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Letteratura scientifica selezionata sul tema "Saline water conversion – Reverse osmosis process"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 9 febbraio 2022

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Articoli di riviste sul tema "Saline water conversion – Reverse osmosis process"

Stein, Shaked, Orit Sivan, Yoseph Yechieli, and Roni Kasher. "Redox condition of saline groundwater from coastal aquifers influences reverse osmosis desalination process." Water Research 188 (January 2021): 116508. http://dx.doi.org/10.1016/j.watres.2020.116508.

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Rosentreter, Hanna, Marc Walther, and André Lerch. "Partial Desalination of Saline Groundwater: Comparison of Nanofiltration, Reverse Osmosis and Membrane Capacitive Deionisation." Membranes 11, no. 2 (February 12, 2021): 126. http://dx.doi.org/10.3390/membranes11020126.

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Saline groundwater (SGW) is an alternative water resource. However, the concentration of sodium, chloride, sulphate, and nitrate in SGW usually exceeds the recommended guideline values for drinking water and irrigation. In this study, the partial desalination performance of three different concentrated SGWs were examined by pressure-driven membrane desalination technologies: nanofiltration (NF), brackish water reverse osmosis (BWRO), and seawater reverse osmosis (SWRO); in addition to one electrochemical-driven desalination technology: membrane capacitive deionisation (MCDI). The desalination

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Abdelkader, Sana, Ali Boubakri, Sven Uwe Geissen, and Latifa Bousselmi. "Direct contact membrane distillation applied to saline wastewater: parameter optimization." Water Science and Technology 77, no. 12 (June 18, 2018): 2823–33. http://dx.doi.org/10.2166/wst.2018.274.

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Abstract Freshwater availability is increasingly under pressure from growing demand, resource depletion and environmental pollution. Desalination of saline wastewater is an option for supplying households, industry and agriculture with water, but technologies such as reverse osmosis, evaporation or electrodialysis are energy intensive. By contrast, membrane distillation (MD) is a competitive technology for water desalination. In our study, response surface methodology was applied to optimize the direct contact membrane distillation (DCMD) treatment of synthetic saline wastewater. The aim was t

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Wang, Jingbo, Dian Tanuwidjaja, Subir Bhattacharjee, Arian Edalat, David Jassby, and Eric M. V. Hoek. "Produced Water Desalination via Pervaporative Distillation." Water 12, no. 12 (December 18, 2020): 3560. http://dx.doi.org/10.3390/w12123560.

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Herein, we report on the performance of a hybrid organic-ceramic hydrophilic pervaporation membrane applied in a vacuum membrane distillation operating mode to desalinate laboratory prepared saline waters and a hypersaline water modeled after a real oil and gas produced water. The rational for performing “pervaporative distillation” is that highly contaminated waters like produced water, reverse osmosis concentrates and industrial have high potential to foul and scale membranes, and for traditional porous membrane distillation membranes they can suffer pore-wetting and complete salt passage. I

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Kadhom, Mohammed, Noor Albayati, Suhaib Salih, Mustafa Al-Furaiji, Mohamed Bayati, and Baolin Deng. "Role of Cellulose Micro and Nano Crystals in Thin Film and Support Layer of Nanocomposite Membranes for Brackish Water Desalination." Membranes 9, no. 8 (August 15, 2019): 101. http://dx.doi.org/10.3390/membranes9080101.

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Reverse osmosis is a major process that produces soft water from saline water, and its output represents the majority of the overall desalination plants production. Developing efficient membranes for this process is the aim of many research groups and companies. In this work, we studied the effect of adding cellulose micro crystals (CMCs) and cellulose nano crystals (CNCs) to the support layer and thin film nanocomposite (TFN) membrane on the desalination performance. SEM, TEM, ATR-FTIR, and contact angle measurements were used to characterize the membrane’s properties; and membrane’s performa

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Saeed, Mohamed O., Ghazzai F. Al-Otaibi, and M. I. Mohamed Ershath. "Fungal and marine shell fouling in desalination plant equipment." Journal of Water Reuse and Desalination 9, no. 4 (August 13, 2019): 423–30. http://dx.doi.org/10.2166/wrd.2019.026.

