Substantiation of the technology for reducing dilution by changing the direction of water flow in the dredge section
DOI:
https://doi.org/10.15243/jdmlm.2024.121.6729Keywords:
dredging method, efficiency, environmental impacts, placer deposits, technological solutionsAbstract
The global demand for gold was considered, as well as the ratio of placer gold to ore. It is revealed that there is an increase in the cost of gold mining. This is due to the fact that deposits with simple mining and geological conditions are currently depleted. The dredge method of developing placer deposits is considered. To reduce the cost, the problem of diluting the tailings of ephel dumps was considered. As a solution, a technology for reducing dilution by changing the direction of water flow is proposed. Modeling was carried out and patterns were identified between variables affecting the technological process. This technology can significantly reduce water turbidity, which has a positive effect on the environmental situation in the dredging area. The justification of the technology is given. Also, to justify the effectiveness of the proposed technology, a calculation example is considered. The given example allows us to identify water contamination under various technology options.
References
Anxin, M., Wanglu, P., Qimin, Q. and Huiping, L. 2001. Introduction to Remote Sensing. Higher Education Press.
Aydin, M. and Tunca, E. 2022. Ecological risk assessment of elemental accumulation under the impact of gold mine. International Journal of Environmental Science and Technology 19:7093-7112. https://doi.org/10.1007/s13762-021-03632-4
Brown. L. and Vearncombe. J. 2014. Critical analysis of successful gold exploration methods. Transactions of the Institutions of Mining and Metallurgy. Section B // Applied Earth Science123(1):18-24. https://doi.org/10.1179/1743275814Y.0000000050
Byambaa, B. and Todo, Y. 2011. Technological Impact of Placer Gold Mine on Water Quality: Case of Tuul River Valley in Zaamar Goldfield, Mongolia. World Academy of Science, Engineering and Technology. pp. 51. https://doi.org/10.2495/WRM110261
Drobadenko. V.P., Potapova, T.S. and Kislyakov, V.E. 1992. Hydraulic structures during the development of placer deposits. M.: Nedra. P. 285.
Ershov, V.A. 2010. Purposeful transformation of alluvial deposits in dredge design. Mining Industry Journal 5:70-72.
Fuller, D. 2024. Gold Mining Market Report 2024 (Global Edition). Report ID: CMR184027. Cognitive Market Research.
Garnett, R.H.T. 2015. Graphical representation of production results versus estimates in placer mining. Transactions of the Institutions of Mining and Metallurgy. Section B // Applied Earth Science 124(3):175-190. https://doi.org/10.1179/1743275815Y.0000000015
Gold and Technology, 2021. Mining and geological conditions are becoming more complicated. Accessed on February 28, 2024 from https://zolteh.ru/results/obzor-osnovnykh-sobytiy-v-zolotodobyvayushchey-otrasli-po-itogam-aprelya-iyunya-2021-goda (in Russian).
Gold Mining. 2018. Gold Production in Russia. Accessed on February 28, 2024 from https://zolotodb.ru/article/10922 (in Russian).
Jonson, K. and MacKenzie, A. 2012. Gold dredging in the Klondike and Number 4. Annual Conference. Canadian Society for Civil Engineering 1:211-220.
Kislyakov, V.E. 1988. Calculation of sedimentation tanks for circulating water supply during the development of placers. Krasnoyarsk University. - Krasnoyarsk: Krasnoyarsk University Publishing House. pp. 113-114.
Kislyakov, V.E., Dorozhkin, D.A. and Zubov, P.A. 2022. Method of water supply for dredging works. Patent 2788671 RF. No. 2022119284. Siberian Federal University.
Lewis, T.B., Garcia-Chevesich, P.A., Wildeman, T.R. and Sharp, J.O. 2020. Changes in surface water quality from small-scale gold mining operations in the Surinamean rainforest. Toxicological & Environmental Chemistry 102(7-8):334-355. https://doi.org/10.1080/02772248.2020.1792908
Malca, U.F.G., Dunin-Borkowski, A.S., Bustamante, N.F., Reaño, M.H.M. and Armas, J.M.G. 2023. Alluvial gold mining, conflicts, and state intervention in Peru's southern Amazonia. The Extractive Industries and Society 13:101219. https://doi.org/10.1016/j.exis.2023.101219
Market Research Future. 2023. Global Gold Mining Market Overview. Accessed on February 28, 2024 from https://www.marketresearchfuture.com/reports/gold-mining-market-16112.
Pyatakov, V.G. and Talgamer, B.L. 2019. Prospects for the development of the dredge method for the development of placer deposits. Mining Magazine 12:35-38.
Smith, S. and Friedrichs, C. 2011. Size and setting velocities of cohesive flocs and suspended sediment aggregates in a trailing suction hopper dredge plume. Continental Shelf Research 31(10):550-563. https://doi.org/10.1016/j.csr.2010.04.002
Stanaway, K.J. 2012. Ten placer deposit models from five sedimentary environments. Transactions of the Institutions of Mining and Metallurgy. Section B. Applied Earth Science 121(1):43-51. https://doi.org/10.1179/1743275812Y.0000000020
Vedomosti. 2023. Experts predict a peak in gold production in Russia by 2030. Accessed on February 28, 2024 from https://www.vedomosti.ru/business/articles/2023/11/24/1007446-eksperti-prognoziruyut-na-2030-god-pik-dobichi-zolota-v-rossii (in Russian).
Yanga, L. and Jiuyuna, S. 2011. Study of the integrated enviromental monitoring in mining area based on image analysis. Procedia Engineering 21:267-272. https://doi.org/10.1016/j.proeng.2011.11.2014
Yanin, E.P. 2019. Environmental consequences of alluvial mining. Review. Problems of the Environment and Natural Resources 7:10-54.
Downloads
Submitted
Accepted
Published
How to Cite
Issue
Section
License
Copyright (c) 2024 Journal of Degraded and Mining Lands Management
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Submission of a manuscript implies: that the work described has not been published before (except in the form of an abstract or as part of a published lecture, or thesis) that it is not under consideration for publication elsewhere; that if and when the manuscript is accepted for publication, the authors agree to automatic transfer of the copyright to the publisher.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Scientific Journal by Eko Handayanto is licensed under a Creative Commons Attribution 4.0 International License.
Based on a work at https://ub.ac.id.
Permissions beyond the scope of this license may be available at https://ircmedmind.ub.ac.id/.