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    Wyświetlanie 1-11 z 11
    Tytuł:
    Effect of selenium application on some oxidoreductive enzymes in loamy sand contaminated with diesel oil
    Autorzy:
    Stręk, M.
    Telesiński, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/208141.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    hydrocarbon contamination
    microbial community
    soil
    catalase
    plants
    diesel fuel
    olej napędowy
    zanieczyszczenie gleby
    zanieczyszczenie węglowodorami
    Opis:
    The aim of the study was to assess the impact of diesel oil on the activity of oxidoreductases in loamy sand, and to evaluate effect of selenium addition in the restoration of homeostasis of soil contaminated with diesel oil. The experiment was carried out under laboratory conditions with loamy sand. 0.05 mmol/kg of selenium (Se(IV) or Se(VI)), and diesel oil in the doses of 2, 10 and 50 g/kg were added to the soil samples. In soil treated with selenium and diesel oil activities of dehydrogenases, catalase, o-diphenol oxidase and nitrate reductase were measured on 1, 7, 14, 28, 56 and 112 day of the experiment. Contamination with diesel oil did not cause significant changes only in the activity of o-diphenol oxidase. The highest increase was observed in activity of dehydrogenases. Selenium limited hydrocarbons impact on activity of soil oxidoreductases, especially in loamy sand with diesel oil in the dose of 10 g/kg. Obtained results showed that this effect was reduced after treatment with selenium in both oxidation states but for nitrate reductase and catalase this reduction was reported after application of Se(VI) and Se(IV), respectively.
    Źródło:
    Environment Protection Engineering; 2017, 43, 1; 151-160
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sorption of light hydrocarbons on clays from the Oligocene Kiscell Clay Formation, Hungary
    Autorzy:
    Tóth, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2086550.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Mineralogiczne
    Tematy:
    light hydrocarbon
    sorption of hydrocarbon
    contamination
    clay
    Opis:
    Clays from Solymár (Hungary) were treated with volatile components of light hydrocarbon in order to investigate their ability to sorb these organic compounds. The clays were characterized using XRD, optical microscopy (thin sections) and CEC measurements. The contaminated samples were analyzed using ATD-GC-MS, Rock Eval and XRD. Volatilization of the fluid phase hydrocarbon was monitoring for 663 days. The quantity of volatilized hydrocarbon compounds reached 50.0–65.0% at the end of the experiment. All of the analyses indicate hydrocarbon pollution of the clay layers after the volatilization process. The gross compositions of the fluid and the sorbed phases are different; the total amount of cycloalkanes among the sorbed hydrocarbons is very low. The dominant sorbed components are toluene, xylenes, nC9, nC10, nC11 and nC7. Cyclohexane, methylcyclohexane, benzene, nC12 and nC13 also occur in lower concentrations. The geochemical and XRD results indicate that adsorption onto the external surfaces of the clay minerals was the main sorption process.
    Źródło:
    Mineralogia; 2009, 40, 1/4; 43--52
    1899-8291
    1899-8526
    Pojawia się w:
    Mineralogia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sorption of light hydrocarbons on clays from the Oligocene Kiscell Clay Formation, Hungary
    Autorzy:
    Tóth, Judit
    Powiązania:
    https://bibliotekanauki.pl/articles/2086515.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Mineralogiczne
    Tematy:
    light hydrocarbon
    sorption of hydrocarbon
    contamination
    clay
    Opis:
    Clays from Solymár (Hungary) were treated with volatile components of light hydrocarbon in order to investigate their ability to sorb these organic compounds. The clays were characterized using XRD, optical microscopy (thin sections) and CEC measurements. The contaminated samples were analyzed using ATD-GC-MS, Rock Eval and XRD. Volatilization of the fluid phase hydrocarbon was monitoring for 663 days. The quantity of volatilized hydrocarbon compounds reached 50.0–65.0% at the end of the experiment. All of the analyses indicate hydrocarbon pollution of the clay layers after the volatilization process. The gross compositions of the fluid and the sorbed phases are different; the total amount of cycloalkanes among the sorbed hydrocarbons is very low. The dominant sorbed components are toluene, xylenes, nC9, nC10, nC11 and nC7. Cyclohexane, methylcyclohexane, benzene, nC12 and nC13 also occur in lower concentrations. The geochemical and XRD results indicate that adsorption onto the external surfaces of the clay minerals was the main sorption process.
