Uptake of copper from acid mine drainage by the microalgae Nannochloropsis oculata

Martinez‐Macias, María del Rosario; Correa-Murrieta, Ma. A.; Villegas‐Peralta, Yedidia; Dévora-Isiordia, Germán Eduardo; Álvarez-Sánchez, Jesús; Saldívar-Cabrales, Jorge; Sánchez-Duarte, Reyna G.

doi:10.1007/s11356-018-3963-1

Cited by 35 publications

(12 citation statements)

References 28 publications

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“…Lipids were extracted using a modified method of Martínez‐Macias et al (2019): 1 g of dry biomass was crushed with mortar and transferred to a 125‐ml Erlenmeyer flask with 20 ml of chloroform/methanol (2/1, v/v) and was stirred for 20 min at 40°C over a heating plate. The liquid phase was cooled and filtered (Whatman, 1.5 μm).…”

Section: Methodsmentioning

confidence: 99%

Influence of different reactor types on Nannochloropsis oculata microalgae culture for lipids and fatty acid production

Martinez‐Macias

Aguilar-Ruiz

Nateras-Ramírez

et al. 2021

J Americ Oil Chem Soc

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Greenhouse gases emitted into the atmosphere by burning of fossil fuels cause global warming. One option is obtaining biodiesel. Nannochloropsis oculata was cultured under different light intensities and reactors at 25°C for 21 days with f/2 medium to assess their effects on cell density, lipid, and fatty acids (FAs). N. oculata improved cell density on fed‐batch glass tubular reactor (7 L) at 200 μmol E m−2 s−1, yielding 3.5 × 108 cells ml−1, followed by fed‐batch Erlenmeyer flask (1 L) at 650 μmol E m−2 s−1 with 1.7 × 108 cells ml−1. The highest total lipid contents (% g lipid × g dry biomass−1) were 44.4 ± 0.8% for the reactor (1 L) at 650 μmol E m−2 s−1 and 35.2 ± 0.2% for the tubular reactor (7 L) at 200 μmol E m−2 s−1, until twice as high compared with the control culture (Erlenmeyer flask 1 L, 80 μmol E m−2 s−1) with 21.2 ± 1%. Comparing the total lipid content at 200 μmol E m−2 s−1, tubular reactor (7 L) and reactor 1 L achieved 35.2 ± 0.2% and 28.3 ± 1%, respectively, indicating the effect of shape reactor. The FAs were affected by high light intensity, decreasing SFAs to 2.5%, and increased monounsaturated fatty acids + polyunsaturated fatty acids to 2.5%. PUFAs (20:5n‐3) and (20:4n‐3) were affected by reactor shape, decreasing by half in the tubular reactor. In the best culture, fed‐batch tubular reactor (7 L) at 200 μmol E m−2 s−1 contains major FAs (16:0; 38.06 ± 0.16%), (16:1n‐7; 30.74 ± 0.58%), and (18:1n‐9; 17.15 ± 0.91%).

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Section: Methodsmentioning

confidence: 99%

Influence of different reactor types on Nannochloropsis oculata microalgae culture for lipids and fatty acid production

Martinez‐Macias

Aguilar-Ruiz

Nateras-Ramírez

et al. 2021

J Americ Oil Chem Soc

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“…Heavy metals are a major concern, because they are not biodegradable and are toxic and persistent in nature. Conventional techniques such as electrochemical treatments, adsorption, and membrane filtration are often very cost-effective [81][82][83][84][85][86][87][88]. In contrast, microalgae are able to efficiently remove heavy metals from aquatic systems in an environmentally friendly way (Table 5) [81][82][83][84][85][86][87][88][89].…”

