Wyniki wyszukiwania - BazTech

1

Cząstki typu Janus : otrzymywanie, właściwości i zastosowanie

Gołąbiewska Anna, Głowienke Hanna, Sowik Jakub, Malankowska Anna

Wiadomości Chemiczne

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2024

|

[Z] 78, 3-4

279--302

EN

Janus particles are a special class of materials whose uniqueness is based primarily on the lack of central symmetry of the particles, which causes their surfaces to have at least two different physical or chemical properties. Due to their asymmetric structure, Janus-type nanoparticles are used in the fields of chemistry, physics, engineering, and medicine. The work presents three groups of Janus particles: semiconductor-semiconductor, semiconductor-metal and metal-metal, and their methods of preparation and their applications.

2

Geochemistry features of mercury in oils from the deposits of the dnipro-donetsk depth

Ishkov Valerii, Kozii Yevhen

Mining Machines

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2024

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vol. 42, iss. 1

12--29

EN

The purpose of the article is to establish the geochemical characteristics of mercury in the oils of the active deposits of the Dnipro-Donetsk depth and to create their classification according to the content of this metal. Based on the research of typomorphic features of the oils of theconsidered deposits, it was established that it is the low-molecular sulfur-containing heteroatomic components of the oil system that are the main carriers and concentrators of mercury. Based on the results of the cluster analysis, a dendrogram of the results of clustering by theweighted centroid method of the studied deposits by the mercury content in the oils was constructed. Taking into account the statistically significant character of mercury connections, it is proposed to divide all geochemical and geological-technological parameters into a group genetically and/or paragenetically related to the accumulation of mercury in oil and a group negatively related to an increase in mercury content in oil. This is what made it possible to develop theclassification of oil fields of the Dnipro-Donetsk depth according to mercury content.

3

Ocena ryzyka zdrowotnego związanego z narażeniem na metale obecne w osadach dennych

Tytła Malwina

Laboratorium - Przegląd Ogólnopolski

|

2024

|

nr 1

41--46

PL

Osady denne to integralny element wszystkich ekosystemów wodnych. Stanowią one miejsce, w którym kumulowane są różne zanieczyszczenia, w tym także te potencjalnie toksyczne, jak metale. Zanieczyszczenia te mogą być unieruchamiane w osadach dennych jezior, cieków czy też zbiorników wodnych na długi czas. Stan ten może przyczyniać się do negatywnego oddziaływania tych pierwiastków zarówno w wymiarze ekologicznym, jak i zdrowotnym. Dlatego też, poza systematycznym monitorowaniem zawartości metali w osadach dennych, konieczne jest również przeprowadzanie oceny ryzyka zdrowotnego, związanego z obecnością tych pierwiastków.

EN

Bottom sediments are an integral element of all aquatic ecosystems. They are places where various pollutants, including potentially toxic ones, such as metals, are accumulated. These pollutants can be immobilised in the bottom sediments of lakes, streams, or water reservoirs for a long time. This condition may contribute to the negative impact of these elements, both in ecological and health aspect. Therefore, in addition to systematic monitoring of metal content in bottom sediments, it is also necessary to assess health risks associated with the presence of these elements.

4

The Influence of Metallurgical Industry Emissions on the Development of Selected Components of Atmospheric Deposition in the Košice Area (Slovakia)

