Recent developments in forward osmosis : opportunities and challenges.

Abstract Recently, forward osmosis (FO) has attracted growing attention in many potential applications such as power generation, desalination, wastewater treatment and food processing. However, there are still several critical challenges, including concentration polarization, membrane fouling, reverse solute diffusion and the need for new membrane development and draw solute design in FO. These challenges are also the current research focus on FO. This paper aims to review the recent developments in FO, focusing on the opportunities and challenges. It begins with discussing the advantages of the FO process over pressure-driven membrane processes. These potential advantages lie in FO's low energy consumption, low fouling propensity, reduced or easy cleaning, low costs, high salt rejection and high water flux. Next, the recent applications of FO, as the outcomes of the above advantages, are described. The key part of this review is a detailed discussion of five critical challenges faced by FO and their relationships. Finally, the future of FO is viewed. This review provides a clear outline for FO-concerned researchers on the recent developments in FO.

[1]  S. Hong,et al.  Recovery of phosphate using multilayer polyelectrolyte nanofiltration membranes , 2009 .

[2]  Chuyang Y. Tang,et al.  Synthesis of high flux forward osmosis membranes by chemically crosslinked layer-by-layer polyelectr , 2011 .

[3]  K.S.M.S. Raghavarao,et al.  Effect of process parameters on transmembrane flux during direct osmosis. , 2006 .

[4]  Shyam S. Sablani,et al.  Concentration polarization in ultrafiltration and reverse osmosis: a critical review , 2001 .

[5]  Tzahi Y. Cath,et al.  Selection of inorganic-based draw solutions for forward osmosis applications , 2010 .

[6]  Jean-Christophe Remigy,et al.  New UV-photografted nanofiltration membranes for the treatment of colored textile dye effluents , 2006 .

[7]  Qian Yang,et al.  Cellulose acetate nanofiltration hollow fiber membranes for forward osmosis processes , 2010 .

[8]  P. V. Bartels,et al.  Osmotic dehydration as a pre-treatment before combined microwave-hot-air drying of mushrooms , 2001 .

[9]  Peter Grathwohl,et al.  Diffusion in Natural Porous Media: Contaminant Transport, Sorption/Desorption and Dissolution Kinetics , 1998 .

[10]  M. Elimelech,et al.  Cake-enhanced concentration polarization: a new fouling mechanism for salt-rejecting membranes. , 2003, Environmental science & technology.

[11]  Kai Yu Wang,et al.  Double-Skinned Forward Osmosis Membranes for Reducing Internal Concentration Polarization within the Porous Sublayer , 2010 .

[12]  Menachem Elimelech,et al.  Forward with osmosis: emerging applications for greater sustainability. , 2011, Environmental science & technology.

[13]  Anthony G Fane,et al.  Fouling propensity of forward osmosis: investigation of the slower flux decline phenomenon. , 2010, Water science and technology : a journal of the International Association on Water Pollution Research.

[14]  Xiaoxiao Song,et al.  Nano Gives the Answer: Breaking the Bottleneck of Internal Concentration Polarization with a Nanofiber Composite Forward Osmosis Membrane for a High Water Production Rate , 2011, Advanced materials.

[15]  Kai Yu Wang,et al.  Polybenzimidazole (PBI) nanofiltration hollow fiber membranes applied in forward osmosis process , 2007 .

[16]  Stein Erik Skilhagen,et al.  Membrane processes in energy supply for an osmotic power plant , 2008 .

[17]  Merlin L. Bruening,et al.  Ultrathin, Multilayered Polyelectrolyte Films as Nanofiltration Membranes , 2003 .

[18]  Amy E. Childress,et al.  Forward osmosis: Principles, applications, and recent developments , 2006 .

[19]  Sui Zhang,et al.  Molecular design of the cellulose ester-based forward osmosis membranes for desalination , 2011 .

