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Characterization of hypersaline Oklahoma native microalgae cultivated in flowback and produced water: growth profile and contaminant removal.

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Title: Characterization of hypersaline Oklahoma native microalgae cultivated in flowback and produced water: growth profile and contaminant removal.
Authors: Lutzu, Giovanni Antonio1,2 (AUTHOR) gianni.lutzu@teregroup.net, Concas, Alessandro3,4 (AUTHOR), Dunford, Nurhan Turgut1,5 (AUTHOR)
Source: Bioprocess & Biosystems Engineering. May2024, Vol. 47 Issue 5, p665-681. 17p.
Subjects: Oil field brines, Microalgae, Wastewater treatment, Pollutants, Biomass, Biomass production
Geographic Terms: Oklahoma
Abstract: This work explores the potential of three hypersaline native microalgae strains from Oklahoma, Geitlerinema carotinosum, Pseudanabaena sp., and Picochlorum oklahomensis, for simultaneous treatment of flowback (FW) and produced wastewater (PW) and the production of algal biomass. The quality of wastewater before and after treatment with these microalgae strains was evaluated and a characterization of algal biomass in terms of moisture, volatile matter, fixed carbon, and ash contents was assessed. The experimental results indicated how all the microalgae strains were able to grow in both FW and PW, revealing their potential for wastewater treatment. Although algal biomass production was limited by nutrient availability both in PW and FW, a maximum biomass concentration higher than 1.35 g L−1 were achieved by the three strains in two of the PWs and one of the FWs tested, with Pseudanabaena sp. reaching nearly 2 g L−1. Interestingly, higher specific growth rates were obtained by the two cyanobacteria strains G. carotinosum and Pseudanabaena sp. when cultivated in both PW and FW, compared to P. oklahomensis. The harvested algal biomass contained a significant amount of energy, even though it was significantly reduced by the very high salt content. The energy content fell within the recommended range of 16–17 MJ kg−1 for biomass as feedstock for biofuels. The algal treatment resulted in the complete removal of ammonia from the wastewater and a significant reduction in contaminants, such as nitrate, phosphate, boron, and micronutrients like zinc, manganese, and iron. [ABSTRACT FROM AUTHOR]
Copyright of Bioprocess & Biosystems Engineering is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Characterization of hypersaline Oklahoma native microalgae cultivated in flowback and produced water: growth profile and contaminant removal.
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  Data: <searchLink fieldCode="JN" term="%22Bioprocess+%26+Biosystems+Engineering%22">Bioprocess & Biosystems Engineering</searchLink>. May2024, Vol. 47 Issue 5, p665-681. 17p.
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  Data: <searchLink fieldCode="DE" term="%22Oil+field+brines%22">Oil field brines</searchLink><br /><searchLink fieldCode="DE" term="%22Microalgae%22">Microalgae</searchLink><br /><searchLink fieldCode="DE" term="%22Wastewater+treatment%22">Wastewater treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Pollutants%22">Pollutants</searchLink><br /><searchLink fieldCode="DE" term="%22Biomass%22">Biomass</searchLink><br /><searchLink fieldCode="DE" term="%22Biomass+production%22">Biomass production</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Oklahoma%22">Oklahoma</searchLink>
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  Data: This work explores the potential of three hypersaline native microalgae strains from Oklahoma, Geitlerinema carotinosum, Pseudanabaena sp., and Picochlorum oklahomensis, for simultaneous treatment of flowback (FW) and produced wastewater (PW) and the production of algal biomass. The quality of wastewater before and after treatment with these microalgae strains was evaluated and a characterization of algal biomass in terms of moisture, volatile matter, fixed carbon, and ash contents was assessed. The experimental results indicated how all the microalgae strains were able to grow in both FW and PW, revealing their potential for wastewater treatment. Although algal biomass production was limited by nutrient availability both in PW and FW, a maximum biomass concentration higher than 1.35 g L−1 were achieved by the three strains in two of the PWs and one of the FWs tested, with Pseudanabaena sp. reaching nearly 2 g L−1. Interestingly, higher specific growth rates were obtained by the two cyanobacteria strains G. carotinosum and Pseudanabaena sp. when cultivated in both PW and FW, compared to P. oklahomensis. The harvested algal biomass contained a significant amount of energy, even though it was significantly reduced by the very high salt content. The energy content fell within the recommended range of 16–17 MJ kg−1 for biomass as feedstock for biofuels. The algal treatment resulted in the complete removal of ammonia from the wastewater and a significant reduction in contaminants, such as nitrate, phosphate, boron, and micronutrients like zinc, manganese, and iron. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Bioprocess & Biosystems Engineering is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00449-024-02992-8
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        Text: English
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      – SubjectFull: Oil field brines
        Type: general
      – SubjectFull: Microalgae
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      – SubjectFull: Wastewater treatment
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      – SubjectFull: Pollutants
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      – SubjectFull: Biomass
        Type: general
      – SubjectFull: Biomass production
        Type: general
      – SubjectFull: Oklahoma
        Type: general
    Titles:
      – TitleFull: Characterization of hypersaline Oklahoma native microalgae cultivated in flowback and produced water: growth profile and contaminant removal.
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            NameFull: Lutzu, Giovanni Antonio
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            NameFull: Concas, Alessandro
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            – D: 01
              M: 05
              Text: May2024
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              Y: 2024
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