Hančuľák Jozef, Cervenakova Petra, Sestinova Olga, Findorakova Lenka

Inżynieria Mineralna

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2024

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Vol. 1, no. 1

405--415

EN

The aim of this paper is to assess the impact of emissions and their decrease on the level of environmental burden through the study of selected atmospheric deposition parameters in the area with the dominant source of emissions from the iron and steel production complex. Total atmospheric deposition (AD), i.e., j. both wet and dry, was sampled from eleven sampling points at a distance of 3 to 16 kilometers from the ironworks complex. AD fluxes of selected elements (Fe, Al, Mn, Zn, Pb, Cu, Cr, Cd, As) and dust particles (PM) were evaluated in relation to the amount of emissions from the results of long-term AD monitoring (2009 – 2022). The analysis shows the dominant influence of emissions from the metallurgical industry on the deposition fluxes of most of the monitored parameters and, thus, on the environmental burden of the area. The emissions have a decisive impact on the AD of manganese, iron, chromium, particulate matter, zinc, and aluminum, but also, to a lesser extent, on the AD of the other monitored elements. Correlation analysis confirmed a statistically significant dependence between the amount of emissions and the mass fluxes of AD for iron, zinc, manganese, and chromium for most of the sampling sites. The potential of immission load of the urban environment of Košice by emissions from the metallurgical industry is significantly higher in the winter due to local specific meteorological conditions. The more than sevenfold decrease in emissions significantly affected the AD of most of the monitored parameters, but their decrease was not so significant except for the AD of lead. The average AD of the elements strongly associated with ironworks emission sources, namely iron, manganese, chromium, and zinc, decreased approximately twofold. The amount of emissions is only one of several factors that affect the quantity of fluxes of the monitored AD parameters. In addition to seasonal factors, local meteorological, climatic, orographic, and other local conditions, and specifics also play an essential role.

5

The influence of morphometry on the spatial variability of bottom sediments pollution in a shallow lowland dam reservoir

Kostecki Maciej

Zeszyty Naukowe SGSP / Szkoła Główna Służby Pożarniczej

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2023

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Nr 88 (tom 1)

45--60

EN

The relationship between morphometric conditions and the state of contamination of bottom sediments was investigated in terms of protection and restoration of limnic ecosystems. The study showed a high similarity of spatial variability of various types of pollutants including metals and polycyclic aromatic hydrocarbons, and in the case of phosphorus its speciation forms in the bottom sediments of the studied ecosystem. This indicates a common transport mechanism for these pollutants, in which suspended solids play a decisive role. The linear velocity of water flow is a determining factor in the transport of suspended solids shaping the distribution and degree of contamination of bottom sediments within a shallow, lowland dam reservoir. Morphometric conditions affect the spatial variability of the linear velocity of water flow, which is reflected in the spatial variability of contaminant concentrations in bottom sediments along the direction of water flow. The highest concentrations of pollutants, including organic matter, phosphorus, metals and PAHs are deposited in the pelagic zone of the reservoir. Knowledge of hydrological conditions and understanding of the physical properties of allochthonous suspensions provides an opportunity to control the process of sedimentation of suspensions through appropriate shaping of the bottom and surface of transverse profiles, determining the linear velocity of water flow.

PL

Artykuł koncentruje się na korelacjach między warunkami morfometrycznymi i hydrodynamicznymi a zanieczyszczeniem osadów dennych z punktu widzenia ochrony i rekultywacji ekosystemów limnicznych. Przeprowadzone badania wykazały duże podobieństwo w przestrzennej zmienności różnych zanieczyszczeń, w tym specjajnych form fosforu, metali i wielopierścieniowych węglowodorów aromatycznych, w osadach dennych badanego ekosystemu. Badania wskazują na wspólny dla tych zanieczyszczeń mechanizm transportu, w którym kluczową rolę odgrywają zawiesiny. Prędkość liniowa przepływu wody jest czynnikiem decydującym o transporcie zawiesin. Kształtuje ona rozkład i poziom zanieczyszczeń w osadach dennych w płytkim nizinnym zbiorniku zaporowym. Warunki morfometryczne wpływają na przestrzenną zmienność prędkości liniowej przepływu wody, co znajduje odzwierciedlenie w alokacji zanieczyszczeń w ekosystemie w kierunku przepływu wody. Najwyższe stężenia zanieczyszczeń (w tym materii organicznej, fosforu, metali i WWA) odkładają się w strefie pelagicznej zbiornika. Zrozumienie warunków hydrodynamicznych i znajomość właściwości fizycznych wykazywanych przez zawiesiny allochtoniczne stwarzają możliwość sterowania procesem sedymentacji zawiesiny poprzez odpowiednie ukształtowanie dna i profili poprzecznych określających prędkość liniową przepływu wody.

