Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.scitotenv.2019.05.314 http://hdl.handle.net/11449/228684 |
Resumo: | Energy production based on the proper allocation of environmental liabilities is in line with the concept of sustainability. Flotation sludge (S) is a type of waste derived from the physical treatment of the wastewater generated in significant quantities during chicken slaughter in Brazil. If not treated, this wastewater may contribute to pollution, but further treatment provides clean energy and nutrient recycling. The present study aimed at evaluating the reduction of (S) organic load by means of mono and co-digestion with sweet potatoes (P) while promoting its conversion into energy (methane) and nutrients (digestate). Semi-continuous reactors (60 L capacity) were used with a hydraulic retention time of 25 days. The reactors were fed daily with 2.4 L consisting of 60% digestate recirculation, 40% non-chlorinated water and 4.5% total solids (TS). Using nine reactors and six progressive periods, eleven conditions were evaluated with three replicates each. The percentages of (P) and (S) varied from 0 to 100. The best observed condition in terms of energy recovery and TS removal was 60% of P + 40% of S (p ≤ 0.05), as it presented values of at least an increase of 92% in total biogas volume, an increase of 123% in specific methane production, an increase of 98% in specific methane yield and an increase of 44% in TS removal efficiency compared to mono-digestions. The fertilizer potential of the digestate generated in the different conditions was calculated and evaluated according to the area of (P) production. The results varied from 3.6 to 10.8 ha of (P) using 100 m3 of digestate. A multivariate analysis showed that higher amounts of (P) in substrate composition favor energy recycling while higher concentrations of (S) enhance the production of a digestate with valuable agronomic characteristics. |
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Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recoveryCo-digestionInhibitorsMono-digestionResidues from chicken slaughterSweet potatoEnergy production based on the proper allocation of environmental liabilities is in line with the concept of sustainability. Flotation sludge (S) is a type of waste derived from the physical treatment of the wastewater generated in significant quantities during chicken slaughter in Brazil. If not treated, this wastewater may contribute to pollution, but further treatment provides clean energy and nutrient recycling. The present study aimed at evaluating the reduction of (S) organic load by means of mono and co-digestion with sweet potatoes (P) while promoting its conversion into energy (methane) and nutrients (digestate). Semi-continuous reactors (60 L capacity) were used with a hydraulic retention time of 25 days. The reactors were fed daily with 2.4 L consisting of 60% digestate recirculation, 40% non-chlorinated water and 4.5% total solids (TS). Using nine reactors and six progressive periods, eleven conditions were evaluated with three replicates each. The percentages of (P) and (S) varied from 0 to 100. The best observed condition in terms of energy recovery and TS removal was 60% of P + 40% of S (p ≤ 0.05), as it presented values of at least an increase of 92% in total biogas volume, an increase of 123% in specific methane production, an increase of 98% in specific methane yield and an increase of 44% in TS removal efficiency compared to mono-digestions. The fertilizer potential of the digestate generated in the different conditions was calculated and evaluated according to the area of (P) production. The results varied from 3.6 to 10.8 ha of (P) using 100 m3 of digestate. A multivariate analysis showed that higher amounts of (P) in substrate composition favor energy recycling while higher concentrations of (S) enhance the production of a digestate with valuable agronomic characteristics.Research Group on Water Resources and Environmental Sanitation Western Paraná State University Agricultural Engineering Graduate Program, Rua Universitária, 2069, Jardim UniversitárioDepartment of Rural Engineering São Paulo State University, College of Agricultural and Veterinary Sciences at JaboticabalDepartment of Rural Engineering São Paulo State University, College of Agricultural and Veterinary Sciences at JaboticabalAgricultural Engineering Graduate ProgramUniversidade Estadual Paulista (UNESP)Damaceno, Felippe MartinsBuligon, Eduardo L.Pires Salcedo Restrepo, Juan C.Chiarelotto, MaicoNiedzialkoski, Rosana Kraussde Mendonça Costa, Luiz Antoniode Lucas Junior, Jorge [UNESP]de Mendonça Costa, Monica Sarolli Silva2022-04-29T08:28:04Z2022-04-29T08:28:04Z2019-09-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article773-781http://dx.doi.org/10.1016/j.scitotenv.2019.05.314Science of the Total Environment, v. 683, p. 773-781.1879-10260048-9697http://hdl.handle.net/11449/22868410.1016/j.scitotenv.2019.05.3142-s2.0-85066295601Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScience of the Total Environmentinfo:eu-repo/semantics/openAccess2022-04-29T08:28:04Zoai:repositorio.unesp.br:11449/228684Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-29T08:28:04Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery |
