. In this study, the optimum conditions observed for Cd adsorption were pH 5.0, an initial Cd concentration of 200mgL-1, a PHB dosage of 40gL-1, and room temperature. The Cd removal efficiency of the tested biochar reached to 99.9% at these optimum conditions. EDX analysis confirmed that Cd was adsorbed onto PHB more than onto PHs. It is concluded that PHB can be used as a good remediating material for removal of Cd from contaminated environmental matrixes.

KW - Adsorption

KW - Aqueous media

KW - Cadmium

KW - Isothermal model

KW - Peanut husk biochar

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DO - 10.1016/j.ecoleng.2015.11.045

M3 - Article

AN - SCOPUS:84949666800

VL - 87

SP - 240

EP - 245

JO - Ecological Engineering

JF - Ecological Engineering

SN - 0925-8574

ER -

Adsorption of Cd by peanut husks and peanut husk biochar from aqueous solutions

Abstract

Keywords

ASJC Scopus subject areas

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