Valorisation of inorganic waste for obtaining construction materials
Waste generation, in general, increases with technological development, consequently the interest in environmental protection and health risks have grown in recent years. Therefore, it is necessary to develop strategies that has a beneficial impact on waste reuse and management trying to achieve sus...
| Autor: | |
|---|---|
| Formato: | tesis doctoral |
| Fecha de publicación: | 2017 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | inglés |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/16090 |
| Acesso em linha: | http://hdl.handle.net/10272/16090 |
| Access Level: | acceso abierto |
| Palavra-chave: | Residuos industriales Residuos industriales -- Depuración Residuos industriales -- Aspecto del medio ambiente Industrial wastes Refuse disposal Radioisotopes Construction equipment Civil engineering Eliminación de residuos Radioisótopos Material de construcción Ingeniería civil |
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| dc.title.none.fl_str_mv |
Valorisation of inorganic waste for obtaining construction materials |
| title |
Valorisation of inorganic waste for obtaining construction materials |
| spellingShingle |
Valorisation of inorganic waste for obtaining construction materials Contreras Llanes, Manuel Residuos industriales Residuos industriales -- Depuración Residuos industriales -- Aspecto del medio ambiente Industrial wastes Refuse disposal Radioisotopes Construction equipment Civil engineering Residuos industriales Eliminación de residuos Radioisótopos Material de construcción Ingeniería civil |
| title_short |
Valorisation of inorganic waste for obtaining construction materials |
| title_full |
Valorisation of inorganic waste for obtaining construction materials |
| title_fullStr |
Valorisation of inorganic waste for obtaining construction materials |
| title_full_unstemmed |
Valorisation of inorganic waste for obtaining construction materials |
| title_sort |
Valorisation of inorganic waste for obtaining construction materials |
| dc.creator.none.fl_str_mv |
Contreras Llanes, Manuel |
| author |
Contreras Llanes, Manuel |
| author_facet |
Contreras Llanes, Manuel |
| author_role |
author |
| dc.contributor.none.fl_str_mv |
Bolívar Raya, Juan Pedro Gázquez González, Manuel Jesús Universidad de Huelva. Departamento de Física Aplicada |
| dc.subject.none.fl_str_mv |
Residuos industriales Residuos industriales -- Depuración Residuos industriales -- Aspecto del medio ambiente Industrial wastes Refuse disposal Radioisotopes Construction equipment Civil engineering Residuos industriales Eliminación de residuos Radioisótopos Material de construcción Ingeniería civil |
| topic |
Residuos industriales Residuos industriales -- Depuración Residuos industriales -- Aspecto del medio ambiente Industrial wastes Refuse disposal Radioisotopes Construction equipment Civil engineering Residuos industriales Eliminación de residuos Radioisótopos Material de construcción Ingeniería civil |
| description |
Waste generation, in general, increases with technological development, consequently the interest in environmental protection and health risks have grown in recent years. Therefore, it is necessary to develop strategies that has a beneficial impact on waste reuse and management trying to achieve sustainable development in which the resources used and the waste generated are minimised, as well as trying to achieve a circular economy, incorporating waste and co-products to new materials. This approach has already been included in the European Union waste strategies, prioritizing the prevention in waste generation, as well as the recycling and valorisation of wastes as alternative to their landfilling disposal. The main objective of this Doctoral Thesis was born out of the need to develop new efficient applications with commercial interest as construction materials (ceramics, cement and bricks), depending on the percentage of three types of inorganic residues: (1) Ilmenite mud generated in the production of TiO2 pigment, (2) phosphogypsum from the H3PO4 industry, and (3) construction and demolition waste (CDW). A number of instrumental techniques were deployed to characterise both the wastes used and the new materials designed, such as, X-ray diffraction (XRD), X-ray fluorescence (XRF), inductively coupled plasma mass spectrometry (ICP-MS), inductively coupled plasma optical emission spectrometry (ICP-OES), thermo-gravimetric analysis and differential scanning calorimetry (TGA/DSC) and scanning electron microscopy (SEM). In addition, the technological properties, such as resistance, water absorption, etc., have been compared in relation to traditional commercial materials and evaluated according to the established technical standards. Since, some of the wastes are considered NORM (Naturally Occurring Radioactive Material), the materials obtained were evaluated by alpha and gamma spectrometry, and the environmental implications (leaching and radiological studies) were evaluated. The most prominent findings of the present research can be divided under three main headings: Ilmenite mud Once the physical, chemical, granulometric, micro-structural and radiological properties of this waste were known, the design of new sulphur polymer cements and ceramic bodies adding different percentages were carried out. The results shown that ilmenite mud could be successfully immobilised and valorised as an additive. Theirs technological properties are in agreement with the requirements established in each regulations and, in some cases, the results were even better than those obtained by the reference materials. Finally, it can be concluded that that both materials can be used with negligible environmental impact or health risk. Phosphogypsum This waste has been valorised as an additive in ceramic manufacturing, complying with the international regulations for both technological properties and environmental requirements. Moreover, the addition up to 5 wt.