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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
15/04/2021 |
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Data da última atualização: |
16/07/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CHINI, A.; HOLLAS, C. E.; BOLSAN, A. C.; ANTES, F. G.; TREICHEL, H.; KUNZ, A. |
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Afiliação: |
ANGELICA CHINI, Unioeste/Cascavel; CAMILA ESTER HOLLAS, Unioeste/Cascavel; ALICE CHIAPETTI BOLSAN, Unoesc/Joaçaba; FABIANE GOLDSCHMIDT ANTES, CNPSA; HELEN TREICHEL, UFFS/Erechim; AIRTON KUNZ, CNPSA. |
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Título: |
Treatment of digestate from swine sludge continuous stirred tank reactor to reduce total carbon and total solids content. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Environment, Development and Sustainability, v. 23, p. 12326-12341, 2021. |
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DOI: |
https://doi.org/10.1007/s10668-020-01170-6 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Anaerobic digestion is a biological process that can partially convert organic matter into gases with potential to energy generation. However, in case of continuous stirred tank reactor (CSTR) for the treatment of sludge from swine manure, a digestate with a high concentration of solids, undigested carbon, nitrogen and phosphorus is usually obtained, which can limit the direct application to the soil or other direct uses or disposal. Therefore, an additional treatment of digestate is still needed to meet environmental requirements for the viability of an anaerobic digestion plant to enable the disposal of the liquid effluent. In this study, solid-liquid separation (SLS) strategies were studied for treatment of digestate from swine sludge CSTR biodigester. The following processes were tested: settling, centrifugation and chemical flocculation.The performance of each process was evaluated by monitoring the concentrations of the following parameters in the raw digestate and after treatment: total carbon (TC), phosphorus, total kjeldahl nitrogen, ammonia nitrogen, total solids (TS), volatile solids and fixed solids. The factorial design was used for the optimization of centrifugation and chemical flocculation tests. Total carbon, solids and phosphorus were significantly reduced from digestate using the different SLS processes. However, higher removal efficiencies were obtained by centrifugation, being more expressive to phosphorus, TC and TS (reduction of 95, 90 and 83%, respectively). Furthermore, the sludge production by centrifugation was 3.8 and 7.3 times lower than by settling and chemical flocculation, respectively. Thus, centrifugation could be considered the most appropriate SLS process to enable digestate treatment and the liquid efluent is suitable to be treated by deammonification process for nitrogen removal. MenosAbstract: Anaerobic digestion is a biological process that can partially convert organic matter into gases with potential to energy generation. However, in case of continuous stirred tank reactor (CSTR) for the treatment of sludge from swine manure, a digestate with a high concentration of solids, undigested carbon, nitrogen and phosphorus is usually obtained, which can limit the direct application to the soil or other direct uses or disposal. Therefore, an additional treatment of digestate is still needed to meet environmental requirements for the viability of an anaerobic digestion plant to enable the disposal of the liquid effluent. In this study, solid-liquid separation (SLS) strategies were studied for treatment of digestate from swine sludge CSTR biodigester. The following processes were tested: settling, centrifugation and chemical flocculation.The performance of each process was evaluated by monitoring the concentrations of the following parameters in the raw digestate and after treatment: total carbon (TC), phosphorus, total kjeldahl nitrogen, ammonia nitrogen, total solids (TS), volatile solids and fixed solids. The factorial design was used for the optimization of centrifugation and chemical flocculation tests. Total carbon, solids and phosphorus were significantly reduced from digestate using the different SLS processes. However, higher removal efficiencies were obtained by centrifugation, being more expressive to phosphorus, TC and TS (reduction of 95, 90 and 83... Mostrar Tudo |
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Palavras-Chave: |
Chemical flocculation; Estrume de suínos; Floculação química; Settling; Swine manure. |
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Thesagro: |
Águas Residuais; Assentamento; Centrifugação; Dejeto; Floculação; Suíno. |
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Thesaurus Nal: |
Centrifugation; Wastewater treatment. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02904naa a2200349 a 4500
001 2131304
005 2021-07-16
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10668-020-01170-6$2DOI
100 1 $aCHINI, A.
