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    Wyświetlanie 1-2 z 2
    Tytuł:
    Elaboration and Physico-Mechanical Characterization of a New Eco-Mortar Composite Based on Magnetized Water and Fly Ash
    Autorzy:
    Mghaiouini, Redouane
    Abderrazzak, Graich
    Benzbiria, Nisrine
    Elaoud, Anis
    Garmim, Toufik
    Belghiti, Mohamed E.
    Hozayn, Mahmoud
    Monkade, Mohamade
    El Bouari, Abdeslam
    Powiązania:
    https://bibliotekanauki.pl/articles/124476.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    treated water
    electromagnetic field
    fly ash
    compressive strength
    bending strength
    composite mortar
    XRD
    SEM
    Opis:
    This study examines the flexural strength and compressive strength of the mortars, which were mixed with the electromagnetic field treated water (EMFTW) and contained fly ash. EMFTW was obtained by passing the tap water through an electromagnetic field. The test variable was the fly ash content in place of cement and the water treated with EMFTW in place of the tap water. The results show that the flexural and compressive strength of the mortar samples mixed with MFTW is 12.56% and 15.8% higher than that prepared with the tap water, respectively. It was also found that the magnetized water improves the resistance to bending and compression by 12.67% and 4.35% to that prepared with the tap water and 10% fly ash instead of cement.
    Źródło:
    Journal of Ecological Engineering; 2020, 21, 4; 245-254
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effluent Quality Assessment of Selected Wastewater Treatment Plant in Jordan for Irrigation Purposes: Water Quality Index Approach
    Autorzy:
    Ibrahim, Mohamad Najib
    Powiązania:
    https://bibliotekanauki.pl/articles/124774.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    water quality index
    treated effluent
    irrigation water
    wastewater reuse
    Jordan
    Opis:
    The use of treated wastewater for irrigation purposes will be an essential component for sustainable water resources management, especially in the water-stressed countries as in Jordan. In this context, an attempt has been made to determine the suitability of effluent quality of selected wastewater treatment plants in Jordan for the irrigation purposes based on weighted arithmetic water quality index (WQI) approach, according to the Jordanian standards for reclaimed domestic wastewater. The effluent wastewater quality records from 22 wastewater treatment plants within a one-year-monitoring period from March 2015 to February 2016 were used. Fifteen physical, chemical, and microbiological parameters were selected to calculate WQI. According to the WQI scale classification, most of the selected wastewater treatment plants were not in full compliance with the Jordanian standards for the reclaimed domestic wastewater regarding the direct reuse of treated wastewater for the irrigation purposes. Therefore, for category A (i.e., vegetables that are normally eaten cooked, parking areas, sides of roads inside cities, and playgrounds), one plant is classified in the 'Excellent water' class and six plants as a "Good water" class. For category B (i.e., irrigation of fruit trees, green areas, and sides of roads outside the cities), one plant is classified in the 'Excellent water' class and twelve plants as a "Good water" class. For category C (i.e., irrigation of industrial crops, field crops, and forest trees), one plant is classified in the 'Excellent water' class and fifteen plants as a "Good water" class. The effective weight calculations identified that E. coli is considered the most effective parameter in the WQI values in category A, and to a lesser extent, SAR, pH, BOD, and NO3−. For category B, the SAR, pH and E. coli parameters are considered the most effective parameters in the WQI values. In turn, for category C, the SAR, pH, and PO4–3 parameters are considered the most effective parameters in the WQI values. Thus, these parameters based on category are considered as the main parameters which degrade the effluent wastewater quality for irrigation purposes. The results of this study are beneficial for the water managers and policymakers for proper actions on water resources and agricultural management in Jordan.
    Źródło:
    Journal of Ecological Engineering; 2019, 20, 10; 206-216
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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