% of phosphogypsum improves the technological properties in relation to the reference material. In addition, this waste has been studied as a calcium source for CO2 mineral sequestration and calcite production with high efficiencies (96 %). The study of the fluxes of metals and radionuclides showed that most of the phosphogypsum pollutants are transferred to calcite (> 95%). Construction and demolition waste (CDW) This waste has been recycled as substitute of natural aggregates to produce bricks. The results shown that low cost bricks with excellent technological properties can be obtained using CDW as an aggregate and lime or cement, as binders. |
| publishDate |
2017 |
| dc.date.none.fl_str_mv |
2017 2017-01-01 2017 2017-01-01 |
| dc.type.none.fl_str_mv |
doctoral thesis http://purl.org/coar/resource_type/c_db06 |
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info:eu-repo/semantics/doctoralThesis |
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doctoralThesis |
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http://hdl.handle.net/10272/16090 |
| url |
http://hdl.handle.net/10272/16090 |
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Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Universidad de Huelva |
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Universidad de Huelva |
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reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva instname:Universidad de Huelva (UHU) |
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Universidad de Huelva (UHU) |
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Arias Montano. Repositorio Institucional de la Universidad de Huelva |
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Arias Montano. Repositorio Institucional de la Universidad de Huelva |
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1869417036363333632 |
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Valorisation of inorganic waste for obtaining construction materialsContreras Llanes, ManuelResiduos industrialesResiduos industriales -- DepuraciónResiduos industriales -- Aspecto del medio ambienteIndustrial wastesRefuse disposalRadioisotopesConstruction equipmentCivil engineeringResiduos industrialesEliminación de residuosRadioisótoposMaterial de construcciónIngeniería civilWaste generation, in general, increases with technological development, consequently the interest in environmental protection and health risks have grown in recent years. Therefore, it is necessary to develop strategies that has a beneficial impact on waste reuse and management trying to achieve sustainable development in which the resources used and the waste generated are minimised, as well as trying to achieve a circular economy, incorporating waste and co-products to new materials. This approach has already been included in the European Union waste strategies, prioritizing the prevention in waste generation, as well as the recycling and valorisation of wastes as alternative to their landfilling disposal. The main objective of this Doctoral Thesis was born out of the need to develop new efficient applications with commercial interest as construction materials (ceramics, cement and bricks), depending on the percentage of three types of inorganic residues: (1) Ilmenite mud generated in the production of TiO2 pigment, (2) phosphogypsum from the H3PO4 industry, and (3) construction and demolition waste (CDW). A number of instrumental techniques were deployed to characterise both the wastes used and the new materials designed, such as, X-ray diffraction (XRD), X-ray fluorescence (XRF), inductively coupled plasma mass spectrometry (ICP-MS), inductively coupled plasma optical emission spectrometry (ICP-OES), thermo-gravimetric analysis and differential scanning calorimetry (TGA/DSC) and scanning electron microscopy (SEM). In addition, the technological properties, such as resistance, water absorption, etc., have been compared in relation to traditional commercial materials and evaluated according to the established technical standards. Since, some of the wastes are considered NORM (Naturally Occurring Radioactive Material), the materials obtained were evaluated by alpha and gamma spectrometry, and the environmental implications (leaching and radiological studies) were evaluated. The most prominent findings of the present research can be divided under three main headings: Ilmenite mud Once the physical, chemical, granulometric, micro-structural and radiological properties of this waste were known, the design of new sulphur polymer cements and ceramic bodies adding different percentages were carried out. The results shown that ilmenite mud could be successfully immobilised and valorised as an additive. Theirs technological properties are in agreement with the requirements established in each regulations and, in some cases, the results were even better than those obtained by the reference materials. Finally, it can be concluded that that both materials can be used with negligible environmental impact or health risk. Phosphogypsum This waste has been valorised as an additive in ceramic manufacturing, complying with the international regulations for both technological properties and environmental requirements. Moreover, the addition up to 5 wt.