[20]  Menachem Elimelech,et al.  Performance limiting effects in power generation from salinity gradients by pressure retarded osmosis. , 2011, Environmental science & technology.

[21]  Stephen H. Schneider,et al.  Encyclopedia of Climate and Weather , 1996 .

[22]  S. Loeb,et al.  A two-coefficient water transport equation for pressure-retarded osmosis , 1978 .

[23]  Jeffrey R. McCutcheon,et al.  Electrospun nanofiber supported thin film composite membranes for engineered osmosis , 2011 .

[24]  E. Hoek,et al.  Impacts of Operating Conditions and Solution Chemistry on Osmotic Membrane Structure and Performance. , 2012, Desalination.

[25]  Eric M.V. Hoek,et al.  Modeling concentration polarization in reverse osmosis processes , 2005 .

[26]  Takeo Honda,et al.  Comparative mechanical efficiency of several plant configurations using a pressure-retarded osmosis energy converter , 1990 .

[27]  Khaled Mohamed Talaat.  Forward osmosis process for dialysis fluid regeneration. , 2009, Artificial organs.

[28]  G. Wick,et al.  Salinity Gradient Power: Utilizing Vapor Pressure Differences , 1979, Science.

[29]  J. Post,et al.  Energy recovery from controlled mixing salt and fresh water with a reverse electrodialysis system. , 2008, Environmental science & technology.

[30]  S. Loeb,et al.  Internal polarization in the porous substructure of a semipermeable membrane under pressure-retarded osmosis , 1978 .

[31]  S. Loeb,et al.  Production of energy from concentrated brines by pressure-retarded osmosis : II. Experimental results and projected energy costs , 1976 .

[32]  Sidney Loeb,et al.  Production of energy from concentrated brines by pressure-retarded osmosis , 1976 .

[33]  Menachem Elimelech,et al.  Modeling water flux in forward osmosis: Implications for improved membrane design , 2007 .

[34]  K. Petrotos,et al.  Direct osmotic concentration of tomato juice in tubular membrane – module configuration. II. The effect of using clarified tomato juice on the process performance , 1999 .

[35]  J. Post,et al.  Salinity-gradient power : Evaluation of pressure-retarded osmosis and reverse electrodialysis , 2007 .

[36]  Rong Wang,et al.  Fabrication of novel poly(amide–imide) forward osmosis hollow fiber membranes with a positively charged nanofiltration-like selective layer , 2011 .

[37]  Markku J. Lampinen,et al.  Thermodynamic optimizing of pressure-retarded osmosis power generation systems , 1999 .

[38]  Andrew G. Livingston,et al.  Method for the preparation of cellulose acetate flat sheet composite membranes for forward osmosis—Desalination using MgSO4 draw solution , 2011 .

[39]  Tzahi Y. Cath,et al.  High recovery of concentrated RO brines using forward osmosis and membrane distillation , 2009 .

[40]  G. D. Mehta,et al.  Further results on the performance of present-day osmotic membranes in various osmotic regions , 1982 .

[41]  M. Elimelech,et al.  Water and sanitation in developing countries: including health in the equation. , 2007, Environmental science & technology.

[42]  How Yong Ng,et al.  A novel hybrid forward osmosis - nanofiltration (FO-NF) process for seawater desalination: Draw solution selection and system configuration , 2010 .

[43]  G. J. Harmsen,et al.  Reverse electrodialysis : Performance of a stack with 50 cells on the mixing of sea and river water , 2009 .

[44]  Marcel Mulder,et al.  Basic Principles of Membrane Technology , 1991 .

[45]  Sunny Wang,et al.  Direct observation of microbial adhesion to membranes. , 2005, Environmental science & technology.

[46]  R. J. Petersen,et al.  Composite reverse osmosis and nanofiltration membranes , 1993 .

[47]  E R Cornelissen,et al.  The innovative osmotic membrane bioreactor (OMBR) for reuse of wastewater. , 2011, Water science and technology : a journal of the International Association on Water Pollution Research.

