Current developments and challenges of green technologies for the valorization of liquid, solid, and gaseous wastes from sugarcane ethanol production

Sydney, Eduardo Bittencourt; Carvalho, Júlio César de; Letti, Luiz Alberto Júnior; Magalhães, Antônio Irineudo; Karp, Susan Grace; Martínez-Burgos, Walter José; Candeo, Esteffany de Souza; Rodrigues, Cristine; Vandenberghe, Luciana Porto de Souza; Neto, Carlos José Dalmas; Torres, Luis Alberto Zevallos; Medeiros, Adriane Bianchi Pedroni; Woiciechowski, Adenise Lorenci; Soccol, Carlos Ricardo

doi:10.1016/j.jhazmat.2020.124059

Cited by 41 publications

(21 citation statements)

References 123 publications

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“…For example, biodiesel is obtained from the transesterification of vegetable oils and animal fats, whereas methane and biohydrogen are both produced both the AD of any biodegradable substrate and by pyrolysis [17]. Another source of byproducts for bioethanol production is the sugarcane industry, whose byproducts have been proposed for AD, microbial fermentation, and microalgae cultivation [18].…”

Section: Agri-food Waste: a Rising Problem Or A Valuable Resource?mentioning

confidence: 99%

Fermentation of Agri-Food Waste: A Promising Route for the Production of Aroma Compounds

Saadoun

Bertani

Levante

et al. 2021

Foods

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Food waste and byproducts are generated along the entire food processing and storage chain. The large amount of waste deriving from the whole process represents not only a great economic loss but also an important ethical and environmental issue in terms of failure to recycle potentially reusable materials. New, clear strategies are needed to limit the amount of waste produced and, at the same time, promote its enhancement for further conversion and application to different industrial fields. This review gives an overview of the biological approaches used so far to exploit agri-food wastes and byproducts. The application of solid-state fermentation by different microorganisms (fungi, yeasts, bacteria) to produce several value-added products was analyzed, focusing on the exploitation of lactic acid bacteria as workhorses for the production of flavoring compounds.

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Section: Agri-food Waste: a Rising Problem Or A Valuable Resource?mentioning

confidence: 99%

Fermentation of Agri-Food Waste: A Promising Route for the Production of Aroma Compounds

Saadoun

Bertani

Levante

et al. 2021

Foods

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“…Brazil produces more than 600 million tons of sugarcane per year occupying only 1.1% of the country's land area, while the annual production of 116 million tons of soybean and 84 million tons of corn occupy 4.1% and 1.9% of land area, respectively. Sugarcane cultivation is concentrated in the center‐south and northeast regions of Brazil, distant from the rainforest located in the Amazon region 73,74 …”

Section: Life Cycle Assessmentmentioning

confidence: 99%

“…Sugarcane cultivation is concentrated in the center-south and northeast regions of Brazil, distant from the rainforest located in the Amazon region. 73,74 However, besides controlling the expansion of sugarcane in the Cerrado or savanna and Atlantic forest biomes, where most of the production is located, it is important to consider possible indirect land use change (ILUC) resulting from the expansion of sugarcane cultivation, e.g. the displacement of pasture or grain cultivation areas to other regions.…”

Section: Life Cycle Assessmentmentioning

confidence: 99%

Bioeconomy and biofuels: the case of sugarcane ethanol in Brazil

Karp¹,

Medina

Letti³

et al. 2021

Biofuels Bioprod Bioref

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Brazilian bioethanol is one of the most prominent biofuels produced on a large scale, representing 30% of the global fuel ethanol production share. Around 8.6 billion gallons were produced in 2019, second only to the US fuel ethanol production in the same period (15.8 billion gallons). Obtained from sugarcane in a highly energy‐efficient process, the biofuel, which can be used in Brazil as 100% ethanol (hydrated, minimum mass content of 92.5%) or in a volume proportion of 27% (anhydrous ethanol) in common gasoline, has contributed to the reduction of oil dependency and CO2 emissions, as well as to the development of an important economic sector. Pioneer biofuel policies and important advances in science and technology led to the establishment of a 46% renewable energy matrix. In this manuscript, an overview of the impacts of ethanol production and utilization will be given, with respect to environmental and socio‐economic concerns. The public policies and some technical aspects of sugarcane and ethanol production and energy cogeneration will be reviewed and discussed. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…For example, in factories that use sugarcane, sugarcane bagasse is used to generate steam and energy by burning the residue, molasses, the by-product of the crystallization of raw sugar, in the generation of ethanol, and many investigations are carried out for the reuse of vinasse, a residue from the distillation of fermented juice, such as fertirrigation. Thus, a modern factory should contain, besides the production of sugar, the generation of bioenergy, biogas (biohydrogen and biomethane), biomolecules (organic acids, enzymes, and lipids), fertilizers, and microalgae [51].…”

Section: Future Scenario For Ethanol Productionmentioning

confidence: 99%

Ethanol Production, Current Facts, Future Scenarios, and Techno-Economic Assessment of Different Biorefinery Configurations

Medina¹,

Magalhães²

2021

Bioethanol Technologies

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Currently, the continuous depletion of non-renewable resources of fuels and chemicals has promoted the research and development of different alternatives for the replacement of fossil resources as the feedstock of fuels and chemicals. At present, one of the most important biofuels in the current economy, is bioethanol, contributing to 65% of the total biofuels production. The production of bioethanol is an attractive alternative because it would be produced using indigenous and native raw material, therefore, the socioeconomic impact mainly in developing countries would be measured by the economic incomes and increase the quality of life of small and middle farmers. The first-generation ethanol production from sugarcane, corn, or beet sugar is broadly implemented at an industrial scale. However, the second-generation ethanol (2GE) is currently still in development stages, looking for different alternatives according to each region under study. The 2GE is also subject of diverse opinions about its economic viability and its real impact on the environment, especially due to the CO2 footprint. Consequently, this chapter has presented an overview of 2GE production, the possibilities of co-production of molecules of high value-added, and their economic and environmental assessment, including CO2 release, water consumption, solid residues disposal, and economic analysis to determine the best bioethanol based biorefinery configuration.

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Current developments and challenges of green technologies for the valorization of liquid, solid, and gaseous wastes from sugarcane ethanol production

Cited by 41 publications

References 123 publications

Fermentation of Agri-Food Waste: A Promising Route for the Production of Aroma Compounds

Fermentation of Agri-Food Waste: A Promising Route for the Production of Aroma Compounds

Bioeconomy and biofuels: the case of sugarcane ethanol in Brazil

Ethanol Production, Current Facts, Future Scenarios, and Techno-Economic Assessment of Different Biorefinery Configurations

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