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Potential of rice straw biochar, sulfur and ryegrass (Lolium perenne L.) in remediating soil contaminated with nickel through irrigation with untreated wastewater
BACKGROUND: Untreated wastewater carries substantial amount of heavy metals and causes potential ecological risks to the environment, food quality, soil health and sustainable agriculture. METHODOLOGY: In order to reduce the incidence of nickel (Ni(2+)) contamination in soils, two separate experimen...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
PeerJ Inc.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7295020/ https://www.ncbi.nlm.nih.gov/pubmed/32566397 http://dx.doi.org/10.7717/peerj.9267 |
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author | Hashem, Inas A. Abbas, Aonalah Y. Abd El-Hamed, Abo El-Nasr H. Salem, Haythum M.S. El-hosseiny, Omr E.M. Abdel-Salam, Mohamed A. Saleem, Muhammad Hamzah Zhou, Wenbing Hu, Ronggui |
author_facet | Hashem, Inas A. Abbas, Aonalah Y. Abd El-Hamed, Abo El-Nasr H. Salem, Haythum M.S. El-hosseiny, Omr E.M. Abdel-Salam, Mohamed A. Saleem, Muhammad Hamzah Zhou, Wenbing Hu, Ronggui |
author_sort | Hashem, Inas A. |
collection | PubMed |
description | BACKGROUND: Untreated wastewater carries substantial amount of heavy metals and causes potential ecological risks to the environment, food quality, soil health and sustainable agriculture. METHODOLOGY: In order to reduce the incidence of nickel (Ni(2+)) contamination in soils, two separate experiments (incubation and greenhouse) were conducted to investigate the potentials of rice straw biochar and elemental sulfur in remediating Ni(2+) polluted soil due to the irrigation with wastewater. Five incubation periods (1, 7, 14, 28 and 56 days), three biochar doses (0, 10 and 20 g kg(−1) of soil) and two doses of sulfur (0 and 5 g kg(−1) of soil) were used in the incubation experiment then the Ni(2+) was extracted from the soil and analyzed, while ryegrass seeds Lolium perenne L. (Poales: Poaceae) and the same doses of biochar and sulfur were used in the greenhouse experiment then the plants Ni(2+)-uptake was determined. RESULTS: The results of the incubation experiment revealed a dose-dependent reduction of DTPA-extractable Ni(2+) in soils treated with biochar. Increasing the biochar dose from 0 g kg(−1) (control) to 10 or 20 g kg(−1) (treatments) decreased the DTPA-extractable Ni(2+) from the soil by 24.6% and 39.4%, respectively. The application of sulfur increased the Ni(2+)-uptake by ryegrass plant which was used as hyper-accumulator of heavy metals in the green house experiment. However, the biochar decreased the Ni(2+)-uptake by the plant therefore it can be used as animal feed. CONCLUSIONS: These results indicate that the biochar and sulfur could be applied separately to remediate the Ni(2+)-contaminated soils either through adsorbing the Ni(2+) by biochar or increasing the Ni(2+) availability by sulfur to be easily uptaken by the hyper-accumulator plant, and hence promote a sustainable agriculture. |
format | Online Article Text |
id | pubmed-7295020 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | PeerJ Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-72950202020-06-20 Potential of rice straw biochar, sulfur and ryegrass (Lolium perenne L.) in remediating soil contaminated with nickel through irrigation with untreated wastewater Hashem, Inas A. Abbas, Aonalah Y. Abd El-Hamed, Abo El-Nasr H. Salem, Haythum M.S. El-hosseiny, Omr E.M. Abdel-Salam, Mohamed A. Saleem, Muhammad Hamzah Zhou, Wenbing Hu, Ronggui PeerJ Agricultural Science BACKGROUND: Untreated wastewater carries substantial amount of heavy metals and causes potential ecological risks to the environment, food quality, soil health and sustainable agriculture. METHODOLOGY: In order to reduce the incidence of nickel (Ni(2+)) contamination in soils, two separate experiments (incubation and greenhouse) were conducted to investigate the potentials of rice straw biochar and elemental sulfur in remediating Ni(2+) polluted soil due to the irrigation with wastewater. Five incubation periods (1, 7, 14, 28 and 56 days), three biochar doses (0, 10 and 20 g kg(−1) of soil) and two doses of sulfur (0 and 5 g kg(−1) of soil) were used in the incubation experiment then the Ni(2+) was extracted from the soil and analyzed, while ryegrass seeds Lolium perenne L. (Poales: Poaceae) and the same doses of biochar and sulfur were used in the greenhouse experiment then the plants Ni(2+)-uptake was determined. RESULTS: The results of the incubation experiment revealed a dose-dependent reduction of DTPA-extractable Ni(2+) in soils treated with biochar. Increasing the biochar dose from 0 g kg(−1) (control) to 10 or 20 g kg(−1) (treatments) decreased the DTPA-extractable Ni(2+) from the soil by 24.6% and 39.4%, respectively. The application of sulfur increased the Ni(2+)-uptake by ryegrass plant which was used as hyper-accumulator of heavy metals in the green house experiment. However, the biochar decreased the Ni(2+)-uptake by the plant therefore it can be used as animal feed. CONCLUSIONS: These results indicate that the biochar and sulfur could be applied separately to remediate the Ni(2+)-contaminated soils either through adsorbing the Ni(2+) by biochar or increasing the Ni(2+) availability by sulfur to be easily uptaken by the hyper-accumulator plant, and hence promote a sustainable agriculture. PeerJ Inc. 2020-06-12 /pmc/articles/PMC7295020/ /pubmed/32566397 http://dx.doi.org/10.7717/peerj.9267 Text en ©2020 Hashem et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. |
spellingShingle | Agricultural Science Hashem, Inas A. Abbas, Aonalah Y. Abd El-Hamed, Abo El-Nasr H. Salem, Haythum M.S. El-hosseiny, Omr E.M. Abdel-Salam, Mohamed A. Saleem, Muhammad Hamzah Zhou, Wenbing Hu, Ronggui Potential of rice straw biochar, sulfur and ryegrass (Lolium perenne L.) in remediating soil contaminated with nickel through irrigation with untreated wastewater |
title | Potential of rice straw biochar, sulfur and ryegrass (Lolium perenne L.) in remediating soil contaminated with nickel through irrigation with untreated wastewater |
title_full | Potential of rice straw biochar, sulfur and ryegrass (Lolium perenne L.) in remediating soil contaminated with nickel through irrigation with untreated wastewater |
title_fullStr | Potential of rice straw biochar, sulfur and ryegrass (Lolium perenne L.) in remediating soil contaminated with nickel through irrigation with untreated wastewater |
title_full_unstemmed | Potential of rice straw biochar, sulfur and ryegrass (Lolium perenne L.) in remediating soil contaminated with nickel through irrigation with untreated wastewater |
title_short | Potential of rice straw biochar, sulfur and ryegrass (Lolium perenne L.) in remediating soil contaminated with nickel through irrigation with untreated wastewater |
title_sort | potential of rice straw biochar, sulfur and ryegrass (lolium perenne l.) in remediating soil contaminated with nickel through irrigation with untreated wastewater |
topic | Agricultural Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7295020/ https://www.ncbi.nlm.nih.gov/pubmed/32566397 http://dx.doi.org/10.7717/peerj.9267 |
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