Residual perfluorochemicals in the biochar from sewage sludge

Jin Hyo Kim; Yong Sik Ok; Geun Hyoung Choi; Byung Jun Park

doi:10.1016/j.chemosphere.2015.05.012

Residual perfluorochemicals in the biochar from sewage sludge

Jin Hyo Kim, Yong Sik Ok, Geun Hyoung Choi, Byung Jun Park

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

34 Citations (Scopus)

Abstract

Biochar has been recently considered as a candidate for soil amendment and soil remediation. Some pollutants have been screened in the biochar for safety purposes except for perfluorochemicals (PFCs). In this study, the contamination of biochars from plant residues and sewage sludge with perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) was examined. The total residual concentrations of PFOA and PFOS in the sludge biochar were 15.8-16.9. ng/g and these values did not decrease significantly after pyrolysis. On the other hand, these PFCs were not found in the biochar from plant sources. In conclusion, the use of the sludge biochar in the agricultural environment should be re-evaluated, since the concentrations of PFCs in the sewage sludge showed no significant decrease after thermal process.

Original language	English
Pages (from-to)	435-437
Number of pages	3
Journal	Chemosphere
Volume	134
DOIs	https://doi.org/10.1016/j.chemosphere.2015.05.012
Publication status	Published - 2015 Sept 1
Externally published	Yes

Keywords

Biochar
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Sludge

ASJC Scopus subject areas

Environmental Engineering
Chemistry(all)
Environmental Chemistry
Pollution
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

UN SDGs

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

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10.1016/j.chemosphere.2015.05.012

Cite this

@article{a883fdad74e245018205566533ecfaa7,

title = "Residual perfluorochemicals in the biochar from sewage sludge",

abstract = "Biochar has been recently considered as a candidate for soil amendment and soil remediation. Some pollutants have been screened in the biochar for safety purposes except for perfluorochemicals (PFCs). In this study, the contamination of biochars from plant residues and sewage sludge with perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) was examined. The total residual concentrations of PFOA and PFOS in the sludge biochar were 15.8-16.9. ng/g and these values did not decrease significantly after pyrolysis. On the other hand, these PFCs were not found in the biochar from plant sources. In conclusion, the use of the sludge biochar in the agricultural environment should be re-evaluated, since the concentrations of PFCs in the sewage sludge showed no significant decrease after thermal process.",

keywords = "Biochar, Perfluorooctanesulfonic acid (PFOS), Perfluorooctanoic acid (PFOA), Sludge",

author = "Kim, {Jin Hyo} and Ok, {Yong Sik} and Choi, {Geun Hyoung} and Park, {Byung Jun}",

note = "Funding Information: This study was carried out with the support of the “ Research Program for Agricultural Science & Technology Development ( PJ009301 )”, Rural Development Administration, Republic of Korea . Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = sep,

day = "1",

doi = "10.1016/j.chemosphere.2015.05.012",

language = "English",

volume = "134",

pages = "435--437",

journal = "Chemosphere",

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T1 - Residual perfluorochemicals in the biochar from sewage sludge

AU - Kim, Jin Hyo

AU - Ok, Yong Sik

AU - Choi, Geun Hyoung

AU - Park, Byung Jun

N1 - Funding Information: This study was carried out with the support of the “ Research Program for Agricultural Science & Technology Development ( PJ009301 )”, Rural Development Administration, Republic of Korea . Publisher Copyright: © 2015 Elsevier Ltd.

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Biochar has been recently considered as a candidate for soil amendment and soil remediation. Some pollutants have been screened in the biochar for safety purposes except for perfluorochemicals (PFCs). In this study, the contamination of biochars from plant residues and sewage sludge with perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) was examined. The total residual concentrations of PFOA and PFOS in the sludge biochar were 15.8-16.9. ng/g and these values did not decrease significantly after pyrolysis. On the other hand, these PFCs were not found in the biochar from plant sources. In conclusion, the use of the sludge biochar in the agricultural environment should be re-evaluated, since the concentrations of PFCs in the sewage sludge showed no significant decrease after thermal process.

AB - Biochar has been recently considered as a candidate for soil amendment and soil remediation. Some pollutants have been screened in the biochar for safety purposes except for perfluorochemicals (PFCs). In this study, the contamination of biochars from plant residues and sewage sludge with perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) was examined. The total residual concentrations of PFOA and PFOS in the sludge biochar were 15.8-16.9. ng/g and these values did not decrease significantly after pyrolysis. On the other hand, these PFCs were not found in the biochar from plant sources. In conclusion, the use of the sludge biochar in the agricultural environment should be re-evaluated, since the concentrations of PFCs in the sewage sludge showed no significant decrease after thermal process.

KW - Biochar

KW - Perfluorooctanesulfonic acid (PFOS)

KW - Perfluorooctanoic acid (PFOA)

KW - Sludge

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U2 - 10.1016/j.chemosphere.2015.05.012

DO - 10.1016/j.chemosphere.2015.05.012

M3 - Article

C2 - 25989522

AN - SCOPUS:84930585340

SN - 0045-6535

VL - 134

SP - 435

EP - 437

JO - Chemosphere

JF - Chemosphere

ER -

Residual perfluorochemicals in the biochar from sewage sludge

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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