Diagnostic analysis of RO desalting treated waste water

2019 668 1328 7 26895 document 1328 Diagnostic_analysis_of_RO_desalting.pdf application/pdf 147483 2011-09-09 10:22:54 https://vuir.vu.edu.au/2019/1/Diagnostic_analysis_of_RO_desalting.pdf 2019 1 application/pdf text en public

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http://eprints.org/relation/isVersionOf https://vuir.vu.edu.au/id/document/1328 http://eprints.org/relation/isVolatileVersionOf https://vuir.vu.edu.au/id/document/1328 http://eprints.org/relation/isCoversheetVersionOf https://vuir.vu.edu.au/id/document/1328 archive 292 disk0/00/00/20/19 2009-05-07 17:02:41 2024-06-21 02:45:35 2009-05-07 17:02:41 article show Gray Stephen 0000-0002-8748-2748 Zach-Maor A Semiat R Rahardianto A Cohen Yoram Wilson S Diagnostic analysis of RO desalting treated waste water pub 300000 cesare ResPubID14800, scaling propensity, calcium phosphate, supersaturation, wastewater treatment, disalting treatment wastewater, Western Treatment Plant Diagnostic analysis of reverse osmosis membranes that were fed with Western treatment plant (WTP) recycled water was investigated by both thermodynamic calculations and laboratory experiments in order to predict the feasibility of RO desalting for WTP. The thermodynamic calculations suggested that RO recoveries of 80–85% were feasible with careful control of feed water pH and the use of chemical additives such as antiscalants and chelating agents, it also predicted the major minerals of concern to be silica, calcium fluoride, calcium carbonate, and calcium phosphate. Following the thermodynamic simulations, diagnostic laboratory experiments were undertaken. The experiments showed that the major contributor to scale formation was indeed calcium phosphate and possibly another calcium based compound, which was strongly suspected to be calcium carbonate. Based on previously published literature that indicated anti-scalants did not substantially decrease the scaling effect of calcium phosphate and laboratory tests that indicated controlling the pH to 6.4 in the feed water dramatically reduced scaling formation, it was suggested that the feed water could be controlled by pH adjustments only. Inter-stage pH correction was suggested as an optional technique to enhance the overall water recovery to above 95%. 2008-09-30 published Elsev ier 54868 2 2383503 dark_document 54868 correspondence.pdf application/pdf e72ff7ad6e28a157ac06796167b55500 MD5 128412 2020-07-13 03:50:15 2019 3 3 application/pdf text Correspondence en staffonly

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other 73303 2 2415799 dark_document 73303 GRAY Stephen.pdf application/pdf 79db7f99a86697cf99b99a424609305e MD5 49223 2020-11-01 22:07:57 2019 8 8 application/pdf text Generic Permission Form en staffonly

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other public Desalination 230 1-3 239-247 TRUE 0011-9164 Includes bibliographical references: pp. [11-12] FALSE