[48]  Ngai Yin Yip,et al.  Thin-film composite pressure retarded osmosis membranes for sustainable power generation from salinity gradients. , 2011, Environmental science & technology.

[49]  U. Merten,et al.  Flow Relationships in Reverse Osmosis , 1963 .

[50]  R. L. Riley,et al.  Kinetic study of the hydrolysis of cellulose acetate in the pH range of 2–10 , 1966 .

[51]  Menachem Elimelech,et al.  Global challenges in energy and water supply: the promise of engineered osmosis. , 2008, Environmental science & technology.

[52]  Anthony G Fane,et al.  Direct microscopic observation of forward osmosis membrane fouling. , 2010, Environmental science & technology.

[53]  Chuyang Y. Tang,et al.  Network modeling for studying the effect of support structure on internal concentration polarization , 2011 .

[54]  Rong Wang,et al.  High performance flat sheet forward osmosis membrane with an NF-like selective layer on a woven fabric embedded substrate , 2012 .

[55]  Zhenyu Li,et al.  Indirect desalination of Red Sea water with forward osmosis and low pressure reverse osmosis for water reuse , 2011 .

[56]  Menachem Elimelech,et al.  Coupling between chemical and physical interactions in natural organic matter (NOM) fouling of nanofiltration membranes: implications for fouling control , 2002 .

[57]  A. Thombre,et al.  Asymmetric membrane capsules for osmotic drug delivery. I. Development of a manufacturing process. , 1999, Journal of controlled release : official journal of the Controlled Release Society.

[58]  Gary L. Amy,et al.  Well-constructed cellulose acetate membranes for forward osmosis: Minimized internal concentration polarization with an ultra-thin selective layer , 2010 .

[59]  Leyuan Shi,et al.  Effect of substrate structure on the performance of thin-film composite forward osmosis hollow fiber membranes , 2011 .

[60]  In-Chul Kim,et al.  Nanoporous polyethersulfone (PES) membrane with enhanced flux applied in forward osmosis process , 2011 .

[61]  Charles E. Reid,et al.  Physical characteristics of osmotic membranes of organic polymers , 1959 .

[62]  Tao He,et al.  Preparation and characterization of nanofiltration membranes by coating polyethersulfone hollow fibers with sulfonated poly(ether ether ketone) (SPEEK) , 2008 .

[63]  Richard W. Baker,et al.  Osmotic drug delivery : a review of the patent literature , 1995 .

[64]  S. Loeb.  Large-scale power production by pressure-retarded osmosis, using river water and sea water passing through spiral modules , 2002 .

[65]  Menachem Elimelech,et al.  Protein (BSA) fouling of reverse osmosis membranes : Implications for wastewater reclamation , 2007 .

[66]  Linda Zou,et al.  Brackish water desalination by a hybrid forward osmosis-nanofiltration system using divalent draw solute , 2012 .

[67]  M. Elimelech,et al.  Organic fouling of forward osmosis membranes: Fouling reversibility and cleaning without chemical reagents , 2010 .

[68]  Ming Ming Ling,et al.  Facile synthesis of thermosensitive magnetic nanoparticles as "smart" draw solutes in forward osmosis. , 2011, Chemical communications.

[69]  Qian Yang,et al.  Enhanced forward osmosis from chemically modified polybenzimidazole (PBI) nanofiltration hollow fiber membranes with a thin wall , 2009 .

[70]  J. Hesari,et al.  Osmotic dehydration kinetics of apricot using sucrose solution , 2007 .

[71]  S. Loeb,et al.  Countercurrent flow osmotic processes for the production of solutions having a high osmotic pressure , 1973 .

[72]  Tai‐Shung Chung,et al.  The role of sulphonated polymer and macrovoid-free structure in the support layer for thin-film comp , 2011 .

[73]  Rong Wang,et al.  Influence of monomer concentrations on the performance of polyamide-based thin film composite forwar , 2011 .