6

Innovative hydrometallurgy for galvanic sludge sustainable recovery

Brožová Silvie, Drápala Jaromír, Brož Jiří, Macháčková Adéla

System Safety : Human - Technical Facility - Environment

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2023

|

Vol. 5, iss. 1

46--56

EN

The manuscript explores the feasibility of recovering zinc and iron from waste galvanic sludge generated during galvanic plating processes. Galvanic sludge, characterized by elevated concentrations of heavy metals, represents a suitable candidate for hydrometallurgical recycling. The primary objective of the experimental and practical phases was to extract zinc and iron through the leaching of galvanic sludge. Leaching procedures were conducted using sulfuric acid at varying temperatures and time durations, augmented by the introduction of oxidizing agents such as hydrogen peroxide or ozone. Subsequent separation of the leach and filtrate was achieved through filtration. The leachate underwent additional processing involving the precipitation of iron and other metals, employing diverse agents. Following further filtration, electrolysis was employed to attain pure zinc on the cathode, utilizing an electrical voltage of approximately 3 V. Comprehensive chemical analyses were conducted on all intermediate products, including the leachate, leach liquor, filtrate, solid precipitate, and the separated metal on the cathode. The outcomes of these analyses are meticulously presented in tables and graphs.

7

Analysis of high temperature oxidation characteristic of chrome-plated, nickel-plated and non-plated mild steels

Alemayehu Atalay, Beyene Eaba, Batu Temesgen, Tirfe Dagim

Advances in Mechanical and Materials Engineering

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2023

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Vol. 40, nr 1

215--228

EN

Metals are the best engineering materials owing to their superior conductivity, mechanical properties, and formability. However, they can be highly affected by environmental elements like oxygen, chlorine, etc. This reaction of metals with the environmental elements will indeed alter their electrical, chemical, and mechanical properties. To protect against corrosion, various protection methods such as electroplating have been established. The presence of anodic or cathodic films on the substrate surface protects steel from corrosion damage at ambient atmospheric temperature. This work focuses on the effect of temperature on the oxidative (corrosion) rate of non-plated, nickel-plated, and chrome-plated ASTM A283GC mild steel samples. A temperature range of 200–800 °C and a total heating time of 120 min were considered in this experiment. A temperature-regulated muffle furnace with a maximum heating capacity of 1000 °C has been used. Weight changes were determined every 30 minutes of heating using a digital weight balance with a precision of 0.001 g. The obtained experimental results of non-plated, nickel-plated, and chrome-plated mild steel samples were analyzed and compared with each other. The effect of oxidation on the surface hardness has also been studied with the help of a Vickers hardness testing machine. Changes in the physical nature of the samples caused by oxidation were also observed and pictured using a camera.

PL

Metale są najlepszymi materiałami konstrukcyjnymi ze względu na ich doskonałą przewodność właściwą, właściwości mechaniczne i odkształcalność. Jednakże wpływ czynników środowiskowych takich jak tlen i chlor może zmienić ich właściwości elektryczne, chemiczne i mechaniczne. W celu ochrony metali przed korozją opracowano różne metody ochrony, m.in. w procesie galwanizacji. Obecność filmów anodowych lub katodowych na powierzchni podłoża chroni stal przed uszkodzeniami korozyjnymi w temperaturze otoczenia. Niniejszy artykuł skupia się na wpływie temperatury na szybkość utleniania (korozji) próbek stali miękkiej nieplaterowanej, platerowanej niklem i chromowanej. W badaniach uwzględniono zakres temperatury 200-800°C i całkowity czas ogrzewania 120 minut. Zastosowano piec muflowy z regulowaną temperaturą o maksymalnej wydajności grzewczej 1000°C. Zmiany masy mierzono co 30 minut w trakcie nagrzewania przy użyciu cyfrowej wagi z dokładnością do 0,001 g. Uzyskane wyniki eksperymentalne próbek ze stali miękkiej ASTM A283GC nie platerowanej, platerowanej niklem i chromowanej poddano analizie i porównano ze sobą. Badano także wpływ utleniania na twardość powierzchni za pomocą twardościomierza Vickersa. Zaobserwowane zmiany w zachowaniu próbek spowodowane utlenianiem zostały sfotografowane.

