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    Tytuł:
    Adsorption of Phenol from Water on Natural Minerals
    Autorzy:
    Puszkarewicz, A.
    Kaleta, J.
    Papciak, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/123900.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    phenol
    adsorption
    attapulgite
    alganite
    Opis:
    Phenol and its derivatives (chlorophenol, nitrophenol, methylphenol, cresol etc.) belong to highly toxic contaminants, and their occurrence in industrial and municipal sewage as well as in groundwater carries a high threat to the environment and human health. Elimination of such contaminants is one of the major challenges in solving the global environmental problems. Implementation of pro-ecological methods of water treatment is associated with the use of natural, cheap and unprocessed materials, with the possibility of their repeated use. The article presents the results of the studies on the use of powdery adsorbents for the removal of phenol from aqueous solutions. The following natural minerals were used: attapulgite – Abso'net Superior Special (ASS) and alganite – Abso'net Multisorb (AM). Tests were performed under non-flowing conditions, in series, depending on the type and dose of adsorbents. Tests were conducted on a model solution of phenol with the initial concentration of C0 = 20 mg /dm3, at the temp. of 20° C. Alganite mineral (AM) proved to be effective in adsorption of phenol. Maximum adsorption capacity P = 0.21 g/g, was obtained for a dose 10 mg/dm3. Almost complete removal of phenol (99.9%) was obtained for a dose of 500 mg/dm3. For natural attapulgite – Abso'net Superior Special (ASS) the maximum adsorption capacity (at a dose 5 mg/dm3) amounted to P = 0.15 g/g. The efficiency of phenol removal at the level 99% was obtained at a dose of 1000 mg/dm3).
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 6; 132-138
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of Powdery Activated Carbons for Removal Ibuprofen from Water
    Autorzy:
    Puszkarewicz, A.
    Kaleta, J.
    Papciak, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/124366.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    ibuprofen
    adsorption
    powdery activated carbon
    Opis:
    The paper presents the results of studies on the use of adsorptive properties of selected powdered activated carbons (Norit SA Super and Carbopol MB5) for removal of ibuprofen from water. The tests were performed on non-flow conditions, series depending on the type and dose of powdered adsorbents. The research was carried out on a model solution of ibuprofen at initial concentration C0 = 20 mg/dm3, at 20 °C. Froundlich and Langmuir adsorption isotherms were used. Lagergrene kinetic models (PFO) and Ho (PSO) were used to describe adsorption kinetics. Both carbons exhibited a higher affinity for the adsorbent at pH above 7. Norit SA Super was a better adsorbent, for which, the highest adsorption capacity q = 0.448 g/g was achieved with dose D = 35 mg/dm3. The effectiveness of adsorption (decrease of ibuprofen in water) was 78%. The total removal of ibuprofen was obtained for a dose of carbon D = 200 mg/ dm3. With respect to Carbopol, the highest adsorption capacity (q = 0.353 g/g) was achieved at a dose of 30 mg/dm3, resulting in a 53% efficiency. Studies have shown that both tested powdered activated carbons have contributed to effective cleaning of aqueous solutions containing ibuprofen.
    Źródło:
    Journal of Ecological Engineering; 2017, 18, 4; 169-177
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena skuteczności procesu adsorpcji w usuwaniu substancji humusowych z wody
    Evalution of the adsorption process efficiency in removing humic substances from water
    Autorzy:
    Kaleta, J.
    Puszkarewicz, A.
    Papciak, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/401358.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    substancje humusowe
    usuwanie
    proces adsorpcji
    węgle aktywne
    humic substances
    removal
    adsorption process
    activated carbons
    Opis:
    W artykule przedstawiono wyniki badań laboratoryjnych dotyczących możliwości wykorzystania węgli aktywnych produkcji polskiej (WD-ekstra, WG-12, WG-15, AG-5 i DTO) do usuwania substancji humusowych z wody. Celem przeprowadzonych badań było ilościowe sformułowanie procesu adsorpcji, oraz ustalenie wpływu różnych czynników na jego przebieg. Nakreślone w celu pracy zadania próbowano rozwiązać posługując się modelowymi układami doświadczalnymi. Jako adsorptyw stosowano roztwór modelowy zawierający substancje humusowe w ilości 20 mg/dm3. Procesy adsorpcji prowadzone w układzie porcjowym najlepiej opisywały izotermy Freundlicha. Na podstawie izoterm wyliczono zdolność adsorpcyjną testowanych węgli aktywnych. Warunki przepływowe realizowano metodą filtracji kolumnowej. Na podstawie uzyskanych wyników sporządzono krzywe przebicia–izoplany, które posłużyły do wyznaczenia pojemności adsorpcyjnych w warunkach przepływowych. Największe wartości pojemności sorpcyjnych wyznaczone zarówno w warunkach nieprzepływowych jak i przepływowych posiadały węgle WD – ekstra (7,71 mg/g) i DTO (7,40 mg/g). Krzywe wyjścia (izoplany) wykorzystano również do określenia strefy przenikania masy (wysokości frontu adsorpcji) oraz do obliczenia prędkości przesuwania się strefy wymiany masy.
