Publicação
Effects of organic/inorganic amendments on trace elements dispersion by leachates from sulfide-containing tailings of São Domingos mine, Portugal. Time evaluation
| Resumo: | Greenhouse pot experiments were conducted over 13 months to evaluate the effect of two amendment mixture doses (30 and 75 Mg/ha) on the geochemical dispersion of trace elements by leaching hazardous mine wastes from the São Domingos mine. Mineralogical evolution of these materials was also evaluated. Amendment mixtures containing solid wastes from agriculture (plant remains + strawberry substrate and rockwool used for the strawberry crop) and fromdistillation of Ceratonia siliqua L. and Arbutus unedo L. fruitswere used to improve the chemical characteristics of leachates fromsulfide minewastes. Sulfide mine wastes had acidic characteristics, aswell as high electrical conductivity and total element concentrations (g/kg; Al: 54.8–61.2; Fe: 104.0–110.0; Pb: 9.0–13.8; S: 63.6–68.0; As: ≈1). These features contributed to the large capacity for leaching of hazardous elements during, at least, the first fourmonths of incubation. In the seventh month of incubation, therewas a significant decrease in the leachate concentration of the majority of hazardous elements. The addition of amendments minimised trace element dispersion in leachate percolation during the first seven months (25 to 99% reduction compared to control, depending on the element and sampling period). However, the leachate characteristics were not influenced by amendment doses and no significant differences were observed in leachate composition (control and amended treatments) after 13 months. Amendment application led to differences between the solid phases of the efflorescent salts formed on the surface of the control and the amended treatments. The efflorescent salts contained very soluble aluminium sulfates, together with alunite–jarosite-group solid phases in amended samples, and copiapite-group solid phases in control. In the core materials (5 to 10 cmin depth), themineralogy was similar in both control and amended samples. The presence of various stable solid phases from alunite– jarosite-group, such as jarosite and beudantite (mainly in deeper materials), can explain the low concentrations of trace elements in the leachates after thirteen months |
|---|---|
| Autores principais: | Santos, Erika S. |
| Outros Autores: | Magalhães, Maria Clara F.; Abreu, Maria Manuela; Macías, Felipe |
| Assunto: | alunite-jarosite-group arsenic copiapite group lead percolation leachates |
| Ano: | 2014 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| _version_ | 1866809415734132736 |
|---|---|
| author | Santos, Erika S. |
| author2 | Magalhães, Maria Clara F. Abreu, Maria Manuela Macías, Felipe |
| author2_role | author author author |
| author_facet | Santos, Erika S. Magalhães, Maria Clara F. Abreu, Maria Manuela Macías, Felipe |
| author_role | author |
| contributor_name_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Santos, Erika S.\"},{\"Person.name\":\"Magalhães, Maria Clara F.\"},{\"Person.name\":\"Abreu, Maria Manuela\",\"Person.identifier.orcid\":\"0000-0002-6650-1161\"},{\"Person.name\":\"Macías, Felipe\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| datacite.creators.creator.creatorName.fl_str_mv | Santos, Erika S. Magalhães, Maria Clara F. Abreu, Maria Manuela Macías, Felipe |
| datacite.date.Accepted.fl_str_mv | 2014-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2017-05-08T13:02:38Z |
| datacite.date.embargoed.fl_str_mv | 2017-05-08T13:02:38Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | alunite-jarosite-group arsenic copiapite group lead percolation leachates |
| datacite.titles.title.fl_str_mv | Effects of organic/inorganic amendments on trace elements dispersion by leachates from sulfide-containing tailings of São Domingos mine, Portugal. Time evaluation |
| dc.contributor.none.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| dc.creator.none.fl_str_mv | Santos, Erika S. Magalhães, Maria Clara F. Abreu, Maria Manuela Macías, Felipe |
| dc.date.Accepted.fl_str_mv | 2014-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2017-05-08T13:02:38Z |
