Removal of copper (II) from aqueous solution on NaX zeolite: effect of particle size

Química Nova

Machado, Nadia R. C. Fernandes¹  Pergher, Sibele B. C.¹  Universidade Regional Integrada do Alto Uruguai e das Missões, Erechim¹  Detoni, Chaline¹  Universidade Estadual de Maringá, Maringá¹  Caovilla, Marcela¹ 

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

DOI  :  10.1590/S0100-40422005000300006

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown