E. Salazar, M. Ortiz, Á. Irabien
1991
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Abstract
Chromic acid, coming from sulfuric baths employed in electroplating processes, is one of the most toxic elements to the environment. These processes usually operate at atmospheric conditions and present a Cr concentration of about 125g/l, which leads to a concentration of 5g/l Cr in the waste effluents. In this work the viability of the recovery of chromium by ELM in a mechanically stirred tank was investigated, analyzing the influence of membrane formation and operation variables on membrane stability by means of factorial design of experiments.