The role of adsorption in microalgae biological desalination: Salt removal from brackish water using Scenedesmus obliquus

Wei, Jing; Shen, Guangzhu; Yang, Xing; Li, Ming

doi:10.1016/j.desal.2020.114616

Cited by 48 publications

(21 citation statements)

References 33 publications

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“…Wei et al studied the mechanisms of the microalgae biological desalination process based on the salt removal performance of Scenedesmus obliquus . They suggested that the salt removal is attributed to two main processes: absorption and adsorption.…”

Section: Salt Removal Mechanisms For Algae-based Desalinationmentioning

confidence: 99%

“…Biosorption plays a major role in the salt removal process. Wei et al investigated the salt removal performance of microalgae S. obliquus , and they found 0.5 g/L NaCl can be removed only after 30 min, which was mainly contributed to the biosorption process . Compared to another study undertaken by the same research group with the same experimental conditions (light, temperature, salt concentration, and nutrients), it took 16 days for the microalgae to remove 0.75 g/L NaCl by the combination of biosorption and bioaccumulation .…”

Section: Salt Removal Mechanisms For Algae-based Desalinationmentioning

confidence: 99%

“…Different functional groups have demonstrated the central role in different salt removal mechanisms . Wei et al utilized the FT-IR to analyze the microalgae ( S. obliquus ) surface properties . They identified different functional groups, including −OH or −NH, −CHO, and −COOH.…”

Section: Salt Removal Mechanisms For Algae-based Desalinationmentioning

confidence: 99%

“…They recommended the salt absorption ability as additional selection criteria. Wei et al investigated mechanisms of microalgae desalination processes and suggested that salt removal is based on both absorption and adsorption processes . As such, using salt removal ability rather than salt absorption ability as the second selection criteria would be more appropriate.…”

Section: Algae Screening and Selectionmentioning

confidence: 99%

“…The thermal driven desalination systems (multistage flash distillation (MSF) and multieffect distillation (MED)) played the dominant roles in the global desalination market until the 1980s. Since then the membrane-based desalination technology (reserve osmosis (RO)) has gradually became the primary desalination technology due to the rapid development of membrane materials and relatively lower energy demand compared to MSF and MED processes. , The RO-based desalination plants currently produce approximately 69% of the total desalinated water, and its exponential growth is expected to continue in the near future. , …”

Section: Introductionmentioning

confidence: 99%

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Algae-Based Approach for Desalination: An Emerging Energy-Passive and Environmentally Friendly Desalination Technology

Zhang

Fan

Gray

et al. 2021

ACS Sustainable Chem. Eng.

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Desalination processes are critical for producing freshwater from salty water, and an algae-based desalination approach has drawn increasing attention as a potential low-cost and passive-energy desalination technology, which could be a competitive solution to desalination in remote areas impacted by water shortages. As the first comprehensive review in this emerging research field, a systematic analysis of the published results from the relevant studies is presented, and algae salt removal mechanisms are summarized. It is suggested that both nonmetabolic biosorption and metabolic-dependent bioaccumulation make contributions to salt removal, but bioaccumulation had a relatively minor role and required a significantly longer time for the reaction compared to the biosorption process. To select the most appropriate algae species for an algae-based desalination process, salt acclimation and salt removal abilities are considered as the two key selection criteria. Process configuration, influent water characteristics, algae harvesting, and reuse should also be taken into consideration during algae screening and selection. Based on the advantages and limitations of an algae-based desalination system, we have suggested different implementation strategies for algae-based desalination systems. Utilization of algae for brackish water treatment could be a more viable option compared to the seawater desalination. Combining an algae-based desalination system with wastewater treatment or the RO process could potentially improve the overall system economic feasibility. The focus areas of future studies are recommended, including system life-cycle cost analysis, energy efficient separation of algae from the effluent, mathematical simulation of the salt removal process, and the effects of engineering approaches on the salt removal process.

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Section: Salt Removal Mechanisms For Algae-based Desalinationmentioning

confidence: 99%

Section: Salt Removal Mechanisms For Algae-based Desalinationmentioning

confidence: 99%

Section: Salt Removal Mechanisms For Algae-based Desalinationmentioning

confidence: 99%

Section: Algae Screening and Selectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Algae-Based Approach for Desalination: An Emerging Energy-Passive and Environmentally Friendly Desalination Technology

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Fan

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et al. 2021

ACS Sustainable Chem. Eng.

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show abstract

Halophiles and their adaptations: A comprehensive review on recent progress and prospects in biodesalination applications

Linekha,

Jeno,

Abirami

et al. 2024

CLEAN Soil Air Water

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Worldwide climate change, rising population, and industrialization have raised the global demand for freshwater. Desalinating brackish water has become a sustainable technology for drinking and agriculture to overcome global water scarcity. Thriving biodesalination technology has become more attractive and eco‐friendly than the present physicochemical desalination methods, which are expensive and energy‐intensive. Researchers are exploring the bioutilization of nature's potential for desalination using halophiles like haloarchaea, halobacteria, halophytic algae, and plants. Biomimetic desalination membranes have been developed, inspired by the desalination mechanism in animals. This comprehensive review explores recent advancements and potential applications of halophiles in biodesalination to exploit them effectively. It provides an overview of the opportunities and challenges associated with harnessing halophiles for the removal of salts from brackish and seawater sources. This review also focuses on insights into biomolecules produced by the halophilic microorganisms and halophytes in the desalination process. Understanding the mechanism of action of these biomolecules will edify the effective unexplored research areas in biomimicry and bioutilization to overcome the existing limitations in water treatment.

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Exploitation of renewable energy sources for water desalination using biological tools

Danaeifar

Ocheje

Mazlomi

2023

Environ Sci Pollut Res

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The role of adsorption in microalgae biological desalination: Salt removal from brackish water using Scenedesmus obliquus

Cited by 48 publications

References 33 publications

Algae-Based Approach for Desalination: An Emerging Energy-Passive and Environmentally Friendly Desalination Technology

Algae-Based Approach for Desalination: An Emerging Energy-Passive and Environmentally Friendly Desalination Technology

Halophiles and their adaptations: A comprehensive review on recent progress and prospects in biodesalination applications

Exploitation of renewable energy sources for water desalination using biological tools

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