STATIONARY MATHEMATICAL MODEL OF an AQUIFER AS A BASIC TOOL FOR MANAGEMENT OF GROUNDWATER RESOURCES IN THE CONCENTRATED OPENCAST MINING INDUSTRY IN THE HOLY CROSS MOUNTAINS

2018 ◽  
Vol 471 ◽  
pp. 7-14
Author(s):  
Katarzyna BIAŁECKA ◽  
Jan PRAŻAK

Opencast mining industry very often extracts mineral resources below the groundwater table. Dewatering of excavations affects exploitable groundwater resources. It causes only temporal changes, but if they last several tens of years, local population is forced to modernize existing or even build new groundwater intakes. Mines discharge water into rivers, and local residents have problems with water supply. The municipality has the right not to agree for dewatering, but then it limits the activities of the mining industry. Therefore, it is very important to recognize not only the mining excavations affected by water inflow, but also the scope of hydrodynamic changes and their impact on groundwater intake facilities. The basic computational tool for prediction the effects of extraction of mineral resources below the water table should be a properly constructed mathematical model of a dewatered aquifer. The model should be stationary and should be used to prepare further forecasts for the assessment of damage caused by mining operations, depending on the progress in the exploitation of minerals. This will allow anticipating actions to cover possible losses in water supply to people, agriculture and the local industry. The authors present this problem and the attempts of such operations, based on the examples from the Gałęzice–Bolechowice–Borków and Łagów regions in the Holy Cross Mountains where numerous opencast mines of the Devonian limestones and dolomites are located.

Obiter ◽  
2021 ◽  
Vol 34 (2) ◽  
Author(s):  
PJ Badenhorst

This decision is an appeal from the decision of the South Gauteng High Court in SFF Association v Xstrata (2011 JDR 0407 (GSJ)). The court a quo decided incorrectly that the holder of an old-order mining right, which was converted into a (new) mining right in terms of the Mineral and Petroleum Resources Development Act 28 of 2002 (the “Act”), remains liable upon conversion for the payment of (contractual) royalties in terms of a mineral lease, which was concluded prior to enactment of the Act. The appeal was upheld by the Supreme Court of Appeal (“SCA”) (2012 (5) SA 60 (SCA) par 27). The decision was rendered by Wallis JA with the other judges concurring with his judgment. Prior to the Act mineral-right holders could grant a mining right to a miner against payment of royalties or other forms of consideration. At issue on appeal was whether the obligation to pay royalties in terms of a mineral lease “survives the introduction of the new regime in respect of mining rights brought about by the Act”. As indicated by the SCA, the Act fundamentally changed the legal basis upon which rights to minerals are acquired and exercised. Previously mineral rights were vested in the owner of land or the holder of mineral rights, which rights could be exercised upon acquisition of a statutory authorization to exploit the minerals. In terms of the new regime, common-law mineral rights were destroyed and “all mineral resources vested in the state as the custodian of such resources on behalf of all South Africans”, whereupon the state could confer the right to exploit such resources to applicants. Upon granting a mining right in terms of the Act (statutory) royalties have become payable to the state since 1 March 2010 of the Act and the Mineral and Petroleum Resources Royalty Act 28 of 2008. In order to prevent disruption of the mining industry, provision was made in the Act for the continuation of old-order rights for different transitional periods ranging from one to five years and conversion of such rights during the periods of transition. The transitional arrangements in Schedule II of the Act (“transitional arrangements”) inter alia ensured security of tenure of prospecting rights and mining rights and enabled holders thereof to comply with the Act. In particular, an old-order mining right remained valid for five years “subject to the terms and conditions under which it was granted” (item 7(1) of the transitional arrangements) and could be converted into a new mining right (item 7(2) of the transitional arrangements) if certain requirements were met. The applicant had to have: (a) met the requirements for lodgement of application for conversion; (b) conducted mining operations in respect of the mining right; (c) indicated that he would continue to conduct such mining operations upon conversion of the mining right; (d) had an approved environmental management programme; and (e) paid the prescribed conversion fee (item 7(3) of the transitional arrangements). To recap, the Xstrata decision dealt with an old-order mining right that had been converted into a (new) mining right and the effect of these statutory changes on rights to royalties which accrued to a former holder of mineral rights by virtue of a mineral lease. 


