AWWA JAW58359
Journal AWWA - Membrane Integrity Monitoring with Distributed Laser Turbidimetry
Journal Article by American Water Works Association, 06/01/2003
Carr, Mary C.; Carlson, Kenneth H.; Sadar, Michael
Full Description
Monitoring membrane integrity is critical to ensuringwater quality. The current approach involvestaking a rack offline and conducting a pressuredecay test. However, this approach is not in real timeand can be disruptive to production. The authorsexamine how turbidity, a well-accepted measurementof filtered water quality, can be used in a distributedmanner to monitor membrane integrity in real timecost-effectively with distributed laser turbidimetry. Thistechnique can reduce system downtime and rapidlydetect defective membranes. The study results alsoindicate that for monitoring membrane integrity, distributingthe turbidity monitoring instruments may bemore effective than increasing their sensitivity. Includes 14 references, tables, figures.