Anaerobic digestates from vinasse promote growth and lipid enrichment in Neochloris oleoabundans cultures

Olguín, Eugenia J.; Dorantes, Efraín; Castillo, Omar S.; Hernández-Landa, Víctor J.

doi:10.1007/s10811-015-0540-6

Cited by 38 publications

(24 citation statements)

References 40 publications

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“…The use of digestate vinasse was used to cultivate the microalgae Chlorella vulgaris (Marques et al, 2013;Candido and Lombardi, 2017) and Neochloris oleoabundans (Olguín et al, 2015). Initially, research shows that vinasse was highly toxic to C. vulgaris at concentrations greater than 4%, reaching allowable concentrations of about 8.6% after treatment (Marques et al, 2013).…”

Section: Ad Of Vinasse: Operation Energy Generation and Digestate Usementioning

confidence: 99%

“…The use of AD can represent a feasible opportunity for making vinasse an appropriate cultivation medium for microbial cultivation, such as in the use of fungi with resilience to unfavorable conditions of growth (Reis et al, 2014a). N. oleoabundans was able to grow on supplementation of vinasse up to 8%, with addition of sodium bicarbonate, achieving lipid concentrations up to 38.5%, high N-NH 4 + removal (85.2%), and high flocculation efficiency (42% after 30 min) (Olguín et al, 2015).…”

Section: Ad Of Vinasse: Operation Energy Generation and Digestate Usementioning

confidence: 99%

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Vinasse from Sugarcane Ethanol Production: Better Treatment or Better Utilization?

Reis

2017

Front. Energy Res.

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Ethanol production from sugarcane in Brazil is a well-established industry, with relatively simple operations and high yield. The ethanol primarily serves as a renewable fuel blending with gasoline and diesel to increase the energy security in Brazil. Several environmental concerns are emerged around the by-products from this industry. Vinasse, the liquid fraction generated from the rectification and distillation operations of ethanol, is a sulfur-rich, low pH, dark-colored, and odorous effluent, produced at volumes as high as 20-fold of ethanol. Traditional wastewater treatments, such as bioprocessing, advanced oxidative processes, anaerobic digestion (AD), and chemical-based processes, have been applied to vinasse management. Despite most of its utilization being in fertirrigation practices, vinasse may represent a key factor in enhancing profitability and environmental outcomes of a sugarcane-to-ethanol plant. The application of some upgrade solutions to sugarcane-derived vinasse may represent additional sources of energy, production of animal feed components, and reduction in water consumption within a plant. The use of mature technologies, yet not widespread in the sugarcane-to-ethanol industry, could help attenuate environmental concerns. Oxidation and chemical processes, AD, and microbial fermentation have been presented as alternative impactful alternatives to (i) reduce its organic and mineral load, converting it to a feedstock with fewer environmental applications when applied as fertilizer and (ii) to convert organic matter and nutrients to a nutritious biomass, simultaneously increasing water reclamation potential by plants. This mini-review article provides a critical and comprehensive summary of the alternatives developed or under development to vinasse management.

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Section: Ad Of Vinasse: Operation Energy Generation and Digestate Usementioning

confidence: 99%

Section: Ad Of Vinasse: Operation Energy Generation and Digestate Usementioning

confidence: 99%

Vinasse from Sugarcane Ethanol Production: Better Treatment or Better Utilization?

Reis

2017

Front. Energy Res.

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“…Bejerinck [8], Chlorella sorokiniana [9], Chlamydomonas reinhardii [10], Tetraselmis suecica [8], Scenedemsus sp. [11] and Neochloris oleoabundans [12]. The influence of nutrients on the algae growth in raw or digested stillage is mostly studied [5,6,8,9,11,12].…”

Section: Introductionmentioning

confidence: 99%

“…[11] and Neochloris oleoabundans [12]. The influence of nutrients on the algae growth in raw or digested stillage is mostly studied [5,6,8,9,11,12]. However, the influence of chemical oxygen demand (COD) concentration on the algal growth is controversial.…”

Section: Introductionmentioning

confidence: 99%

“…biomass production at a light intensity of 10000 lux [11]. Furthermore, even though digested samples have a significant presence of volatile fatty acids (VFA) which serve as an organic source of carbon [13], the production may need the add-on C-source in the form of NaHCO 3 [12] or CO 2 [5]. This phenomenon was not reported for raw stillage samples.…”

Section: Introductionmentioning

confidence: 99%

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Estimating the elemental biomass composition of Desmodesmus sp. cultivated in sugarcane stillage

Tasić¹,

Rios²,

Santos³

et al. 2016

Adv techn

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Cultivating algae on various stillage types present an alternative to current stillage application for fertirrigation of the sugarcane. The objective of this study was to determine how algal concentration, nutrient removal efficiency and elemental composition of Desmodesmus sp. algae change in response to different (raw and digested) types of stillage. Algal biomass was cultivated and harvested at laboratory scale. Obtained concentrations were 0.5 g/L and 0.3 g/L for Desmodesmus sp. grown in raw and digested stillage, respectively. At these concentrations, total carbon (TC) and total nitrogen (TN as Total Kjeldahl Nitrogen or N-TKN) removal from stillage medium accounted 39.78% and 5.58% for raw; 20.83% and 5.43% for digested stillage, respectively. The Desmodesmus sp. used in the present study contained high carbon and oxygen content, similar to other algal species. Calcium, phosphorus, and sulfur were the three most abundant inorganic elements. Both biomasses were free of chlorine and with the low content of potassium. The phosphorous content in both biomasses was in the range of 6.03%-6.84%, which could classify these biomasses as useful plant nutrients.

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Recent advances in the integrated biorefinery concept for the valorization of algal biomass through sustainable routes

Katiyar

Banerjee

Arora

2021

Biofuels Bioprod Bioref

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Microalgae have garnered significant interest among researchers and industries as a potential source of valuable products that can find applications in the food, feed, biofuels, cosmetics, pharmaceuticals, and nutraceuticals industries. Microalgae can remediate various waste streams. This review discusses the current trends in the valorization of algal biomass and proposes integrated biorefinery approaches to produce high‐value products by sustainable routes. In such processes, the waste streams can be used as a source of nutrients for the production of microalgal biomass, rich in high‐quality lipids, digestible proteins and bioactive compounds. The integrated approaches presented in this study offer cost‐effective and environment‐friendly processing techniques while expanding the bioproducts portfolio in the food and therapeutics sector. The simultaneous or sequential extraction of valuable compounds from microalgae makes the biorefinery proposition appealing for waste minimization, revenue diversification, and complete feedstock utilization. The systematic exploration of microalgae on a large scale is required to evaluate its future as a favorable resource for biorefinery products. This would also necessitate detailed techno‐economic, environmental, and lifecycle assessment for the biorefinery processes. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd

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Anaerobic digestates from vinasse promote growth and lipid enrichment in Neochloris oleoabundans cultures

Cited by 38 publications

References 40 publications

Vinasse from Sugarcane Ethanol Production: Better Treatment or Better Utilization?

Vinasse from Sugarcane Ethanol Production: Better Treatment or Better Utilization?

Estimating the elemental biomass composition of Desmodesmus sp. cultivated in sugarcane stillage

Recent advances in the integrated biorefinery concept for the valorization of algal biomass through sustainable routes

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