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Abstract The Saudi Arabian Saline Water Conversion Corporation (SWCC) aims to maintain an uninterrupted desalinated water output and has tasked its Desalination Technologies Research Institute (DTRI) with trouble-shooting operational problems and unusual events faced by its desalination plants. Three events were reported and investigated by DTRI. Two were found to involve fungal fouling, and one was found to involve fouling by marine shells. One case of fungal fouling involved a new seawater reverse osmosis membrane and the plant was advised to review the handling and storage practice of membr

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Mulopo, J., and V. Radebe. "Recovery of calcium carbonate from waste gypsum and utilization for remediation of acid mine drainage from coal mines." Water Science and Technology 66, no. 6 (September 1, 2012): 1296–300. http://dx.doi.org/10.2166/wst.2012.322.

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The recovery of calcium carbonate from waste gypsum (a waste product of the reverse osmosis (RO) desalination process) was tested using sodium carbonate. Batch recovery of calcium carbonate from waste gypsum slurries by reacting with sodium carbonate under ambient conditions was used to assess the technical feasibility of CaCO3 recovery and its use for pre-treatment of acid mine drainage (AMD) from coal mines. The effect of key process parameters, such as the slurry concentration (%) and the molar ratio of sodium carbonate to gypsum were considered. It was observed that batch waste gypsum conv

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Caballero, Alejandro, Pablo Caballero, Federico León, Bruno Rodríguez-Morgado, Luis Martín, Juan Parrado, Jenifer Vaswani, and Alejandro Ramos-Martín. "Conversion of Whey into Value-Added Products through Fermentation and Membrane Fractionation." Water 13, no. 12 (June 9, 2021): 1623. http://dx.doi.org/10.3390/w13121623.

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The cheese whey (95% composed of water) is an effluent produced in the cheese industry, of which more than 1.5 million tons are generated in Spain, constituting a serious environmental problem. The process starts with a new fermentative/enzymatic technology that totally converts whey, mainly composed by lactose, proteins, and salts, into a fermented product with higher added value. This new product is mainly composed by lactic acid bacteria biomass, ammonium lactate, and a protein hydrolysate. To separate valuable fractions, this fermented product is processed by a two-stage membrane system, w

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Leandro, Maria José, Susana Marques, Belina Ribeiro, Helena Santos, and César Fonseca. "Integrated Process for Bioenergy Production and Water Recycling in the Dairy Industry: Selection of Kluyveromyces Strains for Direct Conversion of Concentrated Lactose-Rich Streams into Bioethanol." Microorganisms 7, no. 11 (November 9, 2019): 545. http://dx.doi.org/10.3390/microorganisms7110545.

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Dairy industries have a high environmental impact, with very high energy and water consumption and polluting effluents. To increase the sustainability of these industries it is urgent to implement technologies for wastewater treatment allowing water recycling and energy savings. In this study, dairy wastewater was processed by ultrafiltration and nanofiltration or ultrafiltration and reverse osmosis (UF/RO) and retentates from the second membrane separation processes were assessed for bioenergy production. Lactose-fermenting yeasts were tested in direct conversion of the retentates (lactose-ri

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Sharma, Nisha, Jaspal Singh, and Barjinder Kaur. "Performance Study of Some Reverse Osmosis Systems for Removal of Uranium and Total Dissolved Solids in Underground Waters of Punjab State, India." JOURNAL OF ADVANCES IN PHYSICS 4, no. 2 (April 22, 2014): 467–76. http://dx.doi.org/10.24297/jap.v4i2.2033.