Author(s):  
K. Thambi

SYNOPSIS The mining industry has evolved, such that the means of production that were once in the hands of major players or power houses have become equally accessible to smaller entrants, i.e. junior mining companies and contract miners. Contract mining involves contractual relationships between mine owners or mineral right holders and third parties to conduct mining activities on behalf of the right holders. The current mining income tax legislation has been a considerable obstacle to contract miners. Under its terms, they have been viewed as mining on behalf of third-party mineral rights holders. As such, expenditure incurred in relation to contract mining activities was often disallowed by the South African Revenue Service (SARS). However, the recent judgement of the Supreme Court of Appeal, Benhaus Mining (Pty) Ltd v CSARS 2020 (3) SA 325 (SCA) (Benhaus), rightfully or wrongfully, appears to provide clarity regarding the fate of contract miners' involvement in the mining value chain. The taxpayer, a contract miner, was held to be conducting mining operations within the meaning of S15(a) read with si of the Income Tax Act 58 of 1962 (the Income Tax Act). This paper looks at how contract mining has traversed the mining tax landscape, the implications of the Benhaus judgment, and stresses the necessity for clear policy reform to the mining tax regime and equally to legislation framed to give effect to these policies. Keywords: Contract mining, owner mining, tax, DMRE, mining regime reforms.


2019 ◽  
Vol 12 (5) ◽  
pp. 70-81 ◽  
Author(s):  
I. Y. Novosyolova ◽  
A. A. Avramenko

The subject of the research is conflicts between businesses and local population concerning negative impact of mineral resources extraction on the environment and possibilities of its prevention. The purpose of the work is creating an economic mechanism for  ecological conflicts prevention in the regions where mineral resources are extracted through implementing an economic mathematical model of forming optimal assortment of compensatory measures. Mechanisms of preventing ecological conflicts in mineral resources extracting regions including two ingredients — expert analytical and optimizational — are proposed. While realizing the expert analytical constituent of the mechanism, local population on a par with authorities and representatives of the extracting enterprise are involved in prioritizing in the course of reducing man-impact on the environment and in the process of compensatory measures portfolio forming. Optimizational constituent of the mechanism for ecological conflicts prevention demands forming a model for optimal compensatory measures choice. Scientific novelty and significance of the work are presented by a rate scale for expertise of possible negative ecological consequences of creating and operating an extracting enterprise from the point of view of population groups. As the research result an algorithm of expert assessment processing enabling to determine the priority ranking for reducing man-impact on the environment and tension reduction between the extracting enterprise and local population is formed. An optimizational model enabling to determine optimal set of compensatory measures taking into account the interests of both extracting enterprises and the most conflict groups of local population is proposed.


2021 ◽  
Vol 3 (1) ◽  
pp. 45-58
Author(s):  
Alim Perdana ◽  
Nur Budi Mulyono

Kraljic matrix (or Kraljic model) is a method used to segment the purchases or suppliers of a company by dividing them into four quadrants, based on the complexity (or risk) of the supply market (such as monopoly situations, barriers to entry, technological innovation) and the importance of the purchases or suppliers (determined by the impact that they have on the profitability of the company). This quandrant allows the company to define the optimal purchasing strategies for each of the four types of purchases or suppliers. In coal mining company, hundred thousand goods, part number or SKUs are purchased by corporate in fulfilling its mining operations requirement. However, the commodities generally purchased by open pit coal mining company are classified into 6 (six) classes which are fuel, maintenance of mobile equipment, blasting material, tyre, lubricants, and others. With the complexity of dealing with suppliers, it is mandatory for developing purchasing strategies as part of managing of supply chain. Mining operations and profitability of coal mining company shall depend on the total cost of ownership in purchasing the abovementioned commodities. This Kraljic Portfolio Model (1983) will assist coal mining company in applying purchasing strategies based on the class or quadrant which has been developed. Objective of this research is to develop purchasing strategies by empirically quantifying using data from a comprehensive survey among purchasing professionals in coal mining industry. Kraljic Portfolio Matrix is developed with 2 (two) stages of questioner. First questioner is to assess the importance level of each attribute in the dimension of purchasing activity by using Analytical Hierarchy Process. Second questioner is to assess every commodity’s scoring against each supply attribute. Subsequently, the matrix is developed by using SPSS (Statistical Product and Service Solutions) software. This research successfully classifies purchasing commodity in the appropriate quadrant of Kraljic Portfolio Matrix. By classifying the commodities purchased by coal mining company in the right quadrant of Kraljic Portfolio Matrix, the company will be able to implement the right purchasing strategies which will be different in one quadrant and another.


2012 ◽  
Vol 52 (2) ◽  
pp. 669
Author(s):  
Jeremy Samuel ◽  
Katherine Teh-White

Activist groups and others opposed to drilling operations have used social media with great effect to influence community perceptions of CSG and other mining operations. When faced with the reality of the level of community outrage apparent in social media, many industry executives throw their hands up in despair and conclude they cannot influence the discussion. Others decide that the best approach is to run broad-based advertising and PR campaigns that present only the industry's case–after all, this approach worked well for the mining industry in opposing the mining tax. Neither of these approaches actually addresses or mitigates the outrage that exists in the community or provides a hope of resolving the underlying issues. This extended abstract presents a staged approach to social media engagement using land access as an exemplar, which builds on more than a decade of risk communications experience and applies this to creating engagement and influence in the social media sphere. The approach has five stages. These stages involve: Listening–to key issues and influencers; Understanding–the expectations and outrage factors that emerge; Following–tracking how the conversations are evolving; Engaging–starting to participate in the conversations and only then; Influencing–having built a presence and a community you may start to shape the conversations. You may not always like what you read and hear in social media, but if you participate in a considered way you will get an accurate picture of community expectations and earn the right to help shape the conversations.


