Typically, membrane module replacements have been completed on either an as needed basis due to integrity failure, or based on a fixed term, maximum operating period dictated by membrane warranty life, usually negotiated during membrane procurement. However, given that membrane replacement costs contribute a significant portion of the lifecycle cos...

Overall, this paper will be of keen interest to utility owners, operators and engineers interested in tools and techniques that can be used to develop indicators that can maximize the operational lifetime of membrane modules prior to replacement. Since membrane retrofits are currently of high interest to many municipalities, this paper will provide...