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Title: Combining Phytoremediation with Soil Flushing for Arsenic Removal from Contaminated Soil

Abstract

Arsenic (As) contamination poses a high risk to public health in China. Remediation of soil As contamination is an urgent need. Development of more effective remediation technologies is crucial in order to achieve remediation goals. In this study, pot experiments were carried out to study the As removal effectiveness of planting Pteris vittata L. (P.v.) and Lolium multiflorum L. (L.m.) in combination with in situ soil flushing using monopotassium phosphate (KH 2PO 4) solutions. Results showed that planting P.v. and L.m. in combination with 8 days of KH 2PO 4 solution soil flushing achieved 35.20% and 52.93%. As removal efficiency in the rhizosphere soil, respectively, which was significantly higher than 9.14% removal from soil flushing alone. Results also indicated that planting P.v. and L.m. changed the speciation of As to labile form, facilitating As removal from soil. Growing P.v. with in situ KH 2PO 4 flushing was more effective in remediating As-contaminated agricultural soil; L.m. could not be used in place of P.v to achieve the same remediation efficiency. This research provides an important guidance on plant screening for phytoremediation in combination with in situ flushing to remediate As-contaminated soil.

Authors:
 [1];  [2];  [3];  [2]
  1. Office of Environmental Geography and Human Health, Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
  2. Office of Environmental Geography and Human Health, Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
  3. Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1496821
Report Number(s):
PNNL-SA-133336
Journal ID: ISSN 1522-6514
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
International Journal of Phytoremediation
Additional Journal Information:
Journal Volume: 20; Journal Issue: 12; Journal ID: ISSN 1522-6514
Country of Publication:
United States
Language:
English

Citation Formats

Yan, Xiulan, Liu, Chuchen, Zhong, Lirong, and Wang, Jianyi. Combining Phytoremediation with Soil Flushing for Arsenic Removal from Contaminated Soil. United States: N. p., 2017. Web. doi:10.1080/15226514.2018.1460309.
Yan, Xiulan, Liu, Chuchen, Zhong, Lirong, & Wang, Jianyi. Combining Phytoremediation with Soil Flushing for Arsenic Removal from Contaminated Soil. United States. doi:10.1080/15226514.2018.1460309.
Yan, Xiulan, Liu, Chuchen, Zhong, Lirong, and Wang, Jianyi. Mon . "Combining Phytoremediation with Soil Flushing for Arsenic Removal from Contaminated Soil". United States. doi:10.1080/15226514.2018.1460309.
@article{osti_1496821,
title = {Combining Phytoremediation with Soil Flushing for Arsenic Removal from Contaminated Soil},
author = {Yan, Xiulan and Liu, Chuchen and Zhong, Lirong and Wang, Jianyi},
abstractNote = {Arsenic (As) contamination poses a high risk to public health in China. Remediation of soil As contamination is an urgent need. Development of more effective remediation technologies is crucial in order to achieve remediation goals. In this study, pot experiments were carried out to study the As removal effectiveness of planting Pteris vittata L. (P.v.) and Lolium multiflorum L. (L.m.) in combination with in situ soil flushing using monopotassium phosphate (KH2PO4) solutions. Results showed that planting P.v. and L.m. in combination with 8 days of KH2PO4 solution soil flushing achieved 35.20% and 52.93%. As removal efficiency in the rhizosphere soil, respectively, which was significantly higher than 9.14% removal from soil flushing alone. Results also indicated that planting P.v. and L.m. changed the speciation of As to labile form, facilitating As removal from soil. Growing P.v. with in situ KH2PO4 flushing was more effective in remediating As-contaminated agricultural soil; L.m. could not be used in place of P.v to achieve the same remediation efficiency. This research provides an important guidance on plant screening for phytoremediation in combination with in situ flushing to remediate As-contaminated soil.},
doi = {10.1080/15226514.2018.1460309},
journal = {International Journal of Phytoremediation},
issn = {1522-6514},
number = 12,
volume = 20,
place = {United States},
year = {2017},
month = {6}
}

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