The potential of carbon dioxide capture and sequestration with algae

Tsai, David Dah-Wei; Chen, Paris Honglay; Ramaraj, Rameshprabu

doi:10.1016/j.ecoleng.2016.10.049

Cited by 64 publications

(30 citation statements)

References 25 publications

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“…As defined, algae were universally accepted as the proper solution for monitoring the greenhouse gas emissions. The research has demonstrated the efficient uptake of CO 2 (the amount of 159 mg/l per/ day with 93% of CO 2 consumption efficiency) (Tsai et al, 2017). The capacity of microalgae to fix CO 2 enables to allocate carbon in cells of algae (Klinthong et al, 2015), pH controls CO 2 supply, which means carbon capture (Ying et al, 2014).…”

Section: Co 2 (Eg Flue Gas)mentioning

confidence: 99%

Verification of the Green Microalgae Biomass Use for Biogas Production

Głowacka

Gaduš

2019

Acta Regionalia Et Environmentalica

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The article reviews the energy potential of microalgae as an alternative raw material for anaerobic digestion. Currently, energy security is one of the main topics among researchers. The amount of generated fossil fuels is limited, it is a question of time when fossil fuels will not continue to be accessible at low cost. There is a need to find an alternative carrier of energy which will replace the fossil fuels in the World. Green microalgae can be proposed as a possible bio raw-material, which can be used as an input material in order to produce energy. Lots of alternative technologies of algae cultivation are currently being developed all over the world. There is a necessity to search for a sensible way to produce algal biomass for bioenergy purposes, while maintaining all requirements involved in environmental and economic issues. The research results presented in the science article show that microalgae biomass is the proper alternative material for biogas production with the method of anaerobic fermentation. We believe that these research results can contribute to the future development of all forms of renewable energy in the Slovak Republic.

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Section: Co 2 (Eg Flue Gas)mentioning

confidence: 99%

Verification of the Green Microalgae Biomass Use for Biogas Production

Głowacka

Gaduš

2019

Acta Regionalia Et Environmentalica

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“…Another major raw material required for the growth of algae is carbon dioxide. There is a growing recognition that microalgae are among the most productive biological organisms for biomass production and carbon capture [ 8 ]. The CO 2 fixation efficiency of green algae is 10–50 times higher than terrestrial plants, be it from atmospheric air with low CO 2 concentration or from flue gases with 12% to 15% of CO 2 [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

A novel nanoemulsion-based microalgal growth medium for enhanced biomass production

Nigam¹,

Pant²,

Singh

2021

Biotechnol Biofuels

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Background Microalgae are well-established feedstocks for applications ranging from biofuels to valuable pigments and therapeutic proteins. However, the low biomass productivity using commercially available growth mediums is a roadblock for its mass production. This work describes a strategy to boost algal biomass productivity by using an effective CO2 supplement. Results In the present study, a novel nanoemulsion-based media has been tested for the growth of freshwater microalgae strain Chlorella pyrenoidosa. Two different nanoemulsion-based media were developed using 1% silicone oil nanoemulsion (1% SE) and 1% paraffin oil nanoemulsion (1% PE) supplemented in Blue-green 11 media (BG11). After 12 days of cultivation, biomass yield was found highest in 1% PE followed by 1% SE and control, i.e., 3.20, 2.75, and 1.03 g L−1, respectively. The chlorophyll-a synthesis was improved by 76% in 1% SE and 53% in 1% PE compared with control. The respective microalgal cell numbers for 1% PE, 1% SE and control measured using the cell counter were 3.00 × 106, 2.40 × 106, and 1.34 × 106 cells mL−1. The effective CO2 absorption tendency of the emulsion was highlighted as the key mechanism for enhanced algal growth and biomass production. On the biochemical characterization of the produced biomass, it was found that the nanoemulsion-cultivated C. pyrenoidosa had increased lipid (1% PE = 26.80%, 1% SE = 23.60%) and carbohydrates (1% PE = 17.20%, 1% SE = 18.90%) content compared to the control (lipid = 18.05%, carbohydrates = 13.60%). Conclusions This study describes a novel nanoemulsion which potentially acts as an effective CO2 supplement for microalgal growth media thereby increasing the growth of microalgal cells. Further, nanoemulsion-cultivated microalgal biomass depicts an increase in lipid and carbohydrate content. The approach provides high microalgal biomass productivity without altering morphological characteristics like cell shape and size as revealed by field emission scanning electron microscope (FESEM) images. Graphical abstract

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“…Microalgae cultivations can use CO 2 from flue gases of power stations containing SOx and NOx, and can be coupled with wastewater treatment plants for the remediation of nitrates and phosphates, heavy metals in tertiary wastewater, and for removing secondary pollutants, e.g., pharmaceuticals [ 12 ]. Microalgae have been found to have a higher CO 2 uptake rate than forests [ 13 ]. Although large-scale microalgal cultivation for biofuels has been limited due to concerns of economic viability and sustainability, many companies are successfully producing biomass and added-value chemicals, such as pigments (β-carotene, astaxanthin, phycocyanin) and omega-3 fatty acids (docasahexaneoic acid and eicosapentaenoic acid).…”

Section: Introduction—the Carbon Calamitymentioning

confidence: 99%

Diatoms for Carbon Sequestration and Bio-Based Manufacturing

Sethi

Butler

Shuhaili

et al. 2020

Biology

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Carbon dioxide (CO2) is a major greenhouse gas responsible for climate change. Diatoms, a natural sink of atmospheric CO2, can be cultivated industrially in autotrophic and mixotrophic modes for the purpose of CO2 sequestration. In addition, the metabolic diversity exhibited by this group of photosynthetic organisms provides avenues to redirect the captured carbon into products of value. These include lipids, omega-3 fatty acids, pigments, antioxidants, exopolysaccharides, sulphated polysaccharides, and other valuable metabolites that can be produced in environmentally sustainable bio-manufacturing processes. To realize the potential of diatoms, expansion of our knowledge of carbon supply, CO2 uptake and fixation by these organisms, in conjunction with ways to enhance metabolic routing of the fixed carbon to products of value is required. In this review, current knowledge is explored, with an evaluation of the potential of diatoms for carbon capture and bio-based manufacturing.

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The potential of carbon dioxide capture and sequestration with algae

Cited by 64 publications

References 25 publications

Verification of the Green Microalgae Biomass Use for Biogas Production

Verification of the Green Microalgae Biomass Use for Biogas Production

A novel nanoemulsion-based microalgal growth medium for enhanced biomass production

Diatoms for Carbon Sequestration and Bio-Based Manufacturing

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