Modelling the Water Network of a PGM Mining and Beneficiation Value Chain: A System Dynamics Approach

Mwanza, Joseph; Telukdarie, Arnesh

doi:10.1016/j.procs.2022.01.235

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…Gas-fired power plants, including gas engines, require a cooling system that can be a once-through, recirculating, or dry cooling system. The cooling system requirements depend on four main parameters: withdrawal rate, consumption rate, internal plant usage, and discharged water [42]. The cooling system cost calculation is determined by comparing technology type and parameters [43].…”

Section: Cooling System Costmentioning

confidence: 99%

Civil site selection of the gas engine power plant by value-based decision multicriteria in Kupang, Indonesia

Retnaningtias,

Arifin,

Anugia

2024

Sinergi

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Site selection is one of the main activities in technical system planning to achieve the best design and location of the power plant. Improper site selection methods tend to increase the construction cost, create difficulties in securing primary energy sources, and cause inefficient electricity distribution. The earlier civil site selection process using the scoring method adopted by several utility companies still had some disadvantages that required improvement. This study aimed to propose and test a civil site selection method based on the economic Multi-Criteria Decision-Making (MCDM) that combines Geographical Information System (GIS), Analytical Hierarchy Process (AHP) and Value Based Decision (VBD) simultaneously and based on the collaborative assessment of several engineers. The study investigated Kupang GEPP 40 MW with five alternative locations using the Expert Choice 11 tool to determine the weight of the criteria, alternative locations rating, and the weight of the cost estimate based on GIS data. The analysis revealed that only alternative 1 and alternative 5 are considered feasible. Alternative 5, Panaf, emerges as the most favorable site for Kupang GEPP with a value of 7.087. Further research has been suggested to include more detailed data for site selection.

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Section: Cooling System Costmentioning

confidence: 99%

Civil site selection of the gas engine power plant by value-based decision multicriteria in Kupang, Indonesia

Retnaningtias,

Arifin,

Anugia

2024

Sinergi

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Justification of decisions regarding the water supply to the population in the mining regions in the conditions of local resources insufficiency

Bubnova,

Babii,

Riumina

et al. 2023

Geoteh. meh.

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The issue of the possibility of providing the population with water through the available resources of mine/quarry water formed during the extraction of minerals is considered. The authors show that there is an insufficient level of local water resources in Ukraine. The situation is especially negative in industrialized regions with high water consumption. However, in these regions, the mining industry is widely developed, and their activity is accompanied by a different level of mine workings watering. Today, mine/quarry waters are pumped out and, after sedimentation, discharged into the hydrographic network, polluting it. It is shown that the most rational is to collect, purify and use mine water. The methods of mathematical statistics were used in this work: correlation-regression and dispersion analyses, which were used to analyze data from 10 mines in the city of Kryvyi Rih over a five-year period. The annual level of water inflows, the depth of deposit development, volumes of ore extraction, areas of license areas, geological characteristics of ore deposits, etc. were analyzed. A noticeable correlation was established only between the levels of water inflows and the depth of deposit development and volumes of ore extraction. Therefore, further the multifactorial analysis of these factors was performed. During the preliminary analysis, it was established that there is a powerful dyke between the Frunze and Pokrovska mines, and the mines located on different sides of this dyke often differ in terms of water inflows. Because of this, the northern and southern groups of mines were chosen, the data for which were processed separately. The relationship between water inflows, the depth of deposit development and production volumes was analyzed according to linear and various non-linear dependencies. The exponential dependence of water inflows on the depth of deposit development and the logarithmic dependence on the volumes of extraction show the highest correlation coefficient (0.83–0.86). According to the dependencies given in the article, it is recommended to determine forecasting water inflows for the design of mine water treatment systems for drinking water supply. In the article, a general technological scheme with separate collection, sedimentation and treatment of mine waters is proposed. For the conditions of Kryvyi Rih, this will cover almost half of the population's water consumption. Keywords: water resources, mine waters, discharge, regularities, water supply, treatment.

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Modelling the Water Network of a PGM Mining and Beneficiation Value Chain: A System Dynamics Approach

Cited by 2 publications

References 11 publications

Civil site selection of the gas engine power plant by value-based decision multicriteria in Kupang, Indonesia

Civil site selection of the gas engine power plant by value-based decision multicriteria in Kupang, Indonesia

Justification of decisions regarding the water supply to the population in the mining regions in the conditions of local resources insufficiency

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