Comparative Use of Soil Organic and Inorganic Amendments in Heavy Metals Stabilization
Remediation strategies are capable to mitigate negative effects of heavy metals (HMs) on soils. The distribution of cooper (Cu), zinc (Zn), and chromium (Cr) was evaluated in a contaminated soil after adding biosolid compost (BC) and phosphate fertilizer (PF). A greenhouse assay and sequential extra...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Applied and Environmental Soil Science |
| Online Access: | http://dx.doi.org/10.1155/2012/721032 |
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| author | Agustina Branzini Marta Susana Zubillaga |
| author_facet | Agustina Branzini Marta Susana Zubillaga |
| author_sort | Agustina Branzini |
| collection | DOAJ |
| description | Remediation strategies are capable to mitigate negative effects of heavy metals (HMs) on soils. The distribution of cooper (Cu), zinc (Zn), and chromium (Cr) was evaluated in a contaminated soil after adding biosolid compost (BC) and phosphate fertilizer (PF). A greenhouse assay and sequential extraction procedure were performed to determine the fractionation of HM in contaminated and remediated soil. In BC treatment, among 4 to 6% of Cu was associated with soil humic substances. Without amendments and with fertilizer application, Zn solubility increased by 15.4 and 8.4%, respectively, with experiment time. Although Cr was significantly adsorbed to the inorganic fraction, with compost application there was a transfer to organic fraction. A single amendment application is not suitable for immobilizing all metals of concern, because there are diverse union’s behaviors between HM and soil matrix. As the organic matter and phosphate fertilizer were effective in reducing mobility of Cu, the organic matter was more effective in the immobilization of Cr, and inorganic amendment induced the Zn precipitation, results from this pilot study suggest a combined use of these two amendments for soil remediation strategies. However, liming may be further needed to prevent soil acidification on longer time scales. Also, we propose the use of chemical and biological remediation strategies for potential improvement of effectiveness. |
| format | Article |
| id | doaj-art-5ca0fc48b16646dd8c758e22bb12a6ef |
| institution | Kabale University |
| issn | 1687-7667 1687-7675 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied and Environmental Soil Science |
| spelling | doaj-art-5ca0fc48b16646dd8c758e22bb12a6ef2025-08-20T03:34:14ZengWileyApplied and Environmental Soil Science1687-76671687-76752012-01-01201210.1155/2012/721032721032Comparative Use of Soil Organic and Inorganic Amendments in Heavy Metals StabilizationAgustina Branzini0Marta Susana Zubillaga1Department of Fertility and Fertilizers, University of Buenos Aires, Avenue San Martín 4453, 1417 Buenos Aires, ArgentinaDepartment of Fertility and Fertilizers, University of Buenos Aires, Avenue San Martín 4453, 1417 Buenos Aires, ArgentinaRemediation strategies are capable to mitigate negative effects of heavy metals (HMs) on soils. The distribution of cooper (Cu), zinc (Zn), and chromium (Cr) was evaluated in a contaminated soil after adding biosolid compost (BC) and phosphate fertilizer (PF). A greenhouse assay and sequential extraction procedure were performed to determine the fractionation of HM in contaminated and remediated soil. In BC treatment, among 4 to 6% of Cu was associated with soil humic substances. Without amendments and with fertilizer application, Zn solubility increased by 15.4 and 8.4%, respectively, with experiment time. Although Cr was significantly adsorbed to the inorganic fraction, with compost application there was a transfer to organic fraction. A single amendment application is not suitable for immobilizing all metals of concern, because there are diverse union’s behaviors between HM and soil matrix. As the organic matter and phosphate fertilizer were effective in reducing mobility of Cu, the organic matter was more effective in the immobilization of Cr, and inorganic amendment induced the Zn precipitation, results from this pilot study suggest a combined use of these two amendments for soil remediation strategies. However, liming may be further needed to prevent soil acidification on longer time scales. Also, we propose the use of chemical and biological remediation strategies for potential improvement of effectiveness.http://dx.doi.org/10.1155/2012/721032 |
| spellingShingle | Agustina Branzini Marta Susana Zubillaga Comparative Use of Soil Organic and Inorganic Amendments in Heavy Metals Stabilization Applied and Environmental Soil Science |
| title | Comparative Use of Soil Organic and Inorganic Amendments in Heavy Metals Stabilization |
| title_full | Comparative Use of Soil Organic and Inorganic Amendments in Heavy Metals Stabilization |
| title_fullStr | Comparative Use of Soil Organic and Inorganic Amendments in Heavy Metals Stabilization |
| title_full_unstemmed | Comparative Use of Soil Organic and Inorganic Amendments in Heavy Metals Stabilization |
| title_short | Comparative Use of Soil Organic and Inorganic Amendments in Heavy Metals Stabilization |
| title_sort | comparative use of soil organic and inorganic amendments in heavy metals stabilization |
| url | http://dx.doi.org/10.1155/2012/721032 |
| work_keys_str_mv | AT agustinabranzini comparativeuseofsoilorganicandinorganicamendmentsinheavymetalsstabilization AT martasusanazubillaga comparativeuseofsoilorganicandinorganicamendmentsinheavymetalsstabilization |