[74]  Menachem Elimelech,et al.  The global challenge for adequate and safe water , 2006 .

[75]  R. Baker.  Membrane Technology and Applications , 1999 .

[76]  T. Holt,et al.  The potential for power production from salinity gradients by pressure retarded osmosis , 2009 .

[77]  Menachem Elimelech,et al.  Performance evaluation of sucrose concentration using forward osmosis , 2009 .

[78]  K. Petrotos,et al.  A description of a flat geometry direct osmotic concentrator to concentrate tomato juice at ambient temperature and low pressure , 2010 .

[79]  Ming-Thau Sheu,et al.  Asymmetric membrane capsules for delivery of poorly water-soluble drugs by osmotic effects. , 2005, International journal of pharmaceutics.

[80]  Ali Nokhodchi,et al.  Swellable elementary osmotic pump (SEOP): an effective device for delivery of poorly water-soluble drugs. , 2008, European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V.

[81]  Jincai Su,et al.  Sublayer structure and reflection coefficient and their effects on concentration polarization and me , 2011 .

[82]  Kil Jin Park,et al.  Osmotic dehydration kinetics of pear D'anjou (Pyrus communis L.) , 2002 .

[83]  Menachem Elimelech,et al.  High performance thin-film composite forward osmosis membrane. , 2010, Environmental science & technology.

[84]  Amy E. Childress,et al.  The forward osmosis membrane bioreactor: A low fouling alternative to MBR processes , 2009 .

[85]  Jean-Christophe Remigy,et al.  Application of nanofiltration hollow fibre membranes, developed by photografting, to treatment of anionic dye solutions , 2007 .

[86]  Tai-Shung Chung,et al.  Forward osmosis processes: Yesterday, today and tomorrow , 2012 .

[87]  Kai Yu Wang,et al.  Study of draw solutes using 2-methylimidazole-based compounds in forward osmosis , 2010 .

[88]  Tzahi Y. Cath,et al.  Membrane contactor processes for wastewater reclamation in space: II. Combined direct osmosis, osmotic distillation, and membrane distillation for treatment of metabolic wastewater , 2005 .

[89]  Chuyang Y. Tang,et al.  Coupled effects of internal concentration polarization and fouling on flux behavior of forward osmosis membranes during humic acid filtration , 2010 .

[90]  Shuaifei Zhao,et al.  Relating solution physicochemical properties to internal concentration polarization in forward osmos , 2011 .

[91]  Pierre Le-Clech,et al.  Fouling in membrane bioreactors used in wastewater treatment , 2006 .

[92]  Menachem Elimelech,et al.  A novel ammonia-carbon dioxide forward (direct) osmosis desalination process , 2005 .

[93]  Navin K. Rastogi,et al.  Effect of high or low molecular weight of components of feed on transmembrane flux during forward osmosis , 2011 .

[94]  How Yong Ng,et al.  Modified models to predict flux behavior in forward osmosis in consideration of external and internal concentration polarizations , 2008 .

[95]  Menachem Elimelech,et al.  Comparison of fouling behavior in forward osmosis (FO) and reverse osmosis (RO) , 2010 .

[96]  Linda Zou,et al.  Effects of membrane orientation on process performance in forward osmosis applications , 2011 .

[97]  T. Thorsen,et al.  Concentration polarisation by natural organic matter (NOM) in NF and UF , 2004 .

[98]  Valérie Orsat,et al.  Effect of osmotic dehydration on the dielectric properties of carrots and strawberries , 2008 .

[99]  Dezhong Xiao,et al.  The role of physical and chemical parameters on forward osmosis membrane fouling during algae separa , 2011 .

[100]  Menachem Elimelech,et al.  Relating performance of thin-film composite forward osmosis membranes to support layer formation and , 2011 .

[101]  R. Field,et al.  Critical flux concept for microfiltration fouling , 1995 .