    Źródło:
    Mineralogia; 2009, 40, 1/4; 43--52
    1899-8291
    1899-8526
    Pojawia się w:
    Mineralogia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Distribution of total petroleum hydrocarbons and polycyclic aromatic hydrocarbons in Musa Bay sediments (northwest of the Persian Gulf)
    Autorzy:
    Tehrani, G. M.
    Hashim, R.
    Sulaiman, A. H.
    Sany, S. B. T.
    Salleh, A.
    Jazani, R. K.
    Savari, A.
    Barandoust, R. F.
    Powiązania:
    https://bibliotekanauki.pl/articles/207391.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    polycyclic aromatic hydrocarbons
    PAH
    petroleum chemistry
    coastal area
    hydrocarbon contamination
    Persian Gulf
    special economic zones
    petroleum hydrocarbons
    wielopierścieniowe węglowodory aromatyczne
    WWA
    ropa naftowa
    pas przybrzeżny
    zanieczyszczenia węglowodorami
    Zatoka Perska
    specjalna strefa ekonomiczna
    węglowodory ropopochodne
    zanieczyszczenia ropopochodne
    zanieczyszczenia substancjami ropopochodnymi
    Opis:
    Sediment samples were collected from the coastal area of the Petrochemical Special Economic Zone of Musa Bay. The samples were analyzed to determine the degree of hydrocarbon contamination and identify the sources of PAHs which were evaluated by employing the ratios of specific PAHs compounds and principal component analysis (PCA). The levels of TPH concentration in the studied area were relatively moderate compared to the world-wide chronically oil-contaminated locations. The concentration of total PAHs was lower than those in other parts of the Musa Bay but approached the NOAA sediment quality guideline value.
    Źródło:
    Environment Protection Engineering; 2013, 39, 1; 115-128
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydrocarbons on sea water: steady-state spreading signatures determined by an optical method
    Autorzy:
    Boniewicz-Szmyt, K.
    Pogorzelski, S.
    Mazurek, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/49155.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    oil pollution
    optical method
    sea water
    hydrocarbon
    contamination
    petroleum derivative
    Opis:
    The spreading properties of several hydrocarbons (vegetable, engine, gear and crude oils) on distilled and artificial sea water were determined under laboratory conditions using a novel optical method. With the aid of Langmuir’s equation, the geometrical signatures of a discrete lens of each hydrocarbon droplet floating on a water tank served to calculate the entering E (31.30–94.18 mN m−1) and spreading S (−3.50 to −57.49 mN m−1) coefficients, and equilibrium thicknesses t∞ (0.20–1.25 cm). They appeared to be in agreement with the values derived from direct interfacial tension measurements (Wilhelmy plate and stalagmometer methods). Empirical relations of the normalized lens radius rL/rdrop and S on the water surface tension γAW were postulated as being of significant value in oil spill assessment studies at sea. The parameters obtained together with the surface properties of a natural surfactant-containing water body represent the principal input data required for modelling the spreading of a surface-tension-gradient-driven oil spill at sea.
    Źródło:
    Oceanologia; 2007, 49, 3
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of Oil Migration Processes in Meadow Soils
    Autorzy:
    Sivkov, Yuriy
    Nikiforov, Artur
    Fefilov, Nikolay
    Powiązania:
    https://bibliotekanauki.pl/articles/123288.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    soil contamination
    migration of pollutants
    total petroleum hydrocarbon
    remediation
    ecology
    Opis:
    The paper presents the results of field and laboratory studies aimed at studying the processes of oil transformation in the soil under the influence of natural biological processes during a two-year period on artificially created old spills. The soil of the study area was characterized as meadow. The high toxic effect of oil was confirmed, which was expressed in the complete extinction of soil flora and fauna. Despite the low oil content in the soil (less than 5%), soil self-purification processes were not observed. Moreover, the high sorption properties of the soil, the violation of the water regime and the lack of aeration led to the “conservation” of oil and significantly slowed down the natural processes of its biodegradation. This was confirmed by a slight change in the content of oil products a year after the start of the experiment, as well as the presence of free oil in the pore space of the studied soil.
