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

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[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

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

Tytła Malwina

Laboratorium - Przegląd Ogólnopolski

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2024

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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.

3

Assessing the Effect of Rice Management System on Soil and Rice Quality Index in Girimarto, Wonogiri, Indonesia

Romadhon Muhammad Rizky, Mujiyo Mujiyo, Cahyono Ongko, Dewi Widyatmani Sih, Hardian Tiara, Anggita Akas, Hasanah Khalyfah, Irmawati Viviana, Istiqomah Nanda Mei

Journal of Ecological Engineering

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2024

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Vol. 25, nr 2

126--139

EN

Excessive chemical input in rice management systems has an impact on reducing soil quality and rice quality. The research that links soil quality with rice quality is needed to produce recommendations for improving rice cultivation to make healthy rice. This study aimed to determine the index values of soil and rice quality in organic, semi-organic, and conventional paddy fields as well as their relationship to formulate recommendations for land improvement. This research used descriptive explorative methods and purposive sampling to determine the soil and rice samples. This data was then analyzed according to the method for determining the soil quality index and rice quality based on principal component analysis. The results reveal low soil and rice quality in various rice cultivation systems. Organic management of paddy fields has the highest index among other cultivation systems, with a value of 0.36, and tends to approach the moderate index. For the rice quality values, the organic system of paddy fields has the highest value (0.28) and tends to come with the status of moderate rice quality. There is a very significant correlation between soil quality and rice (r=0.80; p-value <0.001; n=54), that high-quality soil will produce high-quality rice too. The soil and rice quality in the organic system are the best compared to other systems. This condition proves that applying organic materials can increase soil quality and improve the quality of rice.

4

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

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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.

5

A biomonitoring study of Diadema setosum: metal bioaccumulation and current status in Iskenderun Bay, eastern Mediterranean

Uğurlu Erkan

Oceanological and Hydrobiological Studies

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2023

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Vol. 52, No. 4

484--492

EN

Concentrations of aluminum, chromium, cobalt, nickel, cadmium, lead, manganese, iron and zinc were determined in sea urchin species, Diadema setosum from Iskenderun Bay in December 2022. The level of metals was determined by Inductively Coupled Plasma-Mass Spectrometer (ICP-MS). Concentrations of the heavy metals in the examined sea urchins ranged as follows: Al 0.07-7.17 μg g-1; Cr 0.07–0.8 μg g-1; Co 0.01–0.2 μg g-1; Ni 0.2–2.9 μg g-1; Cd 0.0–0.02 μg g-1; Pb 0.4-3.5 μg g-1; Mn 0.03–0.4 μg g-1; Fe 1.2-57.2 μg g-1; Zn 0.28–2.7 μg g-1, respectively. The highest accumulation of Fe and Pb metals was determined in the tissues of the sea urchin. The present study suggests that D. setosum could be a potential biological indicator of metal pollution in the Iskenderun Bay. Furthermore, soft tissues generally had lower levels overall. For this reason, the data show that D. setosum is a very good heavy metal collector and therefore may be used successfully to monitor heavy metal levels in Iskenderun Bay.

6

First survey of metallic distribution in zooplankton from a south Moroccan area

Bouthir Fatima Zohra, Afandi Imane, Talba Sophia, Labonne Maylis, Masski Hicham, Waeles Mathieu, Lae Raymond

Oceanologia

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2023

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Vol. 65 (4)

612--623

EN

The Moroccan Southern Atlantic coast is mainly influenced by upwelling, Saharan dust and anthropogenic micropollutant input. These factors contribute to increasing the availability of metal elements in waters. To differentiate human impact from natural variability, knowledge of background concentrations of metals and their fluctuations in bioindicator organisms such as zooplankton is important. This work aims to determine the levels of metals elements (Zn, Mn, Pb, Cu, Cd, Cr, Co, Ni, Li, As, Sr, U, Fe and Ba) in zooplankton along the southern area of the Atlantic coast of Morocco. Zooplankton samples were collected in the summer (July 2013) and autumn (December 2013) at 27 stations from Sidi Ifni to the south of Dakhla. All stations were located on transects perpendicular to the coast. The analysis of metal elements in zooplankton was determined by ICP–MS. The results revealed that in all transects, metal concentrations were below the regulatory limits. Metal enrichments were observed in the south and decreased gradually to the north. This study can be used as baseline data for the metal contents of zooplankton in Moroccan South Atlantic coastal water. A comparison to worldwide reported data on zooplankton did not reveal any suggestions on increased metal presence in the area investigated.

