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Wyszukujesz frazę "Gondek, A." wg kryterium: Wszystkie pola

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    Wyświetlanie 1-8 z 8
    Tytuł:
    Content of PAHs, activities of γ-radionuclides and ecotoxicological assessment in biochars
    Autorzy:
    Gondek, K.
    Mierzwa-Hersztek, M.
    Smreczak, B.
    Baran, A.
    Kopeć, M.
    Mróz, T.
    Janowski, P.
    Bajda, T.
    Tomczyk, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/778621.pdf
    Data publikacji:
    2016
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    biochar
    sewage sludge
    PAHs
    γ-radionuclides
    Vibrio fischeri
    Opis:
    The aim of this research was to determine the effect of thermal conversion temperature and plant material addition to sewage sludge on the PAHs content and the activity of selected γ-radionuclides in biochars, and to conduct an ecotoxicological assessment. The pyrolysis of the mixtures of sewage sludge and plant materials at 300°C and such temperature caused an increase in the contents of 2- and 3-ring hydrocarbons. During the pyrolysis of organic materials at 600°C, the amount of the following compounds was reduced in biochars: benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, indeno[1,2,3c,d]pyrene, dibenzo[a,h]anthracene, and benzo[g,h,i]perylene. Among γ-radioisotopes of the elements, natural radiogenic isotopes were dominant. 137Cs was the only artificial radioactive isotope. The pyrolysis of the mixtures of municipal sewage sludge and plant materials revealed that isotope  40K had the highest radioactive activity. In the case of other analysed nuclides, activities of  212Pb,  214Pb,  214Bi, and  137Cs were determined after the sample pyrolysis. The extracts from the mixtures of sewage sludge and plant materials were non-toxic to Vibrio fischeri.
    Źródło:
    Polish Journal of Chemical Technology; 2016, 18, 4; 27-35
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    FT-IR analysis and the content of phenolic compounds in exogenous organic matter produced from plant biomass
    Autorzy:
    Mierzwa-Hersztek, M.
    Gondek, K.
    Nawrocka, A.
    Pinkowska, H.
    Bajda, T.
    Stanek-Tarkowska, J.
    Szostek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/15427.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Źródło:
    Journal of Elementology; 2019, 24, 3
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The content and composition of organic matter in bottom sediments of the Rybnik reservoir - preliminary studies
    Autorzy:
    Baran, A.
    Mierzwa-Hersztek, M.
    Gondek, K.
    Szara, M.
    Tarnawski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/184606.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    bottom sediments
    organic matter
    buffer capacity
    pollutions
    Opis:
    Organic matter has important influences on the fate of environmental pollution in water dam reservoirs. The aim of the studies was to assess content of organic matter fractions in Rybnik reservoir bottom sediments, and to determine their influence on the content of heavy metals and PAHs. In three sediment samples, the content of C organic (Corg), C extracted (Cex), C humic acid (Cha), C fulvic acid (Cfa) and C non-hydrolyzed (Cnh), buffer capacity, and content of heavy metals and PAHs was analyzed. We found the highest content of Corg, Cex, Cha, Cfa and Cnh in sample 3 (the outlet, near the dam), while the lowest content was found in sample 2 (middle). The fraction of Cnh was dominant in sediment sample 3 (outlet, near dam) and 1 (inlet), whereas the fraction of Cha dominated in sample 2 (middle). Rybnik bottom sediments are characterized by their high buffer capacities (samples 3, 1) shaped among others by the high content of organic matter. The high organic matter content in samples 3 (outlet) and 1 (inlet) and also high total contents of heavy metals and PAHS in these sediments demonstrate that these pollutants have a strong affinity for organic matter in the sediments. Moreover, the highest mobility of metals, from sample 2 (middle), is connected with the low content of organic matter substances and the low buffer capacities of sediments.
    Źródło:
    Geology, Geophysics and Environment; 2018, 44, 3; 309-317
    2299-8004
    2353-0790
    Pojawia się w:
    Geology, Geophysics and Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in the soil content of organic carbon nitrogen and sulphur in a long-term fertilisation experiment in Czarny Potok (Poland)
    Autorzy:
    Kopec, M.
    Gondek, K.
    Mierzwa-Hersztek, M.
    Jarosz, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1192780.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Tematy:
    acidification
    macronutrient ratios
    meadow sward yield
    Opis:
    The paper discusses fluctuations, including the underlying causes, in the organic carbon, nitrogen and sulphur content of meadow sward from a fertiliser experiment set up on a mountain meadow in 1968. The experiment included 7 fertilising objects with full NPK fertilisation and with control treatment. The area of the experimental plots was 42 m2 (6 m x 7 m). The experimental treatments involved the following fertilisation regimes: nitrogen alone, phosphorus alone, phosphorus and potassium, nitrogen (at two doses of application, and until 2004 in two forms: ammonium nitrate and urea), phosphorus and potassium. Since 1985, the experiment has been conducted in two series: unlimed and limed. Botanical composition and plant yield formed under experimental conditions strongly affected the soil properties. The following were determined in the soil: pH, hydrolytic acidity and total forms of carbon, nitrogen, and sulphur. Soil properties are important for sustainable agriculture and conservative livestock rearing. Changes in acidification were primarily caused by fertilisation with nitrogen, while liming conducted every 10 years significantly counterbalanced this negative effect. Mineralisation of organic matter caused by liming increased the total nitrogen content, hence a significantly narrower C:N ratio was observed. The C:N and C:S ratios cannot be treated as valid indicators of grassland management practice. The reason is the high dynamic of sulphur, nitrogen and carbon cycles caused not only by liming, but also by diversity in plant yield.
