The study of the influence of the main parameters in separating the Pb2+ ions from diluted aqueous solutions through perlite absorption

Daniela Maria Sandru, Adrian Turtureanu, Cecilia Georgescu

Volume 19, Issue 3;
Pages: 367-373;
ISSN: 2069-0053 (print) (former ISSN: 1453-1399), Agroprint;
ISSN (online): 2068-9551
Due to the perlite s remarkable properties, we used it in this paper as absorbent material for separating the Pb2+ ions from aqueous solutions. We studied the influence of different parameters on the separation process, such as: absorption time, perlite dosage, the pH of the separated solutions, initial concentration of Pb2+, temperature. An efficient separation of the Pb2+ was achieved by shaking the solutions for 11 minutes, at optimal pH 5, using a perlite dose of 0.5 grams, initial concentration of the Pb2+ ions of 10 mg/dm3 at a temperature of 35°C.
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