Agricultural application of ammonium-enriched hydrochars: Cultivation practices to improve quality and yield of Matricaria recutita L.

Industrial Crops and Products, Journal Year: 2025, Volume and Issue: 225, P. 120436 - 120436

Published: Jan. 10, 2025

Language: Английский

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Hydrothermal carbonization: Sustainable pathways for waste‐to‐energy conversion and biocoal production

GCB Bioenergy, Journal Year: 2024, Volume and Issue: 16(6)

Published: May 15, 2024

Abstract Hydrothermal carbonization (HTC) technology emerges as a sustainable method to convert wet biomass, including food waste and municipal solid into high‐energy dense biocoal. This process, conducted at temperatures ranging from 180 260°C pressures of 10–50 bar, effectively transforms the organic material in biomass solid, liquid, gaseous outputs. The product, biocoal, possesses high carbon concentration heating values on par with lignite coal, presenting cleaner alternative traditional fossil fuels. Despite operational commercial‐scale HTC facilities globally, further adoption across various feedstocks can improve management energy production. process achieve yields up 80%, particularly favoring generation secondary char higher values. not only aids reducing greenhouse gas emissions through sequestration but also promotes environmental sustainability by yielding nutrient‐rich by‐products for agriculture. As versatile energy‐efficient solution, is pivotal innovation waste‐to‐energy conversion, addressing imperative management. Other supplementary benefits are presented; they include employability, reduction nation's reliance imported energy, better control, therefore considering all pillars sustainability. Future research should focus optimizing efficiency exploring broader applicability feedstocks, enhancing its role global pursuit solutions.

Language: Английский

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Anaerobic digestate influences the carbon distribution in soil organic matter pools after six months from its application

Soil and Tillage Research, Journal Year: 2024, Volume and Issue: 239, P. 106049 - 106049

Published: Feb. 16, 2024

The decline of soil organic matter (SOM) and micro macronutrients is among the most serious threats that many agricultural soils in world are facing. In countries, amendments from a wide range wastes increasingly used as win-win strategy to mitigate global warming while enhancing fertility and, turn, food security. Digestate, by-product anaerobic digestion, often fertilizer an amendment. However, in-depth understanding its impacts on native SOM carbon (OC) stabilization mechanisms still needed. aim this work was investigate influence solid vs. liquid digestates both accrual distribution particulate (POM) mineral-associated (MAOM) pools, after 0, 3 6 months their application. None had significant effects OC total nitrogen concentrations stocks. months, clear difference between pools observed function digestate phase applied soil. particular, MAOM POM ratio decreased amended with respect unamended control soil, did not differ following Thermal analysis suggested interaction mineral surfaces, rather than biochemical recalcitrance, major mechanism soils. This study highlighted more evaluation through application, especially short term, can be achieved by investigating functionally defined fractions bulk SOM.

Language: Английский

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Kinetic and Thermodynamic Evidence of the Paal–Knorr and Debus–Radziszewski Reactions Underlying Formation of Pyrroles and Imidazoles in Hydrothermal Liquefaction of Glucose–Glycine Mixtures

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(4), P. 3343 - 3356

Published: Feb. 3, 2024

We evaluated Paal–Knorr and Debus–Radziszewski reactions as the mechanisms underlying formation of pyrroles imidazoles, respectively, in hydrothermal liquefaction (HTL) via semicontinuous HTL experiments on a glucose–glycine mixture. developed cheminformatic-based reaction pathways for range feedstock pH (2–12), temperatures (280–370 °C), times (2–60 min). The were validated using transient concentration reacting compounds assessed reversible power-law kinetics, Arrhenius equation, Maxwell relation Gibbs free energy. assessment informed exothermicity both proposed their activation under acidic conditions with (1) succinaldehyde amino acid/ammonia (2) α-dicarbonyls, formaldehyde, precursors, respectively. Endothermic amidation exothermic decarboxylation followed reactions, producing amide- alkyl-substituted imidazoles biocrude an aqueous-phase coproduct. Moreover, C–C coupling series Wittig olefination Hoesch involving dicarboxylic acid imidazole, fumaronitrile, ylide precipitated polypyrrole azepine- azocine-embedded imidazole hydrochar. Meanwhile, neutral alkaline feedstocks presented transition from alkali-catalyzed (e.g., endothermic Maillard between pyruvaldehyde pyrazines oxazoles) to acid-catalyzed reaction) at longer than 10 min due significant acetic decomposition carbohydrate protein monomers. This study proved that mechanism N-heterocycles varied pH.

