Beneficial use of dewatered and composted Sewage Sludge as soil amendments: Behaviour of metals in soils and their uptake by plants.
Autor(a) principal: | |
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Data de Publicação: | 2016 |
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/20.500.12207/4509 |
Resumo: | In Portugal, where soils have a very low topsoil organic matter content, the use of sewage sludge (SS) as organic soil improvers seems an attractive option, because it would enable organic matter, N, P, K and other nutrients to be recycled. However, the risk of this practice must be properly assessed. The aim of this study was to evaluate the potential risk of the use of dewatered and composted SS as soil amendments. For this purpose, SS from two different wastewater treatment plants (SS1 and SS2), and a compost produced from SS and agricultural wastes (AWSSC), were characterized for their total metal concentrations, organic contaminants and indicator pathogens, and used in a pot experiment with three application rates, 6, 12 and 24 ton dry matter/ha, cultivated with a hybrid variety of sorghum and Sudan grass (Sorghum bicolor × Sorghum sudanense var. Rocket). SS1 and AWSSC met the legal requirements to be applied to soils, but SS2 had a high content of pathogens, which compromised its use. Both dewatered SS had a marked beneficial effect on plant production and on soil nutritional characteristics, more pronounced than in the case of AWSSC application, without a significant increase in total and in mobile metals concentration in soils. Bioaccumulation factors for metals in plants were low, and their concentrations in the aboveground plant material were lower than the maximum tolerable level for cattle, used as a risk indicator of metal entry into the human food chain. However, it will be necessary, in future studies, to evaluate the potential risk of the observed increase in the mobilisable content of Cu and Zn in soil, as a consequence of the application of these organic materials. © 2016, Springer Science+Business Media Dordrecht. |
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Beneficial use of dewatered and composted Sewage Sludge as soil amendments: Behaviour of metals in soils and their uptake by plants.Agricultural wastesBioaccumulationBiochemistryBiogeochemistryBiological materialsChemicals removal (water treatment)CompostingDewateringMetalsOrganic compoundsRisk assessmentRocketsSewage sludgeWastewater treatmentBioaccumulation factorBioavailabilityComposted sewage sludgesMetal concentrationsNutritional characteristicsOrganic matter contentSoil amendmentWastewater treatment plantsIn Portugal, where soils have a very low topsoil organic matter content, the use of sewage sludge (SS) as organic soil improvers seems an attractive option, because it would enable organic matter, N, P, K and other nutrients to be recycled. However, the risk of this practice must be properly assessed. The aim of this study was to evaluate the potential risk of the use of dewatered and composted SS as soil amendments. For this purpose, SS from two different wastewater treatment plants (SS1 and SS2), and a compost produced from SS and agricultural wastes (AWSSC), were characterized for their total metal concentrations, organic contaminants and indicator pathogens, and used in a pot experiment with three application rates, 6, 12 and 24 ton dry matter/ha, cultivated with a hybrid variety of sorghum and Sudan grass (Sorghum bicolor × Sorghum sudanense var. Rocket). SS1 and AWSSC met the legal requirements to be applied to soils, but SS2 had a high content of pathogens, which compromised its use. Both dewatered SS had a marked beneficial effect on plant production and on soil nutritional characteristics, more pronounced than in the case of AWSSC application, without a significant increase in total and in mobile metals concentration in soils. Bioaccumulation factors for metals in plants were low, and their concentrations in the aboveground plant material were lower than the maximum tolerable level for cattle, used as a risk indicator of metal entry into the human food chain. However, it will be necessary, in future studies, to evaluate the potential risk of the observed increase in the mobilisable content of Cu and Zn in soil, as a consequence of the application of these organic materials. © 2016, Springer Science+Business Media Dordrecht.Springer2017-03-30T10:17:41Z2016-10-01T00:00:00Z2016-10-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/20.500.12207/4509eng18772641https://dx.doi.org/10.1007/s12649-016-9519-zmetadata only accessinfo:eu-repo/semantics/openAccessAlvarenga, PaulaFarto, M.Mourinha, C.Palma, Patríciareponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-06-23T07:46:53Zoai:repositorio.ipbeja.pt:20.500.12207/4509Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T14:58:39.726623Repositório 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 |
