2026-05-27T04:49:46Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/322572026-02-03T11:20:29Zcom_10630_2254col_10630_37953

Microwave-assisted acid treatment for the mineral transformation of chrysotile as an alternative for asbestos waste management Essih, Salima Pardo, Laura Cecilia-Buenestado, Juan Antonio Dos-Santos-Gómez, Lucía Pérez-Colodrero, Rosario Mercedes Pozo, Manuel Calero, Gustavo Franco-Duro, Francisco Ignacio Residuos - Gestión In this work, the efect of microwaveassisted acid treatments on the morphological and crystallochemical characteristics of chrysotile fbers is investigated. A low concentration of nitric acid (0.2 N) is used to remove Mg2+-species located in the octahedral sheet of its structure, thereby causing a crystallo-chemical change forming a skeleton of noncrystalline amorphous silica. This skeleton maintains an elongated morphology but characterized by rounded -not sharp-edges and porous surfaces whose physical resistance under stress is reduced when compared with the initial fbers of chrysotile, favoring a lower pathogenicity of the fbers. Thus, microwaveassisted acid treatment rise as a low-cost, fast and efective option in avoiding the dangerousness associated with asbestos waste management. 2024-07-19T11:32:03Z 2024-07-19T11:32:03Z 2024-07-19T11:32:03Z 2024-07-18 journal article Essih, S., Pardo, L., Cecilia, J.A. et al. Microwave-assisted acid treatment for the mineral transformation of chrysotile as an alternative for asbestos waste management. Environ Geochem Health 46, 332 (2024). https://doi.org/10.1007/s10653-024-01993-6 https://hdl.handle.net/10630/32257 10.1007/s10653-024-01993-6 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Springer