Fractionation behaviors of Cu, Zn, and S-O isotopes in groundwater contaminated with petroleum and treated by oxidation

Duk Min Kim; Woong Lim Lim; Dae Gyu Im; Jung Woo Hwang; Soonyoung Yu; Seong Taek Yun; Jeong Hee Kim

doi:10.1016/j.jhazmat.2023.131901

Fractionation behaviors of Cu, Zn, and S-O isotopes in groundwater contaminated with petroleum and treated by oxidation

Duk Min Kim, Woong Lim Lim, Dae Gyu Im, Jung Woo Hwang, Soonyoung Yu, Seong Taek Yun, Jeong Hee Kim

Department of Earth and Environmental Sciences

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

2 Citations (Scopus)

Abstract

Fractionation behaviors of Cu and Zn isotopes have been increasingly studied at the field scale, but those in various redox conditions of groundwater contaminated with petroleum and treated by oxidation have not been assessed. In this study, δ⁶⁵Cu and δ⁶⁶Zn as well as δ³⁴S_SO4 and Δδ¹⁸O_SO4-H2O were assessed in wells undergoing contamination by total petroleum hydrocarbons (TPH) and oxidation using H₂O₂ in 2021 and 2022. High δ³⁴S_SO4 and relevant parameters (e.g., dissolved sulfide and HCO₃^-) indicated the occurrence of sulfate reduction. The plot of δ⁶⁵Cu versus δ³⁴S_SO4 effectively indicated precipitation of Cu sulfides and their reoxidation at oxidation wells. Although the plot of δ⁶⁶Zn versus δ³⁴S_SO4 could also indicate reoxidation of Zn sulfides, the Zn isotopic fingerprint of sulfide precipitation may have been masked by fractionation by sorption. The advantage of using δ⁶⁵Cu in the redox reactions resulted from the wider range of δ⁶⁵Cu owing to the redox behavior of Cu. The plot combining isotopic fractionations of Cu and S can assist in assessing sulfide precipitation and oxidative treatment in TPH-contaminated groundwater.

Original language	English
Article number	131901
Journal	Journal of hazardous materials
Volume	458
DOIs	https://doi.org/10.1016/j.jhazmat.2023.131901
Publication status	Published - 2023 Sept 15

Bibliographical note

Funding Information:
This research was partly supported by the Korea Environmental Industry and Technology Institute (KEITI) through a project (Integrated environmental forensic approaches to trace sources and pathways of subsurface contaminants) funded by the Korea Ministry of Environment (MOE) (2021002440003). This research was also partly supported by the Development of Source Identification and Apportionment Methods for Toxic Substances in Marine Environments Program of the Korea Institute of Marine Science & Technology Promotion (KIMST) funded by the Ministry of Oceans and Fisheries (KIMST-20220534). The authors gratefully acknowledge the contributions of Ms. Hye-Lim Kwon at Sangji University in conducting pretreatments and analyses. Special thanks go to anonymous reviewers for providing constructive comments that helped to improve the manuscript.

Funding Information:
This research was partly supported by the Korea Environmental Industry and Technology Institute ( KEITI ) through a project (Integrated environmental forensic approaches to trace sources and pathways of subsurface contaminants) funded by the Korea Ministry of Environment ( MOE ) ( 2021002440003 ). This research was also partly supported by the Development of Source Identification and Apportionment Methods for Toxic Substances in Marine Environments Program of the Korea Institute of Marine Science & Technology Promotion ( KIMST ) funded by the Ministry of Oceans and Fisheries ( KIMST-20220534 ). The authors gratefully acknowledge the contributions of Ms. Hye-Lim Kwon at Sangji University in conducting pretreatments and analyses. Special thanks go to anonymous reviewers for providing constructive comments that helped to improve the manuscript.

Publisher Copyright:
© 2023 Elsevier B.V.

