2000
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CIENCIA ergo-sum, Revista Científica Multidisciplinaria de Prospectiva
Thelma B. Pavón Silva et al., « Remoción de níquel, cadmio y zinc del agua, utilizando clinoptilolita heulandita », Ciencia Ergo Sum, ID : 10670/1.5a11b9
"The process which involves ionic exchange was applied with the use of a Mexican zeolitic mineral (Taxco-Guerrero) to remove Zn, Cd, and Ni from an aqueous solutions. Mineral zeolitic samples in their sodium form were put in contact with Zn(NO3)2, Cd(NO3)2 and Ni(NO3)2 solutions of 0.01 N for 8 days. After the process of ionic exchange, the metallic elements were determined by Electron Microscopy (EDAX). In previous work, the mineral composition was indentified as a mixuture of clinoptilolite and heulandite of the Mexican zeolitic material. "