Buscar
Mostrando ítems 1-6 de 6
Artículo
Immobilization of heavy metals (Cd, Ni or Pb) using aluminate geopolymers
(Elsevier, 2018-09)
In the present study, a waste aluminate solution from the anodizing industry was used to synthesize coal fly ash- and blast furnace slag-based geopolymers as metal-immobilizing matrixes. Different alkali-activating agents ...
Artículo
Environmental risks and mechanical evaluation of recycling red mud in bricks
(Elsevier, 2020-07)
More and more by-products are being used in certain materials, especially in the construction industry. Natural construction materials contain amounts of heavy metals and radionuclides, but when by-products are used in ...
Artículo
Low environmental impact process for germanium recovery from an industrial residue
(Elsevier, 2018-11)
This paper focused on the germanium recovery from an Integrated Gasification with Combined Cycle fly ash (IGCC FA). The global process comprised the leaching of the IGCC fly ash with an aqueous solution containing tartaric ...
Artículo
Development of fly ash-based geopolymers using powder sodium silicate activator
(Elsevier, 2022-08)
Geopolymer manufacturing by means a ready-mix procedure using powder sodium silicate as activator is described in this paper. Its characteristics are compared with conventional geopolymers using aqueous sodium silicate. ...
Artículo
Valorization of Bayer Red Mud in a Circular Economy Process: Valuable Metals Recovery and Further Brick Manufacture
(MDPI, 2022)
In this work, the recovery of valuable metals from Bayer red mud using hydrometallurgical techniques and the subsequent use of the solid remaining after leaching as the principal component of the fired bricks were analyzed. ...
Artículo
Carbon fiber waste incorporation in blast furnace slag geopolymer-composites
(Elsevier, 2018-12)
This work evaluates the properties of geopolymer-composites based on blast furnace slag with additions of a carbon fiber waste coming from the aircraft industry. Two parameters were considered: slag/waste ratio (100/0, ...