7

Assessment of the Impact of a Recultivated Landfill on the Soil Environment

Pusz Agnieszka, Wiśniewska Magdalena, Rogalski Dominik, Staśkiewicz Marcin

Journal of Ecological Engineering

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2023

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Vol. 24, nr 12

407--418

EN

Recultivated landfills, despite remedial actions, may pose a threat to human health and the environment, and therefore require long-term monitoring. The aim of the work was to investigate the impact of recultivation treatments on changes in the physical and chemical properties of soils in the vicinity of a landfill for waste other than hazardous and neutral. In order to carry out the work, drillings were made around the tested landfill, from which samples were taken and selected physical and chemical properties were determined, including substances causing risks that are particularly important for the protection of the earth’s surface. The tested soils were characterized by a neutral and alkaline reaction and a high degree of saturation of the sorption complex with exchangeable basic cations after the use of dust and ash as a recultivation material. Leaks and leachate accumulation were found in the northern part of the facility. The permissible metal contents for industrial areas (group IV) and forest areas (group III) were not exceeded. In the northern part of the landfill area, the permissible content of cadmium was exceeded, while in the southern part, the permissible content of zinc, lead and cadmium was exceeded for agricultural areas (group II). The use of dust and ashes for the recultivation of the landfill in its southern part limited the migration of pollutants deeper into the profile and resulted in an improvement in the physical and chemical properties of the tested soils. The conclusion stated that there is a need to undertake further remediation activities and monitoring studies in order to minimize potential migration of pollutants into the soil and water environment, posing a threat to human health and the environment.

8

Geochemistry indices and biotests as useful tools in the assessment of the degree of sediment contamination by metals

Koniarz Tomasz, Tarnawski Marek, Baran Agnieszka

Geology, Geophysics and Environment

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2023

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Vol. 49, no. 1

5--18

EN

Ecological and geochemical indicators have been widely accepted as tools with the potential for rapid risk assessment of metal contamination of bottom sediments. In this study we propose a selection of such indicators to characterize the potential ecological risks stemming from metal contamination of the bottom sediments of the Chechło reservoir (S Poland). The Chechło reservoir is located in an area formerly occupied by zinc and lead ore mining and processing industry. High amounts of metals, especially zinc (39.37–4772.00 mg/kg d.m.), cadmium (0.37–21.13 mg/kg d.m.) and lead (4.50–434.49 mg/kg d.m.) have been found in the bottom sediments. Both geochemical (CD – contamination degree) and ecological indices (mean PECQ) were indicative of bottom sediment contamination and their potential toxicity to living organisms. Most of the bottom sediment samples (71%) examined were toxic for Heterocypris incongruens, while only 9% of the samples were toxic to Sinapis alba. However, no significant correlations between the metal content and the response of the test organisms were observed. Correlation and principal component analyses (PCA) showed that silt and clay fractions were the key factors influencing the metal content in the sediments. Our study makes a contribution to building evidence of the need to integrate several indices for the assessment of environmental risks related to the presence of metals in bottom sediments rather than relying on a single one.

9

The Impact of Climate Conditions on the Yield of Some Fall Barley Cultivars for the Production of Beer in the Kosovo Plain

Shala Nexhdet, Dreshaj Adem, Hoxha Ibrahim, Sejfijaj Osman, Millaku Bedri

Ecological Engineering & Environmental Technology

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2023

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Vol. 24, iss. 2

261--268

EN

Barley is a plant in Europe that occupies an important place in the structure of cultivated plants. The main use of barley is for brewing beer. Even in Kosovo, the main part of barley production is used in the beer industry. The beer industry in Kosovo produces beer prepared from barley; it is liked by the consumer, not only in Kosovo but also in Albania. Our brewing industry mainly uses locally grown barley. Our farmers have planted the traditional cultivars of barley but, recently and in the future, new cultivars have been introduced and introduced, preferring those that give high yields but also with good chemical and technological indicators. Our study aimed to determine the influence of climatic (temperature and humidity) and soil factors on the yield and quality of barley production in both areas of its cultivation. The presence of mineral elements in the soil are necessary for barley such as: Calcium, Iron, Magnesium, Phosphorus, Potassium, Zinc and climatic factors for the production of beer barley.