2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Wiktoria SOBCZYK ◽  
Koji Cristobal Ishimi PERNY ◽  
Eugeniusz SOBCZYK

The aim of this article is to analyse the real risk that mining operations pose to the environment, including all the main concernsrelated to the project's planned operations and their environmental impacts. In order to carry out an in-depth analysis of a practicalcase involving the real process of mineral extraction, we use the Analytic Hierarchy Process (AHP) and Leopold matrix as a methodof measurement. The subject of the investigation is the extraction of lithium from natural brine located in South America's so-calledLithium Triangle, in the geographical limits of Argentina, Bolivia and Chile, where more than 80% of the world's lithium reserves arelocated. The case study showed that the elements of the environment most exposed to mining activities are the biosphere, lithosphereand hydrosphere. The vast areas of the mining company are covered by sedimentary ponds with brine. Pumping the brine to the surface results in a loss of groundwater resources and, consequently, changes the water cycle in the catchment area. The habitats of aquaticand terrestrial fauna and flora are significantly changed or irretrievably damaged.


2019 ◽  
Vol 109 ◽  
pp. 00089
Author(s):  
Serhii Skipochka

The goal of the work was to develop a concept of intensification of mining operations, taking into account geomechanical processes occurring in the “rock massif – mining workings – support and protective structures” system. The article is the result of theoretical and experimental research materials analysis and synthesis, carried out for the conditions of coal, non-metallic and iron-ore mines. Positive and negative geomechanical processes and phenomena, occurring during intensification of mining operations, have been substantiated. A set of technical and technological solutions to eliminate the negative phenomena associated with high mining rates development of mineral resources has been proposed. Recommendations, presented in this article, will significantly reduce the conditionally fixed costs of mining production and improve miner’s safety.


2019 ◽  
Vol 105 ◽  
pp. 02006
Author(s):  
Tatiana Gvozdkova ◽  
Pawel Stefanek ◽  
Michaela Koščová

Ecological problems in the open pit mining of coal deposits are extremely hard, since mining operations are accompanied by disturbed land to a large depth with significant changes in the landscape, hydrometeorological conditions, mixing of rocks and removal of infertile or even harmful rocks with radioactive isotopes to the surface. Disturbed lands are unusable if they are not repaired. All man-made disturbances of the environment caused by open pit mining are divided into landscape (changes in terrain, vegetation and soil cover) and environmental (violation of living conditions within the allotment and adjacent lands: changes in water regime, pollution of the soil, air and water basins) onesOne of the most important areas in the field of environmental protection is the reclamation (restoration) of the earth’s surface. In accordance with the requirements of the protection of the subsoil, enterprises engaged in the development of mineral deposits are obliged at their own expense to bring disturbed lands into a state suitable form for their further use. Reclamation of ought to be carried out during open pit mining operations and must be completed after mining of mineral resources in the terms established by the authorities that provide land for use.


Author(s):  
Filip Kotal ◽  
František Kožíšek ◽  
Hana Jeligová ◽  
Adam Vavrouš ◽  
Daniel Gari Wayessa ◽  
...  

The modern, risk-based approach requires that only those pollutants which are likely to be present in a given water supply should be monitored in drinking water. From this perspective, defining...


2021 ◽  
Vol 13 (12) ◽  
pp. 6971
Author(s):  
Mikhail Zarubin ◽  
Larissa Statsenko ◽  
Pavel Spiridonov ◽  
Venera Zarubina ◽  
Noune Melkoumian ◽  
...  

This research article presents a software module for the environmental impact assessment (EIA) of open pit mines. The EIA software module has been developed based on the comprehensive examination of both country-specific (namely, Kazakhstan) and current international regulatory frameworks, legislation and EIA methodologies. EIA frameworks and methods have been critically evaluated, and mathematical models have been developed and implemented in the GIS software module ‘3D Quarry’. The proposed methodology and software module allows for optimised EIA calculations of open pit mines, aiming to minimise the negative impacts on the environment. The study presents an original methodology laid out as a basis for a software module for environmental impact assessment on atmosphere, water basins, soil and subsoil, tailored to the context of mining operations in Kazakhstan. The proposed software module offers an alternative to commercial off-the-shelf software packages currently used in the mining industry and is suitable for small mining operators in post-Soviet countries. It is anticipated that applications of the proposed software module will enable the transition to sustainable development in the Kazakh mining industry.


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