Sorption of sulfathiazole in the soil treated with giant Miscanthus-derived biochar

effect of biochar pyrolysis temperature, soil pH, and aging period

Hyunjung Kim, Juhee Kim, Minhee Kim, Seunghun Hyun, Deok Hyun Moon

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Agricultural soil was treated with biochar (5% w/w) produced from two pyrolysis temperatures (400 and 700 °C) of giant Miscanthus (GMC-400 and GMC-700, respectively), and the subsequent sorption of sulfathiazole (STZ) was evaluated as a function of pH (2, 5, and 7) and aging period (0, 3, and 6 months). Because sorption was nonlinear, with 0.51 < N < 0.75, the linearized sorption coefficient (Kd *) was used for the comparison across samples. The Kd * of GMC-400 treatment (3.96–9.96 L kg−1) was higher than that of GMC-700 treatment (1.27–3.38 L kg−1). In laps of aging period over 6 months, the sorption of GMC-400-treated soil had gradually increased to be 3.3 times higher than that of untreated soil, whereas there was no statistical difference for GMC-700 treatment. Results of FTIR and SEM analyses revealed that the number of O-containing functional groups in the GMC-400 treatment increases and the micropores of GMC-700 are deformed over time. Sorption was also pH-dependent in the order of pH 2 > pH 5 > pH 7. The sorption hysteresis (H) index for the GMC-400 treatment was higher at pH 7 (3.99) than at pH 5(2.53), and both values had increased after 6 months (4.18 and 3.17, respectively). The results of this study clearly demonstrate that the sorption of STZ on GMC-treated soils is greatly enhanced, mainly through the greater micropore surfaces, the abundance of hydrophilic functional groups over time, and π+-π electron donor-acceptor interaction at low pH.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalEnvironmental Science and Pollution Research
DOIs
Publication statusAccepted/In press - 2017 Apr 28

Fingerprint

pyrolysis
soil temperature
Sorption
Pyrolysis
Soil
sorption
Aging of materials
Soils
Temperature
soil
hysteresis
agricultural soil
Functional groups
functional group
Hysteresis
electron
sulfathiazole
biochar
effect
Electrons

Keywords

  • Aging
  • Biochar
  • Pyrolysis temperature
  • Sorption
  • Sulfathiazole

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

@article{5a6c21ac6a5845088a4c07e8ac1b6972,
title = "Sorption of sulfathiazole in the soil treated with giant Miscanthus-derived biochar: effect of biochar pyrolysis temperature, soil pH, and aging period",
abstract = "Agricultural soil was treated with biochar (5{\%} w/w) produced from two pyrolysis temperatures (400 and 700 °C) of giant Miscanthus (GMC-400 and GMC-700, respectively), and the subsequent sorption of sulfathiazole (STZ) was evaluated as a function of pH (2, 5, and 7) and aging period (0, 3, and 6 months). Because sorption was nonlinear, with 0.51 < N < 0.75, the linearized sorption coefficient (Kd *) was used for the comparison across samples. The Kd * of GMC-400 treatment (3.96–9.96 L kg−1) was higher than that of GMC-700 treatment (1.27–3.38 L kg−1). In laps of aging period over 6 months, the sorption of GMC-400-treated soil had gradually increased to be 3.3 times higher than that of untreated soil, whereas there was no statistical difference for GMC-700 treatment. Results of FTIR and SEM analyses revealed that the number of O-containing functional groups in the GMC-400 treatment increases and the micropores of GMC-700 are deformed over time. Sorption was also pH-dependent in the order of pH 2 > pH 5 > pH 7. The sorption hysteresis (H) index for the GMC-400 treatment was higher at pH 7 (3.99) than at pH 5(2.53), and both values had increased after 6 months (4.18 and 3.17, respectively). The results of this study clearly demonstrate that the sorption of STZ on GMC-treated soils is greatly enhanced, mainly through the greater micropore surfaces, the abundance of hydrophilic functional groups over time, and π+-π electron donor-acceptor interaction at low pH.",
keywords = "Aging, Biochar, Pyrolysis temperature, Sorption, Sulfathiazole",
author = "Hyunjung Kim and Juhee Kim and Minhee Kim and Seunghun Hyun and Moon, {Deok Hyun}",
year = "2017",
month = "4",
day = "28",
doi = "10.1007/s11356-017-9049-7",
language = "English",
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TY - JOUR

