Submerged hollow-fiber-ultrafiltration for harvesting microalgae used for bioremediation of a secondary wastewater

Wang, Song; Tena, Franziska Ortiz; Dey, Rohit; Thomsen, Claudia; Steinweg, Christian; Kraemer, Dennis; Grossman, Amit Dan; Belete, Yonas Zeslase; Bernstein, Roy; Gross, Amit; Leu, Stefan; Boussiba, Sammy; Thomsen, Laurenz; Posten, Clemens

doi:10.1016/j.seppur.2022.120744

Cited by 11 publications

(4 citation statements)

References 41 publications

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“…A subsequent evaluation of these resistances R f and R p could provide a better understanding of fouling mechanisms and provide further theoretical support in the industrial optimization of the process. J p may be defined as the material amount that passes through the membrane surface in the time (Kukučka & Kukučka, 2013) (Wang et al ., 2022):

J_{P} = \frac{Q_{P}}{A_{m}}

where Q p is the permeate volumetric flowrate; A m is the membrane surface of the membrane, may be calculated differently, depending on what the pressure operation is internal or external:

A_{m - in} = π * d_{italicin} * l * N_{italicfibers}

A_{m - ex} = π * d_{italicex} * l * N_{italicfibers}

where A m‐in is the membrane area for the hollow‐fibre membrane with internal pressure operation, that is IN‐to‐OUT filtration mode; A m‐ex is the membrane area for the hollow‐fibre membrane with external pressure operation, that is OUT‐to‐IN filtration mode; d in and d ex are the internal and external diameters for a fibre; l is the length for a fibre; and N fibers is the number of fibres. Through TMP , hydraulic membrane permeability is defined:

L_{P} = \frac{Q_{P}}{italicTMP}

which may be expressed in the function of the membrane resistances:

L_{P} = \frac{1}{μ * R_{italictot}}

J p can also be expressed in function of the permeability:

J_{P} = L_{P} * TMP

The membrane permeability can vary during the tests; the average J p versus the TMP value has been graphed (Mohammadi et al ., 2005) for three consecutive tests performed at three different TMP values, bypassing a straight line through these points, the origin.…”

Section: Methodsmentioning

confidence: 99%

Design of an integrated membrane system to produce dairy by‐product from waste processing

Gaudio

Curcio

Chakraborty

2022

Int J of Food Sci Tech

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Membrane technology is used in different applications. In this work, a whey-based product with a final protein content of 16% has been formulated from Scottathe last waste of the dairy industryby crossflow ultrafiltration (UF) membrane followed by vacuum evaporation (EV). Until now, Scotta was only revalorized in conjunction with whey and into the biogas production process. It was never revalorized as food in the food supply chain. UF and EV processes led to an overall water amount removed from the whey of 84.9%. A vertical configuration of the polyethersulfone (PES) hollow-fibre membrane was used in the OUT-to-IN structure. At 1.50 bar of pressure with 120 min of time interval, higher permeate flow decay has been obtained with a further reduction of the microbiological environments. A combination of intermediate and standard blocking seems to happen in all membranes, but concentration polarisation (CP) may be neglected for membranes with high fibres. The best EV operating conditions have been obtained at ten bars, with 37°C of the heating bath and 2.5 h of time, further preventing microorganism formation and protein denaturation. For future applications of Scotta revalorized in a food, it would be interesting to investigate the use of the multistage methods of membrane and evaporators to obtain a low specific energy consumption and to reduce costs further.

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J_{P} = \frac{Q_{P}}{A_{m}}

where Q p is the permeate volumetric flowrate; A m is the membrane surface of the membrane, may be calculated differently, depending on what the pressure operation is internal or external:

A_{m - in} = π * d_{italicin} * l * N_{italicfibers}

A_{m - ex} = π * d_{italicex} * l * N_{italicfibers}

L_{P} = \frac{Q_{P}}{italicTMP}

which may be expressed in the function of the membrane resistances:

L_{P} = \frac{1}{μ * R_{italictot}}

J p can also be expressed in function of the permeability:

J_{P} = L_{P} * TMP

Section: Methodsmentioning

confidence: 99%

Design of an integrated membrane system to produce dairy by‐product from waste processing

Gaudio

Curcio

Chakraborty

2022

Int J of Food Sci Tech

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show abstract

“…Microalgae are appealing from both an economic and environmental standpoint, as during their cultivation and processing, CO 2 emissions from burning may be captured, and wastewater may be treated [56][57][58]. Due to their low costs and associated environmental advantages, the high-potential method for tertiary treatment in wastewater treatment facilities is microalgae-based systems (WWTPs) (Table 2) [59][60][61][62][63][64][65][66][67][68][69][70].…”

Section: Nutrient Removal and Wastewater Treatmentmentioning

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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“…and Coelastrella sp. have been cultured in a submerged membrane-based filtration device using anaerobic membrane bioreactor-treated secondary effluent as the culturing medium [118]. Based on the different fractions of the microalgal suspension, it was observed that the fouling mechanisms and fouling reversibility of the polyvinylidene fluoride (PVDF) ultrafiltration membrane were strongly dependent on the stages of microalgal growth.…”

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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Submerged hollow-fiber-ultrafiltration for harvesting microalgae used for bioremediation of a secondary wastewater

Cited by 11 publications

References 41 publications

Design of an integrated membrane system to produce dairy by‐product from waste processing

Design of an integrated membrane system to produce dairy by‐product from waste processing

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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