    Źródło:
    Journal of Ecological Engineering; 2019, 20, 5; 23-26
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Phytotests as tools for monitoring the bioremediation process of soil contaminated with diesel oil
    Autorzy:
    Wieczorek, D.
    Kwapisz, E.
    Marchut-Mikolajczyk, O.
    Bielecki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/81156.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    phytotoxicity
    bioremediation
    monitoring
    diesel fuel
    fungal enzymatic preparation
    soil contamination
    hydrocarbon degradation
    gas chromatography
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2012, 93, 4
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Concentration of selected metals in butter lettuce (Lactuca sativa L. ) contaminated with anthracene and pyrene
    Koncentracja wybranych metali w sałacie (Lactuca sativa L. ) skażonej antracenem i pirenem
    Autorzy:
    Krzebietke, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/15310.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Tematy:
    metal concentration
    metal
    butter lettuce
    Lactuca sativa
    plant contamination
    anthracene
    pyrene
    polycyclic aromatic hydrocarbon
    Opis:
    PAHs (polycyclic aromatic hydrocarbons) are widespread in the natural environment. They are suspected to have mutagenic, carcinogenic and teratogenic effect on our organisms. Production of wholesome and high quality vegetables does not necessarily involve selection of adequate farmlands or substrates used for vegetable growing. Combustion processes are a source of PAHs in the soil and air. Excessive levels of PAHs are accumulated when the balance between their decomposition in soil and supply from other sources is disrupted. The objective of the present research has been to evaluate the effect of anthracene and pyrene on the concentration of selected trace elements in butter lettuce (Lactuca sativa L.), cultivar Vilmorin, grown on substrates with different nutrient abundance. A pot experiment in four replications was carried out twice in the spring of 2007 and 2008. The pots were maintained in a greenhouse at the University of Warmia and Mazury in Olsztyn. Lettuce was grown under the minimum (optimum) and triple (II fertilization level) substrate abundance in nutrients. In the second variant o the experiment, when the nutrient abundance was elevated, nitrogen was split into two doses: 2/3 of the whole rate were added before planting lettuce seedlings, and 1/3 of the rate was introduced 10 days afterwards. In the first variant, when the nutrient abundance was minimal, all of the nitrogen was added in a single dose. Spraying the lettuce plants with anthracene (ANT), pyrene (PYR0 or their mixture started 10 days after planting. Foliar introduction of the tested PAHs continued for 25 days (in the amount of 1.8 cm3 day–1 at a concentration of 100 mg dm–3) until the vegetative season finished. At the same time, an identical total amount of the PAHs was added to soil as aqueous solution, at 7-day intervals, according to the same pattern. Determinations of the concentrations of heavy metals (Cd, Cu, Ni, Cr, Zn, Mn) was performed with the ASA method, having first mineralised (HClO4+HCl+HNO3) the plant material which had been dried at 60oC. The determinations were compared with certified material (CTA-VTL-2). Concentrations of the trace elements in butter lettuce were significantly varied depending on the experimental factors. A more abundant substrate significantly raised the levels of Cd, Zn and Mn, but had no effect on concentrations of Cu, Ni and Cr. The way the PAHs were applied did not have any influence on modifications in the determined levels of the metals. Out of the two analysed PAHs, anthracene, especially when applied to soil, increased the concentrations of Zn nd Cr in lettuce leaves.
