Coupling electrokinetic remediation with ryegrass for the synergistic remediation of Cd and C14 alkane co-contaminated soil
Electrokinetic coupled with phytoremediation (EKPR) is an innovative technology to remediate heavy metals or petroleum hydrocarbons polluted soils. However, the feasibility and mechanism of EKPR remediation heavy metals and petroleum hydrocarbons co-contaminated soil are still unknown. This study ev...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Current Research in Biotechnology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590262824000285 |
| _version_ | 1797220526139113472 |
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| author | Lizhu Yuan Shuhai Guo Yang Wu Bo Wu Fenglian Cheng Jinghao Gao Xiaowu Huang |
| author_facet | Lizhu Yuan Shuhai Guo Yang Wu Bo Wu Fenglian Cheng Jinghao Gao Xiaowu Huang |
| author_sort | Lizhu Yuan |
| collection | DOAJ |
| description | Electrokinetic coupled with phytoremediation (EKPR) is an innovative technology to remediate heavy metals or petroleum hydrocarbons polluted soils. However, the feasibility and mechanism of EKPR remediation heavy metals and petroleum hydrocarbons co-contaminated soil are still unknown. This study evaluated the feasibility and potency of coupling EK remediation with Lolium perenne L. (ryegrass) (EKRG) in remediating the cadmium (Cd) and C14 alkane co-contaminated soil. The ryegrass biomass, Cd uptake amount, C14 alkane removal and soil bacterial community were determined for different soil sections of the EKRG treatment. Results indicated that the polarity reversal direct current electric field increased the total Cd uptake amount of ryegrass to 17.95 μg, most likely due to an increase of 41.7 % of the ryegrass shoot biomass. The ryegrass shoots, in the initial anode section of EKRG treatment, acquired an increment in biomass by 82.1 % and Cd uptake amount by 67.1 %, corresponding to 1.02 g and 7.76 μg, respectively. The EKRG treatment boosted the removal of C14 alkane in comparison with the mono-treatment of ryegrass or EK, i.e., increasing by 28.4 % and 36.5 %, respectively. Microbial community analysis suggested that the EKRG treatment promoted the relative abundances of hydrocarbons degrading bacteria, potentially responding to the enhanced removal of C14 alkane. Further, the correlation analysis showed that the removal of C14 alkane was positively correlated with the ryegrass biomass and Cd uptake amount in the EKRG treatment, which again validated that the addition of electric field benefited the remediation of Cd and the removal of C14 alkane. These results together indicated that the electric field assisted phytoremediation would be an effective approach for remediating the Cd and C14 alkane co-contaminated soils. |
| first_indexed | 2024-04-24T12:50:56Z |
| format | Article |
| id | doaj.art-4345d4bb8fb04c5b873d360f5f0f7ad9 |
| institution | Directory Open Access Journal |
| issn | 2590-2628 |
| language | English |
| last_indexed | 2024-04-24T12:50:56Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Current Research in Biotechnology |
| spelling | doaj.art-4345d4bb8fb04c5b873d360f5f0f7ad92024-04-06T04:40:32ZengElsevierCurrent Research in Biotechnology2590-26282024-01-017100202Coupling electrokinetic remediation with ryegrass for the synergistic remediation of Cd and C14 alkane co-contaminated soilLizhu Yuan0Shuhai Guo1Yang Wu2Bo Wu3Fenglian Cheng4Jinghao Gao5Xiaowu Huang6Research Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan 523808, ChinaNational-Local Joint Engineering Laboratory of Contaminated Soil Remediation by Bio-physicochemical Synergistic Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; Corresponding author.School of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang 110870, ChinaNational-Local Joint Engineering Laboratory of Contaminated Soil Remediation by Bio-physicochemical Synergistic Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, ChinaNational-Local Joint Engineering Laboratory of Contaminated Soil Remediation by Bio-physicochemical Synergistic Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, ChinaDepartment of Environmental Science and Engineering, Guangdong Technion-Israel Institute of Technology, Shantou 515063, ChinaDepartment of Environmental Science and Engineering, Guangdong Technion-Israel Institute of Technology, Shantou 515063, China; Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion-Israel Institute of Technology, Shantou 515063, ChinaElectrokinetic coupled with phytoremediation (EKPR) is an innovative technology to remediate heavy metals or petroleum hydrocarbons polluted soils. However, the feasibility and mechanism of EKPR remediation heavy metals and petroleum hydrocarbons co-contaminated soil are still unknown. This study evaluated the feasibility and potency of coupling EK remediation with Lolium perenne L. (ryegrass) (EKRG) in remediating the cadmium (Cd) and C14 alkane co-contaminated soil. The ryegrass biomass, Cd uptake amount, C14 alkane removal and soil bacterial community were determined for different soil sections of the EKRG treatment. Results indicated that the polarity reversal direct current electric field increased the total Cd uptake amount of ryegrass to 17.95 μg, most likely due to an increase of 41.7 % of the ryegrass shoot biomass. The ryegrass shoots, in the initial anode section of EKRG treatment, acquired an increment in biomass by 82.1 % and Cd uptake amount by 67.1 %, corresponding to 1.02 g and 7.76 μg, respectively. The EKRG treatment boosted the removal of C14 alkane in comparison with the mono-treatment of ryegrass or EK, i.e., increasing by 28.4 % and 36.5 %, respectively. Microbial community analysis suggested that the EKRG treatment promoted the relative abundances of hydrocarbons degrading bacteria, potentially responding to the enhanced removal of C14 alkane. Further, the correlation analysis showed that the removal of C14 alkane was positively correlated with the ryegrass biomass and Cd uptake amount in the EKRG treatment, which again validated that the addition of electric field benefited the remediation of Cd and the removal of C14 alkane. These results together indicated that the electric field assisted phytoremediation would be an effective approach for remediating the Cd and C14 alkane co-contaminated soils.http://www.sciencedirect.com/science/article/pii/S2590262824000285Electric fieldPhytoremediationCd and C14 alkane co-contaminated soilSoil bacterial community |
| spellingShingle | Lizhu Yuan Shuhai Guo Yang Wu Bo Wu Fenglian Cheng Jinghao Gao Xiaowu Huang Coupling electrokinetic remediation with ryegrass for the synergistic remediation of Cd and C14 alkane co-contaminated soil Current Research in Biotechnology Electric field Phytoremediation Cd and C14 alkane co-contaminated soil Soil bacterial community |
| title | Coupling electrokinetic remediation with ryegrass for the synergistic remediation of Cd and C14 alkane co-contaminated soil |
| title_full | Coupling electrokinetic remediation with ryegrass for the synergistic remediation of Cd and C14 alkane co-contaminated soil |
| title_fullStr | Coupling electrokinetic remediation with ryegrass for the synergistic remediation of Cd and C14 alkane co-contaminated soil |
| title_full_unstemmed | Coupling electrokinetic remediation with ryegrass for the synergistic remediation of Cd and C14 alkane co-contaminated soil |
| title_short | Coupling electrokinetic remediation with ryegrass for the synergistic remediation of Cd and C14 alkane co-contaminated soil |
| title_sort | coupling electrokinetic remediation with ryegrass for the synergistic remediation of cd and c14 alkane co contaminated soil |
| topic | Electric field Phytoremediation Cd and C14 alkane co-contaminated soil Soil bacterial community |
| url | http://www.sciencedirect.com/science/article/pii/S2590262824000285 |
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