Combination of utilization of CO2 from flue gas of biomass power plant and medium recycling to enhance cost-effective Spirulina production

Cui, Hong; Yang, Zihan; Lü, Zhe; Wang, Qishuo; Liu, Jin; Song, Lirong

doi:10.1007/s10811-019-1736-y

Cited by 26 publications

(14 citation statements)

References 48 publications

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“…A similar CO 2 recovery with media-recycled Arthrospira culture was attempted by Cui et al [24]. They achieved a CO 2 fixation rate of 0.31 gCO 2 L −1 d −1 , which was similar to 0.32-0.36 gCO 2 L −1 d −1 of this study.…”

Section: Evaluation Of Co 2 Recovery With Media-recycled Arthrospira supporting

confidence: 87%

“…A previous study with a green alga Scenedesmus acuminatus reported differential inhibitive levels of DOC depending on growth stages, where DOC from the declining phase had severer inhibition than that from exponential and stationary phases [30]. Differential DOC inhibition levels were also observed between the indoor and outdoor culture of Arthrospira, where DOC in indoor culture inhibited the growth at as low DOC as 65 mg L −1 , while that in outdoor culture did not significantly inhibit the growth even at 900 mg L −1 [24]. Since the current semi-continuous culture maintained continuous growth, cells may not have excreted inhibitive DOC.…”

Section: Effect Of Medium Recyclingmentioning

confidence: 94%

“…In the current process, 75% of the harvested medium was recycled (Figure 1). According to Cui et al [24], the cost of alkaline agent reaches 91% of the total medium cost. The current medium recycling process saved 68% of the medium cost, under the assumption that other nutrients are supplemented at every recycling.…”

Section: Effect Of Medium Recyclingmentioning

confidence: 99%

“…In previous studies, optimization of culture condition [21], modeling based on separate experiments of CO 2 recovery and biomass production [22], and economic and energy analysis based on calculation [23] have been reported, little information has been obtained regarding the combined process of Arthrospira medium-recycled culture with CO 2 recovery. While a very recent paper described CO 2 recovery with Arthrospira [24], information on carbon mass balance in such conditions is scarce, and the effects of high CO 2 supply and medium recycle have not been clearly revealed. The knowledge of the destiny of CO 2 in media-recycling Arthrospira culture shall support environmentally and economically improved systems.…”

Section: Introductionmentioning

confidence: 99%

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Carbon Mass Balance in Arthrospira platensis Culture with Medium Recycle and High CO2 Supply

et al. 2019

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Medium recycling combined with CO2 recovery helps sustainable use of the alkaline medium in Arthrospira culture. However, high CO2 supply may cause inorganic carbon accumulation and pH reduction, which could result in low CO2 recovery and reduced algal growth. This study aimed to elucidate the effect of medium recycling and high CO2 supply through carbon mass balance analysis in Arthrospira culture. In all CO2 supply conditions, carbon supply was higher than Arthrospira carbon assimilation, which accounted for 30–58% of supply. However, CO2 recovery of nearly 100% and 63% for lower (0.20 and 0.39 gC L−1 d−1) and higher (0.59 gC L−1 d−1) CO2 supply rates were achieved, respectively, because of the high concentration of the alkaline agent. The excess carbon accumulated in the medium and ultimately escaped from the system in a form of dissolved inorganic carbon (DIC). Dissolved organic carbon (DOC) contributed to 16–24% of the total photosynthetically assimilated carbon, and the final concentration reached 260–367 mgC L−1, but there was no significant growth reduction caused by DIC and DOC accumulation. This study demonstrated the stability of the medium-recycling process even at high CO2 supply rates although a balanced supply is recommended for longer operations.

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Section: Evaluation Of Co 2 Recovery With Media-recycled Arthrospira supporting

confidence: 87%

Section: Effect Of Medium Recyclingmentioning

confidence: 94%

Section: Effect Of Medium Recyclingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Carbon Mass Balance in Arthrospira platensis Culture with Medium Recycle and High CO2 Supply

et al. 2019

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“…They highlighted that Spirulina can be produced using recycled medium, in spite of a reduce protein and lipid content. Cui et al (2019) showed that using flue gas from a biomass plant and recycling the growth to cultivate Spirulina sp. a 42% lower nutrient consumption was achieved, with no significant differences between fresh medium and recycled medium in terms of protein and phycocyanin contents.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Biomass and Lutein Production From Scenedesmus almeriensis: Effect of Carbon Dioxide Concentration and Culture Medium Reuse

