Publications and communications of Stoyan Gaydardzhiev

Articles in scientific journals with peer reviewing

Vardanyan, A., Khachatryan, A., Castro, L., Willscher, S., Gaydardzhiev, S., Zhang, R., & Vardanyan, N. (08 February 2023). Bioleaching of Sulfide Minerals by Leptospirillum ferriphilum CC from Polymetallic Mine (Armenia). Minerals, 13 (2), 243. doi:10.3390/min13020243

Vardanyan, A., Vardanyan, N., Aatach, M., Malavasi, P., & Gaydardzhiev, S. (06 December 2022). Bio-Assisted Leaching of Non-Ferrous Metals from Waste Printed Circuit Boards-Importance of Process Parameters. Metals, 12 (12), 2092. doi:10.3390/met12122092

Vardanyan, A., Vardanyan, N., Abrahamyan, N., Aatach, M., & Gaydardzhiev, S. (2022). Sequential biologically assisted extraction of Cu and Zn from printed circuit boards (PCB). International Journal of Environmental Studies, 1-16. doi:10.1080/00207233.2022.2126122

Shikika, A., Zabene, F., Muvundja, F., Mugumaoderha, M., Colaux, J., Aatach, M., & Gaydardzhiev, S. (2021). Extraction of Ta and Nb from a Coltan Bearing Ore by Means of Ammonium Bifluoride Fluorination and Sulfuric Acid Leaching. Minerals. doi:10.3390/min11121392

Shikika, A., Muvundja, F., Mugumaoderha, M., & Gaydardzhiev, S. (March 2021). Extraction of Nb and Ta from a coltan ore from South Kivu in the DRC by alkaline roasting - thermodynamic and kinetic aspects. Minerals Engineering, 163. doi:10.1016/j.mineng.2020.106751

Shikika, A., Sethurajan, M., Muvundja, F., Mugumaoderha, M., & Gaydardzhiev, S. (2020). A review on extractive metallurgy of tantalum and niobium. Hydrometallurgy. doi:10.1016/j.hydromet.2020.105496

Mafra, C., Bouzahzah, H., Stamenov, L., & Gaydardzhiev, S. (14 September 2020). Insights on the effect of pyrite liberation degree upon the acid mine drainage potential of sulfide flotation tailings. Applied Geochemistry, 23. doi:10.1016/j.apgeochem.2020.104774

Bryan, C., Williamson, B., Calus-Moszko, J., van Haute, Q., Guezennec, A.-G., Gaydardzhiev, S., Wavrer, P., & Fraczek, R. (2020). CEReS – Co-processing of Coal Mine & Electronic Wastes: Novel Resources for a Sustainable Future. Hydrometallurgy. doi:10.1016/j.hydromet.2020.105444

Arinanda, M., van Haute, Q., Lambert, F., & Gaydardzhiev, S. (April 2019). Effects of operational parameters on the bio-assisted leaching of metals from pyrolyzed printed circuit boards. Minerals Engineering, 134, 16-22.

Naumov, D., Stamenov, L., Gaydardzhiev, S., & Bouzahzah, H. (2019). Coupling mineralogy with physicochemical parameters in view copper flotation efficiency improvement. Physicochemical Problems of Mineral Processing. doi:10.5277/ppmp18187

Rincon Gamero, J. J., Gaydardzhiev, S., & Stamenov, L. (January 2019). Inversigation on the flotation recovery of copper sulphosalts through an integrated mineralogical approach. Minerals Engineering, 130, 36-47. doi:10.1016/j.mineng.2018.10.006

Rincon Gamero, J. J., Gaydardzhiev, S., & Stamenov, L. (January 2019). Coupling comminution indices and mineralogical features as an approach to a geometallurgical characterization of a copper ore. Minerals Engineering, 130, 57-66. doi:10.1016/j.mineng.2018.10.007

Shengo, M., Gaydardzhiev, S., & Kalenga, P. (10 November 2016). Malachite and heterogenite behavior during the locked-cycle recycling of process water in flotation of copper-cobalt oxide ores. International Journal of Mineral Processing, 157, 152-162. doi:10.1016/j.minpro.2016.10.009

Shengo, M., Gaydardzhiev, S., & Kalenga, P. (July 2015). Effects of process water recycling during flotation of copper and cobalt oxidised ores from Luiswishi deposit in the Democratic Republic of Congo. Desalination and Water Treatment, 55 (7), 1–17. doi:10.1080/19443994.2015.1070753

