Fabrication of engineered biochar from paper mill sludge and its application into removal of arsenic and cadmium in acidic water

Kwangsuk Yoon; Dong Wan Cho; Chiu Wa Tsang; Nanthi Bolan; Jörg Rinklebe; Hocheol Song

doi:10.1016/j.biortech.2017.07.020

Fabrication of engineered biochar from paper mill sludge and its application into removal of arsenic and cadmium in acidic water

Kwangsuk Yoon, Dong Wan Cho, Chiu Wa Tsang, Nanthi Bolan, Jörg Rinklebe, Hocheol Song

Research output: Journal article publication › Journal article › Academic research › peer-review

47 Citations (Scopus)

Abstract

The characterization results revealed that the biochar had the structure of complex aggregates containing solid minerals (FeO, Fe3O4and CaCO3) and graphitic carbon. Adsorption studies were carried out covering various parameters including pH effect, contact time, initial concentrations, competitive ions, and desorption. The adsorption of As(V) and Cd(II) reached apparent equilibrium at 180 min, and followed the pseudo-second-order kinetics. The highest equilibrium uptakes of As(V) and Cd(II) were 22.8 and 41.6 mg g−1, respectively. The adsorption isotherms were better described by Redlich-Peterson model. The decrease in As(V) adsorption was apparent with the increase in PO43−concentration, and a similar inhibition effect was observed for Cd(II) adsorption with Ni(II) ion. The feasibility of regeneration was demonstrated through desorption by NaOH or HCl.

Original language	English
Pages (from-to)	69-75
Number of pages	7
Journal	Bioresource Technology
Volume	246
DOIs	https://doi.org/10.1016/j.biortech.2017.07.020
Publication status	Published - 1 Dec 2017

Keywords

Adsorption
Arsenic
Cadmium
Magnetic biochar
Paper mill sludge

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

More information

10.1016/j.biortech.2017.07.020

Scopus Link

Cite this

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title = "Fabrication of engineered biochar from paper mill sludge and its application into removal of arsenic and cadmium in acidic water",

abstract = "The characterization results revealed that the biochar had the structure of complex aggregates containing solid minerals (FeO, Fe3O4and CaCO3) and graphitic carbon. Adsorption studies were carried out covering various parameters including pH effect, contact time, initial concentrations, competitive ions, and desorption. The adsorption of As(V) and Cd(II) reached apparent equilibrium at 180 min, and followed the pseudo-second-order kinetics. The highest equilibrium uptakes of As(V) and Cd(II) were 22.8 and 41.6 mg g−1, respectively. The adsorption isotherms were better described by Redlich-Peterson model. The decrease in As(V) adsorption was apparent with the increase in PO43−concentration, and a similar inhibition effect was observed for Cd(II) adsorption with Ni(II) ion. The feasibility of regeneration was demonstrated through desorption by NaOH or HCl.",

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Fabrication of engineered biochar from paper mill sludge and its application into removal of arsenic and cadmium in acidic water. / Yoon, Kwangsuk; Cho, Dong Wan; Tsang, Chiu Wa; Bolan, Nanthi; Rinklebe, Jörg; Song, Hocheol.

In: Bioresource Technology, Vol. 246, 01.12.2017, p. 69-75.

Research output: Journal article publication › Journal article › Academic research › peer-review

TY - JOUR

T1 - Fabrication of engineered biochar from paper mill sludge and its application into removal of arsenic and cadmium in acidic water

AU - Yoon, Kwangsuk

AU - Cho, Dong Wan

AU - Tsang, Chiu Wa

AU - Bolan, Nanthi

AU - Rinklebe, Jörg

AU - Song, Hocheol

PY - 2017/12/1

Y1 - 2017/12/1

N2 - The characterization results revealed that the biochar had the structure of complex aggregates containing solid minerals (FeO, Fe3O4and CaCO3) and graphitic carbon. Adsorption studies were carried out covering various parameters including pH effect, contact time, initial concentrations, competitive ions, and desorption. The adsorption of As(V) and Cd(II) reached apparent equilibrium at 180 min, and followed the pseudo-second-order kinetics. The highest equilibrium uptakes of As(V) and Cd(II) were 22.8 and 41.6 mg g−1, respectively. The adsorption isotherms were better described by Redlich-Peterson model. The decrease in As(V) adsorption was apparent with the increase in PO43−concentration, and a similar inhibition effect was observed for Cd(II) adsorption with Ni(II) ion. The feasibility of regeneration was demonstrated through desorption by NaOH or HCl.

AB - The characterization results revealed that the biochar had the structure of complex aggregates containing solid minerals (FeO, Fe3O4and CaCO3) and graphitic carbon. Adsorption studies were carried out covering various parameters including pH effect, contact time, initial concentrations, competitive ions, and desorption. The adsorption of As(V) and Cd(II) reached apparent equilibrium at 180 min, and followed the pseudo-second-order kinetics. The highest equilibrium uptakes of As(V) and Cd(II) were 22.8 and 41.6 mg g−1, respectively. The adsorption isotherms were better described by Redlich-Peterson model. The decrease in As(V) adsorption was apparent with the increase in PO43−concentration, and a similar inhibition effect was observed for Cd(II) adsorption with Ni(II) ion. The feasibility of regeneration was demonstrated through desorption by NaOH or HCl.

KW - Adsorption

KW - Arsenic

KW - Cadmium

KW - Magnetic biochar

KW - Paper mill sludge

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DO - 10.1016/j.biortech.2017.07.020

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