Effect of steam activation of biochar produced from a giant Miscanthus on copper sorption and toxicity

Taeyong Shim; Jisu Yoo; Changkook Ryu; Yong Kwon Park; Jinho Jung

doi:10.1016/j.biortech.2015.08.055

Effect of steam activation of biochar produced from a giant Miscanthus on copper sorption and toxicity

Taeyong Shim, Jisu Yoo, Changkook Ryu, Yong Kwon Park, Jinho Jung

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

135 Citations (Scopus)

Abstract

This study aims to evaluate the physiochemical properties, sorption characteristics, and toxicity effects of biochar (BC) produced from Miscanthus sacchariflorus via slow pyrolysis at 500°C and its steam activation product (ABC). Although BC has a much lower surface area than ABC (181 and 322m²g^-1, respectively), the Cu sorption capacities of BC and ABC are not significantly different (p>0.05). A two-compartment model successfully explains the sorption of BC and ABC as being dominated by fast and slow sorption processes, respectively. In addition, both BC and ABC efficiently eliminate the toxicity of Cu towards Daphnia magna. However, ABC itself induced acute toxicity to D. magna, which is possibly due to increased aromaticity upon steam activation. These findings suggest that activation of BC produced from M. sacchariflorus at a pyrolytic temperature of 500°C may not be appropriate in terms of Cu sorption and toxicity reduction.

Original language	English
Pages (from-to)	85-90
Number of pages	6
Journal	Bioresource technology
Volume	197
DOIs	https://doi.org/10.1016/j.biortech.2015.08.055
Publication status	Published - 2015 Dec 1

Bibliographical note

Funding Information:
This study was supported by the Korea Ministry of Environment as ‘‘Development of integrated model for climate change impact and vulnerability assessment’’ and by a project from the Cooperative Research Program for Agriculture Science & Technology Development of the Rural Development Administration (Project No. PJ0079662011).

Publisher Copyright:
© 2015 Elsevier Ltd.

Keywords

Acute toxicity
Biochar
Heavy metals
Sorption
Steam activation

ASJC Scopus subject areas

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2015.08.055

Cite this

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title = "Effect of steam activation of biochar produced from a giant Miscanthus on copper sorption and toxicity",

abstract = "This study aims to evaluate the physiochemical properties, sorption characteristics, and toxicity effects of biochar (BC) produced from Miscanthus sacchariflorus via slow pyrolysis at 500°C and its steam activation product (ABC). Although BC has a much lower surface area than ABC (181 and 322m2g-1, respectively), the Cu sorption capacities of BC and ABC are not significantly different (p>0.05). A two-compartment model successfully explains the sorption of BC and ABC as being dominated by fast and slow sorption processes, respectively. In addition, both BC and ABC efficiently eliminate the toxicity of Cu towards Daphnia magna. However, ABC itself induced acute toxicity to D. magna, which is possibly due to increased aromaticity upon steam activation. These findings suggest that activation of BC produced from M. sacchariflorus at a pyrolytic temperature of 500°C may not be appropriate in terms of Cu sorption and toxicity reduction.",

keywords = "Acute toxicity, Biochar, Heavy metals, Sorption, Steam activation",

author = "Taeyong Shim and Jisu Yoo and Changkook Ryu and Park, {Yong Kwon} and Jinho Jung",

note = "Funding Information: This study was supported by the Korea Ministry of Environment as {\textquoteleft}{\textquoteleft}Development of integrated model for climate change impact and vulnerability assessment{\textquoteright}{\textquoteright} and by a project from the Cooperative Research Program for Agriculture Science & Technology Development of the Rural Development Administration (Project No. PJ0079662011). Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

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AU - Shim, Taeyong

AU - Yoo, Jisu

AU - Ryu, Changkook

AU - Park, Yong Kwon

AU - Jung, Jinho

N1 - Funding Information: This study was supported by the Korea Ministry of Environment as ‘‘Development of integrated model for climate change impact and vulnerability assessment’’ and by a project from the Cooperative Research Program for Agriculture Science & Technology Development of the Rural Development Administration (Project No. PJ0079662011). Publisher Copyright: © 2015 Elsevier Ltd.

PY - 2015/12/1

Y1 - 2015/12/1

N2 - This study aims to evaluate the physiochemical properties, sorption characteristics, and toxicity effects of biochar (BC) produced from Miscanthus sacchariflorus via slow pyrolysis at 500°C and its steam activation product (ABC). Although BC has a much lower surface area than ABC (181 and 322m2g-1, respectively), the Cu sorption capacities of BC and ABC are not significantly different (p>0.05). A two-compartment model successfully explains the sorption of BC and ABC as being dominated by fast and slow sorption processes, respectively. In addition, both BC and ABC efficiently eliminate the toxicity of Cu towards Daphnia magna. However, ABC itself induced acute toxicity to D. magna, which is possibly due to increased aromaticity upon steam activation. These findings suggest that activation of BC produced from M. sacchariflorus at a pyrolytic temperature of 500°C may not be appropriate in terms of Cu sorption and toxicity reduction.

AB - This study aims to evaluate the physiochemical properties, sorption characteristics, and toxicity effects of biochar (BC) produced from Miscanthus sacchariflorus via slow pyrolysis at 500°C and its steam activation product (ABC). Although BC has a much lower surface area than ABC (181 and 322m2g-1, respectively), the Cu sorption capacities of BC and ABC are not significantly different (p>0.05). A two-compartment model successfully explains the sorption of BC and ABC as being dominated by fast and slow sorption processes, respectively. In addition, both BC and ABC efficiently eliminate the toxicity of Cu towards Daphnia magna. However, ABC itself induced acute toxicity to D. magna, which is possibly due to increased aromaticity upon steam activation. These findings suggest that activation of BC produced from M. sacchariflorus at a pyrolytic temperature of 500°C may not be appropriate in terms of Cu sorption and toxicity reduction.

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KW - Heavy metals

KW - Sorption

KW - Steam activation

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Effect of steam activation of biochar produced from a giant Miscanthus on copper sorption and toxicity

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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