    Źródło:
    Journal of Elementology; 2021, 26, 1; 33-46
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of soil quality after biochar application based on enzymatic activity and microbial composition
    Autorzy:
    Mierzwa-Hersztek, M.
    Gondek, K.
    Klimkowicz-Pawlas, A.
    Chmiel, M.J.
    Dziedzic, K.
    Taras, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082557.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    biochar
    soil
    enzymatic activity
    microorganisms
    soil quality indexes
    Opis:
    Soil microorganisms play a key role in many biochemical processes essential for the environment and for the ecological and production functions of soils, hence they are very important quality indicators. The study aimed at evaluating the effect of 1 and 2% additions of wheat and miscanthus straw biochars on soil enzymatic activity (dehydrogenases, urease, phosphatases) and the number of microorganisms (bacteria, fungi, actinobacteria). Pot experiments were carried out on soil with a loamy sand texture. The geometric mean of enzyme activities, biological index of fertility, and the integrated total enzyme activity index were used to explore the relationships between soil enzyme activities and the microbiological and chemical properties of soil. The addition of 1% miscanthus straw biochar had the most beneficial effect on the number of bacteria and fungi (increase by 380 and 26%, respectively), and 1% wheat straw biochar on the number of actinomycetes (increase by 273%). The correlation analysis between the number of actinomycetes and the chemical parameters of the soil showed the significant effect of the content of Ntotal (r = 0.76) and Ctotal (r = 0.85). The values of biological index of fertility, total enzyme activity index and geometric mean of enzyme activities indexes showed that the best quality of soil was produced by a 2% addition of wheat straw biochar.
    Źródło:
    International Agrophysics; 2019, 33, 3; 331-336
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ways of increasing the magnesium content in sward from a long-term fertilizer experiment
    Autorzy:
    Kopec, M.
    Mierzwa-Hersztek, M.
    Gondek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/14472.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Tematy:
    magnesium content
    sward
    meadow
    mountain meadow
    long-term fertilizer experiment
    magnesium
    fertilization
    liming
    uptake
    temperature
    precipitation
    pH
    Opis:
    The paper discusses fluctuations, and their underlying causes, in the magnesium content of meadow sward from a fertilizer experiment set up on a mountain meadow in 1968. The fertilization experiment comprised 8 different treatments, with the following modifications: liming, magnesium and microelement fertilization and a change in the sward use made during the experiment so as to regenerate the sward and to improve the yielding potential. In the initial period, magnesium concentrations in the sward were assessed using the ASS technique after dry mineralization of samples and dissolution of the residue in diluted nitric acid. Later, the ICP technique was applied, including an internal reference sample for the methods. The cultivation measures caused variations in magnesium concentrations in the sward, depending on a number of factors, among which direct fertilization was not the most significant one. For example, the ambient temperature during the plant growing season strongly influenced the magnesium content, irrespectively of a cut. There was no effect of rainfall of the magnesium content, although atmospheric precipitation was able to raise considerably the charge of this element. In the second cut and under neutral soil pH, higher concentrations of magnesium were noted in the sward. This could have resulted from either the lower second swath yielding or the optimum conditions for the uptake of magnesium by the sward that occurred during its growth. The investigation results failed to provide an unambiguous answer to the question whether magnesium fertilization affected the concentrations of this element. Nonetheless, in order to maintain the production of valuable fodder it is essential to return systematically the elements taken up with plant yield to the soil. In intensively managed meadows, amounts of magnesium removed from the soil with the harvested biomass can be as high as several kilograms per hectare.
    Źródło:
    Journal of Elementology; 2015, 20, 4
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effectiveness of biochar in mitigating changes in the chemical properties of sandy soil treated with various chemicals
    Autorzy:
    Gondek, K.
    Mierzwa-Hersztek, M.
    Kopec, M.
    Losak, T.
    Bennewitz, E.
    Spandel, A.
    Kuc, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1192382.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Tematy:
    biochar
    soil
    sorption complex
    pH
    electrical conductivity
    heavy metal
    Opis:
    The progressive degradation of soils is a recently increasing environmental problem. The risk of soil degradation may be associated, for example, with landslides, flooding, soil erosion. However, these are relatively rare phenomena compared to the risk of chemical degradation caused by human activity. Given the limited research on the positive effect of miscanthus biochar on soil properties, a study was carried out aimed at determining changes in pH, electrical conductivity, sorption properties, and mobility of selected heavy metals in sandy soil treated with various chemicals. Biochar used in the study was produced at a temperature of 300°C. The addition of biochar to soil generally increased the pH value, regardless of the type of chemical degradation. The study revealed a decrease in the hydrolytic acidity value and, at the same time, no significant changes in the content of alkaline cations and sorption capacity of the biochar-treated soil. The best effect on reducing the mobility of trace elements was achieved by adding biochar to the soil supplemented with acidifying substances. Bearing in mind the current agricultural and environmental problems, there is a need to increase the effectiveness of biochar and to direct its action to improve specific soil properties.
