Use of natural zeolites from Maramures county (Romania) in removal of Cu2+, Pb2+, Zn2+ ions from industrial wastewaters.
Journal Title: Advances in Environmental Sciences - International Journal of the Bioflux Society - Year 2010, Vol 2, Issue 2
Abstract
The use of natural zeolites in wastewaters cleaning is a highly appreciated method especially due to the natural zeolites high ion exchange capacity correlated to their relative low-cost exploitation. In order to study the influence of the solution flow with heavy metals on the adsorption of Cu2+, Pb2+, Zn2+ ions by natural zeolite tuff an installation was performed assuring the solution passing through the zeolite tuff bed. In accordance with the analyses data, the used zeolite tuff contains a high ratio of clinoptilolite, which renders the high quality of the studied tuff. The influence of the three flows (8 BV/h, 10 BV/h and 12 BV/h) on the adsorption process was pursued and it was observed that the highest heavy metal ions retention was registered at lower solution flow. It was also noticed that the natural zeolite tuff used in the experiment had the best affinity for Pb2+ ions.
Authors and Affiliations
Irina Smical, Leonard Mihaly-Cozmuţa, Dan Costin
Keywords
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