[102]  Menachem Elimelech,et al.  Energy requirements of ammonia-carbon dioxide forward osmosis desalination , 2007 .

[103]  H. Lazarides,et al.  Osmotic concentration of liquid foods , 2001 .

[104]  Robert L McGinnis,et al.  A novel ammonia–carbon dioxide osmotic heat engine for power generation , 2007 .

[105]  Richard E. Kravath,et al.  Desalination of sea water by direct osmosis , 1975 .

[106]  Chuyang Y. Tang,et al.  Characteristics and potential applications of a novel forward osmosis hollow fiber membrane , 2010 .

[107]  R. S. Norman,et al.  Osmotic power plants. , 1975, Science.

[108]  E. Drioli,et al.  Recent advances on membrane processes for the concentration of fruit juices: a review , 2004 .

[109]  Victor Yangali-Quintanilla,et al.  Rejection of micropollutants by clean and fouled forward osmosis membrane. , 2011, Water research.

[110]  K. Petrotos,et al.  A study of the direct osmotic concentration of tomato juice in tubular membrane – module configuration. I. The effect of certain basic process parameters on the process performance , 1998 .

[111]  Seong Uk Hong,et al.  Separation of amino acid mixtures using multilayer polyelectrolyte nanofiltration membranes , 2006 .

[112]  Tae-woo Kim,et al.  Systematic approach for draw solute selection and optimal system design for forward osmosis desalination , 2012 .

[113]  June-Seok Choi,et al.  Toward a combined system of forward osmosis and reverse osmosis for seawater desalination , 2009 .

[114]  John D. Floros,et al.  Optimization of osmotic dehydration of diced green peppers by response surface methodology , 2008 .

[115]  C. D. Moody,et al.  Drinking water from sea water by forward osmosis , 1976 .

[116]  Tong Zhan,et al.  Flux patterns and membrane fouling propensity during desalination of seawater by forward osmosis. , 2012, Water research.

[117]  Chuyang Y. Tang,et al.  Characterization of novel forward osmosis hollow fiber membranes , 2010 .

[118]  Emile R Cornelissen,et al.  Experimental studies and modeling on concentration polarization in forward osmosis. , 2010, Water science and technology : a journal of the International Association on Water Pollution Research.

[119]  Michael Flynn,et al.  Membrane contactor processes for wastewater reclamation in space Part I. Direct osmotic concentration as pretreatment for reverse osmosis , 2005 .

[120]  Hans G.L. Coster,et al.  Observation of deposition and removal behaviour of submicron bacteria on the membrane surface during crossflow microfiltration , 2003 .

[121]  Menachem Elimelech,et al.  Reverse draw solute permeation in forward osmosis: modeling and experiments. , 2010, Environmental science & technology.

[122]  How Yong Ng,et al.  Concentration of brine by forward osmosis: Performance and influence of membrane structure , 2008 .

[123]  Dan Li,et al.  Stimuli-responsive polymer hydrogels as a new class of draw agent for forward osmosis desalination. , 2011, Chemical communications.

[124]  Kitty Nijmeijer,et al.  Doubled power density from salinity gradients at reduced intermembrane distance. , 2011, Environmental science & technology.

[125]  Raphael Semiat,et al.  Finite element analysis of forward osmosis process using NaCl solutions , 2011 .

[126]  Carey W. King,et al.  Water intensity of transportation. , 2008, Environmental science & technology.

[127]  Chuyang Y. Tang,et al.  Modeling double-skinned FO membranes , 2011 .

[128]  Guojun Zhang,et al.  Self-assembly of polyelectrolyte multilayer pervaporation membranes by a dynamic layer-by-layer technique on a hydrolyzed polyacrylonitrile ultrafiltration membrane , 2007 .

[129]  Chuyang Y. Tang,et al.  Removal of boron and arsenic by forward osmosis membrane: Influence of membrane orientation and organic fouling , 2012 .

[130]  Guohua Chen,et al.  A novel kind of amphoteric composite nanofiltration membrane prepared from sulfated chitosan (SCS) , 2005 .

