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    Sustainable Hybrid System For Simultaneous Desalting Of Liquid Fertilizer And Fuel Generation

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    Sustainable Hybrid System For Simultaneous Desalting Of Liquid Fertilizer And Fuel Generation.pdf (1.396Mb)
    Date
    2020
    Author
    Zavahir, Fathima Sifani
    ElMakki, Tasneem
    Gulied, Mona
    Logade, Khulood
    Kakosimos, Konstantinos
    Han, Dong Suk
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    Abstract
    The constant utilization of hydrocarbon-based fuels such as petroleum, coal, and natural Gas has resulted in the detection of high concentration levels of sulfur containing gases in the atmosphere of many countries, including Qatar. Among those potential air pollutants, the rising concentrations of H2S and SO2 are of serious concern. In this work, sulfur-based seed solutions (SBSSs) such as sulfite or sulfide solutions are made by purging sulfur-containing gases released from industry into alkaline solutions. These SBSS solutions are simultaneously utilized towards the production of renewable hydrogen energy via a photoelectrochemical (PEC) process, and are used as draw solutions (DS) to produce diluted fertilizer water by a forward osmosis (FO) desalination process for agricultural irrigation purposes. The continuous bench scale of the integrated PEC-FDFO system was successfully demonstrated for simultaneous hydrogen production and dilution of SBSS DS. The experimental results showed that the reduction potential of SBSS DS in the PEC cell changes with variation of SBSS DS concentration and pH. This resulted in the continuous oxidation of sulfite into sulfate and led to more hydrogen production. Moreover, FDFO process exhibited high percentage of water recovery and DS dilution up to 80% and 68% at high SBSS DS concentration, respectively. In binary mixture of SBSS DS, increasing the concentration of ammonium sulfate (NH4)2SO4 led to high water flux to about 42%. The outcomes of this experimental study showed a successful practical continuous integrated system toward hydrogen production and fertigation
    URI
    https://doi.org/10.29117/quarfe.2020.0032
    DOI/handle
    http://hdl.handle.net/10576/16567
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    • Theme 1: Energy, Environment & Resource Sustainability [‎108‎ items ]

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