Section: Industrial Wastewater Treatmentmentioning

confidence: 99%

“…Conventional techniques such as electrochemical treatments, adsorption, and membrane filtration are often very cost-effective [81][82][83][84][85][86][87][88]. In contrast, microalgae are able to efficiently remove heavy metals from aquatic systems in an environmentally friendly way (Table 5) [81][82][83][84][85][86][87][88][89]. Markou et al [6] reported the presence of extremely high concentrations of heavy metals in swine manure, reaching 8800 µg L −1 of zinc, 2700 µg L −1 of manganese, 2100 µg L −1 of copper, 9 µg L −1 of cadmium; and up to 810 µg L −1 of nickel, 1740 µg L −1 of lead, and 160 µg L −1 of cadmium in wine and vinasse industry WW.…”

Section: Industrial Wastewater Treatmentmentioning

confidence: 99%

“…For example, Nannochloropsis oculata metabolized approximately 89.29 ± 1.92% of the copper in the culture and only 10.70 ± 1.92% was adsorbed by this microalga [81]. Other studies have shown that increasing concentrations of contaminants such as copper could cause a decrease in cell number and a variation in growth rate and chlorophyll A content [81]. Arsenic has been recognized as a major contaminant of surface and groundwater.…”

Section: Industrial Wastewater Treatmentmentioning

confidence: 99%

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Microalgal Systems for Wastewater Treatment: Technological Trends and Challenges towards Waste Recovery

et al. 2021

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Wastewater (WW) treatment using microalgae has become a growing trend due the economic and environmental benefits of the process. As microalgae need CO2, nitrogen, and phosphorus to grow, they remove these potential pollutants from wastewaters, making them able to replace energetically expensive treatment steps in conventional WW treatment. Unlike traditional sludge, biomass can be used to produce biofuels, biofertilizers, high value chemicals, and even next-generation growth media for “organically” grown microalgal biomass targeting zero-waste policies and contributing to a more sustainable circular bioeconomy. The main challenge in this technology is the techno-economic feasibility of the system. Alternatives such as the isolation of novel strains, the use of native consortia, and the design of new bioreactors have been studied to overcome this and aid the scale-up of microalgal systems. This review focuses on the treatment of urban, industrial, and agricultural wastewaters by microalgae and their ability to not only remove, but also promote the reuse, of those pollutants. Opportunities and future prospects are discussed, including the upgrading of the produced biomass into valuable compounds, mainly biofuels.

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“…Synthesized graphitic carbon nitride (g-C 3 N 4 ) was evaluated as an adsorbent for AMD treatment to removal Cu, Mn, Zn, Pb, Fe, and Cd from the Sungun copper mine in Iran (Dehkharghani, 2019). It was observed that exfoliated g-C 3 N 4 was an effective adsorbent for AMD treatment.…”

Section: Mine Drainage Remediation Technologymentioning

confidence: 99%

Mine drainage: Remediation technology and resource recovery

Viadero

Zhang

et al. 2020

Water Environment Research

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Drainage from current and historic mining operations remains a persistent environmental problem. Numerous research and development efforts were made in 2019 with a goal to minimize the impact of mine drainage on the environment, while other research endeavors addressed the mine drainage issue from a different perspective, where mine drainage was considered a resource for water and valuable products, such as metals, sulfuric acid, and rare earth elements. Thus, this review has two main sections: (a) focusing on research efforts in mine drainage remediation technology, and (b) emphasizing advances in resource recovery from mine drainage. The first section covers traditional and emerging passive and active treatment technologies. The second section summarizes resource recovery efforts using various technologies, such as selective precipitation, membrane process, and biological systems.

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Uptake of copper from acid mine drainage by the microalgae Nannochloropsis oculata

Cited by 35 publications

References 28 publications

Influence of different reactor types on Nannochloropsis oculata microalgae culture for lipids and fatty acid production

Influence of different reactor types on Nannochloropsis oculata microalgae culture for lipids and fatty acid production

Microalgal Systems for Wastewater Treatment: Technological Trends and Challenges towards Waste Recovery

Mine drainage: Remediation technology and resource recovery

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