10

Investigation of Heavy Metals in the Surface and Groundwater and its Health Risk Assessment in the Parts of Gudiyattam Region, Tamilnadu, India

Krishnam Shankar Hemath Naveen, Ponnusamy Porchelvan

Ecological Engineering & Environmental Technology

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2023

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Vol. 24, iss. 5

20--29

EN

Health risk assessment and heavy metals analysis was carried out for 8 lakes water samples and 8 open well water samples in Gudiyattam region. Metal Index(MI), Adult Infusion(AI), and Hazardous Quotient(HQ) were determined to know the health risk in all locations using ingestion and dermal pathway. MI values are greater than 1 in all lakes as well as in well water for the location S1 to S3 and in S6 which indicates this water is unfit for drinking purposes. Based on HQingestion and HQdermal value, the location S1 to S4 are more polluted for the lake water. Among all the well locations S4 is the most polluted. Considering the Hazard Index (HI) of these metals was found to be greater than 1. Carcinogenic Index(CI) exceeded the acceptable limit of 1.0x 10(-06 to-04) in 5 locations for lake water and 1 location for well water. Especially the location S4 in lake water as well as in well water have direct proportionality in pollution load. The water sample previously said location can pose a serious risk to living beings.

11

Bioaccumulation and Biomagnification from Soil to Nettle-Snail and Extension Heavy Metal Pollution of Mining Activity "Ferronikel" in Drenas

Bici Mentor, Halili Jeton, Bislimi Kemajl, Zogaj Muhamet, Mazreku Ilir

Ecological Engineering & Environmental Technology

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2023

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Vol. 24, iss. 9

358--366

EN

In this research project, we measured the impact of the activity of "Ferronikel" factory on the concentrations of heavy metals (Pb, Zn, Ni) in soil, plant (Urtica dioica L.) and shell of snail (Helix pomatia L.) in the locality of Drenas. Large quantities of these metals come from natural and anthropogenic sources including mining activity, agriculture, pesticide use, industrialization, and inadequate disposal of mineral waste and artificial fertilizers. These inorganic pollutants are deposited in the soil, water, and atmosphere in various forms of complexes and are thus transmitted from plants, animals to humans. Climatic factors such as winds, rains, and temperatures are believed to be major contributors to the spread over time and space of heavy metals in the environment. Soil samples, nettle plant and snail, were collected from the selected pollution source of factory "Ferronikel" at distances of 1 km, 2 km, and 5 km in the radius circles divided into four geographical areas. The samples were digested in microwave at 200 °C for 45 min and have been read in two types of absorbers Thermo and Contra AAA. Higher concentrations of Pb, Zn, and Ni were recorded in the southern parts of the country compared to that control with significant differences (p<0.01). Bioaccumulation and biomagnification levels of these heavy metals have also been recorded in the roots, stalks, and leaves of the stinging nettle plant as well as in snail shells. The results show that the stinging nettle plant has translocated larger amounts of these heavy metals especially Pb along with the vegetative organs wherefrom these they are carried in the snail shell, which is fed on the stinging nettle plant. Also, results shown that the nettle plant Urtica dioica can be used in phytoremediation process whereas snail Helix pomatia can be used like bioindicator of heavy metal pollution.

12

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.

13

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.

