Impact of salinities, metals and organic compounds found in saline oil &amp; gas produced water on microalgae and cyanobacteria

Parsy, Aurélien; Guyoneaud, Remy; Lot, Marie-Claire; Baldoni-Andrey, Patrick; Périé, Frédéric; Sambusiti, Cécilia

doi:10.1016/j.ecoenv.2022.113351

Cited by 16 publications

(6 citation statements)

References 35 publications

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“…As algal growth was finished, tests were not continued after 23 days. Growth rate of microalgae consortia was 0.2 d −1 after 9 days of culture, being similar to growth rates monitored on individual microalgae in effluent containing f medium and 80% of aPW with similar composition [20].…”

Section: Microbial Growthsupporting

confidence: 77%

“…Artificial-produced water supplemented with liquid digestate was used as culture media to grow microalgae and bacteria. Compositions of artificial-produced water (aPW) was based on the composition of aPW used by Parsy et al [20], except that total dissolved solids (TDS) was adjust to 150 g•L −1 instead of 30 g•L −1 with Instant Ocean salts. Organic phase was also simplified and contained (expressed in mgC•L −1 ): acetate: 25.22; ethanol: 14.04; phenol: 16.12; benzene: 10.66; toluene: 6.59; ethylbenzene: 9.80; o-xylene: 1.41; m-xylene: 3.76; naphthalene: 0.94; phenanthrene: 2.24.…”

Section: Artificial-produced Water Supplemented With Liquid Digestate...mentioning

confidence: 99%

“…As inoculum of microalgae were nonaxenic, bacteria were brought by the microalgal suspension. The microalgae cultures could have been carried out in the presence of antibiotics as in a previous work [20]. However, this does not reflect the conditions of a large-scale process.…”

Section: Initial Populationsmentioning

confidence: 99%

“…The removal of aromatic compounds in PW with microalgae alone is poorly documented in the literature. Previous work [20] investigated the toxicity of aromatic compounds on the same strain of microalgae. Results showed that in concentrations found in aPW, aromatic compounds such as benzene, naphthalene, and phenol were not toxic to N. oceanica, D. salina, and T. suecica.…”

Section: Aromatic Compounds Removalmentioning

confidence: 99%

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Impact of Bioaugmentation on the Bioremediation of Saline-Produced Waters Supplemented with Anaerobic Digestate

et al. 2023

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Bioremediation of produced waters has been widely investigated in the last decades. More recently, microalgae-based treatments have been developed to produce biomass. The objective of this study was to determine, at lab scale, the remediation efficiency of three origin of microorganisms: a consortium of three halotolerant and halophilic microalgae and their associated bacteria, bacteria from liquid digestate, and aromatic-degrading bacteria selected to perform bioaugmentation. The medium was composed of artificial oil-produced water and seawater, and contained nutrients from liquid digestate. In order to identify what plays a role in nitrogen, chemical oxygen demand, and aromatics compounds elimination, and to determine the effectiveness of bioaugmentation to treat this mix of waters, 16S rRNA analyses were performed. Combination of microorganisms from different origins with the selected aromatic-degrading bacteria were also realized, to determine the effectiveness of bioaugmentation to treat these waters. Each population of microorganisms achieved similar percentage of removal during the biological treatment, with 43–76%, 59–77%, and 86–93% of elimination for ammonium, chemical oxygen demand, and aromatic compounds (with 50% of volatilization), respectively, after 7 days, and up to with 100%, 77%, and 99% after 23 days, demonstrating that in the case of this produced water, bioaugmentation with the specialized aromatic-degrading bacteria had no significant impact on the treatment. Regarding in detail the populations present and active during the tests, those from genus Marinobacter always appeared among the most active microorganisms, with some strains of this genus being known to degrade aromatic compounds.

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Section: Microbial Growthsupporting

confidence: 77%

Section: Artificial-produced Water Supplemented With Liquid Digestate...mentioning

confidence: 99%

Section: Initial Populationsmentioning

confidence: 99%

Section: Aromatic Compounds Removalmentioning

confidence: 99%

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Impact of Bioaugmentation on the Bioremediation of Saline-Produced Waters Supplemented with Anaerobic Digestate

et al. 2023

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“…Therefore, microalgae represent a sustainable resource for biomass production to answer growing demand for bioprocessing and production of environmentally friendly products. Microalgae can tolerate and grow well in saline wastewater with high load of organic matter [92]. The acclimation of microalgae allows them to tolerate the toxicity of pharmaceutical, pesticide and mining wastes [93][94][95].…”

Section: Bioremediation Of Pesticides Using Microalgae: Why and Howmentioning

confidence: 99%

Microalgae-Enabled Wastewater Treatment: A Sustainable Strategy for Bioremediation of Pesticides

Sean

Lau

Ismail

et al. 2022

Water

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Pesticides have been identified as major contaminants of various waterways. Being classified as potential endocrine disrupting compounds, pesticides in aqueous system are highly hazardous to aquatic organisms and the ecosystem. The treatment of pesticide-containing wastewater can be performed through several means, but a wastewater treatment strategy which emphasizes both treatment efficiency and sustainability is a necessity of current time. In this context, bioremediation has been increasingly promoted as an alternative technique for the remediation of diverse pollutants. Particularly, bioremediation which involves the utilization of microalgae for the removal or conversion of pesticides to the harmless or less harmful compounds is becoming a trend. Exploiting microalgae as a tool for wastewater treatment presents multiple advantages over conventional treatment technologies, which include an opportunity to simultaneously treat pesticide-containing wastewater and nutrient recovery for microalgae cultivation as well as less formation of toxic sludge. This review discusses the roles of microalgae in mitigating pesticide pollution issue, while offering an opportunity for nutrient recovery from various wastewater sources. Based on the current laboratory studies, the use of microalgae bioremediation as a promising strategy for pesticide treatment has been rationalized. The establishment of more pilot scale studies is highly encouraged to further facilitate the implementation of this treatment approach for practical application.

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Selection of photosynthetic microorganisms grown in artificial saline industrial effluents with liquid digestate: From screening to consortium cultures

Parsy¹,

Sambusiti²,

Baldoni-Andrey³

et al. 2023

Algal Research

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Impact of salinities, metals and organic compounds found in saline oil & gas produced water on microalgae and cyanobacteria

Cited by 16 publications

References 35 publications

Impact of Bioaugmentation on the Bioremediation of Saline-Produced Waters Supplemented with Anaerobic Digestate

Impact of Bioaugmentation on the Bioremediation of Saline-Produced Waters Supplemented with Anaerobic Digestate

Microalgae-Enabled Wastewater Treatment: A Sustainable Strategy for Bioremediation of Pesticides

Selection of photosynthetic microorganisms grown in artificial saline industrial effluents with liquid digestate: From screening to consortium cultures

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