Preliminary data set to assess the performance of an outdoor membrane photobioreactor

González-Camejo, J.; Jiménez-Benítez, A.; Ruano, M.V.; Robles, Ángel; Barat, R.; Ferrer, J.

doi:10.1016/j.dib.2019.104599

Cited by 8 publications

(7 citation statements)

References 5 publications

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“…[13] A series of publications described a highly economical wastewater treatment plant. [52,75,[78][79][80] This bioreactor consists of four parts: the first one separates low and high sulfur sediments. The low sulfur sediment feeds the second part: the anaerobic reactor that produces nitrogen and phosphorus rich water which is fed to the third part: aerobic membrane flat-panel photobioreactor growing Chlorella algae to further clean the water.…”

Section: Photobioreactor Design Is Pivotal For High Yield Of Microalgaementioning

confidence: 99%

Recent advances and fundamentals of microalgae cultivation technology

Rozenberg,

Sorokin,

Mukhambetova

et al. 2024

Biotechnology Journal

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Microalgae are considered to be a promising group of organisms for fuel production, waste processing, pharmaceutical applications, and as a source of food components. Unicellular algae are worth being considered because of their capacity to produce comparatively large amounts of lipids, proteins, and vitamins while requiring little room for growth. They can also grow on waste and fix CO2 and nitrogen compounds. However, production costs limit the industrial use of microalgae to the most profitable applications including micronutrient production and fish farming. Therefore, novel microalgae based technologies require an increase of the production efficiencies or values. Here we review the recent studies focused on getting strains with novel characteristics or cultivating techniques that improve production's robustness or efficiency and categorize these findings according to the fundamental factors that determine microalgae growth. Improvements of light and nutrient delivery, as well as other aspects of photobioreactor design, have shown the highest average increase in productivity. Other methods, such as an improvement of phosphorus or CO2 fixation and temperature adaptation have been found to be less effective. Furthermore, interactions with particular bacteria may promote the growth of microalgae, although bacterial and grazer contaminations must be managed to avoid culture failure. The competitiveness of the algal products will increase if these discoveries are applied to industrial settings.

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Section: Photobioreactor Design Is Pivotal For High Yield Of Microalgaementioning

confidence: 99%

Recent advances and fundamentals of microalgae cultivation technology

Rozenberg,

Sorokin,

Mukhambetova

et al. 2024

Biotechnology Journal

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“…However, secondary effluents usually contain low nitrogen and phosphorus concentrations, that is, in the range of around 13–20 mg N·L −1 and 0.6–2.4 mg P L −1 , respectively (Arbib et al, 2017; Gao et al, 2019). Consequently, microalgae used to treat these streams are expected to be nutrient‐limited as nitrogen concentrations lower than 10 mg N L −1 and phosphorus concentrations close to depletion have been reported to reduce microalgae growth (González‐Camejo, Jiménez‐Benítez, et al, 2019b; Pachés et al, 2020). Another inconvenient is that ammonium, which is the preferred nitrogen source for microalgae (Eze et al, 2018), is almost completely oxidized to nitrate in the biological reactor (Figure 3c).…”

Section: Urban Wastewater Streams Treated By Microalgaementioning

confidence: 99%

“…These pH values have been also reported to produce negligible ammonia concentration and phosphorus precipitation (Hussain et al, 2021; Tan, Zhang, Yang, Chu, & Guo, 2016). These processes are inconvenient because ammonia can inhibit the photosynthetic process and reduce the nitrogen concentration in the culture due to ammonia stripping (Galès et al, 2019; Tua, Ficara, Mezzanotte, & Rigamonti, 2021), while phosphorus precipitation not only lowers the bioavailability of this nutrient but also diminishes the light dispersion in the microalgae culture due to an increase of the culture turbidity (González‐Camejo et al, 2019b). For this reason, an effective pH control system is essential to improve microalgae performance.…”

