Hydrochar Production by Hydrothermal Carbonization: Microwave versus Supercritical Water Treatment

Biomass, Journal Year: 2024, Volume and Issue: 4(2), P. 574 - 598

Published: June 6, 2024

Hydrochar, a carbonaceous material produced through hydrothermal carbonization of lignocellulosic biomass, has gained significant attention due to its versatile applications in agriculture, energy, and environmental protection. This review extensively explores hydrochar production by carbonization, specifically microwave supercritical water treatment. These innovative approaches hold substantial promises enhancing the efficiency sustainability synthesis. The commences with an in-depth analysis fundamental principles governing production, emphasizing distinct mechanisms Insightful discussions on influence critical process parameters, such as temperature, pressure, residence time, underscore these factors’ pivotal role tailoring characteristics. Drawing wide array research findings, evaluates impact different biomass feedstocks properties, which is crucial for optimizing production. comparative assessment treatment sheds light their unique advantages challenges, guiding researchers toward informed decision-making selection methods. Furthermore, delves into myriad hydrochar, spanning soil amendment, carbon sequestration, renewable energy. Environmental considerations life cycle assessments associated are also explored, providing holistic perspective In conclusion, this comprehensive synthesizes current knowledge from diverse sources, efficacy

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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Synthesis of novel hydrochar from lemongrass distillation waste and its application in individual and simultaneous adsorption of a mixture of heavy metal ions

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 71, P. 107402 - 107402

Published: March 1, 2025

Language: Английский

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Hydrothermal carbonization of plastic waste: A review of its potential in alternative energy applications

Fuel Communications, Journal Year: 2023, Volume and Issue: 18, P. 100103 - 100103

Published: Dec. 17, 2023

The significant rise in plastic consumption and waste generation, coupled with the urgent need for sustainable energy solutions, has led to innovative research seeking convert into valuable resources. This review focuses on application of hydrothermal carbonization as a promising technique transforming products. It highlights suitability conversion, presents recent reports showing results, prospects, range potential hydrochar applications, including solid recovered fuels, catalysts, direct carbon fuel cells supercapacitors. further challenges utilizing across different which include feedstock variability, contamination, scalability, material properties, environmental considerations. optimized synthesis methods, stable performance, long-term sustainability is also emphasized. critical evaluation applications can contribute advancing management renewable production.

Language: Английский

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Hydrochar from Sargassum muticum: a sustainable approach for high-capacity removal of Rhodamine B dye

RSC Sustainability, Journal Year: 2023, Volume and Issue: 1(6), P. 1404 - 1415

Published: Jan. 1, 2023

An invasive macroalga biomass was valorised by hydrothermal carbonization. The resultant carbonaceous materials exhibited efficient adsorption of hazardous organic pollutants in water due to their favourable physicochemical and textural properties.

Language: Английский

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Effects of Fe-modified digestate hydrochar at different hydrothermal temperatures on anaerobic digestion of swine manure

Bioresource Technology, Journal Year: 2024, Volume and Issue: 395, P. 130393 - 130393

Published: Jan. 30, 2024

Language: Английский

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Effect of wood and peanut shell hydrochars on the desiccation cracking characteristics of clayey soils

Chemosphere, Journal Year: 2024, Volume and Issue: 358, P. 142134 - 142134

Published: April 25, 2024

Language: Английский

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Hydrothermal carbonization and pyrolysis in wetland engineering: Carbon sequestration, phosphorus recovery, and structural characterization of willow-based chars with X-ray μ-computed tomography

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 151916 - 151916

Published: May 6, 2024

Willows from engineered wetland systems (EWS) offer a sustainable approach to wastewater treatment and biomass production. Our study assesses their potential for nutrient recovery carbon sequestration using slow pyrolysis (600 °C) hydrothermal carbonization (250 °C). Here, we propose EWS-pyrochars as ready-tointegrate opportunity soil amendment, they exhibit predominant CO2 release the absence of harmful compounds in pyrolysis-chromatograms, indicating higher stability than hydrocars. Using sequential P-extractions, observed high Pbioavailability willow-woodchips significant P-retention EWS-chars—up 92 % pyrochars near-complete retention hydrochars, along with labile-P fraction 21 hydrochars 5 pyrochars. Utilizing X-ray-based techniques, Raman spectroscopy, scanning electron microscopy, gas physisorption, characterized EWS-chars' structures. We revealed innovative 3D-visualization, which transcends previous literature by providing insights into chars' internal porosity quantifying, first time, carbonaceous structural thickness via meshing algorithm mean Feret diameter. remarkable aromaticity concentration overall sp2 C-atoms at 63 vs. 43 Moreover, unlike hydrochar, depicts occluded porosity, exhibited water storage-like pores. Although indicated lower thermal pyrochars, (54 41 pyrochar) suggest superior annual benefits—on 10 ha EWS scale—of 80-tons 334 kg phosphorus versus 60-tons 298 findings materials resource recovery, moving field forward, shifting traditional use, opening future integration biorefineries.

Language: Английский

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Effect of the aqueous phase from the hydrothermal carbonization of sewage sludge as a moisture regulator on nitrogen retention and humification during chicken manure composting

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 470, P. 144398 - 144398

Published: June 25, 2023

Language: Английский

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Sustainable wastewater purification with crab shell-derived biochar: Advanced machine learning modeling & experimental analysis

Bioresource Technology, Journal Year: 2023, Volume and Issue: 390, P. 129900 - 129900

Published: Oct. 21, 2023

Language: Английский

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