Trace Metal Accumulation and Phytoremediation Potential of Four Crop Plants Cultivated on Pure Sewage Sludge
Phytoremediation is a viable strategy to remove trace metal contaminants from sewage sludge but still is poorly investigated. The aim of this study was to quantify the trace metal removal of <i>B. napus</i>, <i>B. juncea</i>, <i>H. annuus</i>, <i>Z. mays<...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/11/12/2456 |
| _version_ | 1797507033456443392 |
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| author | Mirko Salinitro Sofia Montanari Andrea Simoni Claudio Ciavatta Annalisa Tassoni |
| author_facet | Mirko Salinitro Sofia Montanari Andrea Simoni Claudio Ciavatta Annalisa Tassoni |
| author_sort | Mirko Salinitro |
| collection | DOAJ |
| description | Phytoremediation is a viable strategy to remove trace metal contaminants from sewage sludge but still is poorly investigated. The aim of this study was to quantify the trace metal removal of <i>B. napus</i>, <i>B. juncea</i>, <i>H. annuus</i>, <i>Z. mays</i> grown on pure sewage sludge. Each species was grown on six different sewage sludge for 8 weeks and sludge were analysed for trace metal content and physico-chemical characteristics. Our results confirmed that all the tested sludge supported plant growth. The tested sludge showed a plant vigorousness lower (46% of sludge) or similar/increased (54% of sludge) compared to control treatment. <i>B.</i> <i>juncea</i> and <i>B. napus</i> were the most efficient species in the bioaccumulation, of trace metals. The average percentage of metals removed by the selected species was 0.2% for As, 0.85% for Cd, 0.09% for Cr, 0.36% for Cu, 0.36% for Ni, 4.2% for Se, 1.2% for Zn. In conclusion, our results showed that phytoremediation can be applied to sewage sludge, despite the chosen species have low efficiency in trace element removal. Further studies using hyperaccumulator species are needed which may lead to a higher efficiency of the process opening up new possibilities for the management strategies of this waste. |
| first_indexed | 2024-03-10T04:40:56Z |
| format | Article |
| id | doaj.art-caab141eab5a49a193ce64b07f79ab34 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T04:40:56Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-caab141eab5a49a193ce64b07f79ab342023-11-23T03:22:09ZengMDPI AGAgronomy2073-43952021-12-011112245610.3390/agronomy11122456Trace Metal Accumulation and Phytoremediation Potential of Four Crop Plants Cultivated on Pure Sewage SludgeMirko Salinitro0Sofia Montanari1Andrea Simoni2Claudio Ciavatta3Annalisa Tassoni4Department of Biological Geological and Environmental Sciences, Alma Mater Studiorum University of Bologna, Via Irnerio 42, 40126 Bologna, ItalyDepartment of Biological Geological and Environmental Sciences, Alma Mater Studiorum University of Bologna, Via Irnerio 42, 40126 Bologna, ItalyDepartment of Agricultural and Food Sciences, Alma Mater Studiorum University of Bologna, Viale Giuseppe Fanin 44, 40127 Bologna, ItalyDepartment of Agricultural and Food Sciences, Alma Mater Studiorum University of Bologna, Viale Giuseppe Fanin 44, 40127 Bologna, ItalyDepartment of Biological Geological and Environmental Sciences, Alma Mater Studiorum University of Bologna, Via Irnerio 42, 40126 Bologna, ItalyPhytoremediation is a viable strategy to remove trace metal contaminants from sewage sludge but still is poorly investigated. The aim of this study was to quantify the trace metal removal of <i>B. napus</i>, <i>B. juncea</i>, <i>H. annuus</i>, <i>Z. mays</i> grown on pure sewage sludge. Each species was grown on six different sewage sludge for 8 weeks and sludge were analysed for trace metal content and physico-chemical characteristics. Our results confirmed that all the tested sludge supported plant growth. The tested sludge showed a plant vigorousness lower (46% of sludge) or similar/increased (54% of sludge) compared to control treatment. <i>B.</i> <i>juncea</i> and <i>B. napus</i> were the most efficient species in the bioaccumulation, of trace metals. The average percentage of metals removed by the selected species was 0.2% for As, 0.85% for Cd, 0.09% for Cr, 0.36% for Cu, 0.36% for Ni, 4.2% for Se, 1.2% for Zn. In conclusion, our results showed that phytoremediation can be applied to sewage sludge, despite the chosen species have low efficiency in trace element removal. Further studies using hyperaccumulator species are needed which may lead to a higher efficiency of the process opening up new possibilities for the management strategies of this waste.https://www.mdpi.com/2073-4395/11/12/2456metalsmetalloidsphytotechnologycrop plantswastewater treatment |
| spellingShingle | Mirko Salinitro Sofia Montanari Andrea Simoni Claudio Ciavatta Annalisa Tassoni Trace Metal Accumulation and Phytoremediation Potential of Four Crop Plants Cultivated on Pure Sewage Sludge Agronomy metals metalloids phytotechnology crop plants wastewater treatment |
| title | Trace Metal Accumulation and Phytoremediation Potential of Four Crop Plants Cultivated on Pure Sewage Sludge |
| title_full | Trace Metal Accumulation and Phytoremediation Potential of Four Crop Plants Cultivated on Pure Sewage Sludge |
| title_fullStr | Trace Metal Accumulation and Phytoremediation Potential of Four Crop Plants Cultivated on Pure Sewage Sludge |
| title_full_unstemmed | Trace Metal Accumulation and Phytoremediation Potential of Four Crop Plants Cultivated on Pure Sewage Sludge |
| title_short | Trace Metal Accumulation and Phytoremediation Potential of Four Crop Plants Cultivated on Pure Sewage Sludge |
| title_sort | trace metal accumulation and phytoremediation potential of four crop plants cultivated on pure sewage sludge |
| topic | metals metalloids phytotechnology crop plants wastewater treatment |
| url | https://www.mdpi.com/2073-4395/11/12/2456 |
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