8

Morphology of household waste on the example of Sri Lanka and Poland — case study

Perera Egodage Chavin Janitha, Chyc Marek

Science, Technology and Innovation

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2022

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Vol. 15, no. 1-2

17--21

EN

Household waste is a global problem that many countries cannot cope with and deal with difficulty. In many regions of the world, a dynamic increase in the amount of waste generated is observed, which causes significant environmental pollution and excessive use of non-renewable resources. In the case of household waste, important indicators are not only its quantity per person but also its morphology. This study compares the amount of waste generated and its morphology by a household in Sri Lanka (Colombo) and Poland (Tarnów). The presented data comes from 2022, during a time of economic crisis caused initially by the COVID-19 pandemic and then due to the war between Russia and Ukraine. Currently, Sri Lanka is going through one of the greatest economic crises in its history. Poland is currently experiencing high inflation and reduced demand for many consumer goods due to continuous price increases. These events significantly affect the demand for various types of consumer goods and, paradoxically, this may reduce the amount of waste generated. It is important to identify and implement new strategies to recycle or optimize the usage of waste and develop value added products that would, in turn, have a positive impact on the domestic waste awareness. The results of the conducted research indicate a significant share of biodegradable waste in the stream of generated waste, especially in Sri Lanka. The vast majority of generated waste can be recycled, but sorting is required. Comparing the data obtained from this case study, 71% of food waste is generated in Sri Lanka, whereas 22.1% is generated in Poland. This indicates that Poland produces a significant amount of processed food. Moreover, the recorded plastic waste produced by Polish families is twice that of Sri Lanka. Furthermore, both countries indicate a positive trend to generate more waste in the future despite economic challenges faced locally as well as globally. Therefore, it is vital to understand the amount and morphology of waste as well as to implement more efficient and economical strategies to eliminate negative impacts.

9

INNUPS. Technologia usuwania i odzysku metali oraz boru ze ścieków z instalacji mokrego odsiarczania spalin

Nowa Energia

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2022

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nr 3

12--15

PL

PGE Energia Ciepła zmodernizowała w Elektrociepłowni Gdyńskiej układ odsiarczania ścieków z mokrego odsiarczania spalin, rozbudowując go o innowacyjne rozwiązanie, jakim jest instalacja wykonana w technologii INNUPS. Wdrożenie to jest odpowiedzią na potrzebę poszukiwania nowych, niezawodnych i dużo sprawniejszych metod oczyszczania ścieków pochodzących z mokrego odsiarczania spalin.

10

The use of microalgal sourced biodiesel to help underground mines transition to battery electric vehicles

Laamanen Corey A., Moreau Kyle, Desjardins Sabrina M., McLean Shannon H., Scott John A.

