Chemical and Biomedical Engineering - Research Publications
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ItemCritical review of strategies for CO2 delivery to large-scale microalgae cultures(CHEMICAL INDUSTRY PRESS, 2018-11-01)Microalgae have great, yet relatively untapped potential as a highly productive crop for the production of animal and aquaculture feed, biofuels, and nutraceutical products. Compared to conventional terrestrial crops they have a very fast growth rate and can be produced on non-arable land. During microalgae cultivation, carbon dioxide (CO2) is supplied as the carbon source for photosynthesising microalgae. There are a number of potential CO2 supplies including air, flue gas and purified CO2. In addition, several strategies have been applied to the delivery of CO2 to microalgae production systems, including directly bubbling CO2-rich gas, microbubbles, porous membrane spargers and non-porous membrane contactors. This article provides a comparative analysis of the different CO2 supply and delivery strategies and how they relate to each other.
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ItemA review of salty waste stream management in the Australian dairy industry(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2018-10-15)Saline wastewater is a by-product of cheese manufacturing and whey processing that can have serious environmental and economic consequences. Salty streams originating from dairy processing operations include chromatography wastes, clean-in-place wastewater, acid whey, salty whey and waste generated from whey demineralization processes such as nanofiltration, electrodialysis and ion exchange. With the participation of the major dairy companies in Australia, an industry wide survey was conducted to acquire a comprehensive understanding of the management strategies for these salty waste streams. High salinity waste streams are commonly directed to evaporation ponds. However, environmental impacts from land degradation, odour and dust have prevented the construction of further evaporation ponds in some areas of Australia. The survey results also show that disposal to municipal trade waste is not always effective, as the current levels of some salinity-related parameters are significantly higher than the levels allowed by the local water/environmental authorities. For high salinity streams, salt removal can lead to more substantial savings in trade waste charges compared to wastewater volume reduction. Thus, salt removal and recovery from salty waste streams has become a major focus of the sustainability agenda of the Australian dairy industry.
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ItemSpray assisted layer-by-layer assembled one-bilayer polyelectrolyte reverse osmosis membranes(ELSEVIER SCIENCE BV, 2018-10-15)
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ItemTransport of terpenes through composite PDMS/PAN solvent resistant nanofiltration membranes(ELSEVIER SCIENCE BV, 2018-12-22)
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ItemEffects of industrial gas impurities on the performance of mixed matrix membranes(ELSEVIER SCIENCE BV, 2018-03-01)
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ItemPervaporation performance of crosslinked PVA membranes in the vicinity of the glass transition temperature(ELSEVIER SCIENCE BV, 2018-05-01)
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ItemA carbonic anhydrase inspired temperature responsive polymer based catalyst for accelerating carbon capture(ELSEVIER SCIENCE SA, 2018-01-15)
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ItemThe Role of Ion Exchange Membranes in Membrane Capacitive Deionisation(MDPI, 2017-09)Ion-exchange membranes (IEMs) are unique in combining the electrochemical properties of ion exchange resins and the permeability of a membrane. They are being used widely to treat industrial effluents, and in seawater and brackish water desalination. Membrane Capacitive Deionisation (MCDI) is an emerging, energy efficient technology for brackish water desalination in which these ion-exchange membranes act as selective gates allowing the transport of counter-ions toward carbon electrodes. This article provides a summary of recent developments in the preparation, characterization, and performance of ion exchange membranes in the MCDI field. In some parts of this review, the most relevant literature in the area of electrodialysis (ED) is also discussed to better elucidate the role of the ion exchange membranes. We conclude that more work is required to better define the desalination performance of the proposed novel materials and cell designs for MCDI in treating a wide range of feed waters. The extent of fouling, the development of cleaning strategies, and further techno-economic studies, will add value to this emerging technique.
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ItemThe use of monoethanolamine and potassium glycinate solvents for CO2 delivery to microalgae through a polymeric membrane system(ELSEVIER SCIENCE BV, 2017-12-15)