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dc.contributor.authorAl-Obaidi, Mudhar A.A.R.
dc.contributor.authorKara-Zaitri, Chakib
dc.contributor.authorMujtaba, Iqbal M.
dc.date.accessioned2017-06-20T10:46:17Z
dc.date.available2017-06-20T10:46:17Z
dc.date.issued2018-01
dc.identifier.citationAl-Obaidi MA, Kara-Zaitri C and Mujtaba IM (2018) Optimal reverse osmosis network configuration for the rejection of dimethylphenol from wastewater. Journal of Environmental Engineering. 144(1).en_US
dc.identifier.urihttp://hdl.handle.net/10454/12260
dc.descriptionYesen_US
dc.description.abstractReverse osmosis (RO) has long been recognised as an efficient separation method for treating and removing harmful pollutants, such as dimethylphenol in wastewater treatment. This research aims to study the effects of RO network configuration of three modules of a wastewater treatment system using a spiral-wound RO membrane for the removal of dimethylphenol from its aqueous solution at different feed concentrations. The methodologies used for this research are based on simulation and optimisation studies carried out using a new simplified model. This takes into account the solution-diffusion model and film theory to express the transport phenomena of both solvent and solute through the membrane and estimate the concentration polarization impact respectively. This model is validated by direct comparison with experimental data derived from the literature and which includes dimethylphenol rejection method performed on a small-scale commercial single spiral-wound RO membrane system at different operating conditions. The new model is finally implemented to identify the optimal module configuration and operating conditions that achieve higher rejection after testing the impact of RO configuration. The optimisation model has been formulated to maximize the rejection parameters under optimal operating conditions of inlet feed flow rate, pressure and temperature for a given set of inlet feed concentration. Also, the optimisation model has been subjected to a number of upper and lower limits of decision variables, which include the inlet pressure, flow rate and temperature. In addition, the model takes into account the pressure loss constraint along the membrane length commensurate with the manufacturer’s specifications. The research clearly shows that the parallel configuration yields optimal dimethylphenol rejection with lower pressure loss.en_US
dc.language.isoenen_US
dc.rights© 2017 ACSE. Reproduced in accordance with the publisher's self-archiving policy.en_US
dc.subjectSpiral-wound reverse osmosis; Wastewater treatment; Dimethylphenol rejection; Mathematical modelling; Reverse osmosis network optimisationen_US
dc.titleOptimal reverse osmosis network configuration for the rejection of dimethylphenol from wastewateren_US
dc.status.refereedYesen_US
dc.date.Accepted2017-06-07
dc.date.application2017-10-25
dc.typeArticleen_US
dc.type.versionAccepted Manuscripten_US
dc.identifier.doihttps://doi.org/10.1061/(ASCE)EE.1943-7870.0001284


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