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Wyszukujesz frazę "industrial ash" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-6 z 6
    Tytuł:
    The influence of thermal processing of sewage sludge on the usage properties of the formed ash
    Autorzy:
    Gorazda, K.
    Wzorek, Z.
    Jodko, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/778645.pdf
    Data publikacji:
    2007
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    odzysk fosforu
    właściwości popiołów
    ługowanie popiołu
    popiół przemysłowy
    phosphorus recovery
    ash properties
    ash extraction
    industrial ash
    Opis:
    The influence of sewage sludge incineration temperature on the formed ash constitution was examined. The comparative extraction tests of two differently prepared ashes (laboratory and industrial) were carried out in order to verify if the parameters of sewage sludge incineration influence the extraction selectivity of phosphorus compounds. The laboratory ash (A(lab)) were prepared from sewage sludge incinerated at 950°C on a laboratory scale while the industrial ash (A(ind)) comes from thermal utilization system of the sewage sludge at the Gdynia Sewage Treatment Plant, which uses fluid-bed furnace incineration at 850 - 900°C. It was found that the temperature and the conditions of the sewage sludge incineration process have an effect on the usage properties of the formed ash. Despite the twofold lower Fe content in the industrial ash than that of the laboratory one, its content in extracts after phosphoric acid leaching is 4.7 times higher. The lower values of PO4^3- leaching degree from the industrial ash than the laboratory ash were observed, as well as a decrease of extraction productivity.
    Źródło:
    Polish Journal of Chemical Technology; 2007, 9, 4; 21-27
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Separation and Immobilization of Vanadium from Industrial Fly Ash as an Insoluble Inorganic Pigmen
    Autorzy:
    Kwolek, P.
    Czubajewski, K.
    Wojnicki, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/351844.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    recovery
    inorganic pigments
    solubility
    vanadium
    bismuth
    immobilisation
    Opis:
    It has been shown that the precipitation of bismuth orthovanadate from a fly ash leachate is a promising method of vanadium recovery. BiVO4 obtained after appropriate heat treatment can be sold as a pigment. The yield of recovery of solubilised vanadium is equal to 68% and the precipitate is free from nickel impurity. The precipitate is insoluble in the solutions with pH ≥ 3. In more acidic media the solubility of precipitate increases with the decreasing pH. The solubility of the precipitate increases also with the increasing concentration of chloride ions.
    Źródło:
    Archives of Metallurgy and Materials; 2020, 65, 2; 901-909
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The utilisation of fly ash in CO2 mineral carbonation
    Autorzy:
    Jaschik, J.
    Jaschik, M.
    Warmuziński, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/952688.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    mineral carbonation
    sequestration of CO2
    industrial waste
    fly ash
    dissolution
    sekwestracja CO2
    odpady przemysłowe
    popiół lotny
    rozpuszczanie
    Opis:
    The fixation of CO2 in the form of inorganic carbonates, also known as mineral carbonation, is an interesting option for the removal of carbon dioxide from various gas streams. The captured CO2 is reacted with metal-oxide bearing materials, usually naturally occurring minerals. The alkaline industrial waste, such as fly ash can also be considered as a source of calcium or magnesium. In the present study the solubility of fly ash from conventional pulverised hard coal fired boilers, with and without desulphurisation products, and fly ash from lignite fluidised bed combustion, generated by Polish power stations was analysed. The principal objective was to assess the potential of fly ash used as a reactant in the process of mineral carbonation. Experimental were done in a 1 dm 3 reactor equipped with a heating jacket and a stirrer. The rate of dissolution in water and in acid solutions was measured at various temperatures (20 – 80ºC), waste-to-solvent ratios (1:100 – 1:4) and stirrer speeds (300 – 1100 min -1). Results clearly show that fluidised lignite fly ash has the highest potential for carbonation due to its high content of free CaO and fast kinetics of dissolution, and can be employed in mineral carbonation of CO2.
