Sequential fractionation and plant availability of heavy metals as affected by sewage sludge applications to soil
The effect of sewage sludge applications on extractability and uptake by chard and lettuce of soil cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), leaf (Pb), and zinc (Zn) was investigated. Ten different treatments (0, 150, 300, and 500 kg N ha‐1) as mineral fertilizer, and 400, 800, and 1,20...
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| Formato: | article |
| Lenguaje: | Inglés |
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Taylor & Francis
2021
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| Acceso en línea: | http://hdl.handle.net/20.500.11939/6938 https://www.tandfonline.com/doi/abs/10.1080/00103629809369978 |
| _version_ | 1855032517617254400 |
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| author | Canet, Rodolfo Pomares, Fernando Tarazona, Francisco Estela, María |
| author_browse | Canet, Rodolfo Estela, María Pomares, Fernando Tarazona, Francisco |
| author_facet | Canet, Rodolfo Pomares, Fernando Tarazona, Francisco Estela, María |
| author_sort | Canet, Rodolfo |
| collection | ReDivia |
| description | The effect of sewage sludge applications on extractability and uptake by chard and lettuce of soil cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), leaf (Pb), and zinc (Zn) was investigated. Ten different treatments (0, 150, 300, and 500 kg N ha‐1) as mineral fertilizer, and 400, 800, and 1,200 kg N ha‐1 of aerobically and anaerobically‐digested sewage sludges were applied annually to a sandy‐loam soil since 1984. Seven years after the start of the treatments, higher levels of heavy metals were detected in the soil, depending on the type of metal, depth of sampling, type of sludge used, and, especially, rate of application. Following a sequential extraction procedure incorporating 0.1M CaCl2, 0.5M NaOH, and 0.05M Na2EDTA, most of the heavy metals in soil were detected in the Na2EDTA solution and the residual fractions. Large amounts of Cd appeared to be extracted by CaCl2, whereas substantial amounts of Cu and Ni were isolated by NaOH. The effect of treatments on the percentages of the metals found in each fraction depended on the type of metal, sampling depth, sludge used, and application rate. No significant increases were found in the heavy metal contents of chard and lettuce leaves, but some of the treatments resulted in a significant decrease of Cd and Cr levels in lettuce leaves. |
| format | article |
| id | ReDivia6938 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Taylor & Francis |
| publisherStr | Taylor & Francis |
| record_format | dspace |
| spelling | ReDivia69382025-04-25T14:47:58Z Sequential fractionation and plant availability of heavy metals as affected by sewage sludge applications to soil Canet, Rodolfo Pomares, Fernando Tarazona, Francisco Estela, María P01 Nature conservation and land resources P33 Soil chemistry and physics Heavy metals Sewage sludge The effect of sewage sludge applications on extractability and uptake by chard and lettuce of soil cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), leaf (Pb), and zinc (Zn) was investigated. Ten different treatments (0, 150, 300, and 500 kg N ha‐1) as mineral fertilizer, and 400, 800, and 1,200 kg N ha‐1 of aerobically and anaerobically‐digested sewage sludges were applied annually to a sandy‐loam soil since 1984. Seven years after the start of the treatments, higher levels of heavy metals were detected in the soil, depending on the type of metal, depth of sampling, type of sludge used, and, especially, rate of application. Following a sequential extraction procedure incorporating 0.1M CaCl2, 0.5M NaOH, and 0.05M Na2EDTA, most of the heavy metals in soil were detected in the Na2EDTA solution and the residual fractions. Large amounts of Cd appeared to be extracted by CaCl2, whereas substantial amounts of Cu and Ni were isolated by NaOH. The effect of treatments on the percentages of the metals found in each fraction depended on the type of metal, sampling depth, sludge used, and application rate. No significant increases were found in the heavy metal contents of chard and lettuce leaves, but some of the treatments resulted in a significant decrease of Cd and Cr levels in lettuce leaves. 2021-01-11T14:00:49Z 2021-01-11T14:00:49Z 1998 article publishedVersion Canet, R., Pomares, F., Tarazona, F., & Estela, M. (1998). Sequential fractionation and plant availability of heavy metals as affected by sewage sludge applications to soil. Communications in soil science and plant analysis, 29(5-6), 697-716. 0010-3624 (Print ISSN) 1532-2416 (Online ISSN) http://hdl.handle.net/20.500.11939/6938 10.1080/00103629809369978 https://www.tandfonline.com/doi/abs/10.1080/00103629809369978 en Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ closedAccess Taylor & Francis electronico |
| spellingShingle | P01 Nature conservation and land resources P33 Soil chemistry and physics Heavy metals Sewage sludge Canet, Rodolfo Pomares, Fernando Tarazona, Francisco Estela, María Sequential fractionation and plant availability of heavy metals as affected by sewage sludge applications to soil |
| title | Sequential fractionation and plant availability of heavy metals as affected by sewage sludge applications to soil |
| title_full | Sequential fractionation and plant availability of heavy metals as affected by sewage sludge applications to soil |
| title_fullStr | Sequential fractionation and plant availability of heavy metals as affected by sewage sludge applications to soil |
| title_full_unstemmed | Sequential fractionation and plant availability of heavy metals as affected by sewage sludge applications to soil |
| title_short | Sequential fractionation and plant availability of heavy metals as affected by sewage sludge applications to soil |
| title_sort | sequential fractionation and plant availability of heavy metals as affected by sewage sludge applications to soil |
| topic | P01 Nature conservation and land resources P33 Soil chemistry and physics Heavy metals Sewage sludge |
| url | http://hdl.handle.net/20.500.11939/6938 https://www.tandfonline.com/doi/abs/10.1080/00103629809369978 |
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