Reuse of Pretreated Agro-Industrial Wastewaters for Hydroponic Production of Lettuce

Detalhes bibliográficos
Autor(a) principal: Afonso, Alexandra
Data de Publicação: 2023
Outros Autores: Regato, Mariana, Patanita, Mariana, Luz, Silvana, Carvalho, Maria João, Fernandes, Annabel, Lopes, Ana, Almeida, Adelaide, Costa, Idália, Carvalho, Fátima
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.6/13888
Resumo: The utilization of agro-industrial wastewaters (AIWWs), pretreated by immediate one-step lime precipitation + natural carbonation, as a nutritive solution for the hydroponic production of lettuce was evaluated. The AIWWs studied were olive mill wastewater (OMW), winery wastewater (WW), and cheese whey wastewater (CWW). Lettuces (Lactuca sativa L. var. crispa) were grown in a closed nutrient film technique hydroponic system, using the pretreated AIWWs (OMW-T, WW-T, and CWW-T) and a control nutrient solution (CNS). The growth and sensory analysis of lettuces and the environmental parameters of effluents after hydroponics were evaluated. The average number of lettuce leaves obtained with nutrient solutions prepared with AIWW-T was lower than that from CNS, but the highest lettuce chlorophyll content was attained with CWW-T, which also presented the best grow results. In general, sensory analysis did not show significant differences from the lettuces grown in the different pretreated AIWWs and CNS. As for the environmental parameters of the effluents from hydroponics, according to the Portuguese legislation, only the chemical oxygen demand of the OMW-T and WW-T presented slightly higher values than that of the environmental limit values for discharge in surface waters, showing the feasibility of using pretreated agro-industrial effluents in hydroponic lettuce cultivation, while obtaining a treated effluent, in a circular economy perspective.
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spelling Reuse of Pretreated Agro-Industrial Wastewaters for Hydroponic Production of LettuceAgro-industrial wastewatersHydroponicsLettuce cropSensory analysisCircular economyThe utilization of agro-industrial wastewaters (AIWWs), pretreated by immediate one-step lime precipitation + natural carbonation, as a nutritive solution for the hydroponic production of lettuce was evaluated. The AIWWs studied were olive mill wastewater (OMW), winery wastewater (WW), and cheese whey wastewater (CWW). Lettuces (Lactuca sativa L. var. crispa) were grown in a closed nutrient film technique hydroponic system, using the pretreated AIWWs (OMW-T, WW-T, and CWW-T) and a control nutrient solution (CNS). The growth and sensory analysis of lettuces and the environmental parameters of effluents after hydroponics were evaluated. The average number of lettuce leaves obtained with nutrient solutions prepared with AIWW-T was lower than that from CNS, but the highest lettuce chlorophyll content was attained with CWW-T, which also presented the best grow results. In general, sensory analysis did not show significant differences from the lettuces grown in the different pretreated AIWWs and CNS. As for the environmental parameters of the effluents from hydroponics, according to the Portuguese legislation, only the chemical oxygen demand of the OMW-T and WW-T presented slightly higher values than that of the environmental limit values for discharge in surface waters, showing the feasibility of using pretreated agro-industrial effluents in hydroponic lettuce cultivation, while obtaining a treated effluent, in a circular economy perspective.This research was funded by NETA project, New Strategies in Wastewater Treatment (POCI-01-0247-FEDER-046959), through PORTUGAL2020, by Carbo2Soil project (PRR-C05-i03-I000030), through Plano de Recuperação e Resiliência (PRR), and by Fundação para a Ciência e a Tecnologia, FCT, project UIDB/00195/2020, Ph.D. grant 2020.04822.BD awarded to A. Afonso, and contract awarded to A. Fernandes.MDPI PRR-C05-i03-I-000030uBibliorumAfonso, AlexandraRegato, MarianaPatanita, MarianaLuz, SilvanaCarvalho, Maria JoãoFernandes, AnnabelLopes, AnaAlmeida, AdelaideCosta, IdáliaCarvalho, Fátima2024-01-08T14:29:34Z2023-05-132023-05-13T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.6/13888engAfonso, A.; Regato, M.; Patanita, M.; Luz, S.; Carvalho, M.J.; Fernandes, A.; Lopes, A.; Almeida, A.; Costa, I.; Carvalho, F. Reuse of Pretreated Agro-Industrial Wastewaters for Hydroponic Production of Lettuce. Water 2023, 15, 1856. https://doi.org/10.3390/w1510185610.3390/w15101856info: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:RCAAP2024-02-07T02:31:04Zoai:ubibliorum.ubi.pt:10400.6/13888Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:31:18.618113Repositório 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 Reuse of Pretreated Agro-Industrial Wastewaters for Hydroponic Production of Lettuce
