Journal
DESALINATION
Volume 368, Issue -, Pages 48-59Publisher
ELSEVIER
DOI: 10.1016/j.desal.2015.04.014
Keywords
Colloidal silica; Reverse osmosis; Spiral wound module; Canary cell; Ultrasonic time-domain reflectometry (UTDR)
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Funding
- Environment and Water Industry Development Council of Singapore [C651/06/178]
- Singapore Economic Development Board
- National Research Foundation for an Environmental and Water Technologies Scholarship
- International Desalination Association
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The development of a side-stream reverse osmosis cell, called the 'canary cell', to simulate the spiral wound module (SWM) is described. Representative fouling rates and ex-situ membrane autopsies show the capability of the canary cell to simulate the SWM under controlled hydrodynamics and flux conditions. The development of a dimensionless calibration curve allows the canary cell to act as an early warning system with respect to the SWM. The rate of cake thickness increase was also measured by ultrasonic time domain reflectometry coupled to the canary cell and used to monitor membrane fouling and cleaning. (C) 2015 Elsevier B.V. All rights reserved.
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