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PROPOSALS TO ELIMINATE THE RISK SITUATION BY MONITORING AND ECOLOGICAL CLOSING THE ORE SLUDGE DUMP FROM S.C. “ALOR” S.A., ORADEA, THE WESTERN PART OF ROMANIA

AUTHOR/S: C. M. ORLESCU, I. A. COSTESCU
Sunday 1 August 2010 by Libadmin2010

10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 2, 709-716 pp

ABSTRACT

The present theme approaches a very characteristic theme, analyzing the impact of
wastes generated by tabular and calcified alumina industry on our environment. The
industrial unit that is the object of this present study S.C. “Alor” S.A. is located in the
Oradea municipality. Oradea municipality is located in the north-western part of
Romania and is crossed over by the River Crişul Repede. S.C. “Alor” S.A. has as main
activity profile tabular and calcified alumina production in various production sections.
The main pollutant elements specific to the resulted discharges from technologic
processes of S.C. “Alor” S.A. are: aluminum, iron, sodium hydroxide, ammonia,
hydrochloric acid, suspensions, chlorides, sulphate, carbonates, etc. All the pollution
produced (with smaller or higher intentions) over the air, surface and underground
waters, soils, flora and fauna by the discharges of the production process were
intensified, studied and evaluate by the specific organisms in the field. From this the
dumps were indicated as the major pollution sources. Also, are presented the required
measures for reconstruction and ecological closing of exploited and respectively
exhausted ore sludge waste dumps. The authors present also constructive solutions.

Keywords: tabular alumina, calcified alumina, ore sludge dump, environment protection