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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
02/12/2022 |
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Data da última atualização: |
02/12/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BORGES, R.; GIROTO, A.; GUIMARÃES, G. G. F.; REIS, H. P. G.; FARINAS, C. S.; RIBEIRO, C. |
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Afiliação: |
CRISTIANE SANCHEZ FARINAS, CNPDIA; CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
Asbestos cement waste treatment through mechanochemical process with KH2PO4 for its utilization in soil pH correction and nutrient delivery. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 29, 2022. |
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Páginas: |
28804?28815 |
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ISSN: |
0944-1344 |
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DOI: |
https://doi.org/10.1007/s11356-021-17679-w |
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Idioma: |
Inglês |
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Conteúdo: |
The manufacture of asbestos materials has been banished worldwide due to their toxicity, but discarding the existing wastes remains a challenge. We investigated an alternative mechanochemical method to treat asbestos-cement materials by loading them with potassium and phosphorus from KH2PO4 during the milling process to obtain a product used as liming and soil conditioner. The results showed total asbestos fbrous elimination after 7 to 8 h of milling. The materials showed a slowrelease fertilizer profle. The liming property is maintained when the asbestos-cement weight proportion used is equal to or higher than KH2PO4. A comparative soil experiment with limestone also indicates that lower doses of the K- and P-enriched detoxifed asbestos cement were required to reach similar liming efects. Maize cultivation (greenhouse) was used to evaluate its performance showing higher biomass production for the sample loaded with potassium and phosphorous. |
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Palavras-Chave: |
Asbestos cement detoxifcation; Mechanochemical treatment; Slow-release fertilizer. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01798naa a2200253 a 4500
001 2149155
005 2022-12-02
008 2022 bl uuuu u00u1 u #d
022 $a0944-1344
024 7 $ahttps://doi.org/10.1007/s11356-021-17679-w$2DOI
100 1 $aBORGES, R.
245 $aAsbestos cement waste treatment through mechanochemical process with KH2PO4 for its utilization in soil pH correction and nutrient delivery.$h[electronic resource]
260 $c2022
300 $a28804?28815
520 $aThe manufacture of asbestos materials has been banished worldwide due to their toxicity, but discarding the existing wastes remains a challenge. We investigated an alternative mechanochemical method to treat asbestos-cement materials by loading them with potassium and phosphorus from KH2PO4 during the milling process to obtain a product used as liming and soil conditioner. The results showed total asbestos fbrous elimination after 7 to 8 h of milling. The materials showed a slowrelease fertilizer profle. The liming property is maintained when the asbestos-cement weight proportion used is equal to or higher than KH2PO4. A comparative soil experiment with limestone also indicates that lower doses of the K- and P-enriched detoxifed asbestos cement were required to reach similar liming efects. Maize cultivation (greenhouse) was used to evaluate its performance showing higher biomass production for the sample loaded with potassium and phosphorous.
653 $aAsbestos cement detoxifcation
653 $aMechanochemical treatment
653 $aSlow-release fertilizer
700 1 $aGIROTO, A.
700 1 $aGUIMARÃES, G. G. F.
700 1 $aREIS, H. P. G.
700 1 $aFARINAS, C. S.
700 1 $aRIBEIRO, C.
773 $tEnvironmental Science and Pollution Research$gv. 29, 2022.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