    WWA (wielopierścieniowe węglowodory aromatyczne) są związkami powszechnie występującymi w środowisku. Przypisuje się im działanie mutagenne, rakotwórcze i teratogenne na nasze organizmy. Produkcja zdrowych i dobrych jakościowo warzyw nie zawsze jest związana z wyborem odpowiednich terenów lub podłoży do ich uprawy. Źródłem WWA zarówno w glebie, jak i w powietrzu są procesy spalania. Do nadmiernego ich nagromadzenia dochodzi na skutek zachwiania równowagi między rozkładem w glebie a przychodem z innych źródeł. Celem badań była ocena wpływu antracenu oraz pirenu na zawartość wybranych pierwiastków śladowych w sałacie masłowej (Lactuca sativa L.) odmiany Vilmorin uprawianej w podłożach o zróżnicowanej zasobności. Eksperyment wazonowy w 4 powtórzeniach przeprowadzono dwukrotnie wiosną w latach 2007-2008 w hali wegetacyjnej UWM w Olsztynie. Sałatę uprawiano w warunkach o minimalnej (optymalnej) zasobności podłoża w składniki pokarmowe oraz 3-krotnie zwiększonej (II – poziom nawożenia). Azot wprowadzano w dwóch dawkach przy zwiększonej zasobności podłoża: 2/3 dawki przed posadzeniem rozsady, a 1/3 dawki po 10 dniach od posadzenia oraz w całości w przypadku pierwszego poziomu nawożenia. Oprysk roślin antracenem (ANT) oraz pirenem (PYR) i ich mieszaniną rozpoczęto po 10 dniach od posadzenia. Dolistne wprowadzanie wybranych WWA trwało przez 25 dni (w ilooeci 1,8 cm3 doba–1 o stężeniu 100 mg dm–3) do końca okresu wegetacji. Jednocześnie doglebowo dostarczono sumaryczną ilość WWA w takim samym układzie 1 raz na 7 dni w wodnym rozcieńczonym roztworze. Zawartość wybranych metali ciężkich (Cd, Cu, Ni, Cr, Zn, Mn) oznaczano metodą ASA po mineralizacji (HClO4+HCl+HNO3) wysuszonego w temp. 60°C materiału roślinnego. Oznaczenia wykonano wobec materiału certyfikowanego (CTA-VTL-2). Zawartość pierwiastków śladowych w sałacie masowej była istotnie zróżnicowana w zależności od czynników doświadczalnych. Zasobniejsze podłoże wpływało istotnie na zwiększenie zawartości Cd, Zn i Mn, nie miało zaś wpływu na koncentrację Cu, Ni i Cr. Sposób aplikacji WWA nie miał wpływu na zmiany zawartości oznaczonych metali. Spośród testowanych WWA, szczególnie antracen aplikowany doglebowo zwiększał zawartość Zn i Cr w liściach testowanej rośliny.
    Źródło:
    Journal of Elementology; 2011, 16, 4
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Petroleum Hydrocarbon Pollution in Soil and Surface Water by Public Oil Fields in Wonocolo Sub-district, Indonesia
    Autorzy:
    Sari, G. L.
    Trihadiningrum, Y.
    Ni'matuzahroh, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/123774.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    human risk
    soil pollution
    surface water contamination
    total petroleum hydrocarbon
    public crude oil fields
    Opis:
    Public crude oil fields in Wonocolo sub-district were active from 1942 until now and have inadequately operated. The aims of this research were to measure the level of total petroleum hydrocarbon (TPH) pollution and their distribution in soil and surface water at the Wonocolo public crude oil fields. Twelve composite soil samples were collected from uncontaminated and contaminated sites of old well (OW), transportation line (T), and refinery area (R) at the depths of 0–30 cm, 30–60 cm, and 60–90 cm. The composite surface water sample was obtained from two points with different distances from the river side. TPH from soil and surface water samples were extracted using soxhlet and gravimetric method. Quantification of TPH was performed using Fourier Transform Infrared (FT-IR) Spectrometer. From the results of this study, it was concluded that soils and surface water are contaminated by TPH of 119.80–107,190 µg/g and 211,025.73 µg/L, respectively. TPH is clearly located in the upper of 0–30 cm depth at OW, T, and R sites (52,328.14–107,189.63 µg/g). These concentrations exceeded the soil quality standard of TPH and classified as category A for human hazard risk. The findings from this study show that there are considerable health risks which are potentially poisonous to humans in the local area. We recommend that remediation could be conducted using biological methods to reduce TPH pollution level.
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 2; 184-193
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geotechnical evaluation of clayey soil contaminated with industrial wastewater
    Ocena geotechniczna gleby gliniastej zanieczyszczonej ściekami
    Autorzy:
    Karkush, M. O.
