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    Wyświetlanie 1-4 z 4
    Tytuł:
    Optimal design parameters for hydraulic vertical fl occulation in the package surface water treatment plant
    Autorzy:
    Ghawi, A.H.
    Powiązania:
    https://bibliotekanauki.pl/articles/887486.pdf
    Data publikacji:
    2018
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Źródło:
    Scientific Review Engineering and Environmental Sciences; 2018, 27, 4[82]
    1732-9353
    Pojawia się w:
    Scientific Review Engineering and Environmental Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design of Biofilter Odor Removal System for Conventional Wastewater Treatment Plant
    Autorzy:
    Ghawi, A. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/124772.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    biofilter
    wastewater
    hydrogen sulfide
    odor
    Opis:
    Control of odor removal and air pollution in wastewater treatment plants has become critical because of the negative impacts of invasive pollutants that are no longer limited to the working environment of sewage treatment plants, but extend to nearby residential areas when appropriate weather conditions are present. Residents of the city of Al-Nasiriyah in Iraq suffer from the the foul odors from the Jazeera Wastewater Treatment Plant in the city of Al-Nasiriyah, located in the province of Dhi Qar in southern Iraq. Therefore, efforts must be intensified to reduce the risks they pose to the ecosystem and the serious damage to human health. In this study, a biofilter system was designed to remove the odors emitted (hydrogen sulfide and ammonia gas) from the conventional activated sludge Al-Nasiriyah-Jazeera wastewater treatment plant. The biofilter odor removal system is designed for inlet screw pumping station, screening station, aerated grit chamber and parshall flume inlet. The result of the design of the biofilters, which meets the environmental requirements of Iraq according to the law of environmental protection No. 27 of 2009 and its instructions No. 3 of 2011 was the inlet screw pumping station (volume of buildings to be treated – 400 m3, number of changes per hour >5 n/h, design flow rate to be captured and treated – 2000 m3/h, H2S removal efficiency >98%, volume of substrate media – 24 m3, height of surface media – 1.4 m, and overall dimension (length – 8.9 m, height – 2.27 m, width – 2.13 m)), as well as the preliminary treatments screening station, aerated grit chamber and parshall flume inlet (volume of buildings to be treated (each biofilter) – 400 m3, number of changes per hour – 12 n/h, design flow rate to be captured and treated (each biofilter) – 5000 m3/h, H2S removal efficiency >98%, volume of substrate media – 60 m3, height of surface media – 1.4 m, and overall dimension (length 10.6 m, height 2.27 m, width m 2.13 m)).
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 4; 7-15
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study on the Development of Household Wastewater Treatment Unit
    Autorzy:
    Ghawi, A. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/125287.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    septic tank
    bioreactor
    wastewater
    BOD
    COD
    households
    Opis:
    The cities of Iraq in general and the city of Al Diwaniyah in particular are characterized by the fact that the majority of households use septic tank to dispose of sewage, leading to contamination of ground and surface water and a disturbance to the environment. The objective of this study is to protect the water and soil sources from the risk of pollution, eliminate the process of perfusion and thus, reduce costs, maintain public health, as well as design and implement the proposed purification unit for domestic wastewater treatment. A domestic wastewater treatment unit has been improved to meet the standard specifications for the quality of the effluent wastewater. In this study, a compact non-electric sewage treatment unit was improved and implemented. Treatment is based on an effective modern biological purification process. Experimental verification and analysis of results were performed to demonstrate the improvement of physical and chemical parameters. The performance of the septic tanks-bioreactor gave satisfactory results. The removal efficiencies of Total Biochemical Oxygen Demand (BOD), Total Chemical Oxygen Demand (COD), NH4-N, Total Nitrogen and Total Suspended Solid (TSS) were 96.9%, 84.6%, 78.8%, 79.9% and 95.3%, respectively.
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 2; 63-71
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Treatment of Medical Wastewater by Moving Bed Bioreactor System
    Autorzy:
    Jasem, Y. I.
    Jumaha, G. F.
    Ghawi, A. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/123105.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    MBBR
    BOD removal
    COD removal
    SS removal
    Opis:
    The hospital wastewater is considered as a complex mixture, populated with microbial and a variety of toxic substances. The performance of EEC USA moving bed biofilm reactor (MBBR) with polyethylene media as biofilm support carrier, packaged wastewater treatment plant with a capacity of 250 m(3)/day was evaluated for treating the wastewater from Al-Batul hospital of Baquba city in Iraq in terms of the organic matter and suspended solid removal, along with nitrification and microbial growth for medical wastewater. The test results showed that the average removal efficiency of biochemical oxygen demand (BOD5), chemical oxygen demand (COD), and total suspended solid (TSS) were 79.5%, 74.5%, and 78%, respectively. The system offers good nitrification with the efficiency of 79%. The system shows a weak formation of biomass on carriers, only 1.93 g TSS/m(2) of media, corresponding to 32% of the suspended biomass in the reactor.
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 3; 135-140
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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