[131]  Anthony G Fane,et al.  Colloidal interactions and fouling of NF and RO membranes: a review. , 2011, Advances in colloid and interface science.

[132]  Chuyang Y. Tang,et al.  Synthesis and characterization of novel forward osmosis membranes based on layer-by-layer assembly. , 2011, Environmental science & technology.

[133]  Amy E. Childress,et al.  Power generation with pressure retarded osmosis: An experimental and theoretical investigation , 2009 .

[134]  Navin K. Rastogi,et al.  Forward osmosis for the concentration of anthocyanin from Garcinia indica Choisy , 2010 .

[135]  Rashid A. Khaydarov,et al.  Solar powered direct osmosis desalination , 2007 .

[136]  Rong Wang,et al.  Synthesis and characterization of flat-sheet thin film composite forward osmosis membranes , 2011 .

[137]  Adrian Wing-Keung Law,et al.  Critical flux and particle deposition of fractal flocs during crossflow microfiltration , 2010 .

[138]  Tzahi Y Cath,et al.  Removal of natural steroid hormones from wastewater using membrane contactor processes. , 2006, Environmental science & technology.

[139]  Guy Z. Ramon,et al.  Dynamics of an osmotic backwash cycle , 2010 .

[140]  S. Loeb.  Energy production at the Dead Sea by pressure-retarded osmosis: challenge or chimera? , 1998 .

[141]  Jeffrey R. McCutcheon,et al.  Dewatering press liquor derived from orange production by forward osmosis , 2011 .

[142]  Rong Wang,et al.  Modeling salt accumulation in osmotic membrane bioreactors: Implications for FO membrane selection a , 2011 .

[143]  Linda Zou,et al.  Effects of working temperature on separation performance, membrane scaling and cleaning in forward osmosis desalination , 2011 .

[144]  A. Thombre,et al.  Asymmetric membrane capsules for osmotic drug delivery II. In vitro and in vivo drug release performance. , 1999, Journal of controlled release : official journal of the Controlled Release Society.

[145]  Tzahi Y Cath,et al.  Comprehensive bench- and pilot-scale investigation of trace organic compounds rejection by forward osmosis. , 2011, Environmental science & technology.

[146]  Jorge C. Oliveira,et al.  Osmotic dehydration of pineapple as a pre-treatment for further drying , 2008 .

[147]  Charles E. Reid,et al.  Water and ion flow across cellulosic membranes , 1959 .

[148]  M. Bruening,et al.  High-flux nanofiltration membranes prepared by adsorption of multilayer polyelectrolyte membranes on polymeric supports. , 2005, Langmuir : the ACS journal of surfaces and colloids.

[149]  Tae Gwan Park,et al.  Substrate‐Independent Layer‐by‐Layer Assembly by Using Mussel‐Adhesive‐Inspired Polymers , 2008, Advanced materials.

[150]  Lu Ouyang,et al.  Creation of functional membranes using polyelectrolyte multilayers and polymer brushes. , 2008, Langmuir : the ACS journal of surfaces and colloids.

[151]  J. Georgiadis,et al.  Science and technology for water purification in the coming decades , 2008, Nature.

[152]  J. Weinstein,et al.  Electric Power from Differences in Salinity: The Dialytic Battery , 1976, Science.

[153]  Robert W. Field,et al.  Critical and sustainable fluxes: Theory, experiments and applications , 2006 .

[154]  F. Kaymak-Ertekin,et al.  Optimization of osmotic dehydration of potato using response surface methodology , 2007 .

[155]  B. Freeman,et al.  Surface modification of thin film composite membrane support layers with polydopamine: Enabling use , 2011 .

[156]  Boris Liberman,et al.  Development of novel backwash cleaning technique for reverse osmosis in reclamation of secondary effluent , 2010 .

