Περιβαλλοντικές επιπτώσεις από παλαιά μεταλλευτική δραστηριότητα στη Βόρεια Λαυρεωτική

Postgraduate Thesis uoadl:1319392 277 Read counter

Unit:
ΠΜΣ με ειδίκευση στην Εφαρμοσμένη Περιβαλλοντική Γεωλογία
Library of the School of Science
Deposit date:
2011-07-13
Year:
2011
Author:
Τσάκου Κωνσταντίνα
Supervisors info:
Νικόλαος Σκαρπέλης Καθηγ. Επιβλέπων, Ξενίδης Άνθιμος Επικ. Καθηγ., Μήτσης Ιωάννης Λέκτορας
Original Title:
Περιβαλλοντικές επιπτώσεις από παλαιά μεταλλευτική δραστηριότητα στη Βόρεια Λαυρεωτική
Languages:
Greek
Summary:
The purpose of this postgraduate thesis work was the study of environmental
impact of past mining activities in Plaka-Adami area (Lavreotiki, SE Attica,
Greece).
Assessment of the environmental impact was conducted by chemical analysis of
toxic elements such as As, Pb, Cd, Hg, Fe, Ni, Cr, Zn, Sb, Cu and anions (NO3-,
SO4, PO4 , Cl) in water samples collected from wells and drills in the region,
as well as drainage waters along the main mine gallery (gallery 80) in
Plaka-Adami. High sulfate and Cl concentrations were detected in water samples
from wells and drills, and elevated arsenic, lead and antimony concentrations
in drainage mine waters.
The environmental mineralogy, chemistry, toxicity test TCLP and Acid Base
Accounting test (ABA) of samples of abandoned mine wastes were investigated to
assess the potential for acid mine drainage, with a view to propose remediation
measures. Acid generation potential is low. Application of conventional dry
covers is proposed for elimination of acid generation.
Preliminary assessment of the potential for acid drainage generation of a
self-heating pyrrhotite dump was carried out as well. Temperatures around 50oC
were measured in the pyrrhotite waste and native sulfur and Fe-sulfates were
identified as products of reactions taken place.
Keywords:
Mine waste , Toxicity characteristics, Acid mine drainage, Plaka, Lavrion
Index:
No
Number of index pages:
0
Contains images:
Yes
Number of references:
39
Number of pages:
113
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