    Al-Taher, T. A. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/962334.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    zanieczyszczenie gleby
    ścieki przemysłowe
    węglowodór ropopochodny
    gleba gliniasta
    właściwości geotechniczne
    soil contamination
    industrial wastewater
    petroleum hydrocarbon
    clayey soil
    geotechnical properties
    Opis:
    The impacts of industrial wastewater contamination on the geotechnical properties of clayey soil have been studied in the research presented in this paper. The contaminant in question is industrial wastewater released from Thi-Qar oil refinery as a by-product of production, and the soil samples obtained from Thi-Qar oil refinery plant in Al-Nassyriah (a city located in the south of Iraq). The geotechnical properties of contaminated soil samples were compared with those of intact soil to measure the effects of such a contaminant. The soil samples were obtained from three locations in the study area; representing the highly contaminated area, the slightly contaminated area, and the intact area used as a reference for comparison of test results. The results of the tests showed that the contaminant causes an increase of natural moisture content, field unit weight, Atterberg’s limits, and maximum dry unit weight, as well as an increase of the compression index and the coefficient of vertical consolidation. Also, the contaminant causes a decrease in specific gravity, the optimum moisture content initial void ratio, the swelling index, the coefficient of permeability, and cohesion between soil particles.
    Niniejsza praca została poświęcona badaniu wpływów zanieczyszczeń ściekami na właściwości geotechniczne próbek gleby gliniastej. Czynnikiem zanieczyszczającym są ścieki przemysłowe, uwalniane z rafinerii Thi-Qar jako produkty uboczne produkcji i wyrzucane bezpośrednio na glebę, powodując jej zanieczyszczenie. Ten produkt uboczny będzie dalej określany jako węglowodory ropopochodne (THP), w celu uniknięcia złożoności omawianych wpływów poszczególnych składników ścieków przemysłowych na właściwości geotechniczne gleby. Próbki gleby zostały pobrane z rafinerii Thi-Qar w mieście Al.-Nassyriah, położonym na południu Iraku, o współrzędnych geograficznych (N 305916.2, E 0461332.8). Zanieczyszczone i nierozłożone próbki gleby zostały pobrane w trzech miejscach na badanym obszarze oraz na trzech głębokościach w każdym z tych miejsc. W celu zbadania wpływu różnych stężeń węglowodorów ropopochodnych na właściwości geotechniczne gleby, przeprowadzono badanie trzech lokalizacji o bardzo zanieczyszczonym obszarze (NA1), nieznacznie zanieczyszczonym obszarze (NA2) oraz nienaruszonym obszarze (NA3).
    Źródło:
    Archives of Civil Engineering; 2017, 63, 1; 47-62
    1230-2945
    Pojawia się w:
    Archives of Civil Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Baltic Sea - an example of how to protect marine coastal ecosystems
    Autorzy:
    Nehring, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/48329.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    marine environment
    crude oil
    inorganic nutrient
    environment
    trace metal
    ecosystem protection
    contamination
    chlorinated hydrocarbon
    HELCOM Baltic Monitoring Programme
    Baltic Sea
    eutrophication
    Opis:
    The Baltic Sea covers an area of 415 000 km2. A typical brackish sea, it is very sensitive to anthropogenic activities. Inorganic nutrients, trace metals, chlorinated hydrocarbons and crude oil products are contaminants studied in the Baltic Monitoring Programme of HELCOM. The data collected by the riparian countries forms the basis for the periodic assessments of the state of the marine environment of the Baltic Sea Area produced by HELCOM every five years. Since 1992 marine nature conservation has been part of the HELCOM convention. According to the third status report issued in 1996, it was the first time that HELCOM could strike a positive balance with regard to the decreasing environmental load. This is also reflected in lower concentrations of harmful substances in fish, marine mammals and seabirds in the Baltic Sea Area. The reasons for this progress are the protective actions initiated by HELCOM and the economic collapse in some of the former East Bloc countries, the latter resulting in an abrupt fall in industrial and agricultural production. Although the restoration of the Baltic ecosystem has only just begun, the protective measures introduced to achieve this aim can serve as an example of how to solve similar problems in other semi-enclosed basins and shelf seas.
    Źródło:
    Oceanologia; 2001, 43, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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