Crude glycerin in anaerobic co-digestion of dairy cattle manure increases methane production
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000300175 |
Resumo: | ABSTRACT Anaerobic digestion of crude glycerin (CG) along with animal waste has been an excellent option for increasing the production of biogas and methane to achieve efficiency in the treatment of both residues. This study aimed to evaluate improvements in specific productions of biogas and methane, reductions in solid and fibrous components in substrates prepared with dairy cattle manure and CG (containing 14 % glycerol). With these residues, experimental substrates were prepared and placed in 25 batch digesters. Initial content of the TS in the influent was 4 % and CG was added in increasing doses (0, 5, 10, 15 and 20 % relative to total solids (TS) of the influent). Results were submitted to ANOVA and orthogonal contrasts to assess the effects of linear and quadratic order and thereby estimate the optimal CG doses through the adjusted models. The highest values for specific production of methane (0.19 and 0.26 L g−1 of TS and volatile solids (VS) added, respectively) were reached with the CG inclusions of 6 and 8 %, respectively. Total production of biogas with the inclusion of 6 % CG was 11 % higher when compared to the control treatment. The largest reduction in VS (48 %) was achieved with the addition of 4 % CG. Addition of CG at levels between 3 and 8 % improved the efficiency of the process of anaerobic digestion with dairy cattle manure. |
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Scientia Agrícola (Online) |
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Crude glycerin in anaerobic co-digestion of dairy cattle manure increases methane productionglycerolbiogasanaerobic digestionsolidsABSTRACT Anaerobic digestion of crude glycerin (CG) along with animal waste has been an excellent option for increasing the production of biogas and methane to achieve efficiency in the treatment of both residues. This study aimed to evaluate improvements in specific productions of biogas and methane, reductions in solid and fibrous components in substrates prepared with dairy cattle manure and CG (containing 14 % glycerol). With these residues, experimental substrates were prepared and placed in 25 batch digesters. Initial content of the TS in the influent was 4 % and CG was added in increasing doses (0, 5, 10, 15 and 20 % relative to total solids (TS) of the influent). Results were submitted to ANOVA and orthogonal contrasts to assess the effects of linear and quadratic order and thereby estimate the optimal CG doses through the adjusted models. The highest values for specific production of methane (0.19 and 0.26 L g−1 of TS and volatile solids (VS) added, respectively) were reached with the CG inclusions of 6 and 8 %, respectively. Total production of biogas with the inclusion of 6 % CG was 11 % higher when compared to the control treatment. The largest reduction in VS (48 %) was achieved with the addition of 4 % CG. Addition of CG at levels between 3 and 8 % improved the efficiency of the process of anaerobic digestion with dairy cattle manure.Escola Superior de Agricultura "Luiz de Queiroz"2017-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000300175Scientia Agricola v.74 n.3 2017reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/1678-992x-2016-0057info:eu-repo/semantics/openAccessSimm,SilvanaOrrico,Ana Carolina AmorimOrrico Junior,Marco Antonio PrevidelliSunada,Natália da SilvaSchwingel,Alice WatteMendonça Costa,Mônica Sarolli Silva deeng2017-04-07T00:00:00Zoai:scielo:S0103-90162017000300175Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2017-04-07T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Crude glycerin in anaerobic co-digestion of dairy cattle manure increases methane production |
title |
Crude glycerin in anaerobic co-digestion of dairy cattle manure increases methane production |
spellingShingle |
Crude glycerin in anaerobic co-digestion of dairy cattle manure increases methane production Simm,Silvana glycerol biogas anaerobic digestion solids |
title_short |
Crude glycerin in anaerobic co-digestion of dairy cattle manure increases methane production |
title_full |
Crude glycerin in anaerobic co-digestion of dairy cattle manure increases methane production |
title_fullStr |
Crude glycerin in anaerobic co-digestion of dairy cattle manure increases methane production |
title_full_unstemmed |
Crude glycerin in anaerobic co-digestion of dairy cattle manure increases methane production |
title_sort |
Crude glycerin in anaerobic co-digestion of dairy cattle manure increases methane production |
author |
Simm,Silvana |
author_facet |
Simm,Silvana Orrico,Ana Carolina Amorim Orrico Junior,Marco Antonio Previdelli Sunada,Natália da Silva Schwingel,Alice Watte Mendonça Costa,Mônica Sarolli Silva de |
author_role |
author |
author2 |
Orrico,Ana Carolina Amorim Orrico Junior,Marco Antonio Previdelli Sunada,Natália da Silva Schwingel,Alice Watte Mendonça Costa,Mônica Sarolli Silva de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Simm,Silvana Orrico,Ana Carolina Amorim Orrico Junior,Marco Antonio Previdelli Sunada,Natália da Silva Schwingel,Alice Watte Mendonça Costa,Mônica Sarolli Silva de |
dc.subject.por.fl_str_mv |
glycerol biogas anaerobic digestion solids |
topic |
glycerol biogas anaerobic digestion solids |
description |
ABSTRACT Anaerobic digestion of crude glycerin (CG) along with animal waste has been an excellent option for increasing the production of biogas and methane to achieve efficiency in the treatment of both residues. This study aimed to evaluate improvements in specific productions of biogas and methane, reductions in solid and fibrous components in substrates prepared with dairy cattle manure and CG (containing 14 % glycerol). With these residues, experimental substrates were prepared and placed in 25 batch digesters. Initial content of the TS in the influent was 4 % and CG was added in increasing doses (0, 5, 10, 15 and 20 % relative to total solids (TS) of the influent). Results were submitted to ANOVA and orthogonal contrasts to assess the effects of linear and quadratic order and thereby estimate the optimal CG doses through the adjusted models. The highest values for specific production of methane (0.19 and 0.26 L g−1 of TS and volatile solids (VS) added, respectively) were reached with the CG inclusions of 6 and 8 %, respectively. Total production of biogas with the inclusion of 6 % CG was 11 % higher when compared to the control treatment. The largest reduction in VS (48 %) was achieved with the addition of 4 % CG. Addition of CG at levels between 3 and 8 % improved the efficiency of the process of anaerobic digestion with dairy cattle manure. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000300175 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000300175 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-992x-2016-0057 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
dc.source.none.fl_str_mv |
Scientia Agricola v.74 n.3 2017 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1748936464296574976 |