    Źródło:
    Chemical and Process Engineering; 2016, 37, 1; 29-39
    0208-6425
    2300-1925
    Pojawia się w:
    Chemical and Process Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative studies of the leaf morphology and structure of white ash Fraxinus americana L. and London plane tree Platanus acerifolia Willd growing in polluted area
    Autorzy:
    Dineva, S B
    Powiązania:
    https://bibliotekanauki.pl/articles/41005.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    white ash
    Fraxinus americana
    London planetree
    Platanus acerifolia
    leaf
    industrial area
    industrial pollution
    heavy polluted industrial area
    air pollution
    leaf morphology
    leaf structure
    leaf anatomy
    environment pollution
    Opis:
    The leaf blades of white ash Fraxinus americana L. and London plane tree Platanus acerifolia Willd. growing in heavy polluted industrial areas were studied for morphological and anatomical changes developed under the influence of industrial contamination. The aim of the investigation was to determine and compare the influences of air polluted with SO2, NxOx, Pb, As, Zn, Cu etc. on the morphology and the structure of the leaves of these deciduous trees. Both species are tolerant to environmental changes but with different environmental characteristics and tolerances and they are widely used for planting. Under polluted conditions, the trees strengthened the anatomic xeromorphic characteristics of their leaf structures, which gave them the opportunity to mitigate the stressful conditions of the environment. The observed responses are regarded as adaptive and compensative to the adverse effects of air pollution.
    Źródło:
    Dendrobiology; 2004, 52; 3-8
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Semi-automatic geo-processing procedure for the vulnerability mapping of industrial facilities in areas with the potential volcanic ash fallout
    Autorzy:
    Ancione, G.
    Milazzo, M. F.
    Salzano, E.
    Maschio, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/2069382.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    Na-Tech risk
    vulnerability mapping
    threshold value
    ash fallout
    exceedance probability
    geoprocessing
    Opis:
    Following recent severe natural events, attention has been focused on industrial installations located in areas prone to natural hazards. This work concerns the study of volcanic Na-Tech events (i.e. technological risks triggered by natural causes) and aims at defining a procedure for the representation of the vulnerability of industrial facilities in areas with the potential volcanic ash fallout by means a Geographical Information System (GIS). Here, we focused on the construction of a semi-automatic procedure for the vulnerability mapping for cases where input data is very limited; it is based on the use of a specific tool named ModelBuilder of the ArcGIS software.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2013, 4, 1; 1--8
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Chemical Composition of Industrial Wood Waste and the Possibility of its Management
    Autorzy:
    Malinowski, Ryszard
    Meller, Edward
    Ochman, Ireneusz
    Malinowska, Katarzyna
    Figiel-Kroczyńska, Monika
    Powiązania:
    https://bibliotekanauki.pl/articles/27314837.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    wood waste
    biomass
    ash
    chemical composition
    fertilizer value
    agricultural use
    soil reclamation
    odpady drzewne
    biomasa
    popiół
    skład chemiczny
    wartość nawozowa
    wykorzystanie rolnicze
    rekultywacja gleb
    Opis:
    Organic wood waste (sawdust, shavings, pieces of wood and bark), is widely used as a secondary raw material and, after composting, for soil fertilisation and substrate production in agriculture, horticulture, forestry, urban landscaping and rehabilitation of degraded land. However, problematic to process is wood waste that is very dirty with soil. They have limited calorific value and cannot be used in the R10 recovery process of land treatment benefiting agriculture or improving the environment. However, the morphological composition of these wastes indicates that they have good properties and can be used for agricultural use and for the reclamation of degraded land. The research involved wood waste with the code 03 01 99 (other unspecified waste from wood processing and the production of panels and furniture) generated during the preparation of deciduous tree logs for the veneer production process, and ashes from the burning of wood waste generated in the veneer production factory. The aim of the study was to assess the chemical composition of these wastes and the possibility of their agricultural use. In the samples of wood waste and ashes there was determined: pH; chlorines content; conductivity; hydrolytic acidity; content of micro and macroelements and heavy metals. The morphological composition of the waste is dominated by sawdust, with a smaller share of shavings, bark and earth parts, and a small addition of pieces of wood of various sizes. It is rich in easily bioavailble as well as total macroelements and is not contaminated with heavy metals. Analyzed wood waste has deacidifying properties, high sorption and buffering capacity. Studies have shown that the wood waste produced at the veneer factory, can be used as an organic fertiliser, a component of other organic fertilisers, for soil mulching, horticultural substrate and soil and land reclamation.The ash obtained from burning wood is strongly alkaline and rich in alkaline cations, mainly Ca, Mg and K. It is not contaminated with heavy metals. The ash can be used for soil deacidification and fertilization, especially for soil reclamation. The waste from the heap can be used as an organic fertilizer, a component of other organic fertilizers, for mulching soils and as a gardening substrate. However, the possibilities for non-agricultural (e.g.: for the production of pallet, particle board) use are limited due to the high proportion of earthy parts.
    Źródło:
    Civil and Environmental Engineering Reports; 2022, 32, 4; 167--183
    2080-5187
    2450-8594
    Pojawia się w:
    Civil and Environmental Engineering Reports
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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