ESTUDO DA REMOÇÃO DE ÁCIDO 3,5-DINITROSALICÍLICO POR ADSORÇÃO UTILIZANDO ZEÓLITA NATURAL CLINPTILOLITA
ESTUDO DA REMOÇÃO DE ÁCIDO 3,5-DINITROSALICÍLICO POR ADSORÇÃO UTILIZANDO ZEÓLITA NATURAL CLINPTILOLITA
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DOI: https://doi.org/10.22533/at.ed.5691125310311
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Palavras-chave: DNS, clinoptilolita, adsorção, remoção, pH.
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Keywords: DNS, clinoptilolite, adsorption, removal, pH.
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Abstract: Adsorption is a process in which, through physical or chemical attraction, molecules dissolved in a solution are deposited on the surface of the adsorbent material. The adsorption process has been increasingly used industrially, particularly in the treatment of industrial effluents, as water has become an increasingly valuable resource and of political interest. In this context, it is worthwhile to seek alternatives to treat water contaminated with a common effluent from the analysis of reducing sugars, which is DNS (3,5-dinitrosalicylic acid). Clinoptilolite, a natural zeolite composed of tetrahedral aluminosilicates, appears to be a good candidate as an adsorbent due to its geographical abundance and low acquisition cost. Therefore, the objective of this work is to determine the technical feasibility of using clinoptilolite in the treatment of DNS through the adsorption process. The point of zero charge of 7,21 was determined by evaluating the influence of pH and subsequently evaluating the adsorption of DNS at the point found. The adsorption capacity was 42.857 mg/g. The low adsorption capacity indicates low selectivity for this adsorbent-adsorbate pair.
- Iuri Ferreira Veiga
- Nicole Salvador
- Thais Magnabosco Sisconeto
- Rafael Bruno Vieira
- Thamayne Valadares de Oliveira