Journal of Sustainable Mining

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2022

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Vol. 21, iss. 1

2--14

EN

The use of fossil fuel sourced diesel underground has various associated health and environmental hazards, and additional energy demand and costs associated with necessary ventilation. One way to reduce these impacts is by utilizing a biodiesel-blend, which generates lower levels of harmful emissions from underground equipment and can be produced regionally, reducing the impact of transportation. Furthermore, this would help allow use of existing machinery during transition towards more widespread electrification underground. Therefore, the concept of an integrated supply and use chain within the mining industry is examined based on biodiesel from acidophilic photosynthetic microalgae cultivated using CO 2 in smelter off-gas. A life cycle assessment (LCA) was conducted to compare the environmental impacts of production, transportation, and end-use of fossil fuel sourced diesel to biodiesel-blended fuel across four underground metal ore mine sites (Canada, Poland, Zambia, and Australia). The outcomes from assessing four key environmental impact potentials (global warming, eutrophication, acidification and human toxicity) demonstrate the advantages of using biodiesel-blends. The integration of biodiesel resulted in changes of -22.5 to +22.8% (global warming), -6.1 to +27.3% (eutrophication), -18.9 to +26.3% (acidification), and -21.0 to -3.6% (human toxicity). The results showed reduction across all potentials for two mines and reduction in human toxicity potential for all sites.

11

Badania nanocząstek metali/tlenków metali i ich przemian w roślinach przy wykorzystaniu technik spektrometrii mas

Wojcieszek Justyna

Analityka : nauka i praktyka

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2022

|

nr 4

26--31

PL

Opracowana metodologia analityczna, oparta na różnych technikach spektrometrii mas, dała możliwość śledzenia losów nanocząstek NPs od momentu rozpoczęcia hodowli po ich akumulację i transport w obrębie analizowanej rośliny.

12

Essential and non-mutagenic elements in raw ewe milk

Toman Robert, Pšenková Martina, Imrich Ivan, Hluchý Svätoslav, Almášiová Simona

Science, Technology and Innovation

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2021

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Vol. 14, no. 3-4

34--44

EN

The monitoring of metals and other chemical elements in the basic sources of diet, mainly for children, is very important for preventing health issues. The aim of this work was to determine the concentration of selected essential (Ca, K, Mg, Mo, Na, Zn) and non-mutagenic elements (Ag, Al, Ba, Li, Sb, Sr) in ewe milk from the Orava region in northern Slovakia. Twenty milk samples were analysed in June and August using an inductively-coupled plasma optical emission spectrometry. The differences in elements concentration between the seasonal periods were not significant (p < 0.05), except for lithium (p < 0.05). The essential elements concentration was within the recommended levels, while the non-mutagenic and potentially toxic metals consist was under the permissible limits. However, there were found very strong and significant relationships between the elements which may suggest the synergistic / additive or antagonistic effects of some elements.

13

Analiza metali w próbkach piw domowych i komercyjnych przy wykorzystaniu techniki ICP-OES

Karaś Katarzyna, Czarnecki Mateusz, Kurzyca Iwona, Frankowski Marcin, Zioła-Frankowska Anetta

Laboratorium - Przegląd Ogólnopolski

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2021

|

nr specjalny

52--58

PL

Celem pracy było określenie zależności pomiędzy składem, stylem piwa a zawartością oznaczanych pierwiastków. Oznaczone zawartości zostały wykorzystane do porównania ich z dopuszczalnymi, bezpiecznymi dawkami dziennego spożycia.

14

Synthesis of bacteriostatic polylactide by using zirconium (IV) and zinc (II) chelate complexes with amino-acids based ligands

Rychter Piotr, Barczyńska-Felusiak Renata, Lewicka Kamila, Pastusiak Małgorzata, Kaczmarczyk Bożena, Sobota Michał, Wanic Andrzej, Orchel Arkadiusz, Kaps Anna, Jaworska-Kik Marzena, Dobrzyński Piotr

Engineering of Biomaterials

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2021

|

Vol. 24, no. 163

18

15

Hybrydowe nanokompozyty typu metal-białko serwatkowe

Rodzik Agnieszka, Pomastowski Paweł, Railean-Plugaru Viorica, Buszewski Bogusław

Analityka : nauka i praktyka

|

2021

|

nr 2

4--12

PL

Obok całej gamy związków nieorganicznych i organicznych ważną i interesującą grupę związków biologicznie aktywnych stanowią białka serwatkowe. Mają one zdolność do oddziaływania z jonami metali. Aby zrozumieć zjawiska oddziaływań metal-białko, ważne jest opracowanie i wdrożenie nowych, innowacyjnych metod analitycznych, połączonych z badaniami zmian aktywności biologicznej oraz analizą wpływu tych oddziaływań.

