Enhanced biohydrogen production from microalgae by diesel engine hazardous emissions fixation

Corrêa, Diego O.; Santos, Beatriz; Dias, Fernando; Vargas, J.V.C.; Mariano, André Bellin; Balmant, Wellington; Rosa, Marcos P.; Savi, Daiani Cristina; Kava, Vanessa; Glienke, Chirlei; Ordóñez, Juan C.

doi:10.1016/j.ijhydene.2017.05.176

Cited by 30 publications

(8 citation statements)

References 39 publications

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“…Light intensity is directly related to the photochemical phase of photosynthesis, when light is absorbed through chlorophyll molecules, the synthesis of adenosine triphosphate (ATP) and the photolysis of water. In general, photosynthesis can be defined as a process in which light energy synthesizes polysaccharides and oxygen from carbon dioxide and water [ 21 ]. Light intensity is one of the important aspects of growing microalgae and requires special attention.…”

Section: Factors Affecting Biomass Productionmentioning

confidence: 99%

Microalgae: A Promising Source of Valuable Bioproducts

et al. 2020

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Microalgae are a group of autotrophic microorganisms that live in marine, freshwater and soil ecosystems and produce organic substances in the process of photosynthesis. Due to their high metabolic flexibility, adaptation to various cultivation conditions as well as the possibility of rapid growth, the number of studies on their use as a source of biologically valuable products is growing rapidly. Currently, integrated technologies for the cultivation of microalgae aiming to isolate various biologically active substances from biomass to increase the profitability of algae production are being sought. To implement this kind of development, the high productivity of industrial cultivation systems must be accompanied by the ability to control the biosynthesis of biologically valuable compounds in conditions of intensive culture growth. The review considers the main factors (temperature, pH, component composition, etc.) that affect the biomass growth process and the biologically active substance synthesis in microalgae. The advantages and disadvantages of existing cultivation methods are outlined. An analysis of various methods for the isolation and overproduction of the main biologically active substances of microalgae (proteins, lipids, polysaccharides, pigments and vitamins) is presented and new technologies and approaches aimed at using microalgae as promising ingredients in value-added products are considered.

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Section: Factors Affecting Biomass Productionmentioning

confidence: 99%

Microalgae: A Promising Source of Valuable Bioproducts

et al. 2020

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Section: Biofuels From Microalgae In Brazilmentioning

confidence: 99%

“…Biohydrogen production from microalgae has been demonstrated only at the laboratory scale, as highlighted by Federal University of Paraná (UFPR) researchers [74,75]. Their recent study evaluated biohydrogen production from Scenedesmus obliquus microalgae, cultivated in a 11 L airlift photobioreactor fed with hazardous diesel engine emissions [74]. Vargas et al [75] proposed a mathematical model for hydrogen production in genetically modified Chlamydomonas reinhardtii, considered a model organism, and suggested that genetic improvements of the chloroplast H2 evolution activity would result in higher H2 production.…”

Section: Biofuels From Microalgae In Brazilmentioning

confidence: 99%

Advances in Microalgal Research in Brazil

Matos

2021

Braz. arch. biol. technol.

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Microalgae research has attracted interest worldwide and in order to advance algal biotechnology in Brazil, government has been funding several projects. In the last 10 years, two main funds were provided by the National Council of Scientific and Technological Development (CNPq) agency to researchers in Brazil, who study the potential uses of microalgae for biomass, bioproducts and biofuels production. These funded projects addressed aspects of algal strain identification, development of algal cultivation techniques, designing photobioreactors and raceway ponds, modeling harvesting and dewatering process, maximizing biomass and oil productivities, characterizing chemical composition with different extractions systems and determining physiochemical properties of biodiesel. This review presents the state of art of algal research conducted by Brazilian institutions. Special attention is given to the recent progress on microalgal cultivation, high-value products extracted from microalgae and potential biofuels production. This review may serve as a policy instrument for planning next steps for algal research in Brazil as well as for attracting attention from international researchers who work with microalgae and would like to pursue a future partnership on algal research with Brazilian research institutions.

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“…Tetradesmus obliquus microalgae (GenBank accession number: KY436159.1) were isolated at the Center of Research and Development of Self-sustaining Energy, Curitiba, Brazil, and identified according to Corre ˆa et al [21]. The algal cells were cultivated in 2 L Erlenmeyer flasks with Chu medium.…”

Section: Microalgaementioning

confidence: 99%

Effects of Flocculant Concentration and Temperature on the Membrane Separation Process in Microalgal Suspensions

et al. 2021

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By using different flocculant concentrations and temperatures with a tannin‐based flocculant, chitosan, and ferric chloride, the performance of a combined flocculation and membrane separation process in microalgal suspensions was evaluated. Permeate flux experiments were conducted for 30 min, and the effects of the flocculant concentration and temperature were analyzed. The zeta potential of the culture with and without flocculant approached zero with increasing temperature, in favor of microalgal cell agglomeration. At 40 °C, crossflow microfiltration showed a 27 % improvement in the permeate flux compared to 20 °C. Overall, the results showed a significant potential use of flocculants with increasing temperature, by providing considerably higher permeated fluxes.

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Enhanced biohydrogen production from microalgae by diesel engine hazardous emissions fixation

Cited by 30 publications

References 39 publications

Microalgae: A Promising Source of Valuable Bioproducts

Microalgae: A Promising Source of Valuable Bioproducts

Advances in Microalgal Research in Brazil

Effects of Flocculant Concentration and Temperature on the Membrane Separation Process in Microalgal Suspensions

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