| dc.date.embargoed.fl_str_mv | 2017-05-08T13:02:38Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.5/13611 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | alunite-jarosite-group arsenic copiapite group lead percolation leachates |
| dc.title.fl_str_mv | Effects of organic/inorganic amendments on trace elements dispersion by leachates from sulfide-containing tailings of São Domingos mine, Portugal. Time evaluation |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Greenhouse pot experiments were conducted over 13 months to evaluate the effect of two amendment mixture doses (30 and 75 Mg/ha) on the geochemical dispersion of trace elements by leaching hazardous mine wastes from the São Domingos mine. Mineralogical evolution of these materials was also evaluated. Amendment mixtures containing solid wastes from agriculture (plant remains + strawberry substrate and rockwool used for the strawberry crop) and fromdistillation of Ceratonia siliqua L. and Arbutus unedo L. fruitswere used to improve the chemical characteristics of leachates fromsulfide minewastes. Sulfide mine wastes had acidic characteristics, aswell as high electrical conductivity and total element concentrations (g/kg; Al: 54.8–61.2; Fe: 104.0–110.0; Pb: 9.0–13.8; S: 63.6–68.0; As: ≈1). These features contributed to the large capacity for leaching of hazardous elements during, at least, the first fourmonths of incubation. In the seventh month of incubation, therewas a significant decrease in the leachate concentration of the majority of hazardous elements. The addition of amendments minimised trace element dispersion in leachate percolation during the first seven months (25 to 99% reduction compared to control, depending on the element and sampling period). However, the leachate characteristics were not influenced by amendment doses and no significant differences were observed in leachate composition (control and amended treatments) after 13 months. Amendment application led to differences between the solid phases of the efflorescent salts formed on the surface of the control and the amended treatments. The efflorescent salts contained very soluble aluminium sulfates, together with alunite–jarosite-group solid phases in amended samples, and copiapite-group solid phases in control. In the core materials (5 to 10 cmin depth), themineralogy was similar in both control and amended samples. The presence of various stable solid phases from alunite– jarosite-group, such as jarosite and beudantite (mainly in deeper materials), can explain the low concentrations of trace elements in the leachates after thirteen months |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ulisboa.pt/bitstreams/512687e3-08c0-4428-80a8-350f222949aa/download |
| id | ul_8b7b9656d724ddb80a4edc5fa9986709 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.5/13611 |
| instacron_str | ul |
| institution | Universidade de Lisboa |
| instname_str | Universidade de Lisboa |
| language | eng |
| network_acronym_str | ul |
| network_name_str | Repositório da Universidade de Lisboa |
| oai_identifier_str | oai:repositorio.ulisboa.pt:10400.5/13611 |
| organization_str_mv | urn:organizationAcronym:ul |
| person_str_mv | Santos, Erika S. Magalhães, Maria Clara F. Abreu, Maria Manuela Abreu, Maria Manuela https://www.ciencia-id.pt/D113-42C0-47FE D113-42C0-47FE http://orcid.org/0000-0002-6650-1161 0000-0002-6650-1161 Macías, Felipe |
| publishDate | 2014 |
| publisher.none.fl_str_mv | Elsevier |
| reponame_str | Repositório da Universidade de Lisboa |
| repository_id_str | urn:repositoryAcronym:ul |
| service_str_mv | urn:repositoryAcronym:ul |
| spelling | engElsevierpt_PTGreenhouse pot experiments were conducted over 13 months to evaluate the effect of two amendment mixture doses (30 and 75 Mg/ha) on the geochemical dispersion of trace elements by leaching hazardous mine wastes from the São Domingos mine. Mineralogical evolution of these materials was also evaluated. Amendment mixtures containing solid wastes from agriculture (plant remains + strawberry substrate and rockwool used for the strawberry crop) and fromdistillation of Ceratonia siliqua L. and Arbutus unedo L. fruitswere used to improve the chemical characteristics of leachates fromsulfide minewastes. Sulfide mine wastes