Real-Time Integrity Monitoring of High Pressure Membranes

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Ostarcevic, Eddy (2016) Real-Time Integrity Monitoring of High Pressure Membranes. PhD thesis, Victoria University.


Growing water scarcity and deteriorating quality is forcing the re-evaluation of the single use nature of water consumption. Consequently, water reclamation, or the multiple use of a water resource, is considered an effective way to extend resource availability. Multiple use of a water resource for direct potable water production requires the use of reverse osmosis (RO) membrane systems to reject the passage of microbiological contamination including pathogens such as virus. The performance of membrane systems as a barrier to protect public health must be routinely challenged using a surrogate for the smallest pathogen by integrity tests. The aim of this research was to develop a new integrity monitoring technique that could identify the rejection capacity for pressure driven membrane systems in real-time. The research objectives included the development of a suitable non-microbial virus surrogate and an integrated quantification technique that identified the rejection performance across a membrane system in real-time with high resolution and reliability. Sensitivity and precision are critical to the successful application for any new membrane system challenge test.

Item type Thesis (PhD thesis)
Subjects Historical > FOR Classification > 0904 Chemical Engineering
Current > Division/Research > College of Science and Engineering
Historical > Faculty/School/Research Centre/Department > Institute for Sustainability and Innovation (ISI)
Keywords screening food grade dyes, fluorescent polystyrene nanoparticles, pmma nanoparticles, polymethyl methacrylate, Rayleigh scattering, water reuse, water recycling
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