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dc.contributor.authorAl-Obaidi, M.A.*
dc.contributor.authorLi, Jian-Ping*
dc.contributor.authorAlsadaie, S.M.*
dc.contributor.authorKara-Zaitri, Chakib*
dc.contributor.authorMujtaba, Iqbal M.*
dc.date.accessioned2018-06-25T13:54:42Z
dc.date.available2018-06-25T13:54:42Z
dc.date.issued2018-10-15
dc.identifier.citationAl-Obaidi MA, Li J-P, Alsadaie S et al (2018) Modelling and optimisation of a multistage Reverse Osmosis processes with permeate reprocessing and recycling for the removal of N-nitrosodimethylamine from wastewater using Species Conserving Genetic Algorithms. Chemical Engineering Journal. 350: 824-834.en_US
dc.identifier.urihttp://hdl.handle.net/10454/16304
dc.descriptionYesen_US
dc.description.abstractThe need for desalinated seawater and reclaimed wastewater is increasing rapidly with the rising demands for drinkable water required for the world with continuously growing population. Reverse Osmosis (RO) processes are now among the most promising technologies used to remove chemicals from industrial effluents. N-nitrosamine compounds and especially N-nitrosodimethylamine (NDMA) are human carcinogens and can be found in industrial effluents of many industries. Particularly, NDMA is one of the by-products of disinfection process of secondary-treated wastewater effluent with chloramines, chlorines, and ozone (inhibitors). However, multi-stage RO processes with permeate reprocessing and recycling has not yet been considered for the removal of N-nitrosodimethylamine from wastewater. This research therefore, begins by investigating a number of multi-stage RO processes with permeate-reprocessing to remove N-nitrosodimethylamine (NDMA) from wastewater and finds the best configuration in terms of rejection, recovery and energy consumption via optimisation. For the first time we have applied Species Conserving Genetic Algorithm (SCGA) in optimising RO process conditions for wastewater treatment. Finally, permeate recycling is added to the best configuration and its performance is evaluated as a function of the amount of permeate being recycled via simulation. For this purpose, a mathematical model is developed based on the solution diffusion model, which is used for both optimisation and simulation. A number of model parameters have been estimated using experimental data of Fujioka et al. (Journal of Membrane Science 454 (2014) 212–219), so that the model can be used for simulation and optimisation with high accuracy and confidence.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.1016/j.cej.2018.06.022en_US
dc.rights© 2018 Elsevier B.V. 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.en_US
dc.subjectMulti-stage Reverse Osmosis processesen_US
dc.subjectPermeate reprocessingen_US
dc.subjectPermeate recycleen_US
dc.subjectSpecies Conserving Genetic Algorithm optimisation (SCGA)en_US
dc.subjectN-nitrosamine removalen_US
dc.titleModelling and optimisation of a multistage Reverse Osmosis processes with permeate reprocessing and recycling for the removal of N-nitrosodimethylamine from wastewater using Species Conserving Genetic Algorithmsen_US
dc.status.refereedYesen_US
dc.date.Accepted2018-06-05
dc.date.application2018-06-06
dc.typeArticleen_US
dc.type.versionAccepted Manuscripten_US
refterms.dateFOA2019-06-07T13:31:55Z


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