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 journalArticle

30 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 322m<sup>2</sup>g<sup>-1</sup>, 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 languageEnglish
Article number15408
Pages (from-to)85-90
Number of pages6
JournalBioresource Technology
Volume197
DOIs
Publication statusPublished - 2015 Dec 1

Fingerprint

Steam
Toxicity
Sorption
Copper
sorption
Chemical activation
copper
toxicity
pyrolysis
Pyrolysis
surface area
biochar
effect
temperature
Temperature

Keywords

  • Acute toxicity
  • Biochar
  • Heavy metals
  • Sorption
  • Steam activation

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Cite this

Effect of steam activation of biochar produced from a giant Miscanthus on copper sorption and toxicity. / Shim, Taeyong; Yoo, Jisu; Ryu, Changkook; Park, Yong Kwon; Jung, Jinho.

In: Bioresource Technology, Vol. 197, 15408, 01.12.2015, p. 85-90.

Research output: Contribution to journalArticle

Shim, Taeyong ; Yoo, Jisu ; Ryu, Changkook ; Park, Yong Kwon ; Jung, Jinho. / Effect of steam activation of biochar produced from a giant Miscanthus on copper sorption and toxicity. In: Bioresource Technology. 2015 ; Vol. 197. pp. 85-90.
@article{66d06f2ef2974217a6c1e5234e9f465d,
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",
year = "2015",
month = "12",
day = "1",
doi = "10.1016/j.biortech.2015.08.055",
language = "English",
volume = "197",
pages = "85--90",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Effect of steam activation of biochar produced from a giant Miscanthus on copper sorption and toxicity

AU - Shim, Taeyong

AU - Yoo, Jisu

AU - Ryu, Changkook

AU - Park, Yong Kwon

AU - Jung, Jinho

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.

KW - Acute toxicity

KW - Biochar

KW - Heavy metals

KW - Sorption

KW - Steam activation

UR - http://www.scopus.com/inward/record.url?scp=84940052817&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84940052817&partnerID=8YFLogxK

U2 - 10.1016/j.biortech.2015.08.055

DO - 10.1016/j.biortech.2015.08.055

M3 - Article

VL - 197

SP - 85

EP - 90

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

M1 - 15408

ER -