Draw solutions for Forward Osmosis process: Osmotic pressure of binary and ternary aqueous solutions of magnesium chloride, sodium chloride, sucrose and maltose

Hamdan, Malak; Sharif, Adel O.; Derwish, G.A.W.; Al-aibi, Sami; Altaee, Ali

doi:10.1016/j.jfoodeng.2015.01.010

Cited by 58 publications

(28 citation statements)

References 26 publications

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“…However, the best candidates for fresh water recovery that have both energy efficiency and a compact design are processes typically used in seawater desalination, including electrodialysis [26][27][28], reverse osmosis [29], and membrane distillation [16][17][18][19][20][21][22]. The use of membrane contactors with inorganic salt solutions has been used for a number of processes, including but not limited to dehumidification, forward osmosis, and water treatment [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38]. Membrane distillation (MD), e.g.…”

Section: Solution Regenerationmentioning

confidence: 99%

Vacuum membrane distillation of liquid desiccants utilizing hollow fiber membranes

Lefers

Bettahalli

Fedoroff

et al. 2018

Separation and Purification Technology

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This paper documents the testing of a vacuum membrane distillation system intended for use with liquid desiccants. Liquid desiccants offer the possibility for low-energy, ambient temperature dehumidification. Effective desalination and purification of diluted desiccants outputs two important products: a concentrated desiccant for reuse in dehumidification and fresh water. In this study, vacuum membrane distillation was used in the laboratory to purify diluted liquid desiccants. Calcium chloride and magnesium chloride were the desiccants selected for testing. Desiccant solutions were pumped through the lumens of poly(vinylidene fluoride) (PVDF) hollow fiber membranes at varying feed inlet temperatures, solution velocity rates and vacuum set points during membrane distillation. An average flux of 8 kg m-2 h-1 was obtained using 30 wt% magnesium chloride solution at a temperature of 50 °C while applying vacuum to achieve 25 mbar absolute pressure on the air side of the membrane. The results are promising for the development of a full-scale vacuum membrane distillation process for desiccant solution regeneration and fresh water recovery. In addition, the recovered condensate was of sufficient quality for use in agricultural irrigation or drinking water.

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Section: Solution Regenerationmentioning

confidence: 99%

Vacuum membrane distillation of liquid desiccants utilizing hollow fiber membranes

Lefers

Bettahalli

Fedoroff

et al. 2018

Separation and Purification Technology

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“…The most commonly used combination is sucrose with sodium chloride (NaCl). The NaCl has a higher osmotic pressure than sucrose due to its ionic characteristics, which favors the mass transfer between the solution and food (de Jesus Junqueira, Gomez Corrêa, de Mendonça, Resende, & de Barros Vilas Boas, 2017;Hamdan, Sharif, Derwish, Al-Aibi, & Altaee, 2015;Tarefe et al, 2016). Another combination studied is the addition of calcium salts to decrease the tissue damage during the OD process.…”

Section: Practical Applicationsmentioning

confidence: 99%

Combined drying of Nopal pads ( Opuntia ficus‐indica ): Optimization of osmotic dehydration as a pretreatment before hot air drying

Rodríguez

Sancho

Barrio

et al. 2019

J Food Process Preserv

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The aim of this work was to optimize the osmotic dehydration (OD) as a pretreatment before hot air drying (HAD) in Nopal pads. A Box–Behnken experimental design was used to optimize the OD conditions with respect to physicochemical and chromatic parameters, and mechanical properties of Nopal pads. Factors studied were: Three concentrations of sucrose (30, 40, and 50°Brix), calcium lactate (1, 2, and3%), and immersion time (1.5, 2.5, and 3.5 hr). Results showed that sucrose concentration and immersion time were the variables with higher influence. Quality properties mentioned before and the final mineral content of the dried samples (at 60°C for 48 hr) were analyzed. The combined drying (OD + HAD) reduced the moisture content in the range of 23% to 30% compared to HAD alone. It was found that the optimization of OD allowed preserving the quality properties, being a good alternative to give an added value for dried Nopal pads. Practical applications Nopal has important bioactive properties for both humans and animal diets, since it is a rich source of vitamins, minerals, and fibers. However, the main problem of its production is that post harvesting waste is greater than 50%. For this reason, there is a great interest to study inexpensive preservation methods that allow keeping the main attributes of processed fruits. The osmotic dehydration (OD) and the hot air drying (HAD) are two simple and inexpensive techniques which can be applied by both the food industry and small‐scale food producers. In the present study, the optimization of OD as a pretreatment before HAD was a reliable tool to preserve the quality properties of Nopal pads.

