Small-scale biodigesters in a tropical semi-arid region: impacts on emissions and water, energy and food security.

dc.contributorJÉSSICA BÁRBARA DA SILVA, FEDERAL UNIVERSITY OF PERNAMBUCO; ITA OLIVEIRA-PORTO, FEDERAL UNIVERSITY OF VALE DO SÃO FRANCISCO; BÁRBARA RIBEIRO ALVES ALENCAR, FEDERAL UNIVERSITY OF PERNAMBUCO; EDVALDO PEREIRA SANTOS JÚNIOR, FEDERAL UNIVERSITY OF PERNAMBUCO; DIEGO RIBEIRO DO AMARAL, FEDERAL UNIVERSITY OF PERNAMBUCO; DANIELA SILVA GOMES MOREIRA DO VALLE, FEDERAL UNIVERSITY OF PERNAMBUCO; ITHALO BARBOSA SILVA DE ABREU, FEDERAL UNIVERSITY OF PERNAMBUCO; SUZYANE PORFÍRIO DA SILVA, FEDERAL UNIVERSITY OF PERNAMBUCO; ALINEAUREA FLORENTINO SILVA, CPATSA; ROSEANE SIMÕES DE MOURA, DIACONIA; MONICA CARVALHO, FEDERAL UNIVERSITY OF PARAÍBA; ANTÔNIO CELSO DANTAS ANTONINO, FEDERAL UNIVERSITY OF PERNAMBUCO; ALDO TORRES SALES, FEDERAL UNIVERSITY OF PERNAMBUCO; EMMANUEL DAMILANO DUTRA, FEDERAL UNIVERSITY OF PERNAMBUCO; RÔMULO SIMÕES CEZAR MENEZES, FEDERAL UNIVERSITY OF PERNAMBUCO.
dc.creatorSILVA, J. B. da
dc.creatorPORTO, I. O.
dc.creatorALENCAR, B. R. A.
dc.creatorSANTOS JÚNIOR, E. P.
dc.creatorAMARAL, D. R. do
dc.creatorVALLE, D. S. G. M. do
dc.creatorABREU, I. B. S. de
dc.creatorSILVA, S. P. da
dc.creatorSILVA, A. F.
dc.creatorMOURAM R, S, de
dc.creatorCARVALHO, M.
dc.creatorANTONINO, A. C. D.
dc.creatorSALES, A. T.
dc.creatorDUTRA, E. D.
dc.creatorMENEZES, R. S. C.
dc.date2026-03-31T13:52:21Z
dc.date2026-03-31T13:52:21Z
dc.date2026-03-31
dc.date2025
dc.date.accessioned2026-07-07T06:01:46Z
dc.descriptionDue to the growing search for natural resources to meet human needs, interest has arisen in developing technologies based on the Water-Energy-Food (WEF) nexus. The implementation of biodigesters on small farms is an initiative that aligns with global agendas and the WEF nexus concept. This research aimed to evaluate the integration of a small-scale biodigester prototype locally referred to as "biodigestor sertanejo," on the water, energy, food, and environmental security of smallholder farmers in the semi-arid region of northeastern (NE) Brazil. Primary data were obtained from semi-structured questionnaires. A physical-chemical analysis of the digestate as a biofertilizer was also carried out. The emissions from the biodigester were analyzed using the life cycle assessment method. The use of biodigesters to treat animal waste has positively impacted the lives of families by reducing the proliferation of diseases and the contamination of water resources. Replacing firewood with biogas for cooking also helped reduce the number of cases of respiratory diseases in families by 10.9 %. It was also found that domestic savings of around USD 201.3 per year resulted from the switch to biogas energy.
dc.identifierEnergy Nexus, v. 20, 100602, Dec. 2025.
dc.identifier2772-4271
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1185937
dc.identifier.urihttp://hdl.handle.net/123456789/504751
dc.languageeng
dc.rightsopenAccess
dc.subjectSegurança hídrica
dc.subjectAvaliação do ciclo de vida
dc.subjectTecnologia social
dc.subjectBiodigestor sertanejo
dc.subjectBiodigestor
dc.subjectAgricultura Familiar
dc.subjectBiogás
dc.subjectBiofertilizante
dc.subjectRecurso Natural
dc.subjectPropriedade Rural
dc.subjectPequeno Produtor
dc.subjectLife cycle assessment
dc.titleSmall-scale biodigesters in a tropical semi-arid region: impacts on emissions and water, energy and food security.
dc.typeArtigo de periódico

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