Second-Generation Bio-Fuels: Strategies for Employing Degraded Land for Climate Change Mitigation Meeting United Nation-Sustainable Development Goals

Pramanik, Atreyi; Sinha, Aashna; Chaubey, Kundan Kumar; Hariharan, Sujata; Dayal, Deen; Bachheti, Rakesh Kumar; Bachheti, Archana; Chandel, Anuj K.

doi:10.3390/su15097578

Cited by 6 publications

(3 citation statements)

References 52 publications

(44 reference statements)

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“…The microbiome can develop functional redundancy and can perform multiple functions in environments where there is a need for vegetation recovery and implementation of sustainable land-use systems, preventing soil degradation, ensuring the productivity of marketable crops (Lira-Junior et al, 2020). For a short-term goal to generate income at national scale and maintain soil health, large-scale adoption of conservation systems, such as NTS, can be an important tool for mitigating GHGs, meeting the international commitments made at Convention of the Parties (COP 27) and meeting the global targets for bioenergy (Pramanik et al, 2023).…”

Section: Soc and Poc Stocks In Different Sizes Of Aggregatesmentioning

confidence: 99%

Can natural undisturbed revegetation restores soil organic carbon to levels under native climax vegetation under tropical semiarid climate?

Tomaz,

de Oliveira Ferreira,

Lal

et al. 2024

Land Degrad Dev

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Land‐use change has driven soil carbon stock losses in ecosystems worldwide. Implementing agricultural crops and exploiting forest resources trigger the breakdown of soil aggregates, thus exposing organic matter to microbial decomposition and enhancing carbon dioxide emissions, especially in biomes more susceptible to climate extremes as in the tropical semiarid regions. This study was based on the hypothesis that the undisturbed soil from the dry forest (Caatinga biome under natural revegetation in Brazilian semiarid) would have an improvement in the mass of macroaggregates and recover more than 50% of the soil C stock within 10 years. Thus, a field experiment was conducted to investigate soils from the Caatinga biome under native vegetation, “cowpea cropping” for over 30 years, and soil under natural revegetation for over 10 years, after conventional soil cultivation of maize and cowpea, to determine soil and soil‐aggregates carbon stocks and to estimate the recovery rate of these stocks. The proportional mass of aggregates of different sizes and the total stock of particulate organic carbon (POC) were also quantified. The results showed that soil under preserved native vegetation of dry forest Caatinga biome had higher total soil C stock (50.9 Mg ha−1) than that under cowpea cropping (23.2 Mg ha−1) and natural revegetation (45.1 Mg ha−1). The proportional mass of large macroaggregates was higher in soil under native vegetation for all depths. However, soil under cowpea cropping had lower C stocks in macroaggregates, and recovered roughly 63% of the original C stocks, while revegetation recovered 78% of the stock in 10 years. Although the conventional management system for cowpea monoculture aggravated losses in soil carbon stock by more than 50% of the original C stocks, dry forest under natural revegetation recovered 79% of this stock and almost 100% of POC stock in 10 years (~12 Mg ha−1). Furthermore, soil under undisturbed Caatinga dry forest achieved C stock levels equivalent to that of the global average range for semiarid tropical environments. The high recovery rate of C stock in forest soil under natural revegetation indicates the resilience potential of organisms responsible for structural protection of aggregates and the encapsulated soil organic matter content.

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Section: Soc and Poc Stocks In Different Sizes Of Aggregatesmentioning

confidence: 99%

Can natural undisturbed revegetation restores soil organic carbon to levels under native climax vegetation under tropical semiarid climate?

Tomaz,

de Oliveira Ferreira,

Lal

et al. 2024

Land Degrad Dev

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“…The increasing use of ethanol and biofuels derived from sugarcane has diversified energy sources and reduced dependence on fossil fuels, thereby mitigating energy security issues [ 17 , 18 ]. These renewable biofuels offer environmental advantages, including lower carbon footprint, which, by partially replacing traditional fuels, helps to reduce greenhouse gas emissions and combat climate change [ 19 ]. Furthermore, the production of ethanol and biofuels from sugarcane creates new economic opportunities, generating additional income and promoting economic development in sugarcane-producing regions [ 20 , 21 ].…”