title Reuse of Pretreated Agro-Industrial Wastewaters for Hydroponic Production of Lettuce
spellingShingle Reuse of Pretreated Agro-Industrial Wastewaters for Hydroponic Production of Lettuce
Afonso, Alexandra
Agro-industrial wastewaters
Hydroponics
Lettuce crop
Sensory analysis
Circular economy
title_short Reuse of Pretreated Agro-Industrial Wastewaters for Hydroponic Production of Lettuce
title_full Reuse of Pretreated Agro-Industrial Wastewaters for Hydroponic Production of Lettuce
title_fullStr Reuse of Pretreated Agro-Industrial Wastewaters for Hydroponic Production of Lettuce
title_full_unstemmed Reuse of Pretreated Agro-Industrial Wastewaters for Hydroponic Production of Lettuce
title_sort Reuse of Pretreated Agro-Industrial Wastewaters for Hydroponic Production of Lettuce
author Afonso, Alexandra
author_facet Afonso, Alexandra
Regato, Mariana
Patanita, Mariana
Luz, Silvana
Carvalho, Maria João
Fernandes, Annabel
Lopes, Ana
Almeida, Adelaide
Costa, Idália
Carvalho, Fátima
author_role author
author2 Regato, Mariana
Patanita, Mariana
Luz, Silvana
Carvalho, Maria João
Fernandes, Annabel
Lopes, Ana
Almeida, Adelaide
Costa, Idália
Carvalho, Fátima
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv uBibliorum
dc.contributor.author.fl_str_mv Afonso, Alexandra
Regato, Mariana
Patanita, Mariana
Luz, Silvana
Carvalho, Maria João
Fernandes, Annabel
Lopes, Ana
Almeida, Adelaide
Costa, Idália
Carvalho, Fátima
dc.subject.por.fl_str_mv Agro-industrial wastewaters
Hydroponics
Lettuce crop
Sensory analysis
Circular economy
topic Agro-industrial wastewaters
Hydroponics
Lettuce crop
Sensory analysis
Circular economy
description The utilization of agro-industrial wastewaters (AIWWs), pretreated by immediate one-step lime precipitation + natural carbonation, as a nutritive solution for the hydroponic production of lettuce was evaluated. The AIWWs studied were olive mill wastewater (OMW), winery wastewater (WW), and cheese whey wastewater (CWW). Lettuces (Lactuca sativa L. var. crispa) were grown in a closed nutrient film technique hydroponic system, using the pretreated AIWWs (OMW-T, WW-T, and CWW-T) and a control nutrient solution (CNS). The growth and sensory analysis of lettuces and the environmental parameters of effluents after hydroponics were evaluated. The average number of lettuce leaves obtained with nutrient solutions prepared with AIWW-T was lower than that from CNS, but the highest lettuce chlorophyll content was attained with CWW-T, which also presented the best grow results. In general, sensory analysis did not show significant differences from the lettuces grown in the different pretreated AIWWs and CNS. As for the environmental parameters of the effluents from hydroponics, according to the Portuguese legislation, only the chemical oxygen demand of the OMW-T and WW-T presented slightly higher values than that of the environmental limit values for discharge in surface waters, showing the feasibility of using pretreated agro-industrial effluents in hydroponic lettuce cultivation, while obtaining a treated effluent, in a circular economy perspective.
publishDate 2023
dc.date.none.fl_str_mv 2023-05-13
2023-05-13T00:00:00Z
2024-01-08T14:29:34Z
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/10400.6/13888
url http://hdl.handle.net/10400.6/13888
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Afonso, A.; Regato, M.; Patanita, M.; Luz, S.; Carvalho, M.J.; Fernandes, A.; Lopes, A.; Almeida, A.; Costa, I.; Carvalho, F. Reuse of Pretreated Agro-Industrial Wastewaters for Hydroponic Production of Lettuce. Water 2023, 15, 1856. https://doi.org/10.3390/w15101856
10.3390/w15101856
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 MDPI PRR-C05-i03-I-000030
publisher.none.fl_str_mv MDPI PRR-C05-i03-I-000030
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
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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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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