Mathematical models of the node of technogenic influence, taking into account the main directions of material flows in the logistics of mining enterprises 1Semenenko Ye.V.,2Dziuba S.V., 1Medvedieva O.O.,1Slobodiannykova I.L.,3Haminich O.V.,1Kabakova L.B. 1M.S. Poliakov Institute of Geotechnical Mechanics of the National Academy of Sciences of Ukraine, Dnipro, Ukraine; E-mail: igtmnanu@ukr.net 2Pridniprovsky Scientific Center of the National Academy of Sciences ...

GEOTECHNICAL ANALYSIS OF THE STRUCTURAL INTEGRITY AND BENCH FACE ANGLE OF THE ELLATZITE OPEN-PIT MINE, BULGARIA Stefan Nachev, Ivan Vasilev Ellatzite-Med AD, 2086 Mirkovo, E-mail: s.p.nachev@ellatzite-med.com, i.vasilev@ellatzite-med.com Corresponding author: s.p.nachev@ellatzite-med.com ABSTRACT. The paper presents a geotechnical investigation of the structural integrity of the Ellatzite open-pit mine and considers the achieved bench face angle, while looking at the ...

Advancements in Civil Explosives: Novel Formulations and Sustainable Fuel Solutions  Zdravka Mollova University of Mining and Geology “St. Ivan Rilski”, 1700 Sofia; E-mail: z.mollova@mgu.bg ABSTRACT. The article presents the development of a new explosive mixture based on agricultural ammonium nitrate, possessing high detonation capability, increased water resistance, and physical stability. The concept for its creation is based on ...

PROSPECTS FOR THE INTEGRATION OF QUARTZ-FELDSPAR CONCENTRATE OBTAINED FROM KAOLIN ENRICHMENT INTO CERAMIC PRODUCTION PROCESSES Volodymyr Kotenko, Serhiy Bashynsky, Ihor Piskun State University “Zhytomyr Polytechnic”, 10005 Zhytomyr, E-mail: gef_kvv@ztu.edu.ua; kgt_bsi@ztu.edu.ua; ihor@ztu.edu.ua ABSTRACT. The paper examines the potential use of quartz-feldspar concentrate obtained as a result of kaolin enrichment to meet the growing demand for quartz-feldspar materials, which are essential ...

Utilisation of green waste from mine overburden through bio-electrochemical systems Rosen Ivanov University of Mining and Geology “St. Ivan Rilski”, 1700 Sofia; E-mail: r.ivanov@mgu.bg ABSTRACT. Proper management of overburden materials can reduce the environmental impact and increase the benefits of mining activities. It is important to consider the specific composition of the overburden and local needs when selecting ...

ASSESSMENT OF ZEOLITE USE FOR REMOVAL OF PETROLEUM COMPOUNDS FROM WASTEWATER Gospodinka Gicheva, Alexander Chanachev, Neli Mintcheva University of Mining and Geology “St. Ivan Rilski”, 1700 Sofia; Bulgaria E-mail: g.gicheva@mgu.bg; a.chanachev@mgu.bg; nnmintcheva@mgu.bg Corresponding author: g.gicheva@mgu.bg ABSTRACT. Zeolites are types of inorganic porous materials that have been widely investigated and applied for their excellent sorption ability for wastewater treatment.  Their low ...

INNOVATIVE PROCESS LINE FOR MATERIAL SAMPLE PREPARATION  V. Fedoskina1, O. Yu. Svietkina2, K. A. Ziborov3, M. M. Yerisov4, V. O. Fedoskin5 Dnipro University of Technology, Dnipro, Ukraine Emails: fedoskina.ev@gmail.com, svietkina.o.y@nmu.one, ziborov@nmu.org.ua, erisov@ukr.net, fedoskin.va@ukr.net Corresponding author:fedoskina.ev@gmail.com  ABSTRACT. The successful establishment and sustainable development of mining enterprises depends on a number of factors, including geological research, management of mineral extraction and processing ...

OVERCOMING THE DISADVANTAGES OF THE COAL INDUSTRY AS A SCIENTIFIC APPROACH TO GREENING CARBON ENERGY Alexander Brodt MLTS Group of Kairos Development International Inc., Oakland Av. Pontiac, MI 48324 USA Corresponding author: alexander.brodt@gmail.com ABSTRACT. The problem of stopping carbon dioxide emissions from carbon energy can be solved either by ceasing coal mining or by overcoming the shortcomings of the ...

Enhanced Heavy Metal Extraction from Post-Mining Contaminated Soil through Iron Oxide Nanoparticle Adsorption and Subsequent Phytoremediation  Velichka Arahangelova1, Alexandre Loukanov1,2  1 Laboratory of Engineering NanoBiotechnology, Department of Eng. Geoecology, University of Mining and Geology “St. Ivan Rilski” – Sofia, Bulgaria, E-mails: w.mitova@abv.bg, a.loukanov@mgu.bg 2 Department of Chemistry and Materials Science, National Institute of Technology, Gunma College, 580 Toriba, ...

ACID AND AMMONIA LEACHING OF SECONDARY COPPER SULFIDES Todor Angelov, Ivanka Valchanova University of Mining and Geology “St. Ivan Rilski”, 1700 Sofia Corresponding author: Todor Angelov, E-mail: tangelov419@gmail.bg ABSTRACT. The study focuses on understanding the efficiency and kinetics of copper recovery from secondary sulphide ores, which are increasingly becoming a significant source of copper. An experimental investigation was undertaken to assess the ...