    The paper presents the results of laboratory tests on possibility of utilizing active carbons produced in Poland (WD-ekstra, WG-12, WG-15, AG-5 and DTO) for removing humic substances from water. The objective of the tests was to arrive at a quantitative formulation of the adsorption process, as well as determine the effect of various factors on process course. An attempt was made to solve the tasks set in the study purpose using model experimental setups. A model solution with humic substances in the concentration of 20 mg/dm3 was employed. The processes of adsorption conducted in a batch mode were best described by Freundlich isotherms. The adsorption capacity of the tested active carbons was calculated on the basis of the isotherms. The flow conditions were created with columnar filtration method. On the basis of the obtained results, the breakthrough curves, so-called iso-planes, were prepared and served to determine the adsorption capacities in flow conditions. The WD-extra (7.71 mg/g) and DTO (7.40 mg/g) carbons exhibited the highest values of adsorption capacities, as determined in both non-flow and flow conditions. The exit curves (iso-planes) were also utilized to determine the mass penetration zone (the adsorption front height), as well as to calculate the rate of mass-exchange zone advance.
    Źródło:
    Inżynieria Ekologiczna; 2017, 18, 4; 107-115
    2081-139X
    2392-0629
    Pojawia się w:
    Inżynieria Ekologiczna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena przydatności iłołupków bentonitowych do usuwania fenolu z roztworów wodnych
    Assessment of Usability of Bentonite Clays for Removing Phenol from Water Solutions
    Autorzy:
    Kaleta, J.
    Papciak, D.
    Puszkarewicz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1819215.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    przydatność iłołupków
    usuwanie fenolu
    activated carbon
    aqueous solutions
    adsorption
    waste
    Opis:
    The paper presents the results of laboratory testing of the potential use of bentonite clay from Dynowskie Foothills for removing phenol from model water solutions. Both natural clays and those treated with sodium carbonate, hydrochloric and sulfuric acids were used. The paper shows the characteristics of phenols occurring in natural water. The sources of phenols, i.e. household and industrial wastewater as well as municipal landfills and damps are given. The aim of the experiments was to determine a quantitative formulation of the adsorption process, as well as to describe the effect of various factors on the process itself. An attempt was made to solve the tasks using model experimental setups. Model phenol solution, concentration of 20,00 mg/L, prepared using distilled water was applied as an adsorptive. The phenol concentration in model solutions was determined using the linear relationship between the concentration of this compound and the absorbency value at the wavelength of 254 nm. The absorbency value was read with a SHIMADZU UV – 1601 spectophotometer using quartz cuvets with an absorbing layer 10 mm thick. The results obtained in a successive series of experiments performed under static conditions were described using basic izoterm equations i.e. those of Freundlich, Langmuir and BET. Freundlich’s equations best described the process. The adsorption capacity of the active clays tested was calculated on the basis of the isotherms. Natural clay had an adsorptive capacity of 0,74 mg/g, clay modified with hydrochloric acid 2,41 mg/g, clay modified with sulfuric acid 1,83 mg/g and clay modified with sodium carbonate 0,50 mg/g. Dynamic conditions were realised by the column filtration method. The adsorption columns were made of organic glass 32 mm in diameter, the filling height was 750 mm, filtration rate – 12 m/h. Filtration was performed from the top downwards. Filtration lasted each time until the moment of bed exhaustion, i.e. such a point where the concentration in the discharge becomes equal to that of the initial solution. The sorption effectiveness under flow conditions for bentonite clays was 100%. On the basis of the results obtained, the breakthrough curves, the so-called iso-planes, were prepared and served in turn to determine the adsorption capacities under flow conditions. The adsorptive capacities were higher than those determined through static conditions and these were 15,9 mg/g, 19,9 mg/g, 18,8 mg/g and 15,2 mg/g for natural clay, clay modified with hydrochloric acid, clay modified with sulfuric acid and clay modified with sodium carbonate, respectively. The clay modified with sodium hydrochloric acid exhibited the highest values of adsorption capacities, as determined under both static and flow conditions. Modification of samples with hydrochloric and sulfuric acids appeared advantageous for both technological and economic reasons. The exit curves (iso-planes) were used to determine the mass penetration zone (the adsorption front height), as well as to calculate the rate at which the mass-exchange zone advanced. The adsorption front height for the carbons tested was 3–5 times lower than the adsorption bed height, thus confirming the high effectiveness of clays in phenol removal. Despite this considerable superiority of active carbon as sorbent, bentonite clays may be taken into account in designing process systems, especially as insulating materials in relation to active carbon. The array of water conditioning processes to be employed for phenol polluted water should in each case be preceded by detailed and thorough technological studies.
