Journal article
Improvement of MCDI operation and design through experiment and modelling: Regeneration with brine and optimum residence time
A Hassanvand, GQ Chen, PA Webley, SE Kentish
Desalination | ELSEVIER | Published : 2017
Abstract
Membrane Capacitive Deionization (MCDI) is an energy efficient, electrochemical desalination technology, in which ions are removed from a salty stream upon applying a constant voltage or current. The ions are stored in carbon electrodes and then released back into the stream by reversing the polarity. In this work, we aimed to assess the feasibility of using a brine stream to regenerate the MCDI unit in order to improve water recovery. We further aimed to determine the optimum residence time in the MCDI unit. To achieve these objectives, we first enhanced the ion transport model previously developed for MCDI by independently measuring the counter-ion and co-ion diffusion coefficients in the ..
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Grants
Awarded by Australian Education International, Australian Government
Funding Acknowledgements
Armineh Hassanvand acknowledges The University of Melbourne for the IPRS (International Postgraduate Research Scholarship) and APA (Australian Postgraduate Awards) scholarships, which are funded by the Australian Government. George Chen and Sandra Kentish acknowledge research funding from the Australian Research Council's Industrial Transformation Research Program (ITRP) scheme (Project Number IH120100005). The ARC Dairy Innovation Hub is a collaboration between The University of Melbourne, The University of Queensland and Dairy Innovation Australia Ltd. George Chen acknowledges the support from an Early Career Researcher (ECR) Grant awarded by the Melbourne School of Engineering, The University of Melbourne. We are grateful to Dr. Ranjeet Singh (The University of Melbourne) for assistance with SEM images, David Danaci (The University of Melbourne) for pore size analysis, Vanessa Gunner (The University of Melbourne) for data analysis, and Kezia (Membrane Futures Pty Ltd., Australia) who provided expertise in membrane characterization. We similarly acknowledge valuable input from the reviewers of the paper. We would also like to acknowledge the Particulate Fluid Processing Centre at the University of Melbourne) for infrastructure support.