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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
26/05/2025 |
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Data da última atualização: |
26/05/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BORGES, R.; SOARES, M. B.; POLLO, M. P.; ALLEONI, L. R. F.; GIROTO, A. S.; GONÇALVES, M.; MÜLLER, M.; JABLONOWSKI, N. D.; OLIVEIRA, C. R. de. |
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Afiliação: |
FEDERAL TECHNOLOGICAL UNIVERSITY OF PARANÁ; UNIVERSITY OF SÃO PAULO; UNIVERSITY OF SÃO PAULO; UNIVERSITY OF SÃO PAULO; FEDERAL UNIVERSITY OF SÃO PAULO; FEDERAL UNIVERSITY OF SÃO PAULO; INSTITUTE OF ENERGY MATERIALS AND DEVICES, IMD-1; INSTITUTE OF BIO- AND GEOSCIENCES, IBG-2; CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
Zinc and Cadmium Remediation in Contaminated Soil by CaCO3‑Biochar Material from Sugar Beet Industry. |
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Ano de publicação: |
2025 |
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Fonte/Imprenta: |
Water, Air and Soil Pollution, v. 236, n. 5, 325, 2025. |
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Páginas: |
17 p. |
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DOI: |
https://doi.org/10.1007/s11270-025-07965-5 |
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Idioma: |
Inglês |
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Conteúdo: |
Ore mining and other industrial processes can release toxic elements such as zinc and cadmium into the soil, posing a potential environmental risk. Biochar produced by biomass pyrolysis is proposed to treat contaminated soils by sorption of the contaminants while boosting soil fertility, water retention, and microbial activity. Here, we propose the utilization of Carbokalk, an inexpensive byproduct (spent lime, SL) of the sugar-beet industry, as an ideal source for soil-treatment biochar. We examined the pyrolysis of SL containing up to 20% organic matter at various temperatures and in an oxidizing (air) and inert (N2) atmosphere. Our results indicate that the pyrolysis temperatures and gas atmospheres greatly infuence the physicochemical features of SL-biochar, identifying the most suitable temperature of 600 ºC for both atmospheres. SL-biochar incubation in contaminated soil has shown the potential to mitigate metal contamination in soils. However, under an oxidizing atmosphere, SL-biochar provides higher reductions in exchangeable Zn and Cd fractions. It accounts for 3% and 20%, respectively, along with increases in fractions associated with carbonate and organic matter. These fndings demonstrate the efectiveness of SLbiochar in immobilizing these contaminants. |
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Palavras-Chave: |
CaCO3-biochar; Spent lime. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02082naa a2200265 a 4500
001 2176003
005 2025-05-26
008 2025 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11270-025-07965-5$2DOI
100 1 $aBORGES, R.
245 $aZinc and Cadmium Remediation in Contaminated Soil by CaCO3‑Biochar Material from Sugar Beet Industry.$h[electronic resource]
260 $c2025
300 $a17 p.
520 $aOre mining and other industrial processes can release toxic elements such as zinc and cadmium into the soil, posing a potential environmental risk. Biochar produced by biomass pyrolysis is proposed to treat contaminated soils by sorption of the contaminants while boosting soil fertility, water retention, and microbial activity. Here, we propose the utilization of Carbokalk, an inexpensive byproduct (spent lime, SL) of the sugar-beet industry, as an ideal source for soil-treatment biochar. We examined the pyrolysis of SL containing up to 20% organic matter at various temperatures and in an oxidizing (air) and inert (N2) atmosphere. Our results indicate that the pyrolysis temperatures and gas atmospheres greatly infuence the physicochemical features of SL-biochar, identifying the most suitable temperature of 600 ºC for both atmospheres. SL-biochar incubation in contaminated soil has shown the potential to mitigate metal contamination in soils. However, under an oxidizing atmosphere, SL-biochar provides higher reductions in exchangeable Zn and Cd fractions. It accounts for 3% and 20%, respectively, along with increases in fractions associated with carbonate and organic matter. These fndings demonstrate the efectiveness of SLbiochar in immobilizing these contaminants.
653 $aCaCO3-biochar
653 $aSpent lime
700 1 $aSOARES, M. B.
700 1 $aPOLLO, M. P.
700 1 $aALLEONI, L. R. F.
700 1 $aGIROTO, A. S.
700 1 $aGONÇALVES, M.
700 1 $aMÜLLER, M.
700 1 $aJABLONOWSKI, N. D.
700 1 $aOLIVEIRA, C. R. de
773 $tWater, Air and Soil Pollution$gv. 236, n. 5, 325, 2025.
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