[157]  S. Loeb,et al.  Effect of porous support fabric on osmosis through a Loeb-Sourirajan type asymmetric membrane , 1997 .

[158]  Qian Yang,et al.  Dual-layer hollow fibers with enhanced flux as novel forward osmosis membranes for water production. , 2009, Environmental science & technology.

[159]  C. D. Lundin,et al.  A multi-barrier osmotic dilution process for simultaneous desalination and purification of impaired water , 2010 .

[160]  C. D. Moody,et al.  Forward osmosis extractors , 1976 .

[161]  J. McCutcheon,et al.  Influence of concentrative and dilutive internal concentration polarization on flux behavior in forward osmosis , 2006 .

[162]  Chuyang Y. Tang,et al.  Computational fluid dynamics simulations of flow and concentration polarization in forward osmosis membrane systems , 2011 .

[163]  A. Yokochi,et al.  Application of forward osmosis in pretreatment of seawater for small reverse osmosis desalination units , 2009 .

[164]  Darren Delai Sun,et al.  A low-energy forward osmosis process to produce drinking water , 2011 .

[165]  Kai Yu Wang,et al.  Highly Water-Soluble Magnetic Nanoparticles as Novel Draw Solutes in Forward Osmosis for Water Reuse , 2010 .

[166]  O. A. Bamaga,et al.  Hybrid FO/RO desalination system: Preliminary assessment of osmotic energy recovery and designs of new FO membrane module configurations , 2011 .

[167]  Sidney Loeb,et al.  One hundred and thirty benign and renewable megawatts from Great Salt lake? The possibilities of hydroelectric power by pressure-retarded osmosis , 2001 .

[168]  Kelly L Smith,et al.  Asymmetric-membrane tablet coatings for osmotic drug delivery , 1995 .

[169]  Marc A. Deshusses,et al.  Direct observation of biofouling in cross-flow microfiltration: mechanisms of deposition and release , 2004 .

[170]  Menachem Elimelech,et al.  Influence of membrane support layer hydrophobicity on water flux in osmotically driven membrane processes , 2008 .

[171]  Wanqin Jin,et al.  Use of Polyelectrolyte Layer-by-Layer Assemblies as Nanofiltration and Reverse Osmosis Membranes , 2003 .

[172]  Kai Yu Wang,et al.  Developing thin‐film‐composite forward osmosis membranes on the PES/SPSf substrate through interfacial polymerization , 2012 .

[173]  A. Drews,et al.  Recent advances in membrane bioreactors (MBRs): membrane fouling and membrane material. , 2009, Water research.

[174]  Dan Li,et al.  Composite polymer hydrogels as draw agents in forward osmosis and solar dewatering , 2011 .

[175]  J. Schultz,et al.  Hindered Diffusion in Microporous Membranes with Known Pore Geometry , 1970, Science.

[176]  D.J.H. Harmsen,et al.  Membrane fouling and process performance of forward osmosis membranes on activated sludge , 2008 .

[177]  Yuan Zhang,et al.  Critical flux and particle deposition of bidisperse suspensions during crossflow microfiltration , 2006 .

[178]  R. E. Pattle.  Production of Electric Power by mixing Fresh and Salt Water in the Hydroelectric Pile , 1954, Nature.

[179]  M. Thring.  World Energy Outlook , 1977 .

[180]  Jean-Philippe Croué,et al.  Fouling characteristics of wastewater effluent organic matter (EfOM) isolates on NF and UF membranes , 2002 .

[181]  M. Elimelech,et al.  The Future of Seawater Desalination: Energy, Technology, and the Environment , 2011, Science.

[182]  S. Loeb,et al.  Performance of permasep B-9 and B-10 membranes in various osmotic regions and at high osmotic pressures , 1978 .

[183]  Andrew L. Zydney,et al.  Stagnant film model for concentration polarization in membrane systems , 1997 .

[184]  Andrea Achilli,et al.  Pressure retarded osmosis: From the vision of Sidney Loeb to the first prototype installation — Review , 2010 .

