Enhancement of microalgal lipid production in municipal wastewater: Fixation of CO2 from the power plant tail gas

Tu, Renjie; Jin, Wei; Han, Song-Fang; Zhou, Xu; Wang, Jiaqi; Wang, Qing; He, Zhongqi; Ding, Wanqing; Che, Lin; Feng, Xiaochi

doi:10.1016/j.biombioe.2019.105400

Cited by 26 publications

(9 citation statements)

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“…It has been stated that 1 kg of algal biomass can fix 1.83 kg of carbon dioxide. Interestingly some microalgal species can also fix sulfur and nitrogen oxides as nutrients source (Tu et al, 2019).…”

Section: Potential As a Fuelmentioning

confidence: 99%

“…The results showed a 1.7 fold increase in biomass production, while the microalgae cultivated with industrial wastewater with flue gas containing 5% carbon dioxide showed maximum growth and carbon dioxide fixation (Yadav et al 2019). Tu et al (2019) studied the impacts of power plant tail gas to reduce carbon dioxide by using the tail gas as a carbon source and cultivated a freshwater microalga Chlorella pyrenoidosa. An increase in dry weight and lipid production by 84.9 and 74.4% was observed in the presence of power plant tail gas.…”

Section: Advantages Of Microalgae-based Carbon Sequestrationmentioning

confidence: 99%

“…C. pyrenoidosa is tolerant to sulfur dioxide and nitric oxide, which is in accordance with the study mentioned above. The tolerance is 0.04%; however, pretreatment processes like desulfurization and denitrification are required (Tu et al 2019) (Table 5). Aghaalipour et al (2020), in their research study, analyzed the assessment of carbon dioxide by fixation of two microalgal species, Scenedesmus obliquus and Chlorella vulgaris.…”

Section: Advantages Of Microalgae-based Carbon Sequestrationmentioning

confidence: 99%

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Algal biomass valorization for biofuel production and carbon sequestration: a review

et al. 2022

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The world is experiencing an energy crisis and environmental issues due to the depletion of fossil fuels and the continuous increase in carbon dioxide concentrations. Microalgal biofuels are produced using sunlight, water, and simple salt minerals. Their high growth rate, photosynthesis, and carbon dioxide sequestration capacity make them one of the most important biorefinery platforms. Furthermore, microalgae's ability to alter their metabolism in response to environmental stresses to produce relatively high levels of high-value compounds makes them a promising alternative to fossil fuels. As a result, microalgae can significantly contribute to long-term solutions to critical global issues such as the energy crisis and climate change. The environmental benefits of algal biofuel have been demonstrated by significant reductions in carbon dioxide, nitrogen oxide, and sulfur oxide emissions. Microalgae-derived biomass has the potential to generate a wide range of commercially important high-value compounds, novel materials, and feedstock for a variety of industries, including cosmetics, food, and feed. This review evaluates the potential of using microalgal biomass to produce a variety of bioenergy carriers, including biodiesel from stored lipids, alcohols from reserved carbohydrate fermentation, and hydrogen, syngas, methane, biochar and bio-oils via anaerobic digestion, pyrolysis, and gasification. Furthermore, the potential use of microalgal biomass in carbon sequestration routes as an atmospheric carbon removal approach is being evaluated. The cost of algal biofuel production is primarily determined by culturing (77%), harvesting (12%), and lipid extraction (7.9%). As a result, the choice of microalgal species and cultivation mode (autotrophic, heterotrophic, and mixotrophic) are important factors in controlling biomass and bioenergy production, as well as fuel properties. The simultaneous production of microalgal biomass in agricultural, municipal, or industrial wastewater is a low-cost option that could significantly reduce economic and environmental costs while also providing a valuable remediation service. Microalgae have also been proposed as a viable candidate for carbon dioxide capture from the atmosphere or an industrial point source. Microalgae can sequester 1.3 kg of carbon dioxide to produce 1 kg of biomass. Using potent microalgal strains in efficient design bioreactors for carbon dioxide sequestration is thus a challenge. Microalgae can theoretically use up to 9% of light energy to capture and convert 513 tons of carbon dioxide into 280 tons of dry biomass per hectare per year in open and closed cultures. Using an integrated microalgal bio-refinery to recover high-value-added products could reduce waste and create efficient biomass processing into bioenergy. To design an efficient atmospheric carbon removal system, algal biomass cultivation should be coupled with thermochemical technologies, such as pyrolysis.

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Section: Potential As a Fuelmentioning

confidence: 99%

Section: Advantages Of Microalgae-based Carbon Sequestrationmentioning

confidence: 99%

Section: Advantages Of Microalgae-based Carbon Sequestrationmentioning

confidence: 99%

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Algal biomass valorization for biofuel production and carbon sequestration: a review

et al. 2022

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“…RenjieTu et al . studied a zero‐C‐emission circular process 89 . Chlorella was cultured from municipal sewage, and the waste gas from a power plant was used as the C source to produce biomass.…”

Section: Microalgae‐co2‐biomass Cycle Systemmentioning

confidence: 99%

“…Therefore, a viable culture system for promoting the production of high‐value biomass from microalgae was established by combining the cultivation of microalgae in municipal sewage with the treatment of exhaust gas, simultaneously solving the two environmental pollution problems. The combination of sewage treatment and tail gas recycling has important practical significance for urban sewage treatment and C emission reduction 89 …”

Section: Microalgae‐co2‐biomass Cycle Systemmentioning

confidence: 99%

Advances in the biological fixation of carbon dioxide by microalgae

Zhang

Liu

2021

J of Chemical Tech & Biotech

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Global warming caused by carbon dioxide (CO2) emissions is one of the most important topics of concern in the fields of science, environment and global economy. Carbon dioxide emissions have increased dramatically in recent years, and this trend is likely to continue with a projected increase of both global energy consumption and CO2 emissions by 51% in 2050 compared with 2005. To mitigate the negative impacts arising, a potential strategy to convert CO2 into renewable fuels or valuable chemicals can be applied. Bio‐CO2 emission reduction is receiving more and more attention as an environmentally friendly method. Microalgae are attracting worldwide attention in this regard owing to their exceptional speed of growth, resistance to harsh environments and low production costs. In this review, the biochemical principles of microalgae‐CO2 fixation and the research progress of microalgae strains used for CO2 fixation are reviewed and discussed. The latest progress in the co‐development of a microalgae carbon sequestration industry and other industries are provided, along with a survey of the progress in methods to improve microalgae‐CO2 fixation. Finally, the problems to be solved in the industry and its future directions of development are clarified. © 2021 Society of Chemical Industry (SCI).

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Corn First-Generation Bioethanol Unities with Energy and Dried Grains with Solubles (DDGS) Production

Mello

Vandenberghe

Valladares-Diestra

et al. 2022

Biofuel and Biorefinery Technologies

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Enhancement of microalgal lipid production in municipal wastewater: Fixation of CO2 from the power plant tail gas

Cited by 26 publications

References 1 publication

Algal biomass valorization for biofuel production and carbon sequestration: a review

Algal biomass valorization for biofuel production and carbon sequestration: a review

Advances in the biological fixation of carbon dioxide by microalgae

Corn First-Generation Bioethanol Unities with Energy and Dried Grains with Solubles (DDGS) Production

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