Lambert, F., Bastin, D., Gaydardzhiev, S., Léonard, G., Lewis, G. (Other coll.), & Bareel, P.-F. (Other coll.). (2015). COPPER LEACHING FROM WASTE ELECTRIC CABLES BY BIOHYDROMETALLURGY. Minerals Engineering. doi:10.1016/j.mineng.2014.12.029

Gaydardzhiev, S., Karthikeyan, J., & Ay, P. (2006). Colour removal from model solutions by coagulation - surface charge and floc characterisation aspects. Environmental Technology, 27, 193-199. doi:10.1080/09593332708618633

Gaydardzhiev, S., Hadjihristova, M., & Tichy, R. (1996). Opportunities for using two low-cost methods for treatment of metal bearing aqueous streams. Minerals Engineering, 9, 947-964.

Scientific conferences in universities or research centers

Gaydardzhiev, S., & Sandvik, K. (1993). Possibilities for rutile extraction from Norwegian eclogite by flotation [Paper presentation]. Annual of the University of Mining and Geology, Sofia, V 39, II, Sofia, Bulgaria.

Scientific congresses and symposiums

Published communications

Panda, S., Akcil, A., Gaydardzhiev, S., van Hullenbusch, E., Goenen, M., & Dembele, S. (2024). Biotechnological Recycling and Recovery of Metals from Waste Printed Circuit Boards and Spent Li-ion Batteries—Selected Results from the ERAMIN EU BaCLEM Project. Materials Proceedings. doi:10.3390/materproc2023015076

Aatach, M., Kadiyski, M., Stoilov, V., Evgeni, V., & Gaydardzhiev, S. (2021). Characterisation and recovery of non-ferrous metals met in a copper-slag processed by flotation. In XXX International Mineral Processing Congress, IMPC 2020 (pp. 2318-2329).

Aatach, M., Milen, K., Stoilov, V., Visariev, E., & Gaydardzhiev, S. (2021). Process Oriented Characterisation of Copper Slag Processed by Flotation in View Metals Recovery. In Proceedings of the 7th International Slag Valorisation Symposium: Shifting Gears to a Climate-neutral & Resource Efficient Society. Leuven, Belgium: KU Leuven, Materials Engineering.

Stefanov, A., Grossman, K., Peuker, U., Stoilov, V., Angelov, A., & Gaydardzhiev, S. (2021). Increased liberation and flotation performance of bulk copper flotation concentrate following its regrinding in a stirred media mill. In Proceedings of the XXX International Mineral Processing Congress (pp. 1411-1422). Johannesburg, South Africa: The Southern African Institute of Mining and Metallurgy.

Aatach, M., Kadiyski, M., Stoilov, V., Vissariev, E., & Gaydardzhiev, S. (2020). Characterisation and recovery of non-ferrous metals met in a copper-slag processed by flotation. In Proceedings of the XXX International Mineral Processing Congress (pp. 2318-2329). Johannesburg, South Africa: The Southern African Institute of Mining and Metallurgy.

Korolev, I., Remes, A., Stoilov, V., Angelov, A., Pukov, T., & Gaydardzhiev, S. (2019). HSC SIM® simulation model of the assarel copper flotation circuit based on process mineralogy and metallurgical testing. In V. Chanturia (Ed.), Proceedings of the 29 International Mineral Processing Congress (pp. 3976-3984).

Nagy, S., Bokanyi, L., Üveges, V., Ambrus, M., Gaydardzhiev, S., & Mucsi, G. (2018). Influence of various mechanical preparation methods of LCD on the leachability of critical elements. In L. Bokanyil (Ed.), Proceedings 4 Waste Recycling XXI International Conference.

Mwase Malumbo, J., Gaydardzhiev, S., Stefanescu, E., & Sehner, E. (2018). Purification of a Norwegian ilmenite ore to produce synthetic rutile. In V. Chanturia (Ed.), Purification of a Norwegian ilmenite ore to produce synthetic rutile (pp. 2626-2633). Moscow, Russia: Ore and Metals Publishing House.

Mwase Malumbo, J., Gaydardzhiev, S., Guillet, A., Stefansecu, E., & Sehner, E. (2018). Investigation on Ilmenite Placer Ore as a Precursor for Synthetic Rutile. In EMPRC 2018 European Mineral Processing and Recycling Congress Proceedings. Clausthal-Zellerfeld, Germany: GDMB.