et al. 2020

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The main purpose of this study is to investigate the effects of operative parameters and bioprocess strategies on the photo-autotrophic cultivation of the microalgae Scenedesmus almeriensis for lutein production. S. almeriensis was cultivated in a vertical bubble column photobioreactor (VBC-PBR) in batch mode and the bioactive compounds were extracted by accelerated solvent extraction with ethanol at 67 • C and 10 MPa. The cultivation with a volume fraction of CO 2 in the range 0-3.0%v/v showed that the highest biomass and lutein concentrations-3.7 g/L and 5.71 mg/g, respectively-were measured at the highest CO 2 concentration and using fresh growth medium. Recycling the cultivation medium from harvested microalgae resulted in decreased biomass and lutein content. The nutrient chemical composition analysis showed the highest consumption rates for nitrogen and phosphorus, with values higher than 80%, while sulfate and chloride were less consumed.

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Proof of concept of a novel in tandem biofilter photobioreactor system for valorization of volatile organic compounds: mineralization of methanol vapors coupled with use of CO₂ as a carbon source for Arthrospira maxima growth

Cruz‐García

Aizpuru

2021

J of Chemical Tech & Biotech

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BACKGROUND Methanol, a common air pollutant, can be converted to CO2 by biofiltration. In turn, biofilter CO2 streams, contributing to the greenhouse effect, could represent a zero‐cost carbon source for microalgal production. To assess the potential of the combination of both bioprocesses, cultivation of Arthrospira maxima, a major source of added‐value natural products, was carried out with three different carbon sources (bicarbonate mineral medium, CO2 from ambient air, and CO2 from a methanol biofilter outlet). RESULTS Methanol vapors were almost completely treated in the biofilter, achieving an elimination capacity of 148 ± 18 g m−3 h−1 for an inlet load of 157 ± 12 g m−3 h−1, while producing an average of 152 ± 42 g m−3 h−1 of CO2. Compared to cultivation in classic bicarbonate mineral medium, the resulting CO2 concentration in the biofilter outlet (0.5 ± 0.1% (v/v)) allowed for a 20% higher final production of A. maxima (1.3 g dry weight (DW) L−1 of medium). Moreover, the cultivation of A. maxima significantly reduced the carbon footprint of the biofilter, with a fixation rate of 302 mg CO2 L−1 h−1. Additionally, enriched CO2 concentrations coming from the biofilter outlet allowed for a 117% higher A. maxima productivity rate than ambient air (76.5 ± 2.9 vs. 35.3 ± 1.3 mg DW L−1 d−1). CONCLUSION Substantial reduction of the cost of microalgae production and treatment of gaseous contaminants can be carried out in tandem. Further optimization of hybrid bioprocesses could represent a win–win opportunity from both environmental and economic viewpoints. © 2021 Society of Chemical Industry (SCI).

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Combination of utilization of CO2 from flue gas of biomass power plant and medium recycling to enhance cost-effective Spirulina production

Cited by 26 publications

References 48 publications

Carbon Mass Balance in Arthrospira platensis Culture with Medium Recycle and High CO2 Supply

Carbon Mass Balance in Arthrospira platensis Culture with Medium Recycle and High CO2 Supply

Enhancing Biomass and Lutein Production From Scenedesmus almeriensis: Effect of Carbon Dioxide Concentration and Culture Medium Reuse

Proof of concept of a novel in tandem biofilter photobioreactor system for valorization of volatile organic compounds: mineralization of methanol vapors coupled with use of CO₂ as a carbon source for Arthrospira maxima growth

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Combination of utilization of CO2 from flue gas of biomass power plant and medium recycling to enhance cost-effective Spirulina production

Cited by 26 publications

References 48 publications

Carbon Mass Balance in Arthrospira platensis Culture with Medium Recycle and High CO2 Supply

Carbon Mass Balance in Arthrospira platensis Culture with Medium Recycle and High CO2 Supply

Enhancing Biomass and Lutein Production From Scenedesmus almeriensis: Effect of Carbon Dioxide Concentration and Culture Medium Reuse

Proof of concept of a novel in tandem biofilter photobioreactor system for valorization of volatile organic compounds: mineralization of methanol vapors coupled with use of CO2 as a carbon source for Arthrospira maxima growth

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Proof of concept of a novel in tandem biofilter photobioreactor system for valorization of volatile organic compounds: mineralization of methanol vapors coupled with use of CO₂ as a carbon source for Arthrospira maxima growth