title |
Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery |
spellingShingle |
Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery Damaceno, Felippe Martins Co-digestion Inhibitors Mono-digestion Residues from chicken slaughter Sweet potato |
title_short |
Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery |
title_full |
Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery |
title_fullStr |
Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery |
title_full_unstemmed |
Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery |
title_sort |
Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery |
author |
Damaceno, Felippe Martins |
author_facet |
Damaceno, Felippe Martins Buligon, Eduardo L. Pires Salcedo Restrepo, Juan C. Chiarelotto, Maico Niedzialkoski, Rosana Krauss de Mendonça Costa, Luiz Antonio de Lucas Junior, Jorge [UNESP] de Mendonça Costa, Monica Sarolli Silva |
author_role |
author |
author2 |
Buligon, Eduardo L. Pires Salcedo Restrepo, Juan C. Chiarelotto, Maico Niedzialkoski, Rosana Krauss de Mendonça Costa, Luiz Antonio de Lucas Junior, Jorge [UNESP] de Mendonça Costa, Monica Sarolli Silva |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Agricultural Engineering Graduate Program Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Damaceno, Felippe Martins Buligon, Eduardo L. Pires Salcedo Restrepo, Juan C. Chiarelotto, Maico Niedzialkoski, Rosana Krauss de Mendonça Costa, Luiz Antonio de Lucas Junior, Jorge [UNESP] de Mendonça Costa, Monica Sarolli Silva |
dc.subject.por.fl_str_mv |
Co-digestion Inhibitors Mono-digestion Residues from chicken slaughter Sweet potato |
topic |
Co-digestion Inhibitors Mono-digestion Residues from chicken slaughter Sweet potato |
description |
Energy production based on the proper allocation of environmental liabilities is in line with the concept of sustainability. Flotation sludge (S) is a type of waste derived from the physical treatment of the wastewater generated in significant quantities during chicken slaughter in Brazil. If not treated, this wastewater may contribute to pollution, but further treatment provides clean energy and nutrient recycling. The present study aimed at evaluating the reduction of (S) organic load by means of mono and co-digestion with sweet potatoes (P) while promoting its conversion into energy (methane) and nutrients (digestate). Semi-continuous reactors (60 L capacity) were used with a hydraulic retention time of 25 days. The reactors were fed daily with 2.4 L consisting of 60% digestate recirculation, 40% non-chlorinated water and 4.5% total solids (TS). Using nine reactors and six progressive periods, eleven conditions were evaluated with three replicates each. The percentages of (P) and (S) varied from 0 to 100. The best observed condition in terms of energy recovery and TS removal was 60% of P + 40% of S (p ≤ 0.05), as it presented values of at least an increase of 92% in total biogas volume, an increase of 123% in specific methane production, an increase of 98% in specific methane yield and an increase of 44% in TS removal efficiency compared to mono-digestions. The fertilizer potential of the digestate generated in the different conditions was calculated and evaluated according to the area of (P) production. The results varied from 3.6 to 10.8 ha of (P) using 100 m3 of digestate. A multivariate analysis showed that higher amounts of (P) in substrate composition favor energy recycling while higher concentrations of (S) enhance the production of a digestate with valuable agronomic characteristics. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-09-15 2022-04-29T08:28:04Z 2022-04-29T08:28:04Z |
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://dx.doi.org/10.1016/j.scitotenv.2019.05.314 Science of the Total Environment, v. 683, p. 773-781. 1879-1026 0048-9697 http://hdl.handle.net/11449/228684 10.1016/j.scitotenv.2019.05.314 2-s2.0-85066295601 |
url |
http://dx.doi.org/10.1016/j.scitotenv.2019.05.314 http://hdl.handle.net/11449/228684 |
identifier_str_mv |
Science of the Total Environment, v. 683, p. 773-781. 1879-1026 0048-9697 10.1016/j.scitotenv.2019.05.314 2-s2.0-85066295601 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Science of the Total Environment |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
773-781 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964790634840064 |