Ionkov, K., Gaydardzhiev, S., Bastin, D., de Araujo, A. C., & Lacoste, M. (2012). Removal of phosphorous through roasting of oolitic iron ore with alkaline earth additives. In Proceedings of the XXVI International Mineral Processing Congress (pp. 2194-2205).

Kitobo, W., Gaydardzhiev, S., Frenay, J., Bastin, D., & Ilunga, A. (2009). Bacterial leaching of complex sulphides from mine tailings altered by acid drainage. In E. Dominic (Ed.), Bacterial leaching of complex sulphides from mine tailings altered by acid drainage (pp. 365-373).

Gaydardzhiev, S., & Ay, P. (2006). Characterisation of stability behaviour of ultra fine alumina powder in view its colloidal processing by gel-casting. In Onal G. et al. (Ed.), Proceedings of XXIII International Mineral Processing Congress, 3-8 September 2006, Istanbul. Istanbul, Turkey: Istanbul Technical University.

Janeczko, M., Gaydardzhiev, S., & Ay, P. (2006). Removal of selected azo dyes from textile wastewater by chemical coagulation/flocculation: implication of the dye destabilization mechanism. In Fecko P et al. (Ed.), Proceedings of 10-th Conference on Environment and Mineral Processing (pp. 153-159). Ostrava, Czechia: VSB TU Ostrava.

Janeczko, M., Georgiev, P., Nicolova, M., & Gaydardzhiev, S. (2006). Colour removal from wastewater by means of microbial treatment. In P. Fecko (Ed.), 10-th Conference on Environment and Mineral Processing. Ostrava, Czechia: VSB TU Ostrava.

Janezcko, M., & Gaydardzhiev, S. (2006). Removal of dyes from textile wastewater by chemical coagulation. In G. Önal (Ed.), XXIII International Mineral Processing Congress, 3-8 September 2006, Istanbul. Istanbul, Turkey: Promedadvertising Agency.

Strashimirov, S., Dobrev, S., Stamenov, S., Gaydardzhiev, S., & Aksani, B. (2004). Mineralogical characteristics of copper flotation products from Cayeli mine, Turkey and their influence to mineral processing. In Annual of the University of Mining and Geology, Sofia, 47, I, 147-153. Sofia, Bulgaria: MGU.

Gaydardzhiev, S., & Ay, P. (2003). Surface charge studies - an important approach for investigation of color removal from textile wastewaters by chemical coagulation. In Rao & Misra (Eds.), MPT 2004 Conference Proceedings. India: Allied Publishers.

Gaydardzhiev, S. (2000). Thiourea leaching of gold bearing mine wastes from Madjarovo processing plant in SE Bulgaria. In B. Nath (Ed.), Proceedings of NATO ARW “Sustainable Solid Waste Management in the Southern Black Sea Region”, September 1999, Sofia, Bulgaria. Netherlands: Kluwer Academic Publishers.

Gaydardzhiev, S. (1998). Hydrometallurgy of precious metals - effects on the environment. In Gallios and Matis (Ed.), Proceedings of a NATO-ASI, NATO-ASI Series 2, v. 43 (pp. 257-280). Dodrecht, Netherlands: Kluwer Academic Publishers.

Oral communications or posters

Vardanyan, A., Vardanyan, N., & Gaydardzhiev, S. (22 October 2019). Bioleaching of metals from e-waste using immobilized biomass of mesophilic Acidithiobacillus ferrooxidans [Paper presentation]. International Biohydrometallurgical Symposium IBS 2019, Fukuoka, Japan.

Iseli, C., Streicher-Porte, M., Martino, R., Gaydardzhiev, S., & Weh, A. (11 November 2016). Elektrodynamische Fragmentierung von Elektroschrott [Poster presentation]. RecyDepotech 2016, Leoben, Austria.

Köttgen, A., de Haas, B. (Other coll.), Keshav, P. (Other coll.), Mainza, A. (Other coll.), Moys, M. (Other coll.), & Gaydardzhiev, S. (Other coll.). (2010). Improving the grinding performance in ball mills with a conductive and inductive sensor [Poster presentation]. IFPRI 2010 AGM, Liège, Belgium.

Book chapters and contributions to collective works

Nkulu, G., & Gaydardzhiev, S. (2018). Process Oriented Characterization in Bioleaching Co-Cu Minerals. In E. DONATI (Ed.), HEAVY METALS IN THE ENVIRONMENT - Microorganisms and Bioremediation (pp. 223-233). Boca Raton, United States: CRC Press. doi:10.1201/b22013