% of phosphogypsum improves the technological properties in relation to the reference material. In addition, this waste has been studied as a calcium source for CO2 mineral sequestration and calcite production with high efficiencies (96 %). The study of the fluxes of metals and radionuclides showed that most of the phosphogypsum pollutants are transferred to calcite (> 95%). Construction and demolition waste (CDW) This waste has been recycled as substitute of natural aggregates to produce bricks. The results shown that low cost bricks with excellent technological properties can be obtained using CDW as an aggregate and lime or cement, as binders.La generación de residuos, en general, aumenta según incrementa el grado de desarrollo tecnológico de una sociedad, por lo que el interés por la protección del medio ambiente y los riesgos para la salud han florecido en los últimos años. Por tanto, desarrollar estrategias que mejoren la gestión de los residuos tratando de alcanzar un desarrollo sostenible en el que se minimicen los recursos utilizados y los residuos generados es muy necesario, así como tratar de alcanzar una economía circular, incorporando los residuos y co-productos a nuevos materiales. Este enfoque ya ha sido incluido en las estrategias de la Unión Europea en materia de residuos, priorizando la prevención en la generación de residuos, así como el reciclaje y la valorización de estos como alternativa a su depósito en vertedero. El objetivo principal de la presente Tesis Doctoral nace de la necesidad de desarrollar nuevas aplicaciones eficientes y de interés comercial en materiales de construcción (cerámicas, cementos y ladrillos), en base a diferentes porcentajes de tres tipos de residuos inorgánicos: (1) lodo de ilmenita generado en la producción de pigmento de TiO2, (2) fosfoyeso procedente de la industria del H3PO4, y (3) residuos de construcción y demolición (RCD). Para el estudio, tanto de la caracterización de los residuos como de los nuevos materiales diseñados, se han empleado diferentes técnicas instrumentales; entre otras, la difracción y la fluorescencia de rayos X (DRX/FRX), espectrometrías de masas o de emisión óptica con fuente de emisión por plasma de acoplamiento inductivo (ICP-MS/OES), análisis termo-gravimétrico y calorimétrico de barrido diferencial (TGA/DSC), y la microscopía electrónica de barrido (MEB). Las propiedades tecnológicas, como la resistencia, la absorción de agua, etc., han sido comparadas en relación a materiales comerciales tradicionales y evaluadas de acuerdo a los estándares técnicos establecidos. Como algunos de los residuos son considerados NORM (Naturally Occurring Radioactive Material = materiales radioactivos de origen natural), los materiales obtenidos fueron evaluados mediante espectrometría alfa y gamma, y también se evaluaron las implicaciones ambientales de su utilización (estudios de lixiviación y radiológicos). Los resultados más relevantes obtenidos de la presente Tesis Doctoral se pueden dividir en tres bloques: Lodo de ilmenita Una vez conocidas las propiedades físicas, químicas, granulométricas, micro-estructurales y radiológicas de este residuo se llevó a cabo el diseño de nuevos cementos poliméricos sulfurosos y cuerpos cerámicos, incorporando diferentes porcentajes. Los datos obtenidos demostraron que el lodo de ilmenita puede inmovilizarse y valorizarse con éxito al incluirlo como aditivo. Sus propiedades tecnológicas cumplieron sobradamente con los requisitos marcados en las diferentes regulaciones y, en algunos casos, fueron incluso mejores a las de los materiales de referencia. Finalmente, indicar que ambos materiales pueden ser usados sin generar problemas ambientales o de salud para las personas. Fosfoyeso Este residuo ha sido incluido como aditivo en cerámicas, las cuales has cumplido con las normativas internacionales vigentes en relación a las propiedades tecnológicas y con los requisitos ambientales establecidos. Incluso la adición de hasta 5 % de fosfoyeso mejora las propiedades tecnológicas en comparación al material de referencia. Este residuo también ha sido estudiado como fuente de calcio para el secuestro mineral del CO2 y obtención de calcita, obteniéndose altas eficiencias (96 %). El estudio de los flujos de metales y radionucleidos demostraron que la mayor parte de los contaminantes del fosfoyeso se transfieren a la calcita (> 95 %). RCD Este residuo ha sido reciclado como sustituto del agregado natural para la producción ladrillos. Los resultados muestran que pueden obtenerse ladrillos de bajo costo con excelentes propiedades físicas usando RCD como agregado, y cal o cemento como aglutinantes.Universidad de HuelvaBolívar Raya, Juan PedroGázquez González, Manuel JesúsUniversidad de Huelva. Departamento de Física Aplicada20172017-01-0120172017-01-01doctoral thesishttp://purl.org/coar/resource_type/c_db06info:eu-repo/semantics/doctoralThesisapplication/pdfhttp://hdl.handle.net/10272/16090reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/160902026-06-02T14:58:11Z |
| score |
15,812429 |