had acidic characteristics, aswell as high electrical conductivity and total element concentrations (g/kg; Al: 54.8–61.2; Fe: 104.0–110.0; Pb: 9.0–13.8; S: 63.6–68.0; As: ≈1). These features contributed to the large capacity for leaching of hazardous elements during, at least, the first fourmonths of incubation. In the seventh month of incubation, therewas a significant decrease in the leachate concentration of the majority of hazardous elements. The addition of amendments minimised trace element dispersion in leachate percolation during the first seven months (25 to 99% reduction compared to control, depending on the element and sampling period). However, the leachate characteristics were not influenced by amendment doses and no significant differences were observed in leachate composition (control and amended treatments) after 13 months. Amendment application led to differences between the solid phases of the efflorescent salts formed on the surface of the control and the amended treatments. The efflorescent salts contained very soluble aluminium sulfates, together with alunite–jarosite-group solid phases in amended samples, and copiapite-group solid phases in control. In the core materials (5 to 10 cmin depth), themineralogy was similar in both control and amended samples. The presence of various stable solid phases from alunite– jarosite-group, such as jarosite and beudantite (mainly in deeper materials), can explain the low concentrations of trace elements in the leachates after thirteen monthsapplication/pdfpt_PTEffects of organic/inorganic amendments on trace elements dispersion by leachates from sulfide-containing tailings of São Domingos mine, Portugal. Time evaluationSantos, Erika S.Magalhães, Maria Clara F.PersonalAbreu, Maria ManuelaDSpacehttp://dspace.org/items/0170a556-8289-4061-a596-47bce69d2a0eDSpacehttp://dspace.org/items/0170a556-8289-4061-a596-47bce69d2a0eAbreuMaria ManuelaCiência IDhttps://www.ciencia-id.ptD113-42C0-47FEORCIDhttp://orcid.org0000-0002-6650-1161Scopus Author IDhttps://www.scopus.com15072803300Macías, FelipeHostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.ptDOIIsPartOfhttp://dx.doi.org/10.1016/geoderma.2014.02.0042017-05-08T13:02:38Z20142014-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.5/13611http://purl.org/coar/access_right/c_abf2open accessalunite-jarosite-grouparseniccopiapite groupleadpercolation leachates1783465 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/512687e3-08c0-4428-80a8-350f222949aa/downloadGeoderma |
| spellingShingle | Effects of organic/inorganic amendments on trace elements dispersion by leachates from sulfide-containing tailings of São Domingos mine, Portugal. Time evaluation Santos, Erika S. alunite-jarosite-group arsenic copiapite group lead percolation leachates |
| status | SINGLETON |
| subject.fl_str_mv | alunite-jarosite-group arsenic copiapite group lead percolation leachates |
| title | Effects of organic/inorganic amendments on trace elements dispersion by leachates from sulfide-containing tailings of São Domingos mine, Portugal. Time evaluation |
| title_full | Effects of organic/inorganic amendments on trace elements dispersion by leachates from sulfide-containing tailings of São Domingos mine, Portugal. Time evaluation |
| title_fullStr | Effects of organic/inorganic amendments on trace elements dispersion by leachates from sulfide-containing tailings of São Domingos mine, Portugal. Time evaluation |
| title_full_unstemmed | Effects of organic/inorganic amendments on trace elements dispersion by leachates from sulfide-containing tailings of São Domingos mine, Portugal. Time evaluation |
| title_short | Effects of organic/inorganic amendments on trace elements dispersion by leachates from sulfide-containing tailings of São Domingos mine, Portugal. Time evaluation |
| title_sort | Effects of organic/inorganic amendments on trace elements dispersion by leachates from sulfide-containing tailings of São Domingos mine, Portugal. Time evaluation |
| topic | alunite-jarosite-group arsenic copiapite group lead percolation leachates |
| topic_facet | alunite-jarosite-group arsenic copiapite group lead percolation leachates |
| url | http://hdl.handle.net/10400.5/13611 |
| visible | 1 |