    Źródło:
    Rocznik Ochrona Środowiska; 2013, Tom 15, cz. 3; 2352-2368
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wykorzystanie węgli aktywnych do oczyszczania zaolejonych roztworów wodnych
    Activated carbon usage for purification of water solutions with oil contaminants
    Autorzy:
    Puszkarewicz, A.
    Kaleta, J.
    Papciak, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/297031.pdf
    Data publikacji:
    2009
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    substancje ropopochodne
    koagulacja
    adsorpcja
    węgle aktywne
    oczyszczanie ścieków
    oil substances
    coagulation
    adsorption
    activated carbons
    wastewater treatment
    Opis:
    Zaprezentowano rezultaty badań nad wykorzystaniem adsorpcyjnych właściwości wybranych pylistych węgli aktywnych do usuwania z wody zemulgowanego oleju maszynowego Mixol S metodą koagulacji. W badaniach zastosowano następujące reagenty: pylisty węgiel aktywny Organosorb 200-1 Wi (PWA 1). Organosorb 100-1 (PWA 2) oraz koagulanty podstawowe, tj.: chlorek żelaza(III) FeCl3 6H2O i siarczan(VI) glinu Al2(SO4)3 18H2O. Badania wykonywane były seriami w zależności od dawki pylistego węgla aktywnego (PWA) i rodzaju koagulantów podstawowych. Większą efektywnością w usuwaniu oleju Mixol z wody, przy użyciu obu koagulantów, wykazał się pylisty węgiel aktywny Organosorb 100-1 (PWA 2). Największe, 97% usunięcie oleju (Ck = 12 mg/dm3), przy stężeniu początkowym C0 = 360 mg/dm3, otrzymano dla 150 mg/dm3 Al2(SO4)3 i pylistego węgla aktywnego PWA 2 w dawce 0,2 g/dm3. W świetle przeprowadzonych badań koagulacja wspomagana procesem adsorpcji okazała się skuteczną metodą oczyszczania emulsji olejowych, a sole glinu lepszym koagulantem. Dużą korzyścią z zastosowania węgla aktywnego (czyli połączenia procesów koagulacji i adsorpcji) była lepsza jakość osadów pokoagulacyjnych. Osady uzyskiwane w wyniku prowadzonych testów z koagulantem podstawowym i węglami, w przeciwieństwie do osadów pochodzących tylko z samodzielnie stosowanych koagulantów, były o dużo większej gęstości i mniej uwodnione. Tworzyły szlam, łatwy do usunięcia i możliwy do regeneracji poprzez odwodnienie, wysuszenie i wyprażenie.
    The paper presents the results of research related to removal of oil emulsion (on base of 'Mixol S') from water solution in coagulation process. The selected powdery activated carbons were used as aid reagents by reason of adsorptive properties refer to organic compounds. The research was realized on model emulsion. Carried microscopic observation has showed that oil drops were smaller than 3.0 μm. It testified that objective emulsion could be described as fine-dispersion emulsion. The solutions have pH values in the range 6.5÷7.0. The following reagents were applied in the research tests: powdery activated carbon Organosorb 200-1 Wi (PWA 1), Organosorb 100-1 (PWA 2), as well as basic coagulants - i.e. iron(III) chloride FeCl3 · 6H2O and aluminum sulfate, Al2(SO4)3 · 18H2O. The tests were conducted in series, depending on the dose of powdery activated carbon and the type of basic coagulants. In case of PWA 1 (powder wood carbon) employment, removal of oil from water solution was considerable but not completely satisfactory. Final concentration of oil Mixol in water has amounted to C = 26 mg/dm3. It gets it at dose aluminum D = 90 mg/dm3 and 0.5 g/dm3 active carbon. When both coagulants were used the 'Organosorb 100-1' (PWA 2) powdery activated carbon exhibited higher effectiveness in removal of Mixol oil from water. The highest oil reduction, i.e. 97% (Ck = 12 mg/dm3), from its initial concentration of C0 = 360 mg/dm3, was obtained for 150 mg/dm3 of Al2(SO4)3 and for PWA 2 powdery activated carbon dosed at 0.2 g/dm3. Coagulation assisted by the adsorption process appeared to be a more effective method of water purification from oil emulsions, while aluminum salts were better coagulants. The big advantage of using powdery activated carbon (i.e. the combination of coagulation and adsorption processes), was a better quality of post-coagulation sediments. Unlike the sediments formed from coagulant used alone, the sediments obtained as a result of tests with basic coagulant and carbons had much higher density and contained less water. The sludge formed by the latter was easy to remove and could be regenerated by dewatering, drying and roasting.
    Źródło:
    Inżynieria i Ochrona Środowiska; 2009, 12, 2; 153-161
    1505-3695
    2391-7253
    Pojawia się w:
    Inżynieria i Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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