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    Impact of high turbidity on reverse osmosis: Evaluation of pretreatment processes

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    Date
    2020
    Author
    Hafiz, Mhd Ammar
    Hawari, Alaa H.
    Yasir, Ahmed T.
    Alfahel, Radwan
    Hassan, Mohammad K.
    Altaee, Ali
    ...show more authors ...show less authors
    Metadata
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    Abstract
    This study evaluates the performance of sand filtration (SF) and ultra-filtration (UF) as pretreat-ment processes for reverse osmosis (RO) for seawater with turbidities of 4.8, 23.2, and 99.7 NTU. For seawater with a turbidity of 4.8 and 23.2 NTU, the average membrane flux and the water recovery rate in the RO process did not improve significantly by pretreating the seawater using SF or UF. However, when the turbidity of seawater was 99.7 NTU, pretreating the seawater with UF improved the average membrane flux and the water recovery rate in the RO process by 5 LMH and 1.7%, respectively. Pretreatment of seawater with a turbidity of 99.7 NTU with UF reduces the specific energy demand and increases the average membrane flux and water recovery rate.
    DOI/handle
    http://dx.doi.org/10.5004/dwt.2020.26476
    http://hdl.handle.net/10576/39392
    Collections
    • Center for Advanced Materials Research [‎1482‎ items ]
    • Civil and Environmental Engineering [‎862‎ items ]

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