DOI: 10.1016/j.watres.2017.10.042
Scopus记录号: 2-s2.0-85032697596
论文题名: Forward osmosis membrane modular configurations for osmotic dilution of seawater by forward osmosis and reverse osmosis hybrid system
作者: Kim J.E. ; Phuntsho S. ; Ali S.M. ; Choi J.Y. ; Shon H.K.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 128 起始页码: 183
结束页码: 192
语种: 英语
英文关键词: Forward osmosis
; Hybrid desalination systems
; Pressure assisted osmosis
; Reverse osmosis
; Spiral wound element
Scopus关键词: Desalination
; Housing
; Hybrid systems
; Membranes
; Ontology
; Reverse osmosis
; Seawater
; Wastewater reclamation
; Water conservation
; Desalination systems
; Empirical relationships
; Forward osmosis
; Forward osmosis membranes
; Modular configurations
; Operational performance
; Spiral wound
; Total energy consumption
; Energy utilization
; sea water
; sea water
; desalination
; experimental study
; membrane
; osmosis
; performance assessment
; reverse osmosis
; seawater
; wastewater
; Article
; controlled study
; desalination
; dilution
; energy consumption
; energy cost
; force
; forward osmosis
; hydraulic pressure
; membrane housing
; osmosis
; osmotic pressure
; pressure
; pressure assisted osmosis
; priority journal
; process model
; reverse osmosis
; sensitivity analysis
; waste water recycling
; water flow
; artificial membrane
; chemistry
; devices
; equipment design
; filtration
; osmosis
; procedures
; waste water
; water management
; Equipment Design
; Filtration
; Membranes, Artificial
; Osmosis
; Osmotic Pressure
; Seawater
; Waste Water
; Water Purification
英文摘要: This study evaluates various options for full-scale modular configuration of forward osmosis (FO) process for osmotic dilution of seawater using wastewater for simultaneous desalination and water reuse through FO-reverse osmosis (RO) hybrid system. Empirical relationship obtained from one FO membrane element operation was used to simulate the operational performances of different FO module configurations. The main limiting criteria for module operation is to always maintain the feed pressure higher than the draw pressure throughout the housing module for safe operation without affecting membrane integrity. Experimental studies under the conditions tested in this study show that a single membrane housing cannot accommodate more than four elements as the draw pressure exceeds the feed pressure. This then indicates that a single stage housing with eight elements is not likely to be practical for safe FO operation. Hence, six different FO modular configurations were proposed and simulated. A two-stage FO configuration with multiple housings (in parallel) in the second stage using same or larger spacer thickness reduces draw pressure build-up as the draw flow rates are reduced to half in the second stage thereby allowing more than four elements in the second stage housing. The loss of feed pressure (pressure drop) and osmotic driving force in the second stage are compensated by operating under the pressure assisted osmosis (PAO) mode, which helps enhance permeate flux and maintains positive pressure differences between the feed and draw chamber. The PAO energy penalty is compensated by enhanced permeate throughput, reduced membrane area, and plant footprint. The contribution of FO/PAO to total energy consumption was not significant compared to post RO desalination (90%) indicating that the proposed two-stage FO modular configuration is one way of making the FO full-scale operation practical for FO-RO hybrid system. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113136
Appears in Collections: 气候减缓与适应
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作者单位: School of Civil and Environmental Engineering, University of Technology, Post Box 129, Broadway, Sydney, NSW 2007, Australia; Hyorim Industries Inc., Yatap-dong, Bundang-gu, Seongnam-city, Gyeonggi-do 513-2, South Korea
Recommended Citation:
Kim J.E.,Phuntsho S.,Ali S.M.,et al. Forward osmosis membrane modular configurations for osmotic dilution of seawater by forward osmosis and reverse osmosis hybrid system[J]. Water Research,2018-01-01,128