Bio-ethanol production: A route to sustainability of fuels using bio-based heterogeneous catalyst derived from waste

Gohain, Minakshi; Hasin, Maskura; Eldiehy, Khalifa S.H.; Bardhan, Pritam; Laskar, Khairujjaman; Phukon, H.; Mandal, Manabendra; Kalita, Dipul; Deka, Dhanapati

doi:10.1016/j.psep.2020.08.046

Cited by 43 publications

(15 citation statements)

References 72 publications

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“…The study found that S. cerevisiae was able to convert algal biomass to ethanol efficiently, with results that encourage the use of algal biomass as feedstock for ethanol production. In addition, the authors in [ 32 ] compared the use of various treatment modes and achieved 8.20 g·L −1 . They concluded that the variation in bioethanol yield and concentration was due to the pre-treatment steps used.…”

Section: Resultsmentioning

confidence: 99%

Municipal Landfill Leachate Treatment and Sustainable Ethanol Production: A Biogreen Technology Approach

et al. 2022

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Sustainable material sources are an important agenda to protect the environment and to meet human needs. In this study, Scenedesmus sp. was used to treat municipal landfill leachate via batch and continuous cultivation modes to protect the environment and explore sufficient biomass production for bioethanol production using Saccharomyces cerevisiae. Physicochemical characteristics of leachate were determined for the phases before, during, and after the process. Batch and continuous cultivation were used to treat raw leachate to determine optimum conditions for treatment. Then, the biomass of Scenedesmus sp. with and without sonication was used as a substrate for ethanol production. Sonication was carried out for biomass cell disruption for 20 min at a frequency of 40 kHz. Through batch cultivation mode, it was found that pH 7 was the optimum condition for leachate treatment. Continuous cultivation mode had the highest removal values for COD, phosphorus, and carbohydrate, namely 82.81%, 79.70%, and 84.35%, respectively, among other modes. As for ethanol production, biomass without sonication with 9.026 mg·L−1 ethanol, a biomass concentration of 3.300 µg·L−1, and pH 5 were higher than biomass with sonication with 5.562 mg·L−1 ethanol, a biomass concentration of 0.110 µg·L−1, and pH 5. Therefore, it is evident that the leachate has the potential to be treated by Scenedesmus sp. and converted to bioethanol in line with the concept of sustainable materials.

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Section: Resultsmentioning

confidence: 99%

Municipal Landfill Leachate Treatment and Sustainable Ethanol Production: A Biogreen Technology Approach

et al. 2022

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“…Ethanol, typically a biomass-based renewable fuel (recognized as bio-ethanol), is produced through the alcoholic agitation of animal and/or agricultural residuals [153] , [154] . Ethanol is generally classified into two classes: hydrous and anhydrous ethanol.…”

Section: Conversion Of Ppe Kits Into a Liquid Biofuelmentioning

confidence: 99%

Key ingredients and recycling strategy of personal protective equipment (PPE): Towards sustainable solution for the COVID-19 like pandemics

Siwal

Chaudhary

Saini

et al. 2021

Journal of Environmental Chemical Engineering

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The COVID-19 pandemic has intensified the complications of plastic trash management and disposal. The current situation of living in fear of transmission of the COVID-19 virus has further transformed our behavioural models, such as regularly using personal protective equipment (PPE) kits and single-use applications for day to day needs etc. It has been estimated that with the passage of the coronavirus epidemic every month, there is expected use of 200 billion pieces of single-use facemasks and gloves. PPE are well established now as life-saving items for medicinal specialists to stay safe through the COVID-19 pandemic. Different processes such as glycolysis, hydrogenation, aminolysis, hydrolysis, pyrolysis, and gasification are now working on finding advanced technologies to transfer waste PPE into value-added products. Here, in this article, we have discussed the recycling strategies of PPE, important components (such as medical gloves, gowns, masks & respirators and other face and eye protection) and the raw materials used in PPE kits. Further, the value addition methods to recycling the PPE kits, chemical & apparatus used in recycling and recycling components into value-added products. Finally, the biorenewable materials in PPE for textiles components have been discussed along with concluded remarks.

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“…Ethanol, which is usually a biomass-grounded renewable fuel (known as bio-ethanol), is formed by the alcoholic fermentation of animal and/or agricultural residues [51,52]. Ethanol is normally produced in two forms: hydrous and anhydrous ethanol.…”

Section: Ethanolmentioning

confidence: 99%

State of Art of Using Biofuels in Spark Ignition Engines

Elfasakhany

2021

Energies

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Biofuels are receiving increased scientific attention, and recently different biofuels have been proposed for spark ignition engines. This paper presents the state of art of using biofuels in spark ignition engines (SIE). Different biofuels, mainly ethanol, methanol, i-butanol-n-butanol, and acetone, are blended together in single dual issues and evaluated as renewables for SIE. The biofuels were compared with each other as well as with the fossil fuel in SIE. Future biofuels for SIE are highlighted. A proposed method to reduce automobile emissions and reformulate the emissions into new fuels is presented and discussed. The benefits and weaknesses of using biofuels in SIE are summarized. The study established that ethanol has several benefits as a biofuel for SIE; it enhanced engine performance and decreased pollutant emissions significantly; however, ethanol showed some drawbacks, which cause problems in cold starting conditions and, additionally, the engine may suffer from a vapor lock situation. Methanol also showed improvements in engine emissions/performance similarly to ethanol, but it is poisonous biofuel and it has some sort of incompatibility with engine materials/systems; its being miscible with water is another disadvantage. The lowest engine performance was displayed by n-butanol and i-butanol biofuels, and they also showed the greatest amount of unburned hydrocarbons (UHC) and CO emissions, but the lowest greenhouse effect. Ethanol and methanol introduced the highest engine performance, but they also showed the greatest CO2 emissions. Acetone introduced a moderate engine performance and the best/lowest CO and UHC emissions. Single biofuel blends are also compared with dual ones, and the results showed the benefits of the dual ones. The study concluded that the next generation of biofuels is expected to be dual blended biofuels. Different dual biofuel blends are also compared with each other, and the results showed that the ethanol–methanol (EM) biofuel is superior in comparison with n-butanol–i-butanol (niB) and i-butanol–ethanol (iBE).

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Bio-ethanol production: A route to sustainability of fuels using bio-based heterogeneous catalyst derived from waste

Cited by 43 publications

References 72 publications

Municipal Landfill Leachate Treatment and Sustainable Ethanol Production: A Biogreen Technology Approach

Municipal Landfill Leachate Treatment and Sustainable Ethanol Production: A Biogreen Technology Approach

Key ingredients and recycling strategy of personal protective equipment (PPE): Towards sustainable solution for the COVID-19 like pandemics

State of Art of Using Biofuels in Spark Ignition Engines

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