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Browsing by Author "Contreras Llanes, Manuel"
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A Review of the Commercial Uses of Sulphate Minerals from the Titanium Dioxide Pigment Industry: The Case of Huelva (Spain)
Gázquez González, Manuel Jesús
; Contreras Llanes, Manuel; Pérez Moreno, Silvia María; Guerrero Márquez, José Luis; Casas Ruiz, Melquiades; Bolívar Raya, Juan Pedro (MDPI, 2021)
This study was focused on the historical evolution of the waste management policy carried out by the Spanish industry devoted to titanium dioxide pigments manufacturing for minimising its environmental impact. This challenge ... -
Construction and demolition waste as recycled aggregate for environmentally friendly concrete paving
Contreras Llanes, Manuel; Bolívar Raya, Juan Pedro; Gázquez González, Manuel Jesús; Romero, Maximina (Springer, 2021-09-10)
Recycled aggregates (RA) from construction and demolition waste (CDW) instead of natural aggregates (NA) were analysed in the manufacture of new eco-friendly concrete. Fine (FRA) and coarse (CRA) recycled aggregates were ... -
Fractionation and fluxes of metals and radionuclides during the recycling process of phosphogypsum wastes applied to mineral CO2 sequestration
Contreras Llanes, Manuel; Pérez López, Rafael; Gázquez González, Manuel Jesús; Morales Flórez, V.; Santos, Alberto; Esquivias, Luis; Bolívar Raya, Juan Pedro (Elsevier, 2015-11)
The industry of phosphoric acid produces a calcium-rich by-product known as phosphogypsum, which is usually stored in large stacks of millions of tons. Up to now, no commercial application has been widely implemented for ... -
Manufacture of ceramic bodies by using a mud waste from the TiO2 pigmentindustry
Contreras Llanes, Manuel; Martín, M. I.; Gázquez González, Manuel Jesús; Romero, M.; Bolívar Raya, Juan Pedro (Trans Tech Publications, 2015)
The main objective of this paper is focused in the use of a waste generated by the TiO2 pigment industry, ilmenite mud (MUD), on the production of ceramic bodies. These ceramic bodies were produced from mixtures of a ... -
Recycled Aggregates from Construction and DemolitionWaste in the Manufacture of Urban Pavements
Contreras Llanes, Manuel; Romero, Maximina; Gázquez González, Manuel Jesús; Bolívar Raya, Juan Pedro (MDPI, 2021)
Construction and Demolition Waste (CDW) is among the largest waste streams in the world. Therefore, within the Circular Economy concept, there is a growing interest in its reuse. The purpose of this work was to study the ... -
Residence in an Area with Environmental Exposure to Heavy Metals and Neurobehavioral Performance in Children 9–11 Years Old: An Explorative Study
Capelo Álvarez, Rocío; Rohlman, Diane S.; Jara Biedma, Rocío; García Barrera, Tamara; Viñas, Jesús; Lorca Marín, José Andrés; Contreras Llanes, Manuel; Alguacil Ojeda, Juan (MDPI, 2022)
We explored the association between residence in an area polluted with metals and neurobehavioral performance in children aged 9 to 11. A cross-sectional study was conducted with thirty boys and thirty girls aged 9 to 11 ... -
Valorisation of ilmenite mud waste in the manufacture of commercial ceramic
Contreras Llanes, Manuel; Martín, M. I.; Gázquez González, Manuel Jesús; Romero, M.; Bolívar Raya, Juan Pedro (Elsevier, 2014)
This paper reports the results of a study focused on the production of ceramic tiles from ilmenite mud (MUD), a waste generated by the industry devoted to the TiO2 pigment production. Ceramic tiles were produced from ... -
Valorisation of inorganic waste for obtaining construction materials
Contreras Llanes, Manuel (Universidad de Huelva, 2017)
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 ... -
Valorisation of waste ilmenite mud in the manufacture of sulphur polymer cement
Contreras Llanes, Manuel; Gázquez González, Manuel Jesús; García Díaz, Irene; Alguacil, Francisco J.; López, Félix A.; Bolívar Raya, Juan Pedro (Elsevier, 2013)
This paper reports the preparation of sulphur polymer cements (SPCs) incorporating waste ilmenite mud for use in concrete construction works. The ilmenite mud raw material and the mud-containing SPCs (IMC-SPCs) were ...
