Temat: mine drainage - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The effect of electro-activation and eggshell powder on the neutralization of acid mine drainage
Autorzy:: Kastyuchik, A.
Karam, A.
Aïder, M.
Powiązania:: https://bibliotekanauki.pl/articles/91971.pdf
Data publikacji:: 2017
Wydawca:: Główny Instytut Górnictwa
Tematy:: acid mine drainage
electro-activation
neutralization
effectiveness
kwaśny odciek kopalniany
elektroaktywacja
neutralizacja
skuteczność
Opis:: Acid mine drainage (AMD) production by sulfide mine tailing (SMT) is a major environmental preoccupation because it can degrade water surface quality on account of its strong acidity and advanced content of sulfide, iron (Fe) and other metals and metalloids. Acid neutralization and the precipitation of metals present in AMD were carried out by electro-activation with ion-exchange membranes, which is based on the self-generation of necessary conditions for acid neutralization and metal precipitation. The treatment of SMT was carried out by using an electro-activation cell generated alkaline solution in the cathode compartment. After 60 min of electro-activation, a pHcatholyte of 7.9-9.6, depending on the experimental conditions, was obtained. The absence of Fe and other trace metal ions in the catholyte provide evidence that the electro-activation of SMT promotes the precipitation of insoluble trace metals in the cathode compartment. This approach can be applied to real conditions in combination with a pretreatment of SMT neutralization, inwhich biological calcareous amendments are available. Finally, the electro-activation technology of acid mine drainage may be a feasible, cost-effective approach for SMT neutralization because it focuses on sustainable development.
Źródło:: Journal of Sustainable Mining; 2017, 16, 3; 73-82
2300-1364
2300-3960
Pojawia się w:: Journal of Sustainable Mining
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A lab study of mineral scale buildup on lined and traditional PE water pipes for acid mine drainage treatment applications
Autorzy:: Pezzuto, Amanda
Sarver, Emily
Powiązania:: https://bibliotekanauki.pl/articles/1839046.pdf
Data publikacji:: 2020
Wydawca:: Główny Instytut Górnictwa
Tematy:: mineral scale
water conveyance
water pipe
acid mine drainage
kamień mineralny
transport wody
wodociąg
kwaśny drenaż kopalniany
Opis:: Plastic, especially polyethylene (PE), pipe material is increasingly used in mining applications due to its inert nature, flexibility, low density, and low cost. Though resistant to chemical corrosion, it is susceptible to abrasion. To combat this problem, an abrasion-resistant liner is in development. However, it is not yet known how the liner will perform with regards to other common problems that affect pipe systems, such as mineral scale buildup. In mining applications, scale buildup occurs due to the very high contents of suspended and dissolved solids in water or slurry. For example, in systems transporting raw or treated acid mine drainage (AMD), scale can form on pipe surfaces due to sedimentation or the diffusion of particles onto the surface, or precipitation of solids directly onto the surface. In this study, pipe-loop experiments were conducted in the laboratory under three idealized AMD treatment scenarios (i.e., untreated, passively treated and actively treated) to compare mineral scale buildup on traditional versus lined PE pipe materials.
Źródło:: Journal of Sustainable Mining; 2020, 19, 1; 33-45
2300-1364
2300-3960
Pojawia się w:: Journal of Sustainable Mining
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Identification of hazards for water environment in the Upper Silesian Coal Basin caused by the discharge of salt mine water containing particularly harmful substances and radionuclides
Autorzy:: Bondaruk, J.
Janson, E.
Wysocka, M.
Chałupnik, S.
Powiązania:: https://bibliotekanauki.pl/articles/92073.pdf
Data publikacji:: 2015
Wydawca:: Główny Instytut Górnictwa
Tematy:: mine drainage
pressure on water bodies
radionuclides
particularly harmful substances
bioindication
odwadnianie kopalni
presja na zbiorniki wodne
radionuklidy
szczególnie szkodliwe substancje
bioindykacja
Opis:: The Upper Silesian urban-industrial agglomeration is one of the most industrialized areas in Europe. The intense industrialization should be attributed mostly to the presence of coal and other minerals deposits and its extraction. Mining areas of hard coal mines comprise approximately 25% of the total catchment area of watercourses in the area of Upper Silesian Coal Basin, including the river basin of the Upper Oder River and the Little Vistula River. The mining, its scope and depth, duration of mining works, extraction systems being used and the total volume of the drainage fundamentally affect the conditions of groundwater and surface water in the studied area. In this paper, an overall characteristics of the coal mining industry in the area of USCB was made, including the issues of its influence on water environment in the light of the requirements of the Water Framework Directive (WFD) and its guidelines transposed into Polish law. An analysis of the collected data, obtained from collieries, relating to the quantity and quality of water flowing into the workings and discharged to surface watercourses, was performed. An approach to the requirements for wastewater discharge into the environment by these enterprises was presented regarding the physicochemical parameters, possible harmful substances and radionuclides measured in mine waters. The main goal of the paper is to recognize the condition of surface water bodies in the area of Upper Silesian Coal Basin and to make the assessment of the biological condition using Ecological Risk Assessment and bioindication methods.
Źródło:: Journal of Sustainable Mining; 2015, 14, 4; 179-187
2300-1364
2300-3960
Pojawia się w:: Journal of Sustainable Mining
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Suitability assessment of artificial neural network to approximate surface subsidence due to rock mass drainage
Autorzy:: Hejmanowski, R.
Witkowska, H.
Powiązania:: https://bibliotekanauki.pl/articles/92051.pdf
Data publikacji:: 2015
Wydawca:: Główny Instytut Górnictwa
Tematy:: osiadanie
odwodnienie kopalni podziemnej
sztuczna sieć neuronowa
MLP
subsidence
drainage of underground mine
artificial neural networks
Opis:: Based on the previous studies conducted by the authors, a new approach was proposed, namely the tools of artificial intelligence. One of neural networks is a multilayer perceptron network (MLP), which has already found applications in many fields of science. Sequentially, a series of calculations was made for different MLP neural network configuration and the best of them was selected. Mean square error (MSE) and the correlation coefficient R were adopted as the selection criterion for the optimal network. The obtained results were characterized with a considerable dispersion. With an increase in the amount of hidden neurons, the MSE of the network increased while the correlation coefficient R decreased. Similar conclusions were drawn for the network with a small number of hidden neurons. The analysis allowed to select a network composed of 24 neurons as the best one for the issue under question. The obtained final answers of artificial neural network were presented in a histogram as differences between the calculated and expected value.
Źródło:: Journal of Sustainable Mining; 2015, 14, 2; 101-107
2300-1364
2300-3960
Pojawia się w:: Journal of Sustainable Mining
Dostawca treści:: Biblioteka Nauki

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