Decantation ponds in the mining industry are high-risk water engineering structures. After ceasing the sedimentation operations, they are subject to a procedure of conservation, closure and ecological rehabilitation and the environmental factors are being monitored throughout the whole procedure. Herewith the situation of decantation ponds in the Caras-Severin County is presented, highlighting the issue of managing and monitoring them after shutdown, legally covered throughout 30 years.

decantation pond; conservation; shutdown; stability; erosion; consequences

Presentation: oral