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Radionuclides (uranium, thorium, radium, radon gas etc.) are found naturally in air, water, soil and rock. Everyday, we ingest and inhale these radionuclides through the air we breathe and through food and water we take. Out of the internal exposure via ingestion of radionuclides, water contributes the major portion. The natural radioactivity of water is due to the activity transfer from bed rock and soils. In our surveys carried out in the past few years, we have observed high concentrations of uranium and total dissolved solids (TDS) in drinking waters of some southern parts of Punjab State

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Tesi sul tema "Saline water conversion – Reverse osmosis process"

Miyashita, Yu. "Removal of N-nitrosamine by Nanofiltration and Reverse Osmosis Membranes." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14490.

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The rejections of selected N-nitrosamines by commonly used high-pressure nanofiltration (NF) and reverse osmosis (RO) membranes were quantitatively evaluated using a bench-scale cross-flow filtration apparatus. The selected nitrosamines included N-nitrosodimethylamine (NDMA), N-nitrosomethylethylamine (NMEA), N-nitrosopyrrolidine (NPYR), N-nitrosodiethylamine (NDEA), N-nitrosodi-n-propylamine (NDPA), N-nitrosodi-n-butylamine (NDBA) and N-nitrosodiphenylamine (NDPHA). Nitrosamine rejections were evaluated under steady state at elevated feed concentrations, since NDMA rejections were found to be

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Otto, Dietmar Norman. "The effect of forward flushing, with permeate, on gypsum scale formation during reverse osmosis treatment of CaSO4-rich water in the absence of anti-scalant." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95887.

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Thesis (MEng) -- Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: When desalinating brackish water by reverse osmosis (RO) or other techniques, high overall water recoveries are essential to minimize brine production and the associated disposal costs thereof. As the overall water recovery increases, concentrations of sparingly soluble salts (e.g. barium sulphate, calcium sulphate) reach levels above saturation, especially near the membrane surface, drastically increasing the scaling propensity. Antiscalants are typically dosed into the feed water to prevent such scaling during RO desalinati

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Shames, Elhashmi Adel. "An investigation into the effect of different types of antiscalant on desalination reverse osmosis (Ro) membrane flux." Thesis, Cape Peninsula University of Technology, 2012. http://hdl.handle.net/20.500.11838/2609.

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Thesis (MTech (Chemical Engineering))--Cape Peninsula University of Technology, 2012.<br>Recently much research and development has been done into the creation of desalination systems in South Africa, with particular emphasis on the commercialisation of desalination plants that serve local communities. This has been successful - there are currently plants running at Bitlerfontien, Bushmans River Mouth and Robben Island - although membrane fouling and scaling remains a problem associated with membrane desalination, as it does worldwide The aim of this study was to Investigate the performa

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Koen, Louis Johannes. "Ultrasonic-time-domain-reflectometry as a real time non-destructive visualisation technique of concentration polarisation and fouling on reverse osmosis membranes." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/52042.

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Thesis (MEng)--Stellenbosch University, 2000.<br>ENGLISH ABSTRACT: Fouling is readily acknowledged as one of the most critical problems limiting the wider application of membranes in liquid separation processes. A better understanding of fouling layer formation and its monitoring is needed in order to improve on existing cleaning techniques. Plant operation can be optimised if fouling can be monitored by noninvasion means either on the plant itself or on an attached monitoring device. The overall scope of this research was to develop a non-destructive, real-time, in situ visualisation t

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Martinetti, C. Riziero. "Membrane contractor processes for desalination of brackish water reverse osmosis brines /." abstract and full text PDF (UNR users only), 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1455665.

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Thesis (M.S.)--University of Nevada, Reno, 2008.<br>"May, 2008." Includes bibliographical references (leaves 35-38). Library also has microfilm. Ann Arbor, Mich. : ProQuest Information and Learning Company, [2008]. 1 microfilm reel ; 35 mm. Online version available on the World Wide Web.

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Wang, Yuan School of Chemical Engineering &amp Industrial Chemistry UNSW. "Composite fouling of calcium sulfate and calcium carbonate in a dynamic seawater reverse osmosis unit." Awarded by:University of New South Wales. School of Chemical Engineering and Industrial Chemistry, 2005. http://handle.unsw.edu.au/1959.4/26007.