245 $aTreatment of digestate from swine sludge continuous stirred tank reactor to reduce total carbon and total solids content.$h[electronic resource]
260 $c2021
520 $aAbstract: Anaerobic digestion is a biological process that can partially convert organic matter into gases with potential to energy generation. However, in case of continuous stirred tank reactor (CSTR) for the treatment of sludge from swine manure, a digestate with a high concentration of solids, undigested carbon, nitrogen and phosphorus is usually obtained, which can limit the direct application to the soil or other direct uses or disposal. Therefore, an additional treatment of digestate is still needed to meet environmental requirements for the viability of an anaerobic digestion plant to enable the disposal of the liquid effluent. In this study, solid-liquid separation (SLS) strategies were studied for treatment of digestate from swine sludge CSTR biodigester. The following processes were tested: settling, centrifugation and chemical flocculation.The performance of each process was evaluated by monitoring the concentrations of the following parameters in the raw digestate and after treatment: total carbon (TC), phosphorus, total kjeldahl nitrogen, ammonia nitrogen, total solids (TS), volatile solids and fixed solids. The factorial design was used for the optimization of centrifugation and chemical flocculation tests. Total carbon, solids and phosphorus were significantly reduced from digestate using the different SLS processes. However, higher removal efficiencies were obtained by centrifugation, being more expressive to phosphorus, TC and TS (reduction of 95, 90 and 83%, respectively). Furthermore, the sludge production by centrifugation was 3.8 and 7.3 times lower than by settling and chemical flocculation, respectively. Thus, centrifugation could be considered the most appropriate SLS process to enable digestate treatment and the liquid efluent is suitable to be treated by deammonification process for nitrogen removal.
650 $aCentrifugation
650 $aWastewater treatment
650 $aÁguas Residuais
650 $aAssentamento
650 $aCentrifugação
650 $aDejeto
650 $aFloculação
650 $aSuíno
653 $aChemical flocculation
653 $aEstrume de suínos
653 $aFloculação química
653 $aSettling
653 $aSwine manure
700 1 $aHOLLAS, C. E.
700 1 $aBOLSAN, A. C.
700 1 $aANTES, F. G.
700 1 $aTREICHEL, H.
700 1 $aKUNZ, A.
773 $tEnvironment, Development and Sustainability$gv. 23, p. 12326-12341, 2021.
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Registro original: |
Embrapa Suínos e Aves (CNPSA) |
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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 Suínos e Aves. |
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Data corrente: |
18/12/2018 |
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Data da última atualização: |
18/12/2018 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
MARTINS, R. R.; FRANCO, J. B. da R; OLIVEIRA, P. A. V. de; ANGONESE, C. |
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Afiliação: |
RICARDO RAMOS MARTINS, Emater/RS; JOSÉ BOAVENTURA DA ROSA FRANCO; PAULO ARMANDO VICTORIA DE OLIVEIRA, CNPSA; CARLOS ANGONESE, Emater/RS. |
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Título: |
Secagem de grãos para propriedade familiar. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: LORINI, I.; MIIKE, L. H.; SCUSSEL, V. M.; FARONI, L. R. DA. (Ed.). Armazenagem de grãos. Jundiaí: IBG, 2018. p. 185-229. |
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Idioma: |
Português |
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Palavras-Chave: |
Armazenagem de grãos; Conservação de grãos. |
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Thesagro: |
Grão; Secagem; Silo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00648naa a2200205 a 4500
001 2101923
005 2018-12-18
008 2018 bl uuuu u00u1 u #d
100 1 $aMARTINS, R. R.
245 $aSecagem de grãos para propriedade familiar.$h[electronic resource]
260 $c2018
650 $aGrão
650 $aSecagem
650 $aSilo
653 $aArmazenagem de grãos
653 $aConservação de grãos
700 1 $aFRANCO, J. B. da R
700 1 $aOLIVEIRA, P. A. V. de
700 1 $aANGONESE, C.
773 $tIn: LORINI, I.; MIIKE, L. H.; SCUSSEL, V. M.; FARONI, L. R. DA. (Ed.). Armazenagem de grãos. Jundiaí: IBG, 2018. p. 185-229.
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