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

Environmental Chemistry Letters, Journal Year: 2021, Volume and Issue: 19(6), P. 4075 - 4118

Published: July 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.

Language: Английский

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Performance evaluation of anaerobic digestion technology for energy recovery from organic fraction of municipal solid waste: A review

Energy, Journal Year: 2020, Volume and Issue: 197, P. 117253 - 117253

Published: Feb. 25, 2020

Language: Английский

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Microbiological insights into anaerobic digestion for biogas, hydrogen or volatile fatty acids (VFAs): a review

Bioengineered, Journal Year: 2022, Volume and Issue: 13(3), P. 6521 - 6557

Published: Feb. 25, 2022

In the past decades, considerable attention has been directed toward anaerobic digestion (AD), which is an effective biological process for converting diverse organic wastes into biogas, volatile fatty acids (VFAs), biohydrogen, etc. The microbial bioprocessing takes part during AD of substantial significance, and one crucial approaches deep adequate understanding manipulating it different products microbiology. Due to highly complexity microbiome, critically important study involved microorganisms in AD. recent years, addition traditional methods, novel molecular techniques meta-omics have developed provide accurate details about communities Better microbiomes could guide us identifying controlling various factors both improving diverting metabolic pathway production selective bio-products. This review covers platforms that results final from microbiological point view. also highlights distinctive interactions occurring among communities. Furthermore, assessment these existing digesters discussed more insights their structure, dynamics, pathways. Moreover, affecting each platform are highlighted. Finally, provides some applications bio-products deals with challenges future perspectives

Language: Английский

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A comprehensive review on the framework to valorise lignocellulosic biomass as biorefinery feedstocks

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 743, P. 140630 - 140630

Published: July 8, 2020

Language: Английский

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Up-Flow Anaerobic Sludge Blanket (UASB) Technology for Energy Recovery: A Review on State-of-the-Art and Recent Technological Advances

Bioengineering, Journal Year: 2020, Volume and Issue: 7(2), P. 43 - 43

Published: May 10, 2020

Up-flow anaerobic sludge blanket (UASB) reactor belongs to high-rate systems, able perform reaction at reduced hydraulic retention time, if compared traditional digesters. In this review, the most recent advances in UASB applications are critically summarized and discussed, with outline on critical aspects for further possible future developments. Beside treatment of soluble biodegradable substrates, research is actually focusing refractory slowly degradable matrices, thanks an improved understanding microbial community composition hydrodynamics, together utilization powerful modeling tools. Innovative approaches include use nitrogen removal, as well hydrogen volatile fatty acid production. Co-digestion complementary substrates available same territory being extensively studied increase biogas yield provide smooth continuous operations a circular economy perspective. Particular importance given decentralized treatment, electricity heat local users integration other renewable energies. Proper pre-treatment application increases yield, while successive post-treatment needed meet required effluent standards, also from toxicological An increased full-scale technology desirable achieve sustainability scopes, efficient exploitation, fulfilling energy targets green-house gases emission reduction, particular tropical countries, where limited heating required.

Language: Английский

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Two-Stage anaerobic digestion in agroindustrial waste treatment: A review

Journal of Environmental Management, Journal Year: 2020, Volume and Issue: 281, P. 111854 - 111854

Published: Dec. 25, 2020

Language: Английский

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Recycling municipal, agricultural and industrial waste into energy, fertilizers, food and construction materials, and economic feasibility: a review

Environmental Chemistry Letters, Journal Year: 2023, Volume and Issue: 21(2), P. 765 - 801

Published: Jan. 7, 2023

Abstract The global amount of solid waste has dramatically increased as a result rapid population growth, accelerated urbanization, agricultural demand, and industrial development. world's is expected to reach 8.5 billion by 2030, while production will 2.59 tons. This deteriorate the already strained environment climate situation. Consequently, there an urgent need for methods recycle waste. Here, we review recent technologies treat waste, assess economic feasibility transforming into energy. We focus on municipal, agricultural, found that methane captured from landfilled-municipal in Delhi could supply 8–18 million houses with electricity generate 7140 gigawatt-hour, prospected potential 31,346 77,748 gigawatt-hour 2030 2060, respectively. Valorization food anaerobic digestion systems replace 61.46% natural gas 38.54% coal use United Kingdom, reduce land 1.8 hectares if provided animal feeds. also estimated levelized cost landfill waste-to-energy $0.04/kilowatt-hour $0.07/kilowatt-hour, payback time 0.73–1.86 years 1.17–2.37 years, Nonetheless, current treatment are still inefficient, particular treating containing over 60% water.

Language: Английский

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Lignocellulosic biomass as an optimistic feedstock for the production of biofuels as valuable energy source: Techno-economic analysis, Environmental Impact Analysis, Breakthrough and Perspectives

Environmental Technology & Innovation, Journal Year: 2021, Volume and Issue: 24, P. 102080 - 102080

Published: Nov. 1, 2021

Lignocellulose biomass is considered to be the prevalent and economic substrate for biofuel generation. The presence of certain refractory components in causes major obstacle enzymatic hydrolysis thus it has improved by advancement pretreatment technology. focused on enhancement altering polymeric substance into monomers. A suitable converts easily accessible enzymes enhances fermentation during production. Notwithstanding research development activities towards goalmouth integrated production are needed optimised terms environmental way. problems associated with distress enormous several decades order replace fossil fuels lignocellulosic feedstock. various approaches were implemented lignocellulose based concerning net cost energy demand upgrading process design. In present review, technologies from feedstock discussed along inhibitory compounds generations pretreatment. Furthermore, techno-economic aspects discussed. This review highlights biorefinery which includes saccharification sugar lignin biofuels.

Language: Английский

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Lignocellulosic Agricultural Waste Valorization to Obtain Valuable Products: An Overview

Recycling, Journal Year: 2023, Volume and Issue: 8(4), P. 61 - 61

Published: July 20, 2023

The sustainable management of lignocellulosic agricultural waste has gained significant attention due to its potential for the production valuable products. This paper provides an extensive overview valorization strategies employed convert into economically and environmentally manuscript examines conversion routes products from waste. These include biofuels, such as bioethanol biodiesel, via biochemical thermochemical processes. Additionally, synthesis platform chemicals, furfural, levulinic acid, xylose, is explored, which serve building blocks manufacturing polymers, resins, other high-value chemicals. Moreover, this highlights in generating bio-based materials, including composites, plastics, adsorbents. utilization feedstock enzymes, organic acids, bioactive compounds also discussed. challenges opportunities associated with are addressed, encompassing technological, economic, environmental aspects. Overall, a comprehensive waste, highlighting significance transitioning towards circular bioeconomy. insights presented here aim inspire further research development field valorization, fostering innovative approaches promoting abundant resource

Language: Английский

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Emerging challenges for the agro-industrial food waste utilization: A review on food waste biorefinery

Bioresource Technology, Journal Year: 2022, Volume and Issue: 362, P. 127790 - 127790

Published: Aug. 13, 2022

Language: Английский

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