Remoção de Cu+2 de soluções aquosas em zeólita NaX: efeito da granulometria

Química Nova

Sibele B. C. Pergher²  Marcela Caovilla²  Chaline Detoni²  Nadia R. C. Fernandes Machado¹ 

[1] ,Universidade Regional Integrada do Alto Uruguai e das Missões Departamento de Química Erechim RS

关键词: NaX zeolite;    particle size;    metal adsorption;   

DOI  :  10.1590/S0100-40422005000300006

来源: SciELO

【 摘 要 】

The present study consists in evaluating the NaX zeolite efficiency in removing Cu2+ from aqueous solutions, for future use of NaX in removing metals from wastewaters. The experiments were performed in batch systems (with shaking and continous stirring) and for different time intervals (1 to 24 h). Three particle sizes were employed: < 850 µm, 850 µm - 1 mm and 3 mm. It has been concluded that it is possible to employ the NaX zeolite for metal removal and the particle size plays an important role in the adsorption process. Specifically, NaX zeolites of smaller particle size achieved the maximum adsorption capacity of 152.36 mg of Cu2+/g of zeolite at pH = 4.5.

【 授权许可】

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