“EVRAZ KGOK” JSC (Kachkanar, Russia):

Kuznetsov A. G., Chief Hydraulic Engineer of Engineering Department, e-mail: Aleksandr.Kuznetsov2@evraz.com

Lytin O. V., Head of Tail Facilities Shop

Karelin A. E., Project Manager

Tailing dump of “EVRAZ KGOK” JSC was built according to the project of “Soyuzvodokanalproekt” Institute. This dump has been exploited since 1963. At that time, 786.9 mln m³ of wet magnetic separation tailings has been placed into the tailing dump. Project capacity of existing tailing dump will be exhausted in 6-7 years. Governing body of «EVRAZ KGOK» JSC made a decision about the beginning of works on searching of methods of following tailings storage. For this purpose, the task of development of preliminary feasibility study was given to the Chief Designer of «Mekhanobr Engineering» JSC. In connection with this, the main attention should be given to increasing of safety level and minimization of negative influence on environment. Method of preliminary pulp thickening should be put into the basis of the project.