Acidogenic Fermentation Towards Valorisation of Organic Waste Streams into Volatile Fatty Acids
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/19488 |
Resumo: | Anaerobic acidification of eight organic streams (cheese whey, sugarcane molasses, organic fraction of municipal solid wastes (OFMSW), glycerol, soapy slurry, winery wastewater, olive mill effluent, and landfill leachate) was evaluated in batch experiments to determine their acidogenic potential and examine the composition of the produced volatile fatty acids (VFA). Cheese whey, molasses and OFMSW presented the highest acidogenic potentials (0.3 to 0.4 gVFA per g of chemical oxygen demand fed, CODfed) with the predominance of acetic, n-butyric and propionic acids. A further experimental set was applied to cheese whey, by varying food-to-microorganism ratio (F/M) and initial alkalinity. Maximisation of VFA production (up to 0.63 gVFA g(-1)COD(fed)) was obtained for an initial alkalinity of 5 - 7 g L-1 as CaCO3 and F/M ratios of 2 4 gCOD g(-1)VSS. Moreover, it was demonstrated that low F/M ratios combined with high alkalinity supply can shift the VFA profile by increasing the production of propionic and n-valeric acids. The results are useful towards optimal designs for acidogenic processes based on the composition of the VFA produced, since the control of the acidification products is crucial for valorisation in some applications. |
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Acidogenic Fermentation Towards Valorisation of Organic Waste Streams into Volatile Fatty AcidsANAEROBIC-DIGESTIONBIOHYDROGEN PRODUCTIONOPERATING-CONDITIONSCHEESE WHEYWATERSLUDGEPHPOLYHYDROXYALKANOATESGLUCOSEAnaerobic acidification of eight organic streams (cheese whey, sugarcane molasses, organic fraction of municipal solid wastes (OFMSW), glycerol, soapy slurry, winery wastewater, olive mill effluent, and landfill leachate) was evaluated in batch experiments to determine their acidogenic potential and examine the composition of the produced volatile fatty acids (VFA). Cheese whey, molasses and OFMSW presented the highest acidogenic potentials (0.3 to 0.4 gVFA per g of chemical oxygen demand fed, CODfed) with the predominance of acetic, n-butyric and propionic acids. A further experimental set was applied to cheese whey, by varying food-to-microorganism ratio (F/M) and initial alkalinity. Maximisation of VFA production (up to 0.63 gVFA g(-1)COD(fed)) was obtained for an initial alkalinity of 5 - 7 g L-1 as CaCO3 and F/M ratios of 2 4 gCOD g(-1)VSS. Moreover, it was demonstrated that low F/M ratios combined with high alkalinity supply can shift the VFA profile by increasing the production of propionic and n-valeric acids. The results are useful towards optimal designs for acidogenic processes based on the composition of the VFA produced, since the control of the acidification products is crucial for valorisation in some applications.CROATIAN SOC CHEMICAL ENGINEERING TECHNOLOGY2017-12-07T19:14:25Z2013-01-01T00:00:00Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/19488eng0352-9568Silva, F. C.Serafim, L. S.Nadais, H.Arroja, L.Capela, I.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:37:52Zoai:ria.ua.pt:10773/19488Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:54:16.062740Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Acidogenic Fermentation Towards Valorisation of Organic Waste Streams into Volatile Fatty Acids |
title |
Acidogenic Fermentation Towards Valorisation of Organic Waste Streams into Volatile Fatty Acids |
spellingShingle |
Acidogenic Fermentation Towards Valorisation of Organic Waste Streams into Volatile Fatty Acids Silva, F. C. ANAEROBIC-DIGESTION BIOHYDROGEN PRODUCTION OPERATING-CONDITIONS CHEESE WHEY WATER SLUDGE PH POLYHYDROXYALKANOATES GLUCOSE |
title_short |
Acidogenic Fermentation Towards Valorisation of Organic Waste Streams into Volatile Fatty Acids |
title_full |
Acidogenic Fermentation Towards Valorisation of Organic Waste Streams into Volatile Fatty Acids |
title_fullStr |
Acidogenic Fermentation Towards Valorisation of Organic Waste Streams into Volatile Fatty Acids |
title_full_unstemmed |
Acidogenic Fermentation Towards Valorisation of Organic Waste Streams into Volatile Fatty Acids |
title_sort |
Acidogenic Fermentation Towards Valorisation of Organic Waste Streams into Volatile Fatty Acids |
author |
Silva, F. C. |
author_facet |
Silva, F. C. Serafim, L. S. Nadais, H. Arroja, L. Capela, I. |
author_role |
author |
author2 |
Serafim, L. S. Nadais, H. Arroja, L. Capela, I. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Silva, F. C. Serafim, L. S. Nadais, H. Arroja, L. Capela, I. |
dc.subject.por.fl_str_mv |
ANAEROBIC-DIGESTION BIOHYDROGEN PRODUCTION OPERATING-CONDITIONS CHEESE WHEY WATER SLUDGE PH POLYHYDROXYALKANOATES GLUCOSE |
topic |
ANAEROBIC-DIGESTION BIOHYDROGEN PRODUCTION OPERATING-CONDITIONS CHEESE WHEY WATER SLUDGE PH POLYHYDROXYALKANOATES GLUCOSE |
description |
Anaerobic acidification of eight organic streams (cheese whey, sugarcane molasses, organic fraction of municipal solid wastes (OFMSW), glycerol, soapy slurry, winery wastewater, olive mill effluent, and landfill leachate) was evaluated in batch experiments to determine their acidogenic potential and examine the composition of the produced volatile fatty acids (VFA). Cheese whey, molasses and OFMSW presented the highest acidogenic potentials (0.3 to 0.4 gVFA per g of chemical oxygen demand fed, CODfed) with the predominance of acetic, n-butyric and propionic acids. A further experimental set was applied to cheese whey, by varying food-to-microorganism ratio (F/M) and initial alkalinity. Maximisation of VFA production (up to 0.63 gVFA g(-1)COD(fed)) was obtained for an initial alkalinity of 5 - 7 g L-1 as CaCO3 and F/M ratios of 2 4 gCOD g(-1)VSS. Moreover, it was demonstrated that low F/M ratios combined with high alkalinity supply can shift the VFA profile by increasing the production of propionic and n-valeric acids. The results are useful towards optimal designs for acidogenic processes based on the composition of the VFA produced, since the control of the acidification products is crucial for valorisation in some applications. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-01T00:00:00Z 2013 2017-12-07T19:14:25Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/19488 |
url |
http://hdl.handle.net/10773/19488 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0352-9568 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CROATIAN SOC CHEMICAL ENGINEERING TECHNOLOGY |
publisher.none.fl_str_mv |
CROATIAN SOC CHEMICAL ENGINEERING TECHNOLOGY |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137594589577216 |