The study on a cost-effective ionic liquid for sustainable heavy metal-contaminated soil remediation
Abstract Over one-third of global terrestrial resources are contaminated by pollutants such as heavy metals, POPs, and PAHs, with more than five million soil sites exceeding regulatory heavy metal levels. This study evaluates the performance of a lab-synthesized ionic liquid, triethylammonium hydrog...
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| Format: | Article |
| Language: | English |
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Springer
2025-06-01
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| Series: | Discover Soil |
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| Online Access: | https://doi.org/10.1007/s44378-025-00067-y |
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| author | Yiran Fan Wafa Dastyar Xiaoyan Wang Simon Zhao Wenyi Yuan |
| author_facet | Yiran Fan Wafa Dastyar Xiaoyan Wang Simon Zhao Wenyi Yuan |
| author_sort | Yiran Fan |
| collection | DOAJ |
| description | Abstract Over one-third of global terrestrial resources are contaminated by pollutants such as heavy metals, POPs, and PAHs, with more than five million soil sites exceeding regulatory heavy metal levels. This study evaluates the performance of a lab-synthesized ionic liquid, triethylammonium hydrogen sulfate ([TEA][HSO4]), in removing heavy metals from soil via phytoextraction. Response surface methodology (RSM) was applied to model the relationship between the experimental conditions and the removal efficacy of heavy metal, including Cd, Mn, Fe, Zn, Ni, Pb and As (metalloid). The operation parameters have been decided as temperature, the ratio of IL and soil and residence time. Under the optimum condition (temperature of 75 °C, IL:soil mass ratio of 30:1, and reaction time of 8 h), the [TEA][HSO4] ionic liquid synthesized in this study achieves as high removal efficiency as 98.7% for Cd, 93.9% for As, 93.0% for Mn, 61.0% for Fe, 59.5% for Zn, 51.9% for Ni and 31.8% for Pb. The novelty of this work lies not only in the high removal efficiency achieved using [TEA][HSO4], but also in its significant contribution to advancing soil remediation techniques for heavy metal contamination, minimizing negative environmental impacts on soil structure and ecosystems. |
| format | Article |
| id | doaj-art-2820be14965d4b41b523312a55fac8ac |
| institution | DOAJ |
| issn | 3005-1223 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Springer |
| record_format | Article |
| series | Discover Soil |
| spelling | doaj-art-2820be14965d4b41b523312a55fac8ac2025-08-20T03:20:59ZengSpringerDiscover Soil3005-12232025-06-012111310.1007/s44378-025-00067-yThe study on a cost-effective ionic liquid for sustainable heavy metal-contaminated soil remediationYiran Fan0Wafa Dastyar1Xiaoyan Wang2Simon Zhao3Wenyi Yuan4Beijing Climate Change Management CenterSchool of Environment, Tsinghua UniversitySchool of Resources and Environmental Engineering, Shanghai Polytechnic UniversitySchool of Environment, Tsinghua UniversitySchool of Resources and Environmental Engineering, Shanghai Polytechnic UniversityAbstract Over one-third of global terrestrial resources are contaminated by pollutants such as heavy metals, POPs, and PAHs, with more than five million soil sites exceeding regulatory heavy metal levels. This study evaluates the performance of a lab-synthesized ionic liquid, triethylammonium hydrogen sulfate ([TEA][HSO4]), in removing heavy metals from soil via phytoextraction. Response surface methodology (RSM) was applied to model the relationship between the experimental conditions and the removal efficacy of heavy metal, including Cd, Mn, Fe, Zn, Ni, Pb and As (metalloid). The operation parameters have been decided as temperature, the ratio of IL and soil and residence time. Under the optimum condition (temperature of 75 °C, IL:soil mass ratio of 30:1, and reaction time of 8 h), the [TEA][HSO4] ionic liquid synthesized in this study achieves as high removal efficiency as 98.7% for Cd, 93.9% for As, 93.0% for Mn, 61.0% for Fe, 59.5% for Zn, 51.9% for Ni and 31.8% for Pb. The novelty of this work lies not only in the high removal efficiency achieved using [TEA][HSO4], but also in its significant contribution to advancing soil remediation techniques for heavy metal contamination, minimizing negative environmental impacts on soil structure and ecosystems.https://doi.org/10.1007/s44378-025-00067-yIonic liquid (IL)[TEA][HSO4]Heavy metalSoil remediationSoil washing |
| spellingShingle | Yiran Fan Wafa Dastyar Xiaoyan Wang Simon Zhao Wenyi Yuan The study on a cost-effective ionic liquid for sustainable heavy metal-contaminated soil remediation Discover Soil Ionic liquid (IL) [TEA][HSO4] Heavy metal Soil remediation Soil washing |
| title | The study on a cost-effective ionic liquid for sustainable heavy metal-contaminated soil remediation |
| title_full | The study on a cost-effective ionic liquid for sustainable heavy metal-contaminated soil remediation |
| title_fullStr | The study on a cost-effective ionic liquid for sustainable heavy metal-contaminated soil remediation |
| title_full_unstemmed | The study on a cost-effective ionic liquid for sustainable heavy metal-contaminated soil remediation |
| title_short | The study on a cost-effective ionic liquid for sustainable heavy metal-contaminated soil remediation |
| title_sort | study on a cost effective ionic liquid for sustainable heavy metal contaminated soil remediation |
| topic | Ionic liquid (IL) [TEA][HSO4] Heavy metal Soil remediation Soil washing |
| url | https://doi.org/10.1007/s44378-025-00067-y |
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