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    Economic removal of chlorophenol from wastewater using multi-stage spiral-wound reverse osmosis process: simulation and optimisation

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    Mujtaba_et_al_JWPE.pdf (770.6Kb)
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    Publication date
    2019-10
    Author
    Al-Obaidi, Mudhar A.A.R.
    Kara-Zaitri, Chakib
    Mujtaba, Iqbal M.
    Keyword
    Multi-stage RO process
    Modelling
    Simulation
    Optimisation
    Chlorophenol rejection
    Specific energy consumption
    Cost estimation
    Rights
    © 2019 Elsevier Ltd. All rights reserved. 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
    
    Metadata
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    Abstract
    The successful use of Reverse Osmosis (RO) process has increased significantly in water desalination, water treatment and food processing applications. In this work, the economic feasibility of a multi-stage RO process including both retentate and permeate reprocessing for the removal of chlorophenol from wastewater is explored using simulation and optimisation studies. Firstly, a mathematical model of the process is developed based on the solution diffusion model, which was validated using experimental chlorophenol removal from the literature, is combined with several appropriate cost functions to form a full model package. Secondly, for a better understanding of the interactions between the different parameters on the economic performance of the process, a detailed process simulation is carried out. Finally, a multi-objective optimisation framework based on Non-Linear Programming (NLP) problem is developed for minimising the product unit cost, the total annualised cost, the specific energy consumption together with optimising the feed pressure and feed flow rate for an acceptable level of chlorophenol rejection and total water recovery rate. The results clearly show that the removal of chlorophenol can reach 98.8% at a cost of approximately 0.21 $/m³.
    URI
    http://hdl.handle.net/10454/17033
    Version
    Accepted manuscript
    Citation
    Al-Obaidi MA, Kara-Zaitri C and Mujtaba IM (2019) Economic removal of chlorophenol from wastewater using multi-stage spiral-wound reverse osmosis process: simulation and optimisation. Journal of Water Process Engineering. 31: 100829.
    Link to publisher’s version
    https://doi.org/10.1016/j.jwpe.2019.100829
    Type
    Article
    Collections
    Engineering and Informatics Publications

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