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Deposition of calcium carbonate (CaCO3) and calcium sulfate (CaSO4) causes serious processing problems and limits the productivity of seawater reverse osmosis (RO) desalination. The interactions between CaSO4 and CaCO3 in the dynamic seawater RO systems have been neglected previously because conventional studies mainly focused on individual compounds or mixed compounds in batch systems. The present work evaluates composite fouling behavior of CaSO4 and CaCO3 in a dynamic RO unit. The fouling experiments were performed at constant pressure and velocity by a partial recycling mode which permeate

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Wild, Peter Martin. "Development, optimization and implementation of the design for a centrifugal reverse-osmosis desalination system." Thesis, 1994. https://dspace.library.uvic.ca//handle/1828/9471.

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A new method of sea water desalination, Centrifugal Reverse-Osmosis (CRO), is developed from concept to patented design and functional prototype of capacity 11,355 litres of fresh water per day. CRO is shown to have significant benefits relative to the leading existing desalination technology, conventional reverse-osmosis. These benefits include: lower energy consumption, reduced initial and replacement membrane costs, lower noise levels and improved reliability. CRO is projected to show increasing cost efficiency as plant capacity increases. For a relatively large CRO plant, 65lm³ fresh

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Mustafa, Ghulam Mohammad Chemical Sciences &amp Engineering Faculty of Engineering UNSW. "The study of pretreatment options for composite fouling of reverse osmosis membranes used in water treatment and production." 2007. http://handle.unsw.edu.au/1959.4/40882.

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Most common inorganic foulants in RO processes operating on brackish water are calcium carbonate, calcium sulphate and silica. However, silica fouling is the recovery limiting factor in RO system. Silica chemistry is complex and its degree of fouling strongly depends on the silica solubility and its polymerization under different operating conditions of RO process. In several studies carried out in batch and dynamic tests, the presence of polyvalent cations and supersaturation of silica in solutions were found to be the important factors (apart from pH and temperature) that affected the rate o

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Atia, Adam Ahmed. "Technical and Economic Modeling for Sustainable Desalination: Renewable-Powered, Adaptive Reverse Osmosis Desalination with Load Flexibility and Pathways to Zero Liquid Discharge." Thesis, 2021. https://doi.org/10.7916/d8-pe3m-2879.

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Freshwater scarcity is a dire problem for exposed human societies and natural ecosystems—a problem expected to grow worse with anticipated climate change. Reverse osmosis (RO) desalination is currently the most energy-efficient and ubiquitous desalination process used for freshwater production in water-scarce regions. The synergy of high solar radiation and significantly reduced costs in photovoltaics (PV) creates the opportunity for PV to become a dominant and sustainable solution for powering the energy-intensive process of desalination and reducing greenhouse gas emissions.While photovoltai

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Libri sul tema "Saline water conversion – Reverse osmosis process"

Karelin, F. N. Obessolivanie vody obratnym osmosom. Moskva: Stroĭizdat, 1988.

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Lawler, Desmond F. Enhanced reverse osmosis systems: Intermediate treatment to improve recovery. Denver, Colo: Water Research Foundation, 2011.

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Eisenhauer, Roy J. Plugging factor monitor membrane quality acceptance: Flow rate test. Denver, Colo: Applied Sciences Branch, Research and Laboratory Services Division, Denver Office, U.S. Dept. of the Interior, Bureau of Reclamation, 1991.

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Ho, G. E. Sola r powered desalination for remote areas: Results of research carried out as MERIWA Project No. E239 at the Institute for Environmental Science at Murdoch University. East Perth, WA: Distributed by MERIWA, 1996.

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Hooker, Dick. Major reverse osmosis system: Components for watertreatment : the global market. Norwalk, CT: Business Communications Co., 2001.

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Trussell, R. Shane. Reclaimed water desalination technologies: A full-scale performance and cost comparison between electrodialysis reversal and microfiltration/reverse osmosis. Alexandria, VA: WateReuse Research Foundation, 2012.