16

Zastosowanie Calamagrostis epigejos w celu rekultywacji terenów zanieczyszczonych metalami

Najduch Laura, Orzechowska Oliwia, Spilkowski Mateusz

Analit

|

2021

|

Nr 10

25--33

PL

W niniejszej pracy przedstawiono przebieg badań nad próbkami pobranymi z jednego z zakładów zajmujących się składowaniem odpadów przemysłowych. Przedmiotem badań był rosnący na pryzmie piasku formierskiego, Trzcinnik piaskowy (łac. Calamagrostis epigejos). Dodatkowo do badań pobrano próbki piasku formierskiego z tej samej pryzmy, na różnych wysokościach i tej samej głębokości, w celu pozyskania informacji na temat rozkładu stężenia oznaczanych pierwiastków. Celem sprawdzenia użyteczności trzcinnika piaskowego do rekultywacji terenów składowania odpadów, oznaczono zawartość metali, tj. miedzi, żelaza i magnezu metodą atomowej spektrometrii absorpcyjnej - ASA w tkankach tej rośliny.

EN

The paper presents a study of the samples collected from one of the industrial waste disposal facilities. Calamagrostis epigejos growing on a mouldering sand pile was the subject of this study. Additionally, moulding sand samples were taken from the same pile, at different heights and the same depth, in order to obtain information about distribution of the determined elements. In order to check usefulness of reed canary grass for the reclamation of waste disposal areas, the content of metals, i. e. copper, iron and magnesium, was determined by means of atomic absorption spectrometry - ASA.

17

The effects of Nb addition on the microstructure and mechanical properties of melt spun Al-7075 alloy

Kilicaslan Muhammed Fatih, Elburni Saad Ibrahim, Akgul Bekir

Advances in Materials Science

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2021

|

Vol. 21, nr 2(68)

16--25

EN

The mechanical properties of the Al-7075 material, which is used in important areas such as automotive, aviation and defense industry, are still being studied by researchers. In this study, the effects of different proportions of Nb additives on the microstructure and mechanical properties of the rapidly solidified Al-7075 alloy was investigated. Rapid solidification processes were carried out with a single roller melt spinner at a disk surface speed of 25 m / s. Microstructure characterization was performed by using a scanning electron microscopy (SEM) and X-ray diffraction. According to the results, the Nb additive significantly increased the micro hardness of the Al-7075 alloy. The microhardness of the sample added with 0.5% by weight of Nb is 0.9 GPa. This value is 3 times higher than the sample without Nb added. The Nb contribution has led to modification of the dimensions and shapes of both α-Al and intermetallic phases. Nb addition reduced the average grain size from 9.1 μm to 2.46 μm.

18

Analysis of the mechanical properties of polymer composites for the production of machine parts used as substitutes for elements obtained from metals

Markowska Olimpia, Markowski Tadeusz, Sobczyk Magdalena

Polimery

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2020

|

T. 65, nr 4

311--314

EN

The mechanical properties of composites based on polyamide 6 (PA6), polyamide 66 (PA66) and polyphthalamide (PPA) reinforced with fiberglass were tested. Flexural strength, Shore and Rockwell hardness and also notched and without a notch impact strength according to Charpy were determined. The best results of the strength tests were observed for the PA66 composite with 35 wt % fiberglass. The analyzed composite materials can be successfully used in the production of substitutes for machine elements made of metal.