14

Coastal cliff erosion as a source of toxic, essential and nonessential metals in the marine environment

Bełdowska Magdalena, Bełdowski Jacek, Kwasigroch Urszula, Szubska Marta, Jędruch Agnieszka

Oceanologia

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2022

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No. 64 (4)

553--566

EN

Due to the rising environmental awareness, emissions and releases of pollutants, including metals, have been considerably reduced in the last decades. Therefore, the remobilization of natural and anthropogenic contaminants is gaining importance in their biogeochemical cycle. In the marine coastal zone, this process occurs during the erosion of a shore, especially the most vulnerable cliffs. The research was conducted in the Gulf of Gdańsk (southern Baltic Sea) from 2016 to 2017. The sediment cores were collected from four cliffs; additionally, marine surface sediments were also taken. The concentrations of essential (Cr, Mn, Fr, Cu, Zn) and nonessential (Rb, Sr, Y, Zr, Ba) metals were analyzed using the XRF technique. The levels of the analyzed metals were relatively low, typical of nonpolluted areas. However, considering the mass of eroded sediments, the annual load of metals introduced into the sea in this way is significant. In the case of Cu, Zn, and Y the load can amount to a few kilograms, for Cr and Rb – over ten kilograms, for Mn, Sr, and Zr – several tens of kilograms, for toxic Ba – over 100 kg, and in the case of Fe – 4.8 tonnes. During strong winds and storms, when the upper part of a cliff is eroded, especially the load of Zn and Cr entering the sea may increase. The content of Cr, Zr, and Ba in the cliffs was higher compared to marine sediments from the deep accumulation bottom, which indicates that coastal erosion may be an important source of these metals.

15

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.

16

Sensitivity of Hydrocharis morsus-ranae L. to selected metals and its suitability for phytoremediation of waters contaminated with metals. A mesocosm study

Gałczyńska Małgorzata, Wróbel Jacek, Bednarz Katarzyna

Journal of Water and Land Development

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2022

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no. 55

67--77

EN

Anthropogenic pollution leads to increased concentrations of metals in the freshwater and macrophyte. Aquatic plants substantially contribute to the structure, function as well as and service provision of aquatic ecosystems. Our microcosm experiments were to test the possibility of the physiological response of Hydrocharis morsus-ranae to metal (Cd, Pb, Cu, Zn, Mn, Fe at three level of concentration) contaminated waters. Biomass was analysed at the beginning and at the end of the experiment. At the same time contents of photosynthetic pigments in leaves were estimated spectrophotometrically. We found that this macrophyte had the ability to grow in contaminated waters, but the effects of high concentration of isolated metals in water will indicate changes consisting in the disappearance of a significant part of biological populations were which manifested in alteration of the content of photosynthetic pigments as well as this plant’s growth. We show that generally stress of Zn and Cu influenced the drop of dry biomass which was connected with a positive correlation between the amount of dry biomass and the content of chlorophyll a and carotenoids, or only carotenoids, respectively. The highest stress of Pb and Fe (third concentrations of these metals) also influenced the drop of biomass. We concluded that none of Cd concentrations were toxic to this plant, but the effect of Mn stress was not unequivocal. Moreover, plant growth was stimulated by low Fe concentrations (first concentration) demonstrating the hormesis effect. When plants were exposed to this metal, there was no evidence of damage to the photosynthetic processes.

17

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.

18

A Model-Based Approach to Risk Evaluation and the Assessment of Protection Provided by Water Intake and Treatment Systems