Keywords

Oxidative treatment
Sulfate reduction
Sulfide oxidation
Sulfide precipitation
TPH

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

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10.1016/j.jhazmat.2023.131901

Cite this

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title = "Fractionation behaviors of Cu, Zn, and S-O isotopes in groundwater contaminated with petroleum and treated by oxidation",

abstract = "Fractionation behaviors of Cu and Zn isotopes have been increasingly studied at the field scale, but those in various redox conditions of groundwater contaminated with petroleum and treated by oxidation have not been assessed. In this study, δ65Cu and δ66Zn as well as δ34SSO4 and Δδ18OSO4-H2O were assessed in wells undergoing contamination by total petroleum hydrocarbons (TPH) and oxidation using H2O2 in 2021 and 2022. High δ34SSO4 and relevant parameters (e.g., dissolved sulfide and HCO3-) indicated the occurrence of sulfate reduction. The plot of δ65Cu versus δ34SSO4 effectively indicated precipitation of Cu sulfides and their reoxidation at oxidation wells. Although the plot of δ66Zn versus δ34SSO4 could also indicate reoxidation of Zn sulfides, the Zn isotopic fingerprint of sulfide precipitation may have been masked by fractionation by sorption. The advantage of using δ65Cu in the redox reactions resulted from the wider range of δ65Cu owing to the redox behavior of Cu. The plot combining isotopic fractionations of Cu and S can assist in assessing sulfide precipitation and oxidative treatment in TPH-contaminated groundwater.",

keywords = "Oxidative treatment, Sulfate reduction, Sulfide oxidation, Sulfide precipitation, TPH",

author = "Kim, {Duk Min} and Lim, {Woong Lim} and Im, {Dae Gyu} and Hwang, {Jung Woo} and Soonyoung Yu and Yun, {Seong Taek} and Kim, {Jeong Hee}",

note = "Funding Information: This research was partly supported by the Korea Environmental Industry and Technology Institute (KEITI) through a project (Integrated environmental forensic approaches to trace sources and pathways of subsurface contaminants) funded by the Korea Ministry of Environment (MOE) (2021002440003). This research was also partly supported by the Development of Source Identification and Apportionment Methods for Toxic Substances in Marine Environments Program of the Korea Institute of Marine Science & Technology Promotion (KIMST) funded by the Ministry of Oceans and Fisheries (KIMST-20220534). The authors gratefully acknowledge the contributions of Ms. Hye-Lim Kwon at Sangji University in conducting pretreatments and analyses. Special thanks go to anonymous reviewers for providing constructive comments that helped to improve the manuscript. Funding Information: This research was partly supported by the Korea Environmental Industry and Technology Institute ( KEITI ) through a project (Integrated environmental forensic approaches to trace sources and pathways of subsurface contaminants) funded by the Korea Ministry of Environment ( MOE ) ( 2021002440003 ). This research was also partly supported by the Development of Source Identification and Apportionment Methods for Toxic Substances in Marine Environments Program of the Korea Institute of Marine Science & Technology Promotion ( KIMST ) funded by the Ministry of Oceans and Fisheries ( KIMST-20220534 ). The authors gratefully acknowledge the contributions of Ms. Hye-Lim Kwon at Sangji University in conducting pretreatments and analyses. Special thanks go to anonymous reviewers for providing constructive comments that helped to improve the manuscript. Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

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T1 - Fractionation behaviors of Cu, Zn, and S-O isotopes in groundwater contaminated with petroleum and treated by oxidation