Beneficial use of dewatered and composted Sewage Sludge as soil amendments: Behaviour of metals in soils and their uptake by plants. |
title |
Beneficial use of dewatered and composted Sewage Sludge as soil amendments: Behaviour of metals in soils and their uptake by plants. |
spellingShingle |
Beneficial use of dewatered and composted Sewage Sludge as soil amendments: Behaviour of metals in soils and their uptake by plants. Alvarenga, Paula Agricultural wastes Bioaccumulation Biochemistry Biogeochemistry Biological materials Chemicals removal (water treatment) Composting Dewatering Metals Organic compounds Risk assessment Rockets Sewage sludge Wastewater treatment Bioaccumulation factor Bioavailability Composted sewage sludges Metal concentrations Nutritional characteristics Organic matter content Soil amendment Wastewater treatment plants |
title_short |
Beneficial use of dewatered and composted Sewage Sludge as soil amendments: Behaviour of metals in soils and their uptake by plants. |
title_full |
Beneficial use of dewatered and composted Sewage Sludge as soil amendments: Behaviour of metals in soils and their uptake by plants. |
title_fullStr |
Beneficial use of dewatered and composted Sewage Sludge as soil amendments: Behaviour of metals in soils and their uptake by plants. |
title_full_unstemmed |
Beneficial use of dewatered and composted Sewage Sludge as soil amendments: Behaviour of metals in soils and their uptake by plants. |
title_sort |
Beneficial use of dewatered and composted Sewage Sludge as soil amendments: Behaviour of metals in soils and their uptake by plants. |
author |
Alvarenga, Paula |
author_facet |
Alvarenga, Paula Farto, M. Mourinha, C. Palma, Patrícia |
author_role |
author |
author2 |
Farto, M. Mourinha, C. Palma, Patrícia |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Alvarenga, Paula Farto, M. Mourinha, C. Palma, Patrícia |
dc.subject.por.fl_str_mv |
Agricultural wastes Bioaccumulation Biochemistry Biogeochemistry Biological materials Chemicals removal (water treatment) Composting Dewatering Metals Organic compounds Risk assessment Rockets Sewage sludge Wastewater treatment Bioaccumulation factor Bioavailability Composted sewage sludges Metal concentrations Nutritional characteristics Organic matter content Soil amendment Wastewater treatment plants |
topic |
Agricultural wastes Bioaccumulation Biochemistry Biogeochemistry Biological materials Chemicals removal (water treatment) Composting Dewatering Metals Organic compounds Risk assessment Rockets Sewage sludge Wastewater treatment Bioaccumulation factor Bioavailability Composted sewage sludges Metal concentrations Nutritional characteristics Organic matter content Soil amendment Wastewater treatment plants |
description |
In Portugal, where soils have a very low topsoil organic matter content, the use of sewage sludge (SS) as organic soil improvers seems an attractive option, because it would enable organic matter, N, P, K and other nutrients to be recycled. However, the risk of this practice must be properly assessed. The aim of this study was to evaluate the potential risk of the use of dewatered and composted SS as soil amendments. For this purpose, SS from two different wastewater treatment plants (SS1 and SS2), and a compost produced from SS and agricultural wastes (AWSSC), were characterized for their total metal concentrations, organic contaminants and indicator pathogens, and used in a pot experiment with three application rates, 6, 12 and 24 ton dry matter/ha, cultivated with a hybrid variety of sorghum and Sudan grass (Sorghum bicolor × Sorghum sudanense var. Rocket). SS1 and AWSSC met the legal requirements to be applied to soils, but SS2 had a high content of pathogens, which compromised its use. Both dewatered SS had a marked beneficial effect on plant production and on soil nutritional characteristics, more pronounced than in the case of AWSSC application, without a significant increase in total and in mobile metals concentration in soils. Bioaccumulation factors for metals in plants were low, and their concentrations in the aboveground plant material were lower than the maximum tolerable level for cattle, used as a risk indicator of metal entry into the human food chain. However, it will be necessary, in future studies, to evaluate the potential risk of the observed increase in the mobilisable content of Cu and Zn in soil, as a consequence of the application of these organic materials. © 2016, Springer Science+Business Media Dordrecht. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-10-01T00:00:00Z 2016-10-01T00:00:00Z 2017-03-30T10:17:41Z |
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/20.500.12207/4509 |
url |
http://hdl.handle.net/20.500.12207/4509 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
18772641 https://dx.doi.org/10.1007/s12649-016-9519-z |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
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 |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799129860371644416 |