PL

Zbadano właściwości mechaniczne kompozytów na bazie poliamidu 6 (PA6), poliamidu 66 (PA66) oraz poliftalamidu (PPA) wzmocnionych włóknem szklanym. Oznaczono wytrzymałość na zginanie, udarność wg Charpy’ego z karbem i bez karbu, twardość Shore’a oraz Rockwella. Najlepsze właściwości wytrzymałościowe wykazywał kompozyt PA66 z udziałem 35% mas. włókna. Oceniane materiały kompozytowe z powodzeniem mogą być stosowane do produkcji zamienników elementów maszyn wykonanych z metali.

19

Zawartość nieorganicznych jonów oraz metali w wybranych wodach powierzchniowych oraz podziemnych na terenie województwa śląskiego

Michalski Rajmund, Kernert Joanna, Pecyna-Utylska Paulina

Laboratorium - Przegląd Ogólnopolski

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2020

|

nr 1

52--59

PL

Na terenie województwo śląskiego znajduje się wiele zbiorników wodnych, które pełnią różne funkcje, a jakość zawartych w nich wód ma wpływ m.in. na zdrowie ich użytkowników. Ponadto znajdują się tam ujęcia wód powierzchniowych oraz studnie głębinowe, które są wykorzystywane przez Górnośląskie Przedsiębiorstwo Wodociągów w Katowicach na potrzeby mieszkańców województwa śląskiego. W pracy przedstawiono wyniki rocznych badań pH i przewodnictwa oraz zawartości nieorganicznych jonów (F-, Cl-, NO2-, NO3-, PO4 3-, SO4 2-, Na+, K+, NH4+, Ca2+ i Mg2+), a także metali (Cr, Zn, Co, Mn, Cu, Ni, Pb, As, Bo, Sb, Sr, V) w trzech zbiornikach wód powierzchniowych oraz wodach podziemnych z czterech studni głębinowych zlokalizowanych na terenie Górnego Śląska. Określono ich skład jonowy oraz zawartość metali, a także zmienność sezonową. Zakres tych badań jest znacznie szerszy niż analizy zazwyczaj wykonywane dla tych rodzajów wód.

EN

In the Silesian Voivodeship, there are many water reservoirs, which perform various functions, and the quality of their waters influences, among others, the health of their users. In addition, surface water intakes and deep wells which are used by Upper Silesian Waterworks Plant in Katowice for the needs of the inhabitants of the Sileslon Voivodeship are located there. The paper presents the results of the annual tests of pH, conductivity and the content of inorganic ions (F-, CI-, NO2-, NO3-, PO4 3-, SO4 2-, Na+, K+, NH4+, Ca2+ i Mg2+), and metals (Cr, Zn, Co, Mn, Cu, Ni, Pb, As, Bo, Sb, Sr, V) in three surface water reservoirs and groundwaters from four deep wells located in Upper Silesia. Their ionic composition and metal content as well as seasonal variability were determined. The scope of these tests is much wider than the usual analyses for these types of water.

20

Life cycle assessment to demonstrate how automation improves the environmental performance of an underground mining operation

Moreau Kyle, Laamanen Corey A., Bose Ron, Shang Helen, Scott John A.

Journal of Sustainable Mining

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2020

|

Vol. 19, iss. 3

182--194

EN

The worldwide move to introduce more automation into underground metal ore mining is currently aimed at improving both operational productivity and safety. A comparative life cycle assessment (LCA) was used as a novel approach to determine the beneficial impacts automation can also have on environmental performance, using data collected on mine site productivity and energy consumption. The LCA looked at four impact categories: global warming potential, acidification, eutrophication, and human toxicity. When comparing automated equipment to their traditional manual counterpart, all four impact categories experienced a reduction with automation and a subsequent improvement in sustainability performance. Global warming potential, for example, decreased by 18.3% over the mine life period, or 3.7 kg of carbon dioxide equivalent (CO2 eq.) per tonne of ore extracted. Environmental impact reductions were due primarily to lower diesel fuel consumption in the loading and haulage processes as well as a 27% shorter operational mine life leading to less years of mine and mine camp maintenance.