Comparative study of NF and RO membranes in the treatment of produced water II

Toxicity removal efficiency

Salem Alzahrani, A. W. Mohammad, Nidal Hilal, Pauzi Abdullah, Othman Jaafar

    Research output: Contribution to journalArticle

    Abstract

    This study compared the filtration of produced water using two new and highly hydrophilic NF and RO membranes to assess toxicity removal efficiency in pre- and post-filtration samples for reuse as indirect potable water. The toxicity test was conducted using marine luminescent bacterium Vibrio fischeri to monitor changes in the level of light emission during exposure to unknown toxic substances present in the tested pre- and post-filtration samples of produced water. The results show that the quality of water obtained using the NF membrane was toxic at an effective concentration of 13.65% (EC50). However, the performance of NF membrane in rejecting 48% of total organic carbon indicates that it has high potential for use as a pretreatment for the RO membrane in treating produced water because this configuration will decrease the rate of fouling by organics. Toxicity test analysis further revealed that the RO-treated produced water was free of toxicity, whereby 100% of the effective concentration (EC50) caused no effects when exposed to V. fischeri. Therefore, converting produced water from a pollution source into a new water resource has been conclusively shown to be readily achievable, especially through the use of a combined membrane system rather than a single membrane.

    Original languageEnglish (US)
    Pages (from-to)27-32
    Number of pages6
    JournalDesalination
    Volume315
    DOIs
    StatePublished - Apr 5 2013

    Fingerprint

    Toxicity
    comparative study
    membrane
    toxicity
    Membranes
    Poisons
    toxicity test
    water
    toxic substance
    Light emission
    Organic carbon
    Fouling
    pollutant source
    Water resources
    fouling
    Potable water
    Drinking Water
    total organic carbon
    removal
    Produced Water

    Keywords

    • Hydrophilic membrane
    • Produced water
    • Toxicity
    • Wastewater reuse

    ASJC Scopus subject areas

    • Chemistry(all)
    • Chemical Engineering(all)
    • Materials Science(all)
    • Water Science and Technology
    • Mechanical Engineering

    Cite this

    Comparative study of NF and RO membranes in the treatment of produced water II : Toxicity removal efficiency. / Alzahrani, Salem; Mohammad, A. W.; Hilal, Nidal; Abdullah, Pauzi; Jaafar, Othman.

    In: Desalination, Vol. 315, 05.04.2013, p. 27-32.

    Research output: Contribution to journalArticle

    Alzahrani, Salem ; Mohammad, A. W. ; Hilal, Nidal ; Abdullah, Pauzi ; Jaafar, Othman. / Comparative study of NF and RO membranes in the treatment of produced water II : Toxicity removal efficiency. In: Desalination. 2013 ; Vol. 315. pp. 27-32.
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