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AWWA, Seminar on Membrane Processes Principles and Practices (1988 Orlando Fla ). Proceedings. Denver, CO: American Water Works Association, 1988.

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Nancy, Nelson, Yang Bayard, and United States. Bureau of Reclamation. Denver Office. Applied Sciences Branch., eds. Plugging factor monitor membrane quality acceptance: Bubble point test. Denver, Colo: Applied Sciences Branch, Research and Laboratory Services Division, Denver Office, U.S. Dept. of the Interior, Bureau of Reclamation, 1991.

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W, Kaakinen J., and United States. Bureau of Reclamation. Denver Office. Applied Sciences Branch., eds. Chilled chlorine storage testing of reverse osmosis membranes: Phase I. Denver, Colo: Applied Sciences Branch, Research and Laboratory Services Division, Denver Office, Bureau of Reclamation, U.S. Dept. of the Interior, 1993.

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Atti di convegni sul tema "Saline water conversion – Reverse osmosis process"

Hessami, Mir-Akbar, Nathan Hall, and Adam Robb. "An Overview of Reverse Osmosis Water Desalination and the Solution Diffusion Mathematical Model." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-10559.

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The planet Earth has an abundant supply of saline water but it requires special treatment to ensure the supply of potable water to sustain life on Earth. Water desalination can be used to achieve this objective. In order to understand this process, research was undertaken on water desalination with a focus on reverse osmosis (RO) in order to develop a simple mathematical model of this process. Mathematical modelling can be used to describe, explain and calculate the solvent and solute fluxes through RO membranes. Such techniques are commonly used by membrane manufacturers to develop proprietar

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Gulied, Mona Hersi, Ahmed Al Nouss, Tasneem ElMakki, Fathima Sifani Zavahir, and Dong Suk han. "Feasibility and Cost Optimization study of Osmotic Assisted Reverse Osmosis Process for Brine Management." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0031.

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Due to the excessive demand to desalinate seawater to satisfy the domestic need in Qatar, it was needed to develop safe and cost effective desalination processes with the consideration of stringent regulation for water quality production and wastewater/brine discharge quality. The direct disposal of brines to the environment raised potential negative impact to the aquatic system and therefore the best practice is to minimize the volume of brine production and reuse it for beneficiary application. Several brine-dewatering techniques include both evaporative and non-evaporative approaches, which

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Emdadi, Arash, Yunus Emami, Mansour Zenouzi, Amir Lak, Behzad Panahirad, Aydin Lotfi, Farshad Lak, and Gregory J. Kowalski. "Potential of Electricity Generation by the Salinity Gradient Energy Conversion Technologies in the System of Urmia Lake-Gadar Chay River." In ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/es2014-6310.

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Energy production from salinity gradients is one of the developing renewable energy sources, and has significant potential for satisfying electrical demands. Urmia Lake is the second hyper-saline lake in the world and there is a significant salinity gradient between the lake’s water and the waters of those rivers that flow into the lake. A methodology for determining the feasibility for electrical production using Salinity Gradient Power (SGP) is developed for two different types of systems using this location as an example. Reverse Electrodialysis (RED) and Pressure Retarded Osmosis (PRO), Th

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Emdadi, Arash, Mansour Zenouzi, and Gregory J. Kowalski. "Determining the Potential of Salinity Gradient Energy Source Using an Exergy Analysis." In ASME 2016 10th International Conference on Energy Sustainability collocated with the ASME 2016 Power Conference and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/es2016-59532.

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Mixing of fresh (river) water and salty water (seawater or saline brine) in a control fashion would produces an electrical energy known as salinity gradient energy (SGE). Two main conversion technologies of SGE are membrane-based processes; pressure retarded osmosis (PRO) and reverse electrodialysis (RED). In PRO, semipermeable membranes placed between the two streams of solutions allow the transport of water from low-pressure diluted solution to high-pressure concentrated solution. RED requires two alternating semipermeable membranes that allow the diffusion of the ions but not the flow of H2

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