Conversion of biomass to biofuels and life cycle assessment: a review

Environmental Chemistry Letters, Год журнала: 2021, Номер 19(6), С. 4075 - 4118

Опубликована: Июль 23, 2021

Abstract The global energy demand is projected to rise by almost 28% 2040 compared current levels. Biomass a promising source for producing either solid or liquid fuels. Biofuels are alternatives fossil fuels reduce anthropogenic greenhouse gas emissions. Nonetheless, policy decisions biofuels should be based on evidence that produced in sustainable manner. To this end, life cycle assessment (LCA) provides information environmental impacts associated with biofuel production chains. Here, we review advances biomass conversion and their impact assessment. Processes gasification, combustion, pyrolysis, enzymatic hydrolysis routes fermentation. Thermochemical processes classified into low temperature, below 300 °C, high higher than i.e. combustion pyrolysis. Pyrolysis because it operates at relatively lower temperature of up 500 which 800–1300 °C. We focus 1) the drawbacks advantages thermochemical biochemical various possibility integrating these better process efficiency; 2) methodological approaches key findings from 40 LCA studies pathways published 2019 2021; 3) bibliometric trends knowledge gaps using routes. integration hydrothermal circular economy.

Язык: Английский

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Biologically-mediated carbon capture and utilization by microalgae towards sustainable CO2 biofixation and biomass valorization – A review

Chemical Engineering Journal, Год журнала: 2021, Номер 427, С. 130884 - 130884

Опубликована: Июнь 17, 2021

The continuously rising emission of carbon dioxide (CO2) is a universal hazard which urgently requires collaborative action between policymakers and scientists. International treaties such as the Paris Agreement (with 196 signatories) reflect importance anthropogenic climate change truly global public concern. Towards aim recovery, most broadly utilized CO2 reduction strategies, including capture storage (CCS); capture, utilization, (CCUS); utilization (CCU) are reviewed herein. Of these methods, CCU shows greatest potential by recycling captured harnessing it resource to generate emissions-neutral or -negative value-added products (VAPs). Within methodologies, biologically-mediated (bio-CCU) microalgae promising biotechnology drastically reduce emissions. This review therefore details mechanisms photosynthesis sequester incorporate into valuable biomolecules. Microalgal cells utilize precursors macromolecules, lipids, proteins, carbohydrates, pigments; all discussed within frame industrial relevance market value. biofixation clearly demonstrated content myriad VAPs they produce. Moreover, pathways towards decreasing footprint (via prior atmosphere) increasing handprint (reducing emissions consuming CO2-neutral products) related bio-CCU presented Finally, existing challenges knowledge gaps acknowledged described, future research needs recommended.

Язык: Английский

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Recent advances biodegradation and biosorption of organic compounds from wastewater: Microalgae-bacteria consortium - A review

Bioresource Technology, Год журнала: 2021, Номер 344, С. 126159 - 126159

Опубликована: Окт. 20, 2021

Язык: Английский

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Continuous cultivation of microalgae in photobioreactors as a source of renewable energy: Current status and future challenges

Renewable and Sustainable Energy Reviews, Год журнала: 2021, Номер 154, С. 111852 - 111852

Опубликована: Ноя. 17, 2021

Язык: Английский

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Algae-mediated antibiotic wastewater treatment: A critical review

Environmental Science and Ecotechnology, Год журнала: 2022, Номер 9, С. 100145 - 100145

Опубликована: Янв. 1, 2022

The existence of continually increasing concentrations antibiotics in the environment is a serious potential hazard due to their toxicity and persistence. Unfortunately, conventional treatment techniques, such as those utilized wastewater plants, are not efficient for containing antibiotic. Recently, algae-based technologies have been found be sustainable promising technique antibiotic removal. Therefore, this review aims provide critical summary important role treatment. Algal removal mechanisms including bioadsorption, bioaccumulation, biodegradation discussed detail, with using algae-bacteria consortia treatment, integration algae other microorganisms (fungi multiple algal species), hybrid constructed wetlands, factors affecting degradation comprehensively described assessed. In addition, use precursor production biochar highlighted, along modification materials improve its capacity advanced oxidation processes. Furthermore, recent novel approaches enhancing removal, genetic engineering enhance bioelectrochemical systems discussed. Finally, some based on review, key future research perspectives proposed. Overall, systematically presents current progress algae-mediated technologies, providing insights improved alleviation pollution aquatic environments.

Язык: Английский

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Microalgae-bacteria consortium for wastewater treatment and biomass production

The Science of The Total Environment, Год журнала: 2022, Номер 838, С. 155871 - 155871

Опубликована: Май 11, 2022

Язык: Английский

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Microalgae-based products: Food and public health

Future Foods, Год журнала: 2022, Номер 6, С. 100157 - 100157

Опубликована: Июнь 15, 2022

Язык: Английский

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Global market and economic analysis of microalgae technology: Status and perspectives

Bioresource Technology, Год журнала: 2022, Номер 357, С. 127329 - 127329

Опубликована: Май 16, 2022

Язык: Английский

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Resource recovery from industrial effluents through the cultivation of microalgae: A review

Bioresource Technology, Год журнала: 2021, Номер 337, С. 125461 - 125461

Опубликована: Июнь 26, 2021

Язык: Английский

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Sustainability and carbon neutralization trends in microalgae bioenergy production from wastewater treatment: A review

Bioresource Technology, Год журнала: 2022, Номер 364, С. 128057 - 128057

Опубликована: Окт. 1, 2022

Язык: Английский

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