Water production from brines by membrane distillation

Godino, M.P.; Peña, Luis Manuel; Rincón, Cristina; Mengual, J.I.

doi:10.1016/s0011-9164(97)00013-1

Cited by 51 publications

(8 citation statements)

References 9 publications

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“…Papers related to MD research in desalination processes increased dramatically in the following years [7,10,24,106]. Different types of hydrophobic membranes and configurations [107,108] were studied for desalination purposes. Coupling membrane distillation with solar energy was studied and has demonstrated the feasibility of solar powered MD in which 60%-80% of the energy was recovered [109][110][111].…”

Section: Applications Of Membrane Distillationmentioning

confidence: 99%

Advances in Membrane Distillation for Water Desalination and Purification Applications

Camacho

Dumée

Zhang

et al. 2013

Water

631

342

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Membrane distillation is a process that utilizes differences in vapor pressure to permeate water through a macro-porous membrane and reject other non-volatile constituents present in the influent water. This review considers the fundamental heat and mass transfer processes in membrane distillation, recent advances in membrane technology, module configurations, and the applications and economics of membrane distillation, and identifies areas that may lead to technological improvements in membrane distillation as well as the application characteristics required for commercial deployment. Keywordsa function of temperature, vapor pressure, and of the gas molecular mass K 0 membrane characteristic defined by Equation (9) Kn Knudsen number K(T) a function of temperature and molecular weight of the gas l mean free path of the molecules l m distance between parallel spacer fibres (m) LEP Limit Entry Pressure (kPa) M molecular mass (g/mol) M w molecular weights of water (g/mol) M a molecular weights of air (g/mol) n number of CNTs per unit cross section in bucky-paper P pressure in the air gap (kPa) half time to reach the maximum intensity-laser flash technique (s) t proportion of conductive heat (balance due to evaporative heat) loss through the membrane T mean temperature in the pores (K)

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Section: Applications Of Membrane Distillationmentioning

confidence: 99%

Advances in Membrane Distillation for Water Desalination and Purification Applications

Camacho

Dumée

Zhang

et al. 2013

Water

631

342

View full text Add to dashboard Cite

show abstract

“…Due to the intrinsic permeability-selectivity trade-off, increasing the water permeability coefficient rapidly increases the salt permeability coefficient, ‫ܤ‬ ∝ ‫ܣ‬ ଷ , as shown in Eq. (12). As the water and salt permeability is increased for a specific structural parameter in Error!…”

Section: Effect Of Membrane Properties On Membrane Area Requirementmentioning

confidence: 99%

“…Recent studies have highlighted the inherent link between water and energy sustainability and emphasized the need to produce water in a manner 2 which minimizes the use of high quality energy resources [4][5][6]. Emergent technologies such as forward osmosis (FO) and membrane distillation which can utilize low-grade waste energy are, therefore, of increasing importance in desalination [6][7][8][9][10][11][12]. FO desalination systems have a wide range of potential water production and purification applications, from hybrid FO-RO schemes for agricultural water that exploit the lower fouling propensity of FO [13], to shale gas water recycling systems that utilize the ability of FO to treat the highly saline waters produced during hydraulic fracturing [14,15].…”

Section: Introductionmentioning

confidence: 99%

Desalination by forward osmosis: Identifying performance limiting parameters through module-scale modeling

Deshmukh

Yip

Lin

et al. 2015

Journal of Membrane Science

117

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In this study, we analyze the effects of membrane properties, namely water permeability, solute permeability, and structural parameter, on the overall performance of an FO membrane module to extract water from simulated seawater (0.6 M NaCl). By considering the thermodynamic limit of operation, we demonstrate that the maximum achievable water recovery is practically independent of membrane properties, and higher maximum water recovery is achievable with counter-current compared to co-current mode. Analysis of the module-scale model indicates that reducing the support layer structural parameter offers substantial reductions in the membrane area required to achieve a specified water recovery. For example, a 25% reduction of the structural parameter of a state-of-the-art thin-film composite (TFC) membrane (from 400 to 300 ߤm) yields a sizable 20% reduction in membrane area. In contrast, quintupling the water permeability coefficient (from 2.0 to 10.0 L m −2 h −1 bar −1 ) of a modern TFC membrane generates only a modest 10% saving in membrane area. In addition, because of the permeabilityselectivity trade-off that governs current polymeric membranes, doubling the water permeability coefficient would cause crippling ~7-fold increases in forward and reverse solute permeation.This quantitative study models the potential performance of a module-scale FO desalination process and firmly highlights the need to prioritize the reduction of support layer mass transport resistances over water permeability increases in membrane development.

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“…Recently, MD applied by several researchers for treating of wastewater from wastewater [7]. Nevertheless, MD investigation mostly at the laboratory stage, for example, the research on desalination, ground water treatment, removing volatile organic components and solar heat utilization, is increased dramatically in the following years [8][9][10][11]. A large number of studies in this field mainly focus on improving the MD membrane properties.…”

Section: Introductionmentioning

confidence: 99%

Vacuum enhanced membrane distillation for trace contaminant removal of heavy metals from water by electrospun PVDF/TiO2 hybrid membranes

Moradi

Monfared

Amini

et al. 2016

Korean J. Chem. Eng.

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Electrospun hybrid membranes were synthesized using electrospinning of Poly (vinylidenefluoride) -titanium tetraisopropoxide (PVDF-TTIP) sol. Asymmetric post-treatment of membrane conducted for deprotonation of titanate and making hydrophilic/hydrophobic dual characteristics. The membranes were characterized by various methods such as wettability, scanning electron microscopy, infrared spectroscopy, X-ray diffraction and liquid entry pressure tests. For evaluating the separation performance, these membranes were applied in the VMD process to treat water heavy metal contaminants. The effects of operating parameters such as flow rate, temperature and membrane properties as porosity, on contaminant removal and producing ultra-pure water have been studied.

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Water production from brines by membrane distillation

Cited by 51 publications

References 9 publications

Advances in Membrane Distillation for Water Desalination and Purification Applications

Advances in Membrane Distillation for Water Desalination and Purification Applications

Desalination by forward osmosis: Identifying performance limiting parameters through module-scale modeling

Vacuum enhanced membrane distillation for trace contaminant removal of heavy metals from water by electrospun PVDF/TiO2 hybrid membranes

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