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    Simulation and optimisation of a two-stage/two-pass reverse osmosis system for improved removal of chlorophenol from wastewater

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    Mujtaba_Journal_of_Water_Process_Engineering.pdf (714.5Kb)
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    Publication date
    2018-04
    Author
    Al-Obaidi, Mudhar A.A.R.
    Kara-Zaitri, Chakib
    Mujtaba, Iqbal M.
    Keyword
    Modeling: Optimisation; Multi-stage reverse osmosis; Two-stage/Two-pass design; Water treatment; Chlorophenol removal
    Rights
    © 2018 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
    Peer-Reviewed
    Yes
    
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    Abstract
    Reverse osmosis (RO) has become a common method for treating wastewater and removing several harmful organic compounds because of its relative ease of use and reduced costs. Chlorophenol is a toxic compound for humans and can readily be found in the wastewater of a wide range of industries. Previous research in this area of work has already provided promising results in respect of the performance of an individual spiral wound RO process for removing chlorophenol from wastewater, but the associated removal rates have stayed stubbornly low. The literature has so far confirmed that the efficiency of eliminating chlorophenol from wastewater using a pilot-scale of an individual spiral wound RO process is around 83 %, compared to 97 % for dimethylphenol. This paper explores the potential of an alternative configuration of two-stage/two-pass RO process for improving such low chlorophenol rejection rates via simulation and optimisation. The operational optimisation carried out is enhanced by constraining the total recovery rate to a realistic value by varying the system operating parameters according to the allowable limits of the process. The results indicate that the proposed configuration has the potential to increase the rejection of chlorophenol by 12.4 % while achieving 40 % total water recovery at an energy consumption of 1.949 kWh/m³.
    URI
    http://hdl.handle.net/10454/14644
    Version
    Accepted Manuscript
    Citation
    Al-Obaidi MA, Kara-Zaitri C and Mujtaba IM (2018) Simulation and optimisation of a two-stage/two-pass reverse osmosis system for improved removal of chlorophenol from wastewater. Journal of Water Process Engineering. 22: 131-137.
    Link to publisher’s version
    https://doi.org/10.1016/j.jwpe.2018.01.012
    Type
    Article
    Collections
    Engineering and Informatics Publications

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