Microalgae Brewery Wastewater Treatment: Potentials, Benefits and the Challenges

Amenorfenyo, David Kwame; Huang, Xinyu; Zhang, Yulei; Zeng, Qitao; Zhang, Ning; Ren, Jiajia; Huang, Qiang

doi:10.3390/ijerph16111910

Cited by 139 publications

(54 citation statements)

References 93 publications

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“…Nevertheless, recent progress has been made in an integrated perspective of wastewater treatment that includes standard and biological technologies for pharmaceutical emerging contaminants [4][5][6][7], industrial chemicals [8,9], brewery wastewater [10], agro-industrial wastewater [11,12], heavy metals [13,14], and emerging compounds [15].…”

Section: Introductionmentioning

confidence: 99%

Evaluation and Predictive Modeling of Removal Condition for Bioadsorption of Indigo Blue Dye by Spirulina platensis

et al. 2020

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Among the different chemical and physical treatments used to remove the color of the textile effluents, bioremediation offers many benefits to the environment. In this study, we determined the potential of Spirulina platensis (S. platensis) for decolorizing indigo blue dye under different incubation conditions. The microalgae were incubated at different pH (from 4 to 10) to calibrate for the optimal discoloration condition; a pH of 4 was found to be optimal. The biomass concentration in all experiments was 1 g/L, which was able to decolorize the indigo blue dye by day 3. These results showed that S. platensis is capable of removing indigo blue dye at low biomass. However, this was dependent on the treatment conditions, where temperature played the most crucial role. Two theoretical adsorption models, namely (1) a first-order model equation and (2) a second-order rate equation, were compared with observed adsorption vs. time curves for different initial concentrations (from 25 to 100 mg/L). The comparison between models showed similar accuracy and agreement with the experimental values. The observed adsorption isotherms for three temperatures (30, 40, and 50 °C) were plotted, showing fairly linear behavior in the measured range. The adsorption equilibrium isotherms were estimated, providing an initial description of the dye removal capacity of S. platensis.

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Section: Introductionmentioning

confidence: 99%

Evaluation and Predictive Modeling of Removal Condition for Bioadsorption of Indigo Blue Dye by Spirulina platensis

et al. 2020

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“…Its ability to survive in adverse conditions and its ubiquitous nature also make it a potentially useful algae for industrial wastewater treatment. Specifically, the microalgae Chlorella vulgaris is known for its robustness, in conjunction with being one of the fastest growing species and is easily cultivated [ 44 ].…”

Section: Introductionmentioning

confidence: 99%

Toxicity, Bioaccumulation and Biotransformation of Glucose-Capped Silver Nanoparticles in Green Microalgae Chlorella vulgaris

et al. 2020

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Silver nanoparticles (AgNPs) are one of the most widely used nanomaterials in consumer products. When discharged into the aquatic environment AgNPs can cause toxicity to aquatic biota, through mechanisms that are still under debate, thus rendering the nanoparticles (NPs) effects evaluation a necessary step. Different aquatic organism models, i.e., microalgae, mussels, Daphnia magna, sea urchins and Danio rerio, etc. have been largely exploited for NPs toxicity assessment. On the other hand, alternative biological microorganisms abundantly present in nature, i.e., microalgae, are nowadays exploited as a potential sink for removal of toxic substances from the environment. Indeed, the green microalgae Chlorella vulgaris is one of the most used microorganisms for waste treatment. With the aim to verify the possible involvement of C. vulgaris not only as a model microorganism of NPs toxicity but also for the protection toward NPs pollution, we used these microalgae to measure the AgNPs biotoxicity and bioaccumulation. In particular, to exclude any toxicity derived by Ag+ ions release, green chemistry-synthesised and glucose-coated AgNPs (AgNPs-G) were used. C. vulgaris actively internalised AgNPs-G whose amount increases in a time- and dose-dependent manner. The internalised NPs, found inside large vacuoles, were not released back into the medium, even after 1 week, and did not undergo biotransformation since AgNPs-G maintained their crystalline nature. Biotoxicity of AgNPs-G causes an exposure time and AgNPs-G dose-dependent growth reduction and a decrease in chlorophyll-a amount. These results confirm C. vulgaris as a bioaccumulating microalgae for possible use in environmental protection.

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“…Microalgae act as a powerful biotechnology platform to synthesize valuable products by recovering nutrients from the culture medium [1][2][3][4]. Although the idea of biofuel production by using microalgae is not new, it is still being taken seriously, owing to the probability to alleviate global warming and inhibit the escalating price of petroleum [5].…”

Section: Introductionmentioning

confidence: 99%

“…To date, a variety of wastewater types, such as brewery wastewater [4], livestock wastewater [8][9][10], aquaculture sewage [11], and municipal wastewater [12] have been successfully utilized for the microalgal production. Campus sewage is one type of municipal wastewater, and the volume of discharge is vast.…”

Section: Introductionmentioning

confidence: 99%

Campus Sewage Treatment by Golenkinia SDEC-16 and Biofuel Production under Monochromic Light

Nie

Jiang

et al. 2020

Journal of Chemistry

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The integration of microalgal cultivation in wastewater can fulfill the dual roles of pollutant degradation and biomass output. Meanwhile, the LED lights with different wavelengths have a great effect on the growth and metabolism of microalgae. In this study, Golenkinia SDEC-16, a strain isolated for biofuel production, was evaluated to verify its potentials for campus sewage treatment and lipid accumulation under the red, green, and blue lights. The results indicated that the treated campus sewage met the first grade level in the Chinese pollutant discharge standards for municipal wastewater treatment plants within seven days under both red and blue light. The green light failed to exhibit excellent performance in nutrient removal, but facilitated the lipid synthesis as high as 42.99 ± 3.48%. The increased lipid content was achieved along with low biomass accumulation owing to low effective light utilization, indicating that the green light could be merely used as a stimulus strategy. The red light benefited the photosynthesis of Golenkinia SDEC-16, with the maximal biomass concentration of 0.80 ± 0.03 g/L and lipid content of 36.90 ± 3.62%, which can attain the optimal balance between biomass production and lipid synthesis.

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Microalgae Brewery Wastewater Treatment: Potentials, Benefits and the Challenges

Cited by 139 publications

References 93 publications

Evaluation and Predictive Modeling of Removal Condition for Bioadsorption of Indigo Blue Dye by Spirulina platensis

Evaluation and Predictive Modeling of Removal Condition for Bioadsorption of Indigo Blue Dye by Spirulina platensis

Toxicity, Bioaccumulation and Biotransformation of Glucose-Capped Silver Nanoparticles in Green Microalgae Chlorella vulgaris

Campus Sewage Treatment by Golenkinia SDEC-16 and Biofuel Production under Monochromic Light

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