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Wyszukujesz frazę "aluminum waste" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Exploitation of industrial solid wastes for preparing zeolite as a value-added product and its kinetics as adsorbent for heavy metal ions
Autorzy:
Abdel-Hameed, Reham Mohamed
Abdel-Aal, Elsayed A.
Farghaly, Fatma E.
Ibrahim, Ibrahim A.
Abdel Khalek, Mohamed A.
Ahmed, Mohamed A.
Abdel-Messih, Micheal F.
Powiązania:
https://bibliotekanauki.pl/articles/1448799.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
zeolite P
aluminium wastes
hydrothermal process
metal ion removal
aluminum waste
Opis:
Aluminum and fumed silica as solid industrial wastes were converted to zeolite NaPas a value-addedproduct without any template. The hydrothermal process was optimized using static autoclave. The crystallization was carried out at 100, 120 and 150°C for 24, 48 and 72 h. The prepared zeolite of Si:Al ratio of 1.2 was characterized using X-ray Diffraction (XRD), Scanning Electron Microscope (SEM) provided with Energy Dispersive Spectroscopy (EDS), Surface Area, Fourier Transmitted Infra-Red (FTIR) and Thermal Analysis (TG-DSC). The crystalline phase was formed at 100°Cafter 72 hours and at 120°C after 48 hours, while it was formed after 24 honlyat 150°C. Increasing temperature and time lead to the conversion of the prismatic gibbsite crystals into plate-like structure of zeolitewhich is then formedcauliflower-like structure.The prepared zeolite was employed as adsorbent for $Ni^{2+}$ and $Cu2+ions from aqueous solution.The kinetic studies of adsorption processes were performed.
Źródło:
Physicochemical Problems of Mineral Processing; 2021, 57, 1; 87-99
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of aluminum phosphide levels in waste fumigants from food shipments following simple immersion treatment
Autorzy:
Wu, G.
Chen, T.
Jia, Y.
Shen, D.
Feng, H.
Long, Y.
Powiązania:
https://bibliotekanauki.pl/articles/207891.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
aluminum phosphide
AIP
waste fumigants
fosforek glinu
odpady fumigantów
Opis:
Increasing concentrations of aluminum phosphide (AlP) in waste fumigants and residues pose a serious threat to human health. This study focused on the effectiveness of the widely used simple immersion treatment for waste fumigants from shipments, which usually have a higher concentration of residual AlP. A field survey of an operational process was conducted followed by a quantitative analysis of the immersion treatment's hydrolytic effect on AlP. Further investigation on the safety of waste fumigants after the immersion treatment was conducted. It was found that the AlP concentration in the waste fumigant varied significantly with the sampling date, ranging from 12.93 +/- 0.67 wt. % to 29.50 +/- 1.18 wt. %. Simple immersion treatment could reduce the concentration of residual AlP in waste fumigants but the hydrolytic effect varied largely ranging from 19.5% to 31.9%. The concentration of residual AlP remained high (9.1-20.1 wt. %) after the immersion treatment. About 3.2-15.2 wt. % of AlP remained in the samples, following an additional 40 days of natural air-drying when phosphine gas release was not detected. The study indicates that conventional simple immersion treatment cannot ensure the complete hydrolysis of AlP from waste fumigants of shipments.
Źródło:
Environment Protection Engineering; 2018, 44, 1; 19-27
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of the fluidized bed boiler for the disposal of the multi-material packaging waste
Autorzy:
Zabagło, J.
Baron, J.
Olek, M.
Kandefer, S.
Żukowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/778017.pdf
Data publikacji:
2010
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
odpady opakowań
unieszkodliwianie termiczne
fluidyzacja
odzysk ciepła
odzysk aluminium
packaging waste
thermal disposal
fluidization
heat recovery and aluminum recovery
Opis:
The paper presents the results of the disposal of packaging waste from two companies: Tetra Pak and Combibloc, carried out in a fluidized bed boiler of rated thermal power 0.5 MW. The material introduced into the fluidized bed boiler underwent thermal and mechanical degradation in a sand bed of the temperature between 750 and 850°C. The process proceeds auto-thermally, without the need of additional fuel. The appropriately chosen fluidization parameters caused the separation of the solid products of combustion from the deposit material. Presence of aluminum, part of it in an un-oxidized form, was confirmed in separated dust. The gaseous products of combustion contained the traces of oxides of nitrogen and sulfur, mainly originating from the remnants of food products contained in the packaging. However, the concentration of these oxides met the requirements of emission standards.
Źródło:
Polish Journal of Chemical Technology; 2010, 12, 4; 19-21
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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