Section: Microalgae Cultivationmentioning

confidence: 99%

Outdoor microalgae‐based urban wastewater treatment: Recent advances, applications, and future perspectives

et al. 2021

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Although microalgae‐based wastewater treatment has been traditionally carried out in extensive waste stabilization ponds, recent trends focus on the use of microalgae to apply the circular economy principles in the wastewater treatment sector due to the capacity of algae to absorb carbon dioxide while recovering nutrients from sewage. To this aim, the development of new intensive microalgae‐based systems with higher efficiency and level of process control is required. Results obtained for these systems at lab scale are generally promising. However, upscaling to outdoor conditions is often uncertain. Some advances have been made in terms of applying open systems at large scale. However, there are still some issues related to land requirements and the economic feasibility and robustness of the process that have to be overcome to widely implement these systems. This article aims at describing the main design and operating factors regarding outdoor microalgae cultivation. It will also explain some microalgae cultivation technologies to treat wastewater, showing their advantages, disadvantages, and the possibility to treat different wastewater streams with microalgae cultures. Future perspectives of this biotechnology will be commented as well. This article is categorized under: Engineering Water > Engineering Water

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“…On the other hand, sustainable microalgal and cyanobacterial production is still facing various obstacles that must be overcome [5,6], among which is the choice of an effective culture system, particularly in outdoor environments [7]. Outdoor microalgal and cyanobacterial biomass production has been operating for decades, mostly employing open ponds, particularly due to simple technology and lower investment costs [8,9]. This cultural practice, however, is difficult to control during their operation and is susceptible to contamination [10].…”

Section: Introductionmentioning

confidence: 99%

“…Accordingly, there have been suggestions originating from a long time ago to employ a closed culture system, which is commonly named a photobioreactor (PBR), for producing microalgae and cyanobacteria biomass. The PBR is known to have better control of operating conditions, making the culture reproducible and possessing fewer contamination problems [8,11]. There have been some reports mentioning the development of PBR for culturing various cyanobacteria and microalgae, such as Spirulina (Arthospira) platensis, Phaeodactylum, Nannochloropsis, Chlorella, etc.…”

Section: Introductionmentioning

confidence: 99%

Outdoor Inclined Plastic Column Photobioreactor: Growth, and Biochemicals Response of Arthrospira platensis Culture on Daily Solar Irradiance in a Tropical Place

Chrismadha¹,

Satya²,

Satya³

et al. 2022

Metabolites

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Implementation of outdoor photobioreactors has been challenged by an extremely oversaturated daily peak of solar irradiance. This study aims to understand the role of column size and paranet shading as well as to investigate the most convenient light control in outdoor cyanobacterial culture. The photobioreactor (PBR) consisted of plastic columns with a diameter of 12.74 cm (PBRd-20) and 31.85 cm (PBRd-50) laid outdoors and inclined at 158.22° upwards against solar radiation, while paranet shading was provided at 0%, 50%, 70%, and 90% shading capacity. A semi-continuous culture of cyanobacterium Arthrospira (Spirulina) platensis was conducted for 6 weeks with weekly monitoring of the growth parameter as well as the proximate and pigments content, while the daily irradiance and culture maximum temperature were recorded. The result shows that the column diameter of 12.74 cm had a lethal risk of 44.7% and this decreased to 10.5% by widening the column diameter to 31.85 cm. This lethal risk can be eliminated by the application of a paranet at a 50% reduction level for the column diameter of 31.85 cm and a 70% reduction level for the column diameter of 12.74 cm. The highest culture productivity of 149.03 mg/(L·day) was achieved with a PBRd-20 with 50% shading treatment, but a PBRd-50 with 90% shading treatment led to an increase in the protein and phycocyanin content by 66.7% and 14.91%, respectively.

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Preliminary data set to assess the performance of an outdoor membrane photobioreactor

Cited by 8 publications

References 5 publications

Recent advances and fundamentals of microalgae cultivation technology

Recent advances and fundamentals of microalgae cultivation technology

Outdoor microalgae‐based urban wastewater treatment: Recent advances, applications, and future perspectives

Outdoor Inclined Plastic Column Photobioreactor: Growth, and Biochemicals Response of Arthrospira platensis Culture on Daily Solar Irradiance in a Tropical Place

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