AU - Kim, Duk Min

AU - Lim, Woong Lim

AU - Im, Dae Gyu

AU - Hwang, Jung Woo

AU - Yu, Soonyoung

AU - Yun, Seong Taek

AU - Kim, Jeong Hee

N1 - Funding Information: This research was partly supported by the Korea Environmental Industry and Technology Institute (KEITI) through a project (Integrated environmental forensic approaches to trace sources and pathways of subsurface contaminants) funded by the Korea Ministry of Environment (MOE) (2021002440003). This research was also partly supported by the Development of Source Identification and Apportionment Methods for Toxic Substances in Marine Environments Program of the Korea Institute of Marine Science & Technology Promotion (KIMST) funded by the Ministry of Oceans and Fisheries (KIMST-20220534). The authors gratefully acknowledge the contributions of Ms. Hye-Lim Kwon at Sangji University in conducting pretreatments and analyses. Special thanks go to anonymous reviewers for providing constructive comments that helped to improve the manuscript. Funding Information: This research was partly supported by the Korea Environmental Industry and Technology Institute ( KEITI ) through a project (Integrated environmental forensic approaches to trace sources and pathways of subsurface contaminants) funded by the Korea Ministry of Environment ( MOE ) ( 2021002440003 ). This research was also partly supported by the Development of Source Identification and Apportionment Methods for Toxic Substances in Marine Environments Program of the Korea Institute of Marine Science & Technology Promotion ( KIMST ) funded by the Ministry of Oceans and Fisheries ( KIMST-20220534 ). The authors gratefully acknowledge the contributions of Ms. Hye-Lim Kwon at Sangji University in conducting pretreatments and analyses. Special thanks go to anonymous reviewers for providing constructive comments that helped to improve the manuscript. Publisher Copyright: © 2023 Elsevier B.V.

PY - 2023/9/15

Y1 - 2023/9/15

N2 - Fractionation behaviors of Cu and Zn isotopes have been increasingly studied at the field scale, but those in various redox conditions of groundwater contaminated with petroleum and treated by oxidation have not been assessed. In this study, δ65Cu and δ66Zn as well as δ34SSO4 and Δδ18OSO4-H2O were assessed in wells undergoing contamination by total petroleum hydrocarbons (TPH) and oxidation using H2O2 in 2021 and 2022. High δ34SSO4 and relevant parameters (e.g., dissolved sulfide and HCO3-) indicated the occurrence of sulfate reduction. The plot of δ65Cu versus δ34SSO4 effectively indicated precipitation of Cu sulfides and their reoxidation at oxidation wells. Although the plot of δ66Zn versus δ34SSO4 could also indicate reoxidation of Zn sulfides, the Zn isotopic fingerprint of sulfide precipitation may have been masked by fractionation by sorption. The advantage of using δ65Cu in the redox reactions resulted from the wider range of δ65Cu owing to the redox behavior of Cu. The plot combining isotopic fractionations of Cu and S can assist in assessing sulfide precipitation and oxidative treatment in TPH-contaminated groundwater.

AB - Fractionation behaviors of Cu and Zn isotopes have been increasingly studied at the field scale, but those in various redox conditions of groundwater contaminated with petroleum and treated by oxidation have not been assessed. In this study, δ65Cu and δ66Zn as well as δ34SSO4 and Δδ18OSO4-H2O were assessed in wells undergoing contamination by total petroleum hydrocarbons (TPH) and oxidation using H2O2 in 2021 and 2022. High δ34SSO4 and relevant parameters (e.g., dissolved sulfide and HCO3-) indicated the occurrence of sulfate reduction. The plot of δ65Cu versus δ34SSO4 effectively indicated precipitation of Cu sulfides and their reoxidation at oxidation wells. Although the plot of δ66Zn versus δ34SSO4 could also indicate reoxidation of Zn sulfides, the Zn isotopic fingerprint of sulfide precipitation may have been masked by fractionation by sorption. The advantage of using δ65Cu in the redox reactions resulted from the wider range of δ65Cu owing to the redox behavior of Cu. The plot combining isotopic fractionations of Cu and S can assist in assessing sulfide precipitation and oxidative treatment in TPH-contaminated groundwater.

KW - Oxidative treatment

KW - Sulfate reduction

KW - Sulfide oxidation

KW - Sulfide precipitation

KW - TPH

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DO - 10.1016/j.jhazmat.2023.131901

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C2 - 37356179

AN - SCOPUS:85162939120

SN - 0304-3894

VL - 458

JO - Journal of hazardous materials

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M1 - 131901

ER -

Fractionation behaviors of Cu, Zn, and S-O isotopes in groundwater contaminated with petroleum and treated by oxidation

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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