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“…Upper critical solution temperature (UCST) ionic liquid [81], ammonium iodide salts [82], lower critical solution temperature (LCST) ionic liquid [83], thermally responsive polyionic liquid hydrogels [84][85][86], thermosensitive copolymer [54], ionic hydrogels [34], thermo-sensitive polyelectrolyte [87], phase transition materials [88], CO 2 switchable dual responsive polymers [89,90], thermosensitive polymer coated magnetic nanoparticles [38], gas-responsive cationic microgels [91] MD 2-Methylimidazole salt [60], Na + -functionalized carbon quantum dots (Na-CQDs) [92], dendrimer [93], poly (aspartic acid sodium salt) [55], multi-charged oxalic acid complexes [94] Electric energy RO Inorganic salt (NaCl [95,96], MgCl 2 [95], KNO 3 [33]), organic ionic salts [97], glucose and sucrose miscible liquids [63] NF divalent metal salt (Na 2 SO 4 , MgSO 4 ) [98], EDTA sodium salt [21], metal complexes [27,59,99], poly (4-styrenesulfonic acid-co-maleic acid) [69], novel carboxyethyl amine sodium salts [100], organic phosphonate salts [101] UF Thermosensitive polyelectrolyte [102], surface modified MNPs [37,39], phosphatic surfactant [103], micellar solution [58,104], sodium polyacrylate…”

Section: Classifications Of Ds Based On the Types Of Energy Used In Rmentioning

confidence: 99%

“…According to the different critical dissolution temperatures, they are divided into UCST [81] and LCST materials [83][84][85]107]. This category of solutes mainly includes the ionic gels [34], the thermo-sensitive copolymer [54], the CO 2 response SPS [89,95], and the thermosensitive polyelectrolyte [87].…”

Section: Phase Transition Materialsmentioning

confidence: 99%

Recent Advance on Draw Solutes Development in Forward Osmosis

Long

Jia

et al. 2018

Processes

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In recent years, membrane technologies have been developed to address water shortage and energy crisis. Forward osmosis (FO), as an emerging membrane-based water treatment technology, employs an extremely concentrated draw solution (DS) to draw water pass through the semi-permeable membrane from a feed solution. DS as a critical material in FO process plays a key role in determining separation performance and energy cost. Most of existing DSs after FO still require a regeneration step making its return to initial state. Therefore, selecting suitable DS with low reverse solute, high flux, and easy regeneration is critical for improving FO energy efficiency. Numerous novel DSs with improved performance and lower regeneration cost have been developed. However, none reviews reported the categories of DS based on the energy used for recovery up to now, leading to the lack of enough awareness of energy consumption in DS regeneration. This review will give a comprehensive overview on the existing DSs based on the types of energy utilized for DS regeneration. DS categories based on different types of energy used for DS recovery, mainly including direct use based, chemical energy based, waste heat based, electric energy based, magnetic field energy based, and solar energy based are proposed. The respective benefits and detriments of the majority of DS are addressed respectively according to the current reported literatures. Finally, future directions of energy applied to DS recovery are also discussed.

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Draw solutions for Forward Osmosis process: Osmotic pressure of binary and ternary aqueous solutions of magnesium chloride, sodium chloride, sucrose and maltose

Cited by 58 publications

References 26 publications

Vacuum membrane distillation of liquid desiccants utilizing hollow fiber membranes

Vacuum membrane distillation of liquid desiccants utilizing hollow fiber membranes

Combined drying of Nopal pads ( Opuntia ficus‐indica ): Optimization of osmotic dehydration as a pretreatment before hot air drying

Recent Advance on Draw Solutes Development in Forward Osmosis

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