Sustainable Membrane Distillation Coupled with Solar Pond

Rahaoui, Kawtar; Ding, Lai Chet; Tan, Lip Pong; Mediouri, Wissam; Mahmoudi, Farzaneh; Nakoa, Khaled; Akbarzadeh, Aliakbar

doi:10.1016/j.egypro.2017.03.162

Cited by 43 publications

(9 citation statements)

References 9 publications

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“…The fluid however tends to diffuse and go through a transient state motion. These results will be revealed in numerical simulation of the high fidelity unsteady Navier-Stokes simulation following the authors work [2][3][4].…”

Section: Fig 2 Simplified Salinity-temperature Gradient Domain Withmentioning

confidence: 85%

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Towards Solar Pond Design and Development for Masdar City Environment

Janajreh¹,

Kadi²

2018

IJTEE

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Salinity-gradient solar ponds (SGSP) are water bodies that serves as a solar thermal energy storage system. Establishing a salinity gradient and observing the role of gravity and diffusion between the different zones is key-point in achieving optimal system performance. In this work, a numerical model is developed using computational fluid dynamics (CFD) acting as an initial step in designing and building a solar pond located in Masdar City for the usage of space cooling and desalination. The model is governed by continuity, species transport, momentum, and energy equations of naturally convicted, transient and non-isothermal flow. Results show the stability of the three working zones of the pond if carefully are injected and established. Although diffusion lingers for long time, it is balanced by the gravity forces that slows its propagation and confined it to a thin layer located at corresponding interfaces between zones. This work numerically shows the diffusion influence on the extent of stability of the three core zones of the solar pond. It demonstrates how one could achieve sustainable salinity and temperature gradients to ensure reliable working principle of the sola pond.

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Section: Fig 2 Simplified Salinity-temperature Gradient Domain Withmentioning

confidence: 85%

“…fresh or seawater salinity 1800-35000 ppm) in the thin UCZ, whereas in the NCZ, salinity increases linearly by depth until reaching the saturation level (i.e. 200,000-390,000 ppm) in the LCZ [4]. NCZ is also known as the insulation zone (IZ) as it isolates the two other zones by suppressing its natural convection currents [5].…”

Section: Introductionmentioning

confidence: 99%

Towards Solar Pond Design and Development for Masdar City Environment

Janajreh¹,

Kadi²

2018

IJTEE

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“…MD is a thermal separation process and thus less sensitive to salt concentration than RO or FO [38][39][40]. Moreover, MD can be operated under lower temperature than MED or MVC, allowing the use of low grade heat such as solar thermal energy and waste heat from power plants or other industrial plants [39,41,42]. This makes MD more attractive than other thermal techniques for SWRO brine treatment [40,43,44].…”

Section: Membrane Distillationmentioning

confidence: 99%

Hybrid desalination processes for beneficial use of reverse osmosis brine: Current status and future prospects

Lee

Choi

Park³

et al. 2019

Desalination

121

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As water shortage has increasingly become a serious global problem, desalination using seawater reverse osmosis (SWRO) is considered as a sustainable source of potable water sources. However, a major issue on the SWRO desalination plant is the generation of brine that has potential adverse impact due to its high salt concentration. Accordingly, it is necessary to develop technologies that allows environmentally friendly and economically viable management of SWRO brines. This paper gives an overview of recent research works and technologies to treat SWRO brines for its beneficial use. The treatment processes have been classified into two different groups according to their final purpose: 1) technologies for producing fresh water and 2) technologies for recovering energy. Topics in this paper includes membrane distillation (MD), forward osmosis (FO), pressure-retarded osmosis (PRO), reverse electrodialysis (RED) as emerging tools for beneficial use of SWRO brine. In addition, a new approach to simultaneously recover water and energy from SWRO brine is introduced as a case study to provide insight into improving the sustainability of seawater desalination.

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“…The system required 239 kWh/m 3 specific pumping energy and produced 8 kg/m 3 •day fresh water with a gained output ratio (GOR) as high as 0.71 without heat recovery from condensation. Rahaoui et al used the surface of the solar pond as a heat sink for the permeate water by incorporating floating cooling pipes, which also work as a wave suppressor to reduce wind driven surface mixing [163]. However, the implementation of solar energy in MD desalination plants remains a complicated issue and many techno-economical aspects need to be considered.…”

Section: Membrane Distillation (Md)mentioning

confidence: 99%

Emerging Membrane Technologies for Water and Energy Sustainability: Future Prospects, Constraints and Challenges

Roy

Ragunath

2018

Energies

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The increasing demand for global energy consumption expedites major opportunities for the innovation of green energy technologies. Addressing the issue of sustainable energy is highly crucial for societies in order to maintain secure and balanced future progress in the economy and ecologically. Recently, there has been a growing interest in the development of improved and efficient sustainable energy technologies that are capable of reducing the global environmental footprint. The growing knowledge of hybrid techniques contributes to a decrease in the use of environmental resources while generating energy. However, various factors including the availability of natural resources, and different economic policies restrict the development of sustainable energies. Water and energy are the two major aspects for progressing towards a sustainable future. Recently, membrane-based technologies have begun to play an essential role in the advancement of sustainable energy and water demands. In this review article, the opportunities for membrane technologies dealing with water and energy sustainability have been analyzed.

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Sustainable Membrane Distillation Coupled with Solar Pond

Cited by 43 publications

References 9 publications

Towards Solar Pond Design and Development for Masdar City Environment

Towards Solar Pond Design and Development for Masdar City Environment

Hybrid desalination processes for beneficial use of reverse osmosis brine: Current status and future prospects

Emerging Membrane Technologies for Water and Energy Sustainability: Future Prospects, Constraints and Challenges

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