T1 - Sorption of sulfathiazole in the soil treated with giant Miscanthus-derived biochar

T2 - effect of biochar pyrolysis temperature, soil pH, and aging period

AU - Kim, Hyunjung

AU - Kim, Juhee

AU - Kim, Minhee

AU - Hyun, Seunghun

AU - Moon, Deok Hyun

PY - 2017/4/28

Y1 - 2017/4/28

N2 - Agricultural soil was treated with biochar (5% w/w) produced from two pyrolysis temperatures (400 and 700 °C) of giant Miscanthus (GMC-400 and GMC-700, respectively), and the subsequent sorption of sulfathiazole (STZ) was evaluated as a function of pH (2, 5, and 7) and aging period (0, 3, and 6 months). Because sorption was nonlinear, with 0.51 < N < 0.75, the linearized sorption coefficient (Kd *) was used for the comparison across samples. The Kd * of GMC-400 treatment (3.96–9.96 L kg−1) was higher than that of GMC-700 treatment (1.27–3.38 L kg−1). In laps of aging period over 6 months, the sorption of GMC-400-treated soil had gradually increased to be 3.3 times higher than that of untreated soil, whereas there was no statistical difference for GMC-700 treatment. Results of FTIR and SEM analyses revealed that the number of O-containing functional groups in the GMC-400 treatment increases and the micropores of GMC-700 are deformed over time. Sorption was also pH-dependent in the order of pH 2 > pH 5 > pH 7. The sorption hysteresis (H) index for the GMC-400 treatment was higher at pH 7 (3.99) than at pH 5(2.53), and both values had increased after 6 months (4.18 and 3.17, respectively). The results of this study clearly demonstrate that the sorption of STZ on GMC-treated soils is greatly enhanced, mainly through the greater micropore surfaces, the abundance of hydrophilic functional groups over time, and π+-π electron donor-acceptor interaction at low pH.

AB - Agricultural soil was treated with biochar (5% w/w) produced from two pyrolysis temperatures (400 and 700 °C) of giant Miscanthus (GMC-400 and GMC-700, respectively), and the subsequent sorption of sulfathiazole (STZ) was evaluated as a function of pH (2, 5, and 7) and aging period (0, 3, and 6 months). Because sorption was nonlinear, with 0.51 < N < 0.75, the linearized sorption coefficient (Kd *) was used for the comparison across samples. The Kd * of GMC-400 treatment (3.96–9.96 L kg−1) was higher than that of GMC-700 treatment (1.27–3.38 L kg−1). In laps of aging period over 6 months, the sorption of GMC-400-treated soil had gradually increased to be 3.3 times higher than that of untreated soil, whereas there was no statistical difference for GMC-700 treatment. Results of FTIR and SEM analyses revealed that the number of O-containing functional groups in the GMC-400 treatment increases and the micropores of GMC-700 are deformed over time. Sorption was also pH-dependent in the order of pH 2 > pH 5 > pH 7. The sorption hysteresis (H) index for the GMC-400 treatment was higher at pH 7 (3.99) than at pH 5(2.53), and both values had increased after 6 months (4.18 and 3.17, respectively). The results of this study clearly demonstrate that the sorption of STZ on GMC-treated soils is greatly enhanced, mainly through the greater micropore surfaces, the abundance of hydrophilic functional groups over time, and π+-π electron donor-acceptor interaction at low pH.

KW - Aging

KW - Biochar

KW - Pyrolysis temperature

KW - Sorption

KW - Sulfathiazole

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SN - 0944-1344

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