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    Wyświetlanie 1-9 z 9
    Tytuł:
    Laccase immobilized on mesoporous silica supports as an efficient system for wastewater bioremediation
    Autorzy:
    Mureseanu, M.
    Trandafir, I.
    Babeanu, C.
    Pârvulescu, V.
    Paun, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/207522.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    aromatic hydrocarbons
    bioremediation
    enzymes
    węglowodory aromatyczne
    bioremediacja
    enzymy
    Opis:
    The feasibility of using laccase from Trametes versicolor for degradation of aromatic hydrocar-bons has been investigated. In the experiments, benzo[a]pyrene (BaP) was used. Laccase was immobilized onto mesoporous micelle-templated silica such as Santa Barbara Amorphous (SBA-15) and hexagonal mesoporous silica (HMS) as well as corresponding amino-functionalized supports. The best results were obtained for SBA-15 mesoporous silica however the HMS support could be as well considered for this type of application. The reusability of laccase immobilized into both silica supports was tested for five reaction cycles and the conversion reached about 70% of the initial value.
    Źródło:
    Environment Protection Engineering; 2016, 42, 2; 81-95
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Growth of indigenous bacteria Vibrio alginolyticus and Dietzia sp. isolated from the east coast of Algeria in the presence of monoaromatic hydrocarbons
    Autorzy:
    Feknous, Nesrine
    Branes, Zidane
    Batisson, Isabelle
    Amblard, Christian
    Powiązania:
    https://bibliotekanauki.pl/articles/208293.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    Vibrio alginolyticus
    Dietzia sp.
    monoaromatic hydrocarbons
    Algeria
    węglowodory monoaromatyczne
    Algieria
    Opis:
    East coast of Algeria suffers from several types of pollution, mainly hydrocarbons. The hydrocarbon-based bacteria of the littoral were investigated. 53 indigenous strains were isolated, identified according to morphological and biochemical nature. Dietzia sp. CNJ898 PLO4 and Vibrio alginolyticus PB-WC 11099 were selected for growth tests in the presence of monoaromatic hydrocarbons as a sole source of carbon and energy and total hydrocarbons at the end of growth. The results showed that both strains used monoaromatics to grow. The total hydrocarbons determined after growth showed that all monoaromatics were biodegraded with different rates. The maximum rate was obtained with Dietzia sp. in the presence of xylene with 4.33 mg C/dm3 at the end of the process, followed by toluene with a level of 5.07 mg C/dm3 nd 5.60 mg C/dm3 in the presence of Vibrio alginolyticus. The lowest degradation rate was obtained in the presence of benzene with Dietzia sp. with 15 mg C/dm3 compared to the control, which was 27 mg C/dm3 at the beginning of growth. The results obtained showed that both selected strains assimilated the monoaromatics tested and could be used for the bioremediation of the polluted littoral.
    Źródło:
    Environment Protection Engineering; 2019, 45, 3; 127-137
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A study of migration of polycyclic aromatic hydrocarbons in a sewage sludge-soil system
    Autorzy:
    Włóka, D.
    Kacprzak, M.
    Rosikoń, K.
    Fijałkowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/207205.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    sewage sludge
    polycyclic aromatic hydrocarbons
    soils
    PAHs
    osady ściekowe
    wielopierścieniowe węglowodory aromatyczne
    gleba
    WWA
    Opis:
    Sewage sludge can be used as a fertilizer in agricultural production. However frequent occurrence of dangerous contaminants such as polycyclic aromatic hydrocarbons (PAHs) due to their toxic potential, makes this technology controversial. The persistence and migration ability of PAHs in the sewage sludge-soil system was investigated. The results show that sewage sludge applications may cause an increase in migration of some marked compounds in the soil profile. Therefore it is important to perform a close monitoring of PAHs content during the sewage sludge fertilization procedure.
    Źródło:
    Environment Protection Engineering; 2013, 39, 2; 115-124
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Adsorbent filters for removing polycyclic aromatic hydrocarbons from the atmosphere
    Autorzy:
    Khan, Abdul Muqeet
    Imran, Muhammad
    Hashmi, Abu Saeed
    Shehzad, Wasim
    Abbas, Mateen
    Powiązania:
    https://bibliotekanauki.pl/articles/24201031.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    polycyclic aromatic hydrocarbons
    PAHs
    electrostatic precipitation
    adsorption
    Pakistan
    wielopierścieniowe węglowodory aromatyczne
    WWA
    filtr elektrostatyczny
    adsorpcja
    Opis:
    Indoor activities involving cooking and warming, outdoor sources, smoking, and candle and in-cense burning may introduce a massive portion of polycyclic fragrant hydrocarbons. These are well known for their mutagenicity and carcinogenicity and are omnipresent in urban situations as a result of the combustion of fuel. Due to small particle size, penetration has been suspected to be one major source of indoor polycyclic aromatic hydrocarbons. In the current study, the manufacturing of three types of filters (electrostatic charge-based, pomegranate peel biochar-based, and birds’ feathers-based) was carried out. Their efficiency was tested to remove molecules bounded PAHs and also other geno-toxic compounds associated with these particles. The electrostatic filter was more efficient (27.42%) than pomegranate peel-based and birds’ feathers-based filters (13.86% and 8.32%, respectively). The carcinogenetic effects of PAHs emitted from outdoor and indoor pollutants can be reduced using these kinds of filters.