Section: Characteristics Of Sugarcane Industry Wastewatermentioning

confidence: 99%

Critical State of the Art of Sugarcane Industry Wastewater Treatment Technologies and Perspectives for Sustainability

Nouhou Moussa,

Sawadogo,

Konate

et al. 2023

Membranes

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The worldwide pressure on water resources is aggravated by rapid industrialization, with the food industry, particularly sugar factories, being the foremost contributor. Sugarcane, a primary source of sugar production, requires vast amounts of water, over half of which is discharged as wastewater, often mixed with several byproducts. The discharge of untreated wastewater can have detrimental effects on the environment, making the treatment and reuse of effluents crucial. However, conventional treatment systems may not be adequate for sugarcane industry effluent treatment due to the high organic load and variable chemical and mineral pollution. It is essential to explore pollution-remediating technologies that can achieve a nexus (water, energy, and food) approach and contribute to sustainable development. Based on the extensive literature, membrane technologies such as the membrane bioreactor have shown promising results in treating sugarcane industry wastewater, producing treated water of higher quality, and the possibility of biogas recovery. The byproducts generated from this treatment can also be recovered and used in agriculture for food security. To date, membrane technologies have demonstrated successful results in treating industrial wastewater. This critical review aims to evaluate the performance of traditional and conventional processes in order to propose sustainable perspectives. It also serves to emphasize the need for further research on operating conditions related to membrane bioreactors for valuing sugarcane effluent, to establish it as a sustainable treatment system.

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“…Oxygenated bio-fuels are attracting great interest as suitable blending agents with fossil gasoline and Diesel fuels, generally showing improved engine performances, lower pollutant emissions, and improved fuel efficiency [10]. Nowadays, ethanol, produced by the fermentation of carbohydrate fractions in lignocellulosic biomasses [11], and bio-diesel, obtained from oil crops or through the fermentative route [12,13], represent two of the most investigated second-generation bio-fuels. Also among them, other oxygenated compounds, such as alcohols and esters obtainable from residual lignocellulosic biomasses, appear extremely promising for use in Diesel engines [14].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of 1-Hexanol/Hexyl Hexanoate Mixtures from Grape Pomace and Their Utilization as Bio-Additive in Diesel Engine

Frigo,

Raspolli Galletti,

Fulignati

et al. 2023

Preprint

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The production of oxygenated bio-additives for traditional fuels represents a key challenge due to the depletion of fossil fuels in the next future and their contribution to environmental pollu-tion. In this context, the present study considers the synthesis of different mixtures of 1-hexanol/hexyl hexanoate produced through the catalytic hydrogenation of hexanoic acid, a car-boxylic acid obtainable from the fermentation of a wide variety of waste biomasses. In particu-lar, crude hexanoic acid deriving from the fermentation of grape pomace, an abundant Italian agrifood waste, has been taken into consideration. The reaction was carried out with the com-mercial 5 wt% Re/γ-Al2O3 catalyst, whose acidity allowed the tuning of the reaction selectivity towards the preferential formation of hexyl hexanoate instead of 1-hexanol. As consequence, the tunable composition of the obtained 1-hexanol/hexyl hexanoate mixtures was leveraged for en-gine applications, thus allowing studying each component influence on the Diesel engine per-formances and verifying their synergistic effects. The engine experimental activity highlighted that both 1-hexanol and hexyl hexanoate, as well as their mixtures, can be used in Diesel engine with a commercial Diesel fuel up to high loadings (20 vol%) without altering engine perfor-mances and significantly lowering soot and CO emissions by more than 40%.

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Second-Generation Bio-Fuels: Strategies for Employing Degraded Land for Climate Change Mitigation Meeting United Nation-Sustainable Development Goals

Cited by 6 publications

References 52 publications

Can natural undisturbed revegetation restores soil organic carbon to levels under native climax vegetation under tropical semiarid climate?

Can natural undisturbed revegetation restores soil organic carbon to levels under native climax vegetation under tropical semiarid climate?

Critical State of the Art of Sugarcane Industry Wastewater Treatment Technologies and Perspectives for Sustainability

Synthesis of 1-Hexanol/Hexyl Hexanoate Mixtures from Grape Pomace and Their Utilization as Bio-Additive in Diesel Engine

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