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

Abstract

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.

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