PRELIMINARY INVESTIGATIONS ON THE USE OF DIFFERENT NATURAL SORBENTS FOR REMOVAL OF HEAVY METAL FROM ACID MINE DRAINAGE (CASE STUDY: “Larga de Sus” MINE)

Published in Journal of Young Scientist, Vol.I
Written by Gianina DAMIAN, Simona VARVARA, Roxana BOSTAN

Acid mine drainage (AMD) is a widespread environmental problem associated with both working and abandoned mining operations, because it generates acidic solutions containing toxic heavy metal ions, such as Fe2+, Zn2+, Mn2+, Cu2+, Pb2+, which are not biodegradable and tends to accumulate in living organisms causing various diseases. The present study aimed at evaluating the possibility of using two low-cost sorbents, i.e. zeolite volcanic tuff from Rupea (Brasov County, Romania) and peat from “Poiana Stampei” (Suceava County, Romania) in the removal process of the heavy metals (Fe, Zn and Mn) from AMD generated at the abandoned mining perimeter of “Larga de Sus” from Zlatna (Alba County, Romania). The composition of the acid mine drainage from “Larga de Sus” Mine before and after the treatment with natural sorbents was determined by X-ray fluorescence spectroscopy. The removal efficiency of Fe, Zn and Mn from AMD was determined at different doses and grain sizes of the natural zeolite and peat. The preliminary results showed that both sorbents can be used as a low cost alternative in the treatment of AMD.

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Damian G., Varvara S., Bostan R. 2013, PRELIMINARY INVESTIGATIONS ON THE USE OF DIFFERENT NATURAL SORBENTS FOR REMOVAL OF HEAVY METAL FROM ACID MINE DRAINAGE (CASE STUDY: “Larga de Sus” MINE) . Journal of Young Scientist, Vol.I, ISSN 2344 - 1283, 95-114.


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