Air bubbling assisted solar-driven submerged vacuum membrane distillation for aquaculture seawater desalination

Chang, Ying Shi; Ahmad, Abdul Latif; Leo, C.P.; Chan, Derek Juinn Chieh; Ooi, Boon Seng

doi:10.1016/j.jece.2021.107088

Cited by 21 publications

(2 citation statements)

References 41 publications

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“…The specific energy consumption (SEC) is another energy efficiency metric defined as the overall energy consumed to produce 1m 3 of pure water [36], and this value reported in the literature vary anywhere between 1 to 9000 kWh/m 3 . Therefore strategies such as waste heat recovery and recycling of streams are necessary to make the MD process sustainable [37].…”

Section: Energetics and Economicsmentioning

confidence: 99%

Grand Challenges in Membrane Distillation for Desalination and Water Recovery

Kaleekkal

John

2022

AMST

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Seawater desalination and water recovery from wastewater are potential solutions to meet the ever-growing water demand. Membrane distillation (MD) is a next-generation membrane technology that can be harnessed for sustainable water production. The advantages of the MD process and the various operating configurations are discussed. The challenges in membrane development are highlighted, and the various state-of-the-art approaches for improving membrane performance, fouling resistance, anti-wetting character, and minimizing concentration/temperature polarisations are included. The process design is another crucial aspect of the successful implementation of the MD. Response surface methodology and Analysis of Variance (ANOVA) have been explored to identify the optimal operating conditions. Machine learning and computational fluid dynamics analysis (CFD) that have been used to predict the performance and influence of the process parameters are discussed. The energetics and economics of the MD process have also been discussed. The MD process could become sustainable if it utilizes renewable energy sources (solar, geothermal) for bulk heating of the feed. This article highlights the various challenges associated with MD technology and provides an overview of the strategies researched to overcome them.

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Section: Energetics and Economicsmentioning

confidence: 99%

Grand Challenges in Membrane Distillation for Desalination and Water Recovery

Kaleekkal

John

2022

AMST

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“…For example, strains adapted to lower salinities would reduce the production costs and the associated environmental impact of water disposal by reducing the salt concentration and the cost of water desalination treatments. Although RAS requires very little water renewal, water exchanges are occasionally necessary and water treatments for seawater desalinization, (e.g., reverse osmosis) are usually expensive and require high amounts of energy (Sharrer et al 2007;Liu 2013;Chang et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Salinity as a tool for strain selection in recirculating land-based production of Ulva spp. from germlings to adults

Cardoso,

Meiβner,

Sawicki

et al. 2023

J Appl Phycol

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The genus Ulva is globally distributed and has been thoroughly studied because of its functional biochemical composition, rapid growth rates and opportunistic features, and interest in Ulva cultivation is growing worldwide. In Europe, mostly near- and on-shore flow-through cultivation systems are used and land-based recirculating aquaculture systems (RAS) using fresh water or artificial seawater have not been developed for Ulva. While RAS provides quality control and can be located inland, maintenance costs are high. Using selected strains adapted to low-salinity could reduce seawater production costs and improve the economic feasibility. Therefore, our study assessed how salinity can be used as a tool for strain selection and optimization of functional traits. Growth rates and antioxidant activity of three species (four strains) of tubular and foliose Ulva from the NE-Atlantic and Mediterranean (foliose: Ulva lacinulata – two geographical strains, tubular: Ulva linza and Ulva flexuosa) were followed for three weeks at salinities ranging from 10 to 30 PSU. The tubular strains achieved optimal growth at a lower salinity than U. lacinulata. However, growth rates of both foliose strains were higher than of tubular strains, even at sub-optimal salinity. Therefore, U. lacinulata is a good candidate for RAS with artificial seawater, and the cost of salt can be reduced by up to 33.3% (20 PSU) without significantly reducing the growth rate of U. lacinulata. Higher antioxidant activity was achieved by reducing the salinity to 10 PSU for 10 days, suggesting that the functional traits of cultivated Ulva lacinulata can be optimized prior to harvest.

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Recent technological advancements in membrane distillation and solar stills: preheating techniques, heat storage materials, and nanomaterials — a detailed review

Abdelgaied

Seleem

Bassuoni

2022

Environ Sci Pollut Res

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Freshwater and energy are critical components for the growth and progress of societies. The scarcity of freshwater and rapid population growth, especially in remote countries, has led to an urgent need to develop desalination technologies in order to raise its productivity and reduce its energy consumption rates. Membrane distillation is one of the effective methods characterized by its high productivity, but its disadvantage by higher electricity consumption. Also, solar stills are one of the sustainable and economical technologies, but the disadvantage by lower productivity. Accordingly, this manuscript dealt with a comprehensive review and detailed comparison of the most important modifications and innovations that were made to the design of the membrane distillation units, which aim to reduce electricity consumption rates, as well as the design of solar stills, which aims to maximize the productivity and efficiency. This was done by providing a detailed comparison of the most important three axes of modifications and innovations that were addressed by recent previous studies on the design of membrane distillation units and solar stills, and their statement as follows: preheating technology, use of the thermal storage materials, and nanomaterials technology. Finally, based on this review, the authors make some recommendations for future work in the field of solar and membrane desalination.

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Air bubbling assisted solar-driven submerged vacuum membrane distillation for aquaculture seawater desalination

Cited by 21 publications

References 41 publications

Grand Challenges in Membrane Distillation for Desalination and Water Recovery

Grand Challenges in Membrane Distillation for Desalination and Water Recovery

Salinity as a tool for strain selection in recirculating land-based production of Ulva spp. from germlings to adults

Recent technological advancements in membrane distillation and solar stills: preheating techniques, heat storage materials, and nanomaterials — a detailed review

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