[185]  Qian Yang,et al.  A novel dual-layer forward osmosis membrane for protein enrichment and concentration , 2009 .

[186]  J. McCutcheon,et al.  Internal concentration polarization in forward osmosis: role of membrane orientation , 2006 .

[187]  Paul Ainsworth,et al.  Evaluation of mass exchange during osmotic dehydration of carrots using response surface methodology , 2004 .

[188]  Hans G.L. Coster,et al.  Direct observation of particle deposition on the membrane surface during crossflow microfiltration , 1998 .

[189]  Chuyang Y. Tang,et al.  Thin-film composite hollow fiber membranes for Pressure Retarded Osmosis (PRO) process with high power density , 2012 .

[190]  Kai Yu Wang,et al.  Integrated forward osmosis–membrane distillation (FO–MD) hybrid system for the concentration of protein solutions , 2011 .

[191]  Benny D. Freeman,et al.  Water Purification by Membranes: The Role of Polymer Science , 2010 .

[192]  Sherub Phuntsho,et al.  A novel low energy fertilizer driven forward osmosis desalination for direct fertigation: Evaluating , 2011 .

[193]  Tzahi Y Cath,et al.  Solute coupled diffusion in osmotically driven membrane processes. , 2009, Environmental science & technology.

[194]  Menachem Elimelech,et al.  Gypsum scaling and cleaning in forward osmosis: measurements and mechanisms. , 2010, Environmental science & technology.

[195]  Ying Ku Lin,et al.  Investigations on the drug releasing mechanism from an asymmetric membrane-coated capsule with an in situ formed delivery orifice. , 2003, Journal of controlled release : official journal of the Controlled Release Society.

[196]  Patrícia Moreira Azoubel,et al.  Influence of the osmotic agent on the osmotic dehydration of papaya (Carica papaya L.) , 2006 .

[197]  Tzahi Y Cath,et al.  Forward osmosis for concentration of anaerobic digester centrate. , 2007, Water research.

[198]  Khaled M Talaat.  Dialysis fluid regeneration by forward osmosis: a feasible option for ambulatory dialysis systems. , 2010, Saudi journal of kidney diseases and transplantation : an official publication of the Saudi Center for Organ Transplantation, Saudi Arabia.

[199]  Ming Ming Ling,et al.  Desalination process using super hydrophilic nanoparticles via forward osmosis integrated with ultrafiltration regeneration , 2011 .

[200]  Minkyu Park,et al.  Simulation of forward osmosis membrane process: Effect of membrane orientation and flow direction of feed and draw solutions , 2011 .

[201]  Gary L. Amy,et al.  Hydrophilic Superparamagnetic Nanoparticles: Synthesis, Characterization, and Performance in Forward Osmosis Processes , 2011 .

[202]  Dana Karl Anderson.  Concentration of Dilute Industrial Wastes by Direct Osmosis , 1977 .

[203]  Hui-Yu Deng,et al.  High flux positively charged nanofiltration membranes prepared by UV-initiated graft polymerization , 2011 .

[204]  Liping Zhu,et al.  A novel positively charged nanofiltration membrane prepared from N, N-dimethylaminoethyl methacrylat , 2011 .

[205]  Zhen He,et al.  Integrating forward osmosis into microbial fuel cells for wastewater treatment, water extraction and bioelectricity generation. , 2011, Environmental science & technology.

[206]  R. Baker,et al.  Membranes for power generation by pressure-retarded osmosis , 1981 .

[207]  Robert L McGinnis,et al.  Desalination by ammonia–carbon dioxide forward osmosis: Influence of draw and feed solution concentrations on process performance , 2006 .

[208]  Menachem Elimelech,et al.  Chemical and physical aspects of organic fouling of forward osmosis membranes , 2008 .

[209]  Mario García,et al.  Effects of chitosan coating on mass transfer during osmotic dehydration of papaya , 2010 .