Feasibility of membrane processes for the recovery and purification of bio-based volatile fatty acids: A comprehensive review

Aktij, Sadegh Aghapour; Zirehpour, Alireza; Mollahosseini, Arash; Taherzadeh, Mohammad J.; Tiraferri, Alberto; Rahimpour, Ahmad

doi:10.1016/j.jiec.2019.09.009

Cited by 112 publications

(31 citation statements)

References 223 publications

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“…Membrane processes are able to recover VFAs by various methods [ 57 ], but the original research studies compare only one or two methods in the same scope. In this study, four separation processes (RO, NF, FO, SILM) are investigated by a comparative methodology supported by statistical analysis according to the anaerobic effluents treating needs.…”

Section: Introductionmentioning

confidence: 99%

Separation of Volatile Fatty Acids from Model Anaerobic Effluents Using Various Membrane Technologies

et al. 2020

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Effluents of anaerobic processes still contain valuable components, among which volatile fatty acids (VFAs) can be regarded and should be recovered and/or used further in applications such as microbial electrochemical technology to generate energy/energy carriers. To accomplish the separation of VFAs from waste liquors, various membrane-based solutions applying different transport mechanisms and traits are available, including pressure-driven nanofiltration (NF) and reverse osmosis (RO) which are capable to clarify, fractionate and concentrate salts and organics. Besides, emerging techniques using a membrane such as forward osmosis (FO) and supported liquid membrane (SILM) technology can be taken into consideration for VFA separation. In this work, we evaluate these four various downstream methods (NF, RO, FO and SILM) to determine the best one, comparatively, for enriching VFAs from pH-varied model solutions composed of acetic, butyric and propionic acids in different concentrations. The assessment of the separation experiments was supported by statistical examination to draw more solid conclusions. Accordingly, it turned out that all methods can separate VFAs from the model solution. The highest average retention was achieved by RO (84% at the applied transmembrane pressure of 6 bar), while NF provided the highest permeance (6.5 L/m2hbar) and a high selectivity between different VFAs.

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Section: Introductionmentioning

confidence: 99%

Separation of Volatile Fatty Acids from Model Anaerobic Effluents Using Various Membrane Technologies

et al. 2020

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“…There is also another phenomenon called pore blocking that also occurs during the recovery of proteins and is defined as an irreversible process; the pore blocking also leads to consequences such as flux decline during the membrane filtration process (Bhattacharjee et al 2017 ; Issaoui and Limousy 2019 ). When studying the recovery of protein from high organic content waste streams using MF and NF membranes, the major drawback that results in reduced flux is the concentration polarization effect and pore blocking with cake layer formation on the surface of the membrane over time (Park et al 2017 ; Aghapour Aktij et al 2020 ).…”

Section: Protein Recovery and Membrane Foulingmentioning

confidence: 99%

Protein recovery as a resource from waste specifically via membrane technology—from waste to wonder

Shahid

Srivastava

2021

Environ Sci Pollut Res

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Economic growth and the rapid increase in the world population has led to a greater need for natural resources, which in turn, has put pressure on said resources along with the environment. Water, food, and energy, among other resources, pose a huge challenge. Numerous essential resources, including organic substances and valuable nutrients, can be found in wastewater, and these could be recovered with efficient technologies. Protein recovery from waste streams can provide an alternative resource that could be utilized as animal feed. Membrane separation, adsorption, and microbe-assisted protein recovery have been proposed as technologies that could be used for the aforementioned protein recovery. This present study focuses on the applicability of different technologies for protein recovery from different wastewaters. Membrane technology has been proven to be efficient for the effective concentration of proteins from waste sources. The main emphasis of the present short communication is to explore the possible strategies that could be utilized to recover or restore proteins from different wastewater sources. The presented study emphasizes the applicability of the recovery of proteins from various waste sources using membranes and the combination of the membrane process. Future research should focus on novel technologies that can help in the efficient extraction of these high-value compounds from wastes. Lastly, this short communication will evaluate the possibility of integrating membrane technology. This study will discuss the important proteins present in different industrial waste streams, such as those of potatoes, poultry, dairy, seafood and alfalfa, and the possible state of the art technologies for the recovery of these valuable proteins from the wastewater. Graphical abstract

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“…In the past decade, many studies on new materials, methods, and technologies for acid recovery via DD were published. Although reviews on acid recovery involving membrane technologies have been published recently, they focused on specific application scenarios, such as acid recovery from acid mine drainage [36,37] and fatty acid recovery [38] or specific technologies, such as electromembrane technology [39] and reactive separation technology [40]. There are few comprehensive reviews that summarize the developments for the key component, AEMs, in detail.…”

Section: Materials Price ($)mentioning

confidence: 99%

Diffusion Dialysis for Acid Recovery from Acidic Waste Solutions: Anion Exchange Membranes and Technology Integration

Zhang

Wang

2020

Membranes

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Inorganic acids are commonly used in mining, metallurgical, metal-processing, and nuclear-fuel-reprocessing industries in various processes, such as leaching, etching, electroplating, and metal-refining. Large amounts of spent acidic liquids containing toxic metal ion complexes are produced during these operations, which pose a serious hazard to the living and non-living environment. Developing economic and eco-friendly regeneration approaches to recover acid and valuable metals from these industrial effluents has focused the interest of the research community. Diffusion dialysis (DD) using anion exchange membranes (AEMs) driven by an activity gradient is considered an effective technology with a low energy consumption and little environmental contamination. In addition, the properties of AEMs have an important effect on the DD process. Hence, this paper gives a critical review of the properties of AEMs, including their acid permeability, membrane stability, and acid selectivity during the DD process for acid recovery. Furthermore, the DD processes using AEMs integrated with various technologies, such as pressure, an electric field, or continuous operation are discussed to enhance its potential for industrial applications. Finally, some directions are provided for the further development of AEMs in DD for acid recovery from acidic waste solutions.

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Feasibility of membrane processes for the recovery and purification of bio-based volatile fatty acids: A comprehensive review

Cited by 112 publications

References 223 publications

Separation of Volatile Fatty Acids from Model Anaerobic Effluents Using Various Membrane Technologies

Separation of Volatile Fatty Acids from Model Anaerobic Effluents Using Various Membrane Technologies

Protein recovery as a resource from waste specifically via membrane technology—from waste to wonder

Diffusion Dialysis for Acid Recovery from Acidic Waste Solutions: Anion Exchange Membranes and Technology Integration

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