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| Registros recuperados : 2 | |
| Registros recuperados : 2 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Suínos e Aves. |
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Data corrente: |
10/11/2020 |
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Data da última atualização: |
10/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SARDÁ, L. G.; HIGARASHI, M. M.; NICOLOSO, R. da S.; FALKOSKI, C.; RIBEIRO, S. M. S.; SILVEIRA, C. A. P.; SOARES, H. M. |
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Afiliação: |
LUANA GOULART SARDÁ, UFSC; MARTHA MAYUMI HIGARASHI, CNPSA; RODRIGO DA SILVEIRA NICOLOSO, CNPSA; CAMILA FALKOSKI, UNC/Concórdia; STEPHANIE M. S. RIBEIRO, UNC/Concórdia; CARLOS AUGUSTO POSSER SILVEIRA, CPACT; HUGO MOREIRA SOARES, UFSC. |
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Título: |
Effects of dicyandiamide and Mg/P on the global warming potential of swine slurry and sawdust cocomposting. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 27, n. 24, p. 30405-30418, 2020. |
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DOI: |
https://doi.org/10.1007/s11356-020-09244-8 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Composting is an emerging strategy for swine slurry treatment; nonetheless, significant greenhouse gases (GHG) emissions may occur during this process.We carried out two separate assays with increasing doses of dicyandiamide (DCD; up to 1.1%w/w) as a nitrification inhibitor and solutions ofMgCl2 and H3PO4 (Mg/P; up to 0.09/0.06 mol kg−1) to promote struvite crystallization in order to assess their efficiencies as additives to decrease GHG emission during swine slurry cocomposting with sawdust (1:1v/v). We monitored the nitrous oxide (N2O-N), methane (CH4-C), and carbon dioxide (CO2-C) emissions and the ammonia (NH4 +-N) and nitrate/nitrite (NOx-N) concentrations in compost reactors (35 L) during the first 4?5 weeks of composting. DCD had no effect on CH4-C and CO2-C emissions but decreased N2O-N losses by up to 56% compared with control. However, DCD inactivation was favored by thermophilic conditions and N2O-N emissions increased to same levels of control after 13 days. Mg/P was effective to decrease N2O-N losses only at the highest dose, which also sustained higher [NH4 +-N] in the compost by the end of the assessment. Nonetheless, the use of 0.09/0.06 mol kg−1 of Mg/P also decreased CH4-C and CO2-C emissions compared with lower doses of Mg/P and unamended treatments. Overall, DCD and Mg/P amendments decreased the global warming potential (GWP) of swine slurry composting by up to 46 and 28%, respectively. The Mg/P application may be also interesting to increase the compost quality by increasing its NH4 +-N availability. MenosAbstract: Composting is an emerging strategy for swine slurry treatment; nonetheless, significant greenhouse gases (GHG) emissions may occur during this process.We carried out two separate assays with increasing doses of dicyandiamide (DCD; up to 1.1%w/w) as a nitrification inhibitor and solutions ofMgCl2 and H3PO4 (Mg/P; up to 0.09/0.06 mol kg−1) to promote struvite crystallization in order to assess their efficiencies as additives to decrease GHG emission during swine slurry cocomposting with sawdust (1:1v/v). We monitored the nitrous oxide (N2O-N), methane (CH4-C), and carbon dioxide (CO2-C) emissions and the ammonia (NH4 +-N) and nitrate/nitrite (NOx-N) concentrations in compost reactors (35 L) during the first 4?5 weeks of composting. DCD had no effect on CH4-C and CO2-C emissions but decreased N2O-N losses by up to 56% compared with control. However, DCD inactivation was favored by thermophilic conditions and N2O-N emissions increased to same levels of control after 13 days. Mg/P was effective to decrease N2O-N losses only at the highest dose, which also sustained higher [NH4 +-N] in the compost by the end of the assessment. Nonetheless, the use of 0.09/0.06 mol kg−1 of Mg/P also decreased CH4-C and CO2-C emissions compared with lower doses of Mg/P and unamended treatments. Overall, DCD and Mg/P amendments decreased the global warming potential (GWP) of swine slurry composting by up to 46 and 28%, respectively. The Mg/P application may be also interesting t... Mostrar Tudo |
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Palavras-Chave: |
Cocompostagem; Cocomposting; Dicianodiamida; Gás de efeito estufa; Precipitação de estruvita; Struvite precipitation; Swine slurry; Swine waste. |
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Thesagro: |
Aditivo; Dejeto; Suíno. |
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Thesaurus NAL: |
Additives; Dicyandiamide; Greenhouse gas emissions; Greenhouse gases; Wastewater treatment. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02769naa a2200397 a 4500
001 2126440
005 2020-11-10
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11356-020-09244-8$2DOI
100 1 $aSARDÁ, L. G.
245 $aEffects of dicyandiamide and Mg/P on the global warming potential of swine slurry and sawdust cocomposting.$h[electronic resource]
260 $c2020
520 $aAbstract: Composting is an emerging strategy for swine slurry treatment; nonetheless, significant greenhouse gases (GHG) emissions may occur during this process.We carried out two separate assays with increasing doses of dicyandiamide (DCD; up to 1.1%w/w) as a nitrification inhibitor and solutions ofMgCl2 and H3PO4 (Mg/P; up to 0.09/0.06 mol kg−1) to promote struvite crystallization in order to assess their efficiencies as additives to decrease GHG emission during swine slurry cocomposting with sawdust (1:1v/v). We monitored the nitrous oxide (N2O-N), methane (CH4-C), and carbon dioxide (CO2-C) emissions and the ammonia (NH4 +-N) and nitrate/nitrite (NOx-N) concentrations in compost reactors (35 L) during the first 4?5 weeks of composting. DCD had no effect on CH4-C and CO2-C emissions but decreased N2O-N losses by up to 56% compared with control. However, DCD inactivation was favored by thermophilic conditions and N2O-N emissions increased to same levels of control after 13 days. Mg/P was effective to decrease N2O-N losses only at the highest dose, which also sustained higher [NH4 +-N] in the compost by the end of the assessment. Nonetheless, the use of 0.09/0.06 mol kg−1 of Mg/P also decreased CH4-C and CO2-C emissions compared with lower doses of Mg/P and unamended treatments. Overall, DCD and Mg/P amendments decreased the global warming potential (GWP) of swine slurry composting by up to 46 and 28%, respectively. The Mg/P application may be also interesting to increase the compost quality by increasing its NH4 +-N availability.
650 $aAdditives
650 $aDicyandiamide
650 $aGreenhouse gas emissions
650 $aGreenhouse gases
650 $aWastewater treatment
650 $aAditivo
650 $aDejeto
650 $aSuíno
653 $aCocompostagem
653 $aCocomposting
653 $aDicianodiamida
653 $aGás de efeito estufa
653 $aPrecipitação de estruvita
653 $aStruvite precipitation
653 $aSwine slurry
653 $aSwine waste
700 1 $aHIGARASHI, M. M.
700 1 $aNICOLOSO, R. da S.
700 1 $aFALKOSKI, C.
700 1 $aRIBEIRO, S. M. S.
700 1 $aSILVEIRA, C. A. P.
700 1 $aSOARES, H. M.
773 $tEnvironmental Science and Pollution Research$gv. 27, n. 24, p. 30405-30418, 2020.
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Embrapa Suínos e Aves (CNPSA) |
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