    Źródło:
    Environment Protection Engineering; 2023, 49, 2; 19--27
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Unconventional yeast in the degradation of hydrocarbons in contaminated soil
    Autorzy:
    Krzyśko-Łupicka, T.
    Kręcidło, Ł.
    Powiązania:
    https://bibliotekanauki.pl/articles/207397.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    chemical analysis
    hydrocarbons
    soil pollution
    yeast
    petroleum
    analiza chemiczna
    węglowodory
    zanieczyszczenie gleby
    drożdże
    ropa naftowa
    Opis:
    The influence of Yarrowia lipolytica inoculum on biodegradation of hydrocarbons, and changes in microbiota composition in the soil contaminated with petroleum have been investigated. The material under study was contaminated clay soil, containing petroleum-derived substances at approximately 17 000 [mg/kg d. m.]. Microbiological analysis was carried out by the cultivation method and the content of individual hydrocarbons (n-aliphatic, BTEX and PAHs) was determined by the GC/MS method. The largest decrease of oil-derived substances, versus the control sample, was recorded at the beginning of the process. During the first 30 days, the yeast inoculation caused most effectively removal of n-aliphatic hydrocarbons and PAHs (approximately 80% reduction), however, the content of BTEX increased nearly three times. After 60 days of the process, PAHs concentration further decreased (by 40%), concentration of n-aliphatic hydrocarbons decreased a little, however the content of BTEX increased by 10%, compared to the initial concentration. Stimulating the biodegradation process with the yeast inoculum influenced the increase of the bacteria count, mainly Gram-positive, with simultaneous decrease of fungi number.
    Źródło:
    Environment Protection Engineering; 2018, 44, 2; 87-99
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Contamination of soils with polycyclic aromatic hydrocarbons near petrol stations in the city of Kielce
    Autorzy:
    Rabajczyk, A.
    Świercz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/208257.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    aromatic hydrocarbons
    PAHs
    petrol station
    soil pollution
    Kielce
    węglowodory aromatyczne
    WWA
    stacja paliw
    zanieczyszczenie gleby
    Opis:
    Petrochemical-derived products may enter the soil with rainwater, sewage, and during equipment failures. Due to their physicochemical properties, they cause a threat to the environment and change the properties of engineering-geological land. In the study, samples of soil originating from the vicinity of 20 gas stations in the city of Kielce have been examined. The following soil parameters were determined: pH, Hh, exchangeable cations, content of CaCO3, Corg and PAH. The amount of PAHs and their composition varied depending on numerous factors such as the soil quality as well as location and degree of exploitation of petrol stations.
    Źródło:
    Environment Protection Engineering; 2018, 44, 2; 101-115
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Indirect effect of made grounds on the aquatic flora and fauna
    Autorzy:
    Dudziak, M.
    Kopańska, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/207983.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    Lemna minor
    Allivibrio fischeri
    Daphnia magna
    aromatic hydrocarbons
    heavy metals
    metallurgical slags
    żużel metalurgiczny
    węglowodory aromatyczne
    metale ciężkie
    Opis:
    The presence of made grounds containing industrial waste materials in the natural environment presents a potential ecological threat. Therefore, in the present study we examined the indirect effects of selected made grounds on the aquatic flora and fauna. The subject of the study were aqueous extracts from made grounds containing metallurgical slags and their effect on the survival of the crustacean daphnia (Daphnia magna) and the inhibition of growth of the plant duckweed (Lemna minor). Due to the fact that duckweed is also used for phytoremediation, the solution after the contact with the plant was assessed for changes of toxicity using the toxicological enzymatic bioassay employing bacteria (Allivibrio fischeri). It was found that the extracts of made grounds adversely affect both the survival of the crustaceans and the growth of plants, however, despite the inhibition of the growth of duckweed it has the ability to phytoremediate contaminants present in the made grounds.
    Źródło:
    Environment Protection Engineering; 2017, 43, 2; 15-24
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    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:
    Kinetics of degradation of perchloroethylene under ultrasonic irradiation and photooxidation in aqueous solution
    Autorzy:
    Kargar, M.
    Nabizadeh, R.
    Naddafi, K.
    Nasseri, S.
    Mesdaghinia, A.
    Mahvi, A. H.
    Alimohammadi, M.
    Nazmara, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/206938.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    związki organiczne
    chromatografia gazowa
    napromieniowanie
    fotooksydacja
    chlorowane węglowodory alifatyczne
    kinetyka degradacji
    czterochlorek etylenu
    czterochloroetylen
    per
    tetrachloroeten
    perchloroetylen
    sonoliza
    napromieniowanie ultradźwiękowe
    organic compounds
    gas chromatography
    irradiation
    photooxidation
    chlorinated aliphatic hydrocarbons
    kinetics of degradation
    perchloroethylene
    tetrachloroethylene
    PCE
    sonolysis
    ultrasound irradiation
    Opis:
    Sonolysis and photodegradation of various compounds such as chlorinated aliphatic hydrocarbons are the recent advanced oxidation processes. Perchloroethylene PCE is one of these compounds mainly used as a solvent and degreaser. In this work, elimination of perchloroethylene in aqueous solution by ultrasonic irradiation and photooxidation by UVC were investigated. Head space gas chromatography with FID detector was used for analyses of PCE. Results showed that PCE could be effectively and rapidly degraded by ultrasonic irradiation, photooxidation by UVC and combination of these methods. The order of studied reactions for degradation PCE has been determined.
    Źródło:
    Environment Protection Engineering; 2013, 39, 4; 29-38
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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