Microalgal dewatering with focus on filtration and antifouling strategies: A review

Mkpuma, Victor Okorie; Moheimani, Navid R.; Ennaceri, Houda

doi:10.1016/j.algal.2021.102588

Cited by 32 publications

(3 citation statements)

References 134 publications

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“…As shown in Fig. 6 for hydrophilic surface coated membranes with tightly hydrated surfaces, the hydrophilic surface forms a layer of water on the membrane surface, which restricts the space for the attachment of pollutants and thus resists their deposition on the membrane surface, which manifests itself as a mechanism of fouling resistance [28] . At present, there have been many studies on the modification of hydrophilic membrane preparation.…”

Section: Modification Of Membranesmentioning

confidence: 99%

Membrane fouling and control in algae-rich water treatment

Gao,

Xie

2024

E3S Web Conf.

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Microfiltration and ultrafiltration membrane technology has now become one of the important methods for algae-rich water treatment due to its better solid-liquid separation effect and microbial retention capacity, while the existence of membrane fouling has been restricting the full-scale promotion and application of low-pressure membrane technology. The main foulants causing membrane fouling in algal-rich water include algal cells, algal debris and algal organic matter AOM (EOM and IOM). In this paper, the mechanism of membrane fouling caused by algal foulants in MF/UF for high algal water treatment is analysed in terms of both individual and composite fouling. Both individual and composite effects of algal foulants can lead to severe membrane fouling, in which algal cells and algal debris mainly dominate the accumulation of filter cake, while AOM mainly leads to membrane pore blockage membrane fouling is exacerbated by compounding effects, with severe reversible and irreversible fouling caused by filter cake formation and membrane pore shrinkage. This paper also discusses several common membrane fouling control methods, including pretreatment (oxidation, coagulation, combined oxidation-coagulation and adsorption) and membrane modification, and it is found that these several membrane fouling control methods can achieve good results.

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Section: Modification Of Membranesmentioning

confidence: 99%

Membrane fouling and control in algae-rich water treatment

Gao,

Xie

2024

E3S Web Conf.

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“…Due to its simplicity and low energy requirements, membrane microfiltration of algal cultures has been shown to be a workable option that can recover nearly all of the biomass [119,120]. Numerous researchers have also looked at the use of membrane technology in algal biorefineries for capturing algal biomass.…”

Section: Evaluation Of Algal Growth and Biomass Productivitymentioning

confidence: 99%

Algal-Based Hollow Fiber Membrane Bioreactors for Efficient Wastewater Treatment: A Comprehensive Review

Javed,

Mukhtar,

Zieniuk

et al. 2024

Fermentation

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The treatment of living organisms is a critical aspect of various environmental and industrial applications, ranging from wastewater treatment to aquaculture. In recent years, algal-based hollow fiber membrane bioreactors (AHFMBRs) have emerged as a promising technology for the sustainable and efficient treatment of living organisms. This review provides a comprehensive examination of AHFMBRs, exploring their integration with algae and hollow fiber membrane systems for diverse applications. It also examines the applications of AHFMBRs in various areas, such as nutrient removal, wastewater treatment, bioremediation, and removal of pharmaceuticals and personal care products. The paper discusses the advantages and challenges associated with AHFMBRs, highlights their performance assessment and optimization strategies, and investigates their environmental impacts and sustainability considerations. The study emphasizes the potential of AHFMBRs in achieving enhanced nutrient removal, bioremediation, and pharmaceutical removal while also addressing important considerations such as energy consumption, resource efficiency, and ecological implications. Additionally, it identifies key challenges and offers insights into future research directions. Through a systematic analysis of relevant studies, this review aims to contribute to the understanding and advancement of algal-based hollow fiber membrane bioreactors as a viable solution for the treatment of living organisms.

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“…Membrane microalgae fouling initiates with the deposition and accumulation of microalgal organic matters, algal cells, and transparent exopolymer particles (TEP). The process can be further elaborated as a multiple-stage process, which involves pore-blocking, gel-layer formation, multicellular algal complex cake layer formation, and the random distribution of foulants throughout the cake layer and membrane surface [115]. Complex fouling mechanisms take place during the filtration of microalgae cultured in wastewater medium.…”

Section: Membrane Fouling In Microalgae-wastewater Mediummentioning

confidence: 99%

Microalgae-Enabled Wastewater Remediation and Nutrient Recovery through Membrane Photobioreactors: Recent Achievements and Future Perspective

et al. 2022

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The use of microalgae for wastewater remediation and nutrient recovery answers the call for a circular bioeconomy, which involves waste resource utilization and ecosystem protection. The integration of microalgae cultivation and wastewater treatment has been proposed as a promising strategy to tackle the issues of water and energy source depletions. Specifically, microalgae-enabled wastewater treatment offers an opportunity to simultaneously implement wastewater remediation and valuable biomass production. As a versatile technology, membrane-based processes have been increasingly explored for the integration of microalgae-based wastewater remediation. This review provides a literature survey and discussion of recent progressions and achievements made in the development of membrane photobioreactors (MPBRs) for wastewater treatment and nutrient recovery. The opportunities of using microalgae-based wastewater treatment as an interesting option to manage effluents that contain high levels of nutrients are explored. The innovations made in the design of membrane photobioreactors and their performances are evaluated. The achievements pave a way for the effective and practical implementation of membrane technology in large-scale microalgae-enabled wastewater remediation and nutrient recovery processes.

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Microalgal dewatering with focus on filtration and antifouling strategies: A review

Cited by 32 publications

References 134 publications

Membrane fouling and control in algae-rich water treatment

Membrane fouling and control in algae-rich water treatment

Algal-Based Hollow Fiber Membrane Bioreactors for Efficient Wastewater Treatment: A Comprehensive Review

Microalgae-Enabled Wastewater Remediation and Nutrient Recovery through Membrane Photobioreactors: Recent Achievements and Future Perspective

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