Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/49143
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dc.creatorCosta, Enio Tarso de Souza-
dc.creatorGuilherme, Luiz Roberto Guimarães-
dc.creatorLopes, Guilherme-
dc.creatorLima, José Maria de-
dc.creatorCuri, Nilton-
dc.date.accessioned2022-02-02T18:22:17Z-
dc.date.available2022-02-02T18:22:17Z-
dc.date.issued2021-
dc.identifier.citationCOSTA, E. T. de S. et al. Sorption of Cadmium, Lead, Arsenate, and Phosphate on Red Mud combined with Phosphogypsum. International Journal of Environmental Research, [S.l.], v. 15, p. 427–444, 2021.pt_BR
dc.identifier.urihttps://link.springer.com/article/10.1007/s41742-021-00319-zpt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/49143-
dc.description.abstractThe combination of red mud (RM) and phosphogypsum (PG) is an interesting alternative for reusing these by-products as either adsorbent or soil amendment. In this context, this study aimed to evaluate cation (cadmium and lead) and anion (arsenate and phosphate) adsorption and desorption on RM, PG, and their blendings at different proportions (w/w): 100% PG, 75% PG + 25% RM, 50% PG + 50% RM, 25% PG + 75% RM, and 100% RM. Cadmium, lead, arsenate, and phosphate adsorption and desorption tests were carried out using 0.01 mol L−1 Ca(NO3)2 for cations and 0.03 mol L−1 NaCl for anions. The initial concentrations of cations and anions were 0.33 and 0.66 mmol L−1, respectively, and the equilibrium pH was 5.5 ± 0.2 (adsorbent:solution ratio of 1:100). RM adsorbed 99% of phosphate, 92% of lead, 87% of arsenate, and 26% of cadmium. The blending containing 75% of RM and 25% of PG adsorbed 95% of phosphate, 97% of lead, 76% of arsenate, and 32% of cadmium. The amount of cadmium and arsenate adsorbed increased with increasing RM proportion. Cadmium (16%) and arsenate (6.9%) desorption percentages were higher than lead (0.4%) and phosphate (1.3%). Effectively adsorbed percentages followed the decreasing order: phosphate (98%) > lead (91%) > arsenate (83%) > cadmium (19%) for RM and lead (97%) > phosphate (94%) > arsenate (70%) > cadmium (26%) for the mixture containing 75% of RM and 25% of PG.pt_BR
dc.languageen_USpt_BR
dc.publisherSpringerpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceInternational Journal of Environmental Researchpt_BR
dc.subjectSorptionpt_BR
dc.subjectCationspt_BR
dc.subjectAnionspt_BR
dc.subjectBy-productpt_BR
dc.subjectAdsorbentspt_BR
dc.titleSorption of Cadmium, Lead, Arsenate, and Phosphate on Red Mud combined with Phosphogypsumpt_BR
dc.typeArtigopt_BR
Appears in Collections:DCS - Artigos publicados em periódicos

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