    Źródło:
    Journal of Elementology; 2020, 25, 3; 1045-1058
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Content rating of chosen trace elements in plants and soil after application of newspaper waste
    Ocena zawartości wybranych pierwiastków śladowych w roślinach i glebie po aplikacji papieru gazetowego
    Autorzy:
    Mierzwa-Hersztek, M.
    Gondek, K.
    Kopeć, M.
    Ozimek, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/389287.pdf
    Data publikacji:
    2013
    Wydawca:
    Towarzystwo Chemii i Inżynierii Ekologicznej
    Tematy:
    newspaper
    soil
    plants
    trace elements
    papier gazetowy
    gleba
    rośliny
    pierwiastki śladowe
    Opis:
    The research was conducted to determine the content of Cr, Cd, Ni and Pb in soil and plant biomass after application of newspaper waste. The pot experiment was conducted in the years 2010 and 2011 in the greenhouse and included the following objects: NP-0 soil without addition of newspaper, NP-1 the soil with addition of 1 % of newspaper and NP-3 the soil with addition of 3 % of newspaper. Addition of newspaper was calculated relative to the dry weight of the soil material. The study was conducted in pots containing 5.50 kg of air-dried soil material. Two plants were grown in the experiment: spring rape, ‘Felix’ c.v., in the first year and naked oats, ‘Siwek’ c.v., in the second. Rape was collected at the end of the flowering stage (73-day vegetation period), and oats at grain milk stage (75 days of vegetation). After preparation of plant material and soil, content of trace elements was determined by ICP-OES method on a Perkin Elmer Optima 7300DV apparatus. The results were converted to absolute dry weight of the material. Application of newspaper to soil did not increase (except for cadmium) the contents of lead, chromium or nickel in the aboveground parts of the plant. Studied trace elements were accumulated mainly in the plant roots. Roots contained on average from 51 to 82 % more of the test elements in relation to the aboveground parts. Higher amount of newspaper (3 %) added to the soil led to a higher accumulation of studied trace elements in the roots and lower in the plant aboveground parts. The addition of newspaper to the soil caused a reduction in acidity. Newspaper introduced to the soil generally did not increase the total content of trace elements.
    Przeprowadzone badania miały na celu ocenę zawartości Cr, Cd, Ni i Pb w glebie oraz w biomasie roślin po aplikacji papieru gazetowego. Doświadczenie wazonowe prowadzono w latach 2010 i 2011 w hali wegetacyjnej. Doświadczenie obejmowało następujące obiekty: NP-0 – kontrola (gleba bez dodatku papieru gazetowego), NP-1 – gleba z 1 % dodatkiem papieru gazetowego oraz NP-3 – gleba z 3 % dodatkiem papieru gazetowego. Dodatek papieru gazetowego obliczono w stosunku do suchej masy materiału glebowego. Badania prowadzono w wazonach mieszczących 5,50 kg powietrznie suchego materiału glebowego. W doświadczeniu uprawiano dwie rośliny, w pierwszym roku rzepak jary odmiany ‘Feliks’, natomiast w drugim owies nagoziarnisty odmiany ‘Siwek’. Rzepak jary zbierano w końcu fazy kwitnienia (73 dni wegetacji), a owies w fazie dojrzałości mlecznej (75 dni wegetacji). Po odpowiednim przygotowaniu materiału roślinnego i glebowego, zawartość badanych pierwiastków śladowych oznaczono metodą ICP-ŚS na aparacie Perkin Elmer Optima 7300DV, a uzyskane wyniki przeliczono na absolutnie suchą masę materiału. Doglebowa aplikacja papieru gazetowego nie spowodowała zwiększenia zawartości (za wyjątkiem kadmu) ołowiu, chromu i niklu w częściach nadziemnych roślin. Badane pierwiastki śladowe były gromadzone głównie w korzeniach roślin. W stosunku do części nadziemnych roślin korzenie zawierały średnio od 51 % do 82 % więcej badanych pierwiastków. Większy dodatek papieru gazetowego (3 %) do gleby skutkował większą akumulacją badanych pierwiastków śladowych w korzeniach, a mniejszą w częściach nadziemnych roślin. Dodatek papieru gazetowego do gleby spowodował zmniejszenie zakwaszenia. Wprowadzenie do gleby papieru gazetowego na ogół nie wpłynęło na zwiększenie ogólnej zawartości badanych pierwiastków śladowych.
    Źródło:
    Ecological Chemistry and Engineering. A; 2013, 20, 9; 1029-1037
    1898-6188
    2084-4530
    Pojawia się w:
    Ecological Chemistry and Engineering. A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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