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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
10/09/2021 |
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Data da última atualização: |
10/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KEDE, M. L. F. M.; PEREZ, D. V.; MOREIRA, J. C.; MARQUES, M. |
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Afiliação: |
MARIA LUIZA F. M. KEDE, UERJ; DANIEL VIDAL PEREZ, CNPS; JOSINO COSTA MOREIRA, FIOCRUZ; MARCIA MARQUES, UERJ. |
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Título: |
Effect of phosphates on the bioavailability and phytotoxicity of Pb and Cd in contaminated soil and phytoextraction by vetiver grass. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Environmental Engineering, v. 143, n. 3, 05016008, Mar. 2017. |
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DOI: |
http://doi.org/10.1061/(ASCE)EE.1943-7870.0001170 |
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Idioma: |
Inglês |
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Conteúdo: |
Column and vessel experiments were conducted to investigate changes in mobility, leaching, and availability of lead (Pb) and cadmium (Cd) in contaminated soil (Santo Amaro Municipality, Bahia State, Brazil) after treatment with different sources of phosphate followed by assessment of phytoextraction by vetiver grass [Vetiveria zizanioides (L.)]. Columns were filled with contaminated soil and KH2PO4 (T1 treatment), reactive natural phosphate fertilizer (NRP) (T2 treatment), KH2PO4 mixed with NRP (T3 treatment), and untreated contaminated soil used as reference soil (T0 treatment). After 60 days, soil samples were collected from each column every 10 cm in depth and vessel experiments were initiated by planting vetiver grass. After 90 days, Pb and Cd were extracted from the soil and from the plant tissues using diethylenetriaminepentaacetic acid (DTPA) and nitro-peroxide extraction, respectively. Metal mobility was assessed using two methods: the toxicity characteristic leaching procedure (TCLP) and the sequential extraction proposed by the Community Bureau of Reference (BCR). The most effective treatment in reducing mobility, availability, and toxicity was T1 (KH2PO4). With regard to reduction of bioavailability to plants, T1 treatment was more effective for Pb than for Cd. According to the BCR method, Cd was more soluble and had higher mobility than Pb. |
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Palavras-Chave: |
Contaminated soil; Metals immobilization; Natural reactive phosphate; Phosphate fertilizer; Phytoextraction; Transfer factor. |
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Thesagro: |
Contaminação; Fertilizante Fosfatado; Solo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02296naa a2200277 a 4500
001 2134217
005 2021-09-10
008 2017 bl uuuu u00u1 u #d
024 7 $ahttp://doi.org/10.1061/(ASCE)EE.1943-7870.0001170$2DOI
100 1 $aKEDE, M. L. F. M.
245 $aEffect of phosphates on the bioavailability and phytotoxicity of Pb and Cd in contaminated soil and phytoextraction by vetiver grass.$h[electronic resource]
260 $c2017
520 $aColumn and vessel experiments were conducted to investigate changes in mobility, leaching, and availability of lead (Pb) and cadmium (Cd) in contaminated soil (Santo Amaro Municipality, Bahia State, Brazil) after treatment with different sources of phosphate followed by assessment of phytoextraction by vetiver grass [Vetiveria zizanioides (L.)]. Columns were filled with contaminated soil and KH2PO4 (T1 treatment), reactive natural phosphate fertilizer (NRP) (T2 treatment), KH2PO4 mixed with NRP (T3 treatment), and untreated contaminated soil used as reference soil (T0 treatment). After 60 days, soil samples were collected from each column every 10 cm in depth and vessel experiments were initiated by planting vetiver grass. After 90 days, Pb and Cd were extracted from the soil and from the plant tissues using diethylenetriaminepentaacetic acid (DTPA) and nitro-peroxide extraction, respectively. Metal mobility was assessed using two methods: the toxicity characteristic leaching procedure (TCLP) and the sequential extraction proposed by the Community Bureau of Reference (BCR). The most effective treatment in reducing mobility, availability, and toxicity was T1 (KH2PO4). With regard to reduction of bioavailability to plants, T1 treatment was more effective for Pb than for Cd. According to the BCR method, Cd was more soluble and had higher mobility than Pb.
650 $aContaminação
650 $aFertilizante Fosfatado
650 $aSolo
653 $aContaminated soil
653 $aMetals immobilization
653 $aNatural reactive phosphate
653 $aPhosphate fertilizer
653 $aPhytoextraction
653 $aTransfer factor
700 1 $aPEREZ, D. V.
700 1 $aMOREIRA, J. C.
700 1 $aMARQUES, M.
773 $tJournal of Environmental Engineering$gv. 143, n. 3, 05016008, Mar. 2017.
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