TY - JOUR
T1 - Maximize the operating profit of a SWRO-PRO integrated process for optimal water production and energy recovery
AU - Wan, Chun Feng
AU - Chung, Neal Tai-Shung
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This 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.
PY - 2016/3/28
Y1 - 2016/3/28
N2 - Pressure 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.
AB - Pressure 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.
UR - http://hdl.handle.net/10754/621799
UR - https://linkinghub.elsevier.com/retrieve/pii/S0960148116302415
UR - http://www.scopus.com/inward/record.url?scp=84961626306&partnerID=8YFLogxK
U2 - 10.1016/j.renene.2016.03.057
DO - 10.1016/j.renene.2016.03.057
M3 - Article
SN - 0960-1481
VL - 94
SP - 304
EP - 313
JO - Renewable Energy
JF - Renewable Energy
ER -
