Evaluation of ethanol as draw solute for forward osmosis (FO) process of highly saline (waste)water

Kim, Jungwon; Kim, Jung-Hyun; Lim, Jihun; Hong, Seungkwan

doi:10.1016/j.desal.2019.01.012

Cited by 20 publications

(14 citation statements)

References 48 publications

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“…[ 170 ] Kim et al demonstrated the suitability of ethanol as FO draw solution. [ 171 ] Apart from exhibiting higher osmotic pressure and water flux that is comparable with NH 4 HCO 3 , ethanol can be easily generated via room temperature vacuum distillation in which the exergy analysis estimated the energy consumption of 8.8 kWh m −3 . Due to the high volatility of ethanol, a highly water/ethanol selective membrane is important to further enhance the water recovery and reduce the loss of draw solute.…”

Section: Strategies For Energy Reduction In Desalination Processesmentioning

confidence: 99%

Energy Efficient Seawater Desalination: Strategies and Opportunities

2021

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With the change in climate patterns, rapid industrialization, and population growth, the increasing water and energy demand became a major concern in the past decades. Desalination has been touted as the answer to the global water crisis, due to its capability in producing high‐quality fresh water from saline water. The continual research and innovations in the desalination field have resulted in the commercialization of large‐scale desalination in many water scarce regions. In the energetic context, all desalination processes are energy intensive. With the necessity to make desalination a more affordable and sustainable process, the energy efficiency of desalination is becoming an important topic. Herein, it is aimed to provide insights into the recent efforts and strategies established to tackle the energy‐related issues of both, thermal‐based and membrane‐based desalination processes. Depending on the principle of various commercial and emerging desalination processes, the directions of energy efficiency improvements, which include operating condition optimization, high‐performance material development, and renewable energy exploitation are discussed. The ideas and strategies reviewed herein, whether in their implementation or theoretical stage, are expected to provide insights into the possible improvement for application in commercial desalination plants.

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Section: Strategies For Energy Reduction In Desalination Processesmentioning

confidence: 99%

Energy Efficient Seawater Desalination: Strategies and Opportunities

2021

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“…The binary H 2 O, EtOH and NaCl permeability coefficients are characterized experimentally in [10,39].…”

Section: Regression Of Excess Permeability Coefficientsmentioning

confidence: 99%

“…The proposed regression framework via excess solute permeabilities appears to be effective in capturing solvent and solute fluxes simultaneously, across large concentration ranges for the feed and draw solutions, and in both membrane orientations. To ascertain the improvements in model predictions relative to the superposition theory, we apply the model to simulate the forward osmosis process investigated by [10], as illustrated in Fig. 9A.…”

Section: Comparisons With Superposition Theorymentioning

confidence: 99%

“…By leveraging the osmotic pressure of a draw stream, the hydraulic pressurization requirements of OAMP are significantly reduced compared to RO, and the maximum water recovery is no longer limited by the burst pressures of membrane vessels. To optimize OAMP, new membranes with novel structural supports to reduce internal concentration polarization [9], and the development of draw solutions for high salinity feed streams [10] are subjects of recent research.…”

Section: Introductionmentioning

confidence: 99%

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Multicomponent Fickian solution-diffusion model for osmotic transport through membranes

Foo

Rehman

Coombs

et al. 2021

Journal of Membrane Science

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“…The specific reverse draw salt flux (SRSF, g/L) is defined as the ratio of the reverse salt flux to the water flux, representing that the reverse flux selectivity is independent of the support layer structural parameter as well as bulk DS concentration. [27] It is also an intrinsic parameter determined by water permeability (A) and salt permeability (B), assuming that the osmotic pressure of solution follows the Van't Hoff equation:…”

Section: Evaluation Of the Fo Performancementioning

confidence: 99%

Forward osmosis for multi‐effect distillation brine treatment: Performance and concentration polarization evaluation

et al. 2021

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The discharge of reject brine from seawater desalination processes is a threat to marine ecosystems. This study investigated the feasibility of forward osmosis (FO) for the treatment of reject brine from multi-effect distillation (MED) systems. The performances of two commercial FO membranes (ie, cellulose triacetate (CTA) and polyamide thin film composite (TFC) membranes) were compared. The effects of operating conditions, such as draw solution concentration, cross-flow velocity, and temperature, on concentration polarization

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Evaluation of ethanol as draw solute for forward osmosis (FO) process of highly saline (waste)water

Cited by 20 publications

References 48 publications

Energy Efficient Seawater Desalination: Strategies and Opportunities

Energy Efficient Seawater Desalination: Strategies and Opportunities

Multicomponent Fickian solution-diffusion model for osmotic transport through membranes

Forward osmosis for multi‐effect distillation brine treatment: Performance and concentration polarization evaluation

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