SILVA, K.C.GUILHEN, S.N.IZIDORO, J.C.FUNGARO, D.A.2018-09-252018-09-25SILVA, K.C.; GUILHEN, S.N.; IZIDORO, J.C.; FUNGARO, D.A. Removal of cadmium and zinc from aqueous solutions using zeolite synthesized from coal fly ash and industrial aluminium waste. In: ENCONTRO BRASILEIRO SOBRE ADSORCAO, 12., 23-25 de abril, 2018, Gramado, RS. <b>Anais...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/29209.http://repositorio.ipen.br/handle/123456789/29209Coal fly ash can be used as a source of Silicon and Aluminum for 4A zeolite synthesis. It is necessary to consider the adequate proportion of Si / Al for the synthesis, so the aluminum waste from tertiary industry was used as an alternative and sustainable aluminum source. The synthesis was carried out by alkaline fusion followed by the hydrothermal treatment obtaining sodium aluminosilicate, which was then crystallized in NaOH solution. The samples were characterized by XRF, XRD and cation exchange capacity. The zeolite produced has the capacity to adsorb the Cd (II) and Zn (II) ions from aqueous solutions. The maximum adsorption capacity was 78.0 and 35.8 mg.g-1 for the Cd and Zn, respectively. The results showed that the aluminum waste and the fly ash together can be transformed into zeolite A, considered as value-added material and with promising adsorption properties.openAccessTexto completo de eventohttps://orcid.org/0000-0003-1618-0264https://orcid.org/0000-0003-2604-1225