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dc.contributor.authorWan, Chun Feng
dc.contributor.authorChung, Neal Tai-Shung
dc.date.accessioned2016-11-03T13:25:13Z
dc.date.available2016-11-03T13:25:13Z
dc.date.issued2016-03-28
dc.identifier.citationWan CF, Chung T-S (2016) Maximize the operating profit of a SWRO-PRO integrated process for optimal water production and energy recovery. Renewable Energy 94: 304–313. Available: http://dx.doi.org/10.1016/j.renene.2016.03.057.
dc.identifier.issn0960-1481
dc.identifier.doi10.1016/j.renene.2016.03.057
dc.identifier.urihttp://hdl.handle.net/10754/621799
dc.description.abstractPressure retarded osmosis (PRO) is a promising technology to reduce the specific energy consumption and the operating expenditure of a seawater reverse osmosis (SWRO) plant. In this study, a simple analytical PRO model is developed to predict the PRO performance as the dilution of draw solutions occurs. The model can predict the PRO performance with a high accuracy without carrying out complicated integrations and experiments. The operating profit of SWRO-PRO is also studied by calculating the profit generated for every m3 of seawater entering the process because maximizing the operating profit is the uttermost objective of the SWRO-PRO process. Based on the PRO analytical model, the operating profit and the dynamics of the SWRO-PRO process, a strategy has been proposed to maximize the operating profit of the SWRO-PRO process while maintaining the highest power density of the PRO membranes. This study proves that integration of SWRO with PRO can (1) push the SWRO to a higher recovery and maintain its high profitability, (2) effectively reduce the specific energy consumption of desalination by up to 35% and (3) increase the operating profit up to 100%. © 2016 Elsevier Ltd.
dc.description.sponsorshipThis research is supported by the Singapore National Research Foundation, Prime Minister's Office, Singapore, under its Environmental & Water Technologies Strategic Research Programme, administered by the Environment & Water Industry Programme Office (EWI) of the PUB under the project titled "Membrane Development for Osmotic Power Generation, Part 2. Module Fabrication and System Integration" (1102-IRIS-11-01) and NUS grant no. R-279-000-382-279. The special thanks are due to due to Dr. Gang Han, Dr. Sui Zhang, Dr. Xue Li, Dr. Junying Xiong and Mr. Zhenlei Cheng for their kind help.
dc.publisherElsevier BV
dc.subjectEnergy recovery
dc.subjectOperating profit
dc.subjectOsmotic energy
dc.subjectPressure retarded osmosis
dc.subjectProcess optimization
dc.subjectReverse osmosis
dc.titleMaximize the operating profit of a SWRO-PRO integrated process for optimal water production and energy recovery
dc.typeArticle
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalRenewable Energy
dc.contributor.institutionDepartment of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, Singapore
kaust.personChung, Neal Tai-Shung


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