2022-09-092022-09-092008-05-13MORAES, Milena Carvalho de. Adsorção de cromato em materiais sintetizados a partir de rejeito de caulim do rio Capim. Orientadora, Vanda Porpino Lemos. 2008. 71 f. Dissertação (Mestrado em Geoquímica e Petrologia) - Programa de Pós-Graduação em Geologia e Geoquímica. Instituto de Geociências, Universidade Federal do Pará, Belém, 2008. Disponível em: http://repositorio.ufpa.br:8080/jspui/handle/2011/14695. Acesso em:.https://repositorio.ufpa.br/handle/2011/14695Industrial and domestic waste cause serious problems for the environment. Industries treatment of kaolin have been deposited reject in large lakes of sedimentation and this has caused accidents as occurred in august/2007 and February/2008. The large volume of kaolin in the lakes sedimentation invaded lakes and rivers from Rio Capim, Para region. This fact resulted in the pollution of waters and death of fish. This problem can be minimized with the use of kaolin reject (KR) in the synthesis of new materials. In this work was used KR treated with organic acid (glycine at concentrations of 5%, 10% and 15% , being obtained the adsorbents: KR-gly-5, KRgly-10 and KL-gly-15, respectively) and mixture NaClO4:HClO4 (proportions 1:50 and 1:75, being obtained the adsorbents KR-NaClO4:HClO4-1:50 and KR- NaClO4:HClO4- 1:75, respectively) and KR as source of Si and Al in the synthesis of zeolites. The materials were characterized by chemical composition and XRD, FTIR, DTA-TG and SEM data. These materials were studied in adsorption process for CrO4 2- from aqueous solutions. The results obtained indicate that the CrO4 2- is adsorbed by kaolin reject and other materials from KR followed this order: KR-gly-10> KR-gly-5>KR-gly-15>KG> KR- NaClO4:HClO4- 1:75> zeolites.Acesso AbertoAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/CaulimAdsorçãoCromatoGlicinaZeólitasRio Capim (PA)DissertaçãoCNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOLOGIAMINERALOGIA E GEOQUÍMICAGEOQUÍMICA E PETROLOGIA