Microalgal Biorefineries for Bioenergy Production: Can We Move from Concept to Industrial Reality?

Deprá, Mariany Costa; Santos, Aline Meireles dos; Severo, Ihana Aguiar; Santos, Andriéli Borges; Zepka, Leila Queiroz; Jacob‐Lopes, Eduardo

doi:10.1007/s12155-018-9934-z

Cited by 62 publications

(10 citation statements)

References 190 publications

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“…Harvesting cultivated biomass accounts for at least 20–30% of the total costs in producing microalgal biomass, and therefore, the biomass settleability is an important factor to consider, particularly in large-scale cultivation 7,37 . Chlorella species reportedly have good auto-settling properties, which, although not completely clarified, seems to be influenced by ecophysiological factors such as pH, ions, and co-existing bacterial species 38,39 .…”

Section: Resultsmentioning

confidence: 99%

Nutrient removal and microalgal biomass production from different anaerobic digestion effluents with Chlorella species

Kim

Lee

2019

Sci Rep

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Potential of microalgal cultivation as an alternative approach to the treatment of anaerobic digestion (AD) effluents was examined using two representative Chlorella species, Chlorella vulgaris (CV) and Chlorella protothecoides (CP). Both species effectively removed NH 4 + -N from the AD effluents from four digesters treating different wastes under different operating conditions. In all experimental cultures on the AD effluents, NH 4 + -N (initial concentration, 40 mg/L) was completely removed within 10 days without residual NO 3 − -N or NO 2 − -N in batch mode. Compared to CP, CV showed greater biomass and lipid yields (advantageous for biodiesel production), regardless of the media used. Prolonged nitrogen starvation significantly increased the lipid accumulation in all cultures on the AD effluents, and the effect was more pronounced in the CV than in the CP cultures. On the other hand, compared to CV, CP showed significantly faster settling (advantageous for biomass harvesting) in all media. Our results suggest that the Chlorella cultivation on AD effluents under non-sterile, mixed-culture conditions may provide a viable way to manage and valorize the problematic effluents. Diverse bacteria derived from the AD effluents co-existed and presumably interacted with the Chlorella species in the cultures.

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Section: Resultsmentioning

confidence: 99%

Nutrient removal and microalgal biomass production from different anaerobic digestion effluents with Chlorella species

Kim

Lee

2019

Sci Rep

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“…While seven of the literature reviews examined an aspect of geography in relation to supply chain resilience literature, the majority focused on the country of origin of the authors, rather than the source of data/supply chain. Approximately one-third of the literature reviews focused on a unique aspect of supply chain resilience, some as specific as criminality in food supply chains (Fassam and Dani 2017), bioenergy production (Deprá et al 2018), counterfeit medicines (Pinho de Lima et al 2018), or the water, energy, food nexus (Namany et al 2019); the other two thirds of the literature reviews focused on supply chain resilience more generally (Ali et al 2017;Datta 2017;Ivanov 2017).…”

Section: Current State Of Supply Chain Resilience Literature Review Pmentioning

confidence: 99%

Trends and applications of resilience analytics in supply chain modeling: systematic literature review in the context of the COVID-19 pandemic

2020

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The increasingly global context in which businesses operate supports innovation, but also increases uncertainty around supply chain disruptions. The COVID-19 pandemic clearly shows the lack of resilience in supply chains and the impact that disruptions may have on a global network scale as individual supply chain connections and nodes fail. This cascading failure underscores the need for the network analysis and advanced resilience analytics we find lacking in the existing supply chain literature. This paper reviews supply chain resilience literature that focuses on resilience modeling and quantification and connects the supply chain to other networks, including transportation and command and control. We observe a fast increase in the number of relevant papers (only 47 relevant papers were published in 2007-2016, while 94 were found in 2017-2019). We observe that specific disruption scenarios are used to develop and test supply chain resilience models, while uncertainty associated with threats including consideration of "unknown unknowns" remains rare. Publications that utilize more advanced models often focus just on supply chain networks and exclude associated system components such as transportation and command and control (C2) networks, which creates a gap in the research that needs to be bridged. The common goal of supply chain modeling is to optimize efficiency and reduce costs, but trade-offs of efficiency and leanness with flexibility and resilience may not be fully addressed. We conclude that a comprehensive approach to network resilience quantification encompassing the supply chain in the context of other social and physical networks is needed to address the emerging challenges in the field. The connection to systemic threats, such as disease pandemics, is specifically discussed.

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“…S2). The second and third generation biofuels consist of those produced from non-edible sources (e.g., Jatropha and algae) while electrofuel and microbiological fuel come under the fourth-generation biofuels [38,64]. The changes in the field of biomass energy reflected on the policy from time-to-time and are summarized in Table S1 [38,65].…”

Section: Expansionmentioning

confidence: 99%

Growth projections against set-target of renewable energy and resultant impact on emissions reduction in India

Chabhadiya

Srivastava

Pathak

2020

Environmental Engineering Research

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In accordance with the Paris Climate Agreement (COP21) and Sustainable Development Goals (SDGs), India is greatly focused on deployment of renewable energy (RE) for supplementing the energy requirements of the country. The present article assesses the validity of the promises offered by RE technologies in India and its necessary action to understand the gap between setting goals and the ground situation, which can also show a pathway to other developing countries. Therefore, the long-term projection perspectives on RE growth have been made using the India Energy Security Scenario-2047. In order to achieve the set target for emissions reduction of greenhouse gases (GHGs) i.e., 1209 MT CO2e in support of SDGs to the 2005 level by 2030, three renewable growth scenarios have been tested for transitioning the Indian energy system. Accordingly, the regression analysis reveals that the most desirable growth scenario will require a steady rise of RE contribution in the overall energy mix of India by 2030 from the current ~21% to 68% of the installed capacity. In this view, the present study highlights the exploration of new alternatives in long-term energy planning, and less on one-sided scenario to achieve the emissions’ reduction target.

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Microalgal Biorefineries for Bioenergy Production: Can We Move from Concept to Industrial Reality?

Cited by 62 publications

References 190 publications

Nutrient removal and microalgal biomass production from different anaerobic digestion effluents with Chlorella species

Nutrient removal and microalgal biomass production from different anaerobic digestion effluents with Chlorella species

Trends and applications of resilience analytics in supply chain modeling: systematic literature review in the context of the COVID-19 pandemic

Growth projections against set-target of renewable energy and resultant impact on emissions reduction in India

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