Wysowska Ewa, Kicińska Alicja

Journal of Ecological Engineering

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2022

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Vol. 23, nr 7

284--298

EN

This study presents an assessment of the protection provided by water intake and treatment systems against potential health risk to water consumers. To perform the assessment a case study was conducted involving modelling and risk assessment based on scenarios of decreasing water quality at the intakes (i.e. emergency situations). The study sites were two continuously operating water treatment plants in Southern Poland (CEE). The study material were the results of tests conducted in the years 2012–2019 on samples of water taken directly at the intakes and samples of treated water. The samples were used to determine the concentration of selected metals (Cd, Cr, Mn, Ni, Pb and Zn), organic pollutants (benzo(a)pyrene, benzene, acrylamide, epichlorohydrin, vinyl chloride and 1,2-dichloroethane) and bacteriological pollutants (Coliform bacteria, Escherichia coli, Enterococcus faecali and Clostridium perfringens). The non-carcinogenic (HI) and carcinogenic (CR) hazard indexes were estimated based on the quality of water at the intake using linear regression models. The risk values obtained were compared with permissible values specified in the US EPA methodology. It was demonstrated that the concentrations of the xenobiotics analysed in treated water would have to increase 11 times in the case of adults and 29 times in the case of children before the risk level related to drinking water exceeded permissible values. In the least favourable exposure scenario modelled, assuming the presence of organic xenobiotics in potable water, the total HI amounts to only 10% of the permissible value in adults and 1.5% in children. The total CR calculated for the 3-times lower water quality did not exceed permissible values, which proves that the water treatment systems are safe.

19

Accumulation of Heavy Metals in Silphium Perfoliatum L. for the Cultivation of Oil-Contaminated Soils

Lopushnyak Vasyl, Polutrenko Miroslava, Hrytsulyak Halyna, Plevinskis Pavlo, Tonkha Oksana, Pikovska Olena, Bykina Nina, Karabach Kateryna, Voloshin Yurii

Ecological Engineering & Environmental Technology

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2022

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Vol. 23, iss. 3

30--39

EN

The article presents the results of research on the effectiveness of the use of crops of Silphium Perfoliatum L. for phytoremediation of soils in oil-contaminated areas. Silphium Perfoliatum L. is characterized by unique opportunities for productivity and longevity, can be cultivated in one place for many years. The aim of our work was investigating the rate of accumulation of heavy metals in the aboveground and root mass of Silphium Perfoliatum L. during the introduction of sewage sludge in oil-contaminated areas. The research was conducted in the Precarpathians of Ukraine in Ivano-Frankivsk region. The experimental field is slightly sod-podzolic sandy, there are several remnants of oil spills, the so-called oil slicks. The experiment included 8 options of fertilizing Silphium Perfoliatum L. In soils of contaminated areas determined content of total and mobile forms of metals and their content in the green mass and plant roots by methods according to ISO 4770.3 – GOST 4770.9, atomic adsorption methods in the lab of Ivano-Frankivsk State Institution branch "Soil Protection". The metal translocation coefficient in the system «soil-vegetative mass» and in the system «soil-root» increases in a number: Cd → Ni→ Cot → Pb. That is, the lowest translocation coefficient is in the lead. However, the difference is that in the system «soil-root» the coefficient of translocation is higher by 2–3%, from the translocation of metals in the system «soil – vegetative mass». The coefficient of biological accumulation of heavy metals by perforated sylph increase in a number of elements: Pb → Co → Ni → Cd.

20

Chemical characterization of bulk depositions in two cities of Upper Silesia (Zabrze, Bytom), Poland : case study

Michalski Rajmund, Pecyna-Utylska Paulina

Archives of Environmental Protection

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2022

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Vol. 48, no. 2

106--116

EN

The chemical composition of bulk deposition is an important aspect of assessing ambient air pollution. It contributes significantly to the removal of pollutants from the atmosphere and their transfer to other ecosystems. Thus, it is a reliable determinant of environmental chemistry. Therefore, bulk deposition can be considered useful for tracking the migration path of substances from different sources. The aim of the study carried out at five measurement points in Zabrze and Bytom was to assess the content of selected physico-chemical parameters in bulk deposition. Samples were collected continuously from November 2019 to November 2020. In the collected samples the following were determined: COD, pH, conductivity, dissolved organic carbon, inorganic carbon and total carbon; inorganic anions (Cl-, SO42-, NO3-, NO2-, Br-, PO43-) and cations (Li+, Mg2+, Ca2+, Na+, K+, NH4+), metals and metalloids (Mn, Ni, Co, Cu, Zn, As, Cd, Pb, Cr, and Fe), and carboxylic acids (formic, acetic, oxalic). The obtained test results were statistically processed using Excel, and the normality of data distribution was verified by Shapiro-Wilk test. The results show that pollutants transported in the atmosphere and introduced with precipitation in the Zabrze and Bytom areas are a significant source of area pollution of the region.