Language: Английский

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Enhanced energy and nutrient recovery via hydrothermal carbonisation of sewage sludge: Effect of process parameters

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 906, P. 167828 - 167828

Published: Oct. 13, 2023

Language: Английский

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Life Cycle Assessment of Hydrothermal Carbonization: A Review of Product Valorization Pathways

Agronomy, Journal Year: 2024, Volume and Issue: 14(2), P. 243 - 243

Published: Jan. 24, 2024

Hydrothermal carbonization (HTC) has the potential to be a sustainable and environmentally beneficial approach for organic waste treatment. It is likely that HTC product use will dictate viability of large-scale facilities; therefore, understanding environmental implications associated with valorization pathways critical. The overall goal this review gain an how currently being modeled in life cycle assessment studies, such information assess current research and/or data needs valorization. To accomplish this, existing literature was conducted used state knowledge surrounding use. From literature, it clear exists realize full-scale application, gaps were identified included system-level integration evaluate location-specific as well more extensive characterization impact properties on impacts.

Language: Английский

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Enhancing sustainable waste management: Hydrothermal carbonization of polyethylene terephthalate and polystyrene plastics for energy recovery

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 946, P. 174110 - 174110

Published: June 21, 2024

Language: Английский

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Hydrothermal Carbonization of Coking Sludge: Migration Behavior of Heavy Metals and Magnetic Separation Performance of Hydrochar

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 114141 - 114141

Published: Sept. 15, 2024

Language: Английский

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Effects of Hydrothermal Carbonization Conditions on the Characteristics of Hydrochar and Its Application as a Soil Amendment: A Review

Agronomy, Journal Year: 2025, Volume and Issue: 15(2), P. 327 - 327

Published: Jan. 27, 2025

Hydrochar (HC) has received increasing attention due to its potential impact on soil amendment. The process parameters of hydrothermal carbonization (HTC) have a significant the characterization HC, and HC as amendment effects properties. Therefore, this work summarizes feedstock type, temperature, residence time, solid–liquid ratio characteristics analyzes by addition. type determined HC. Temperature had greatest effect properties, while time similar but smaller than temperature had. did not affect when HTC was carried out certain extent. Solid–liquid research in area is lacking. Moisture crucial factor plant growth. Compared other soils, significantly increased water-holding capacity (WHC) sandy soils. rich nutrients micronutrients, making it potentially useful fertilizer. toxicity may inhibit growth be ignored for poor soil. This review aims provide recommendations identify areas where further needed.

Language: Английский

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Effects of Hydrochar Incorporation on the Nitrogen Leaching Flux Pattern and Load in Rice Paddy Soil and Crop Production

Plants, Journal Year: 2025, Volume and Issue: 14(3), P. 455 - 455

Published: Feb. 4, 2025

Hydrochar (HC) incorporation affects soil nitrogen (N) transformation, which could further affect the N leaching loss. We conducted a lysimeter experiment to evaluate responses in terms of and rice yield HC applied at low (0.5%) or high (1.5%) rate, while considering three inputs, i.e., 240, 192, 144 kg/ha (named N240, N192, N144, respectively). The results showed that grain was highest (124.3 g/pot) for being significantly reduced minimum achieved study (110.3 N144. Interestingly, input kg/ha, application increased by 6.9–8.0%, equivalent N240. NH4+-N occurred mainly during first 4 weeks season, did not influence both 192 240 kg/ha. However, compared N144 + HC1.5% recorded higher loss 34.6%. This suggests amount increases risk when is low. resulted 10.2–45.3% more NO3−-N inputs were applied, effect significant regard applications involving 20 40% reduction, but this only with treatments 1.5% HC. Moreover, we found organic main form leachate (>80%). More specifically, 7.8–8.3% lower than N192. Based on effects leaching, recommend reduction (N144) (HC 0.5%) ensure crop production protect water environment.

Language: Английский

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