Published: Jan. 1, 2024
Language: Английский
Horticulturae, Journal Year: 2023, Volume and Issue: 9(5), P. 545 - 545
Published: April 30, 2023
Hydrochar derived from hydrothermal carbonization (HTC) has been recognized as a potential absorbent and horticultural substrate. However, its practical application limited due to low adsorption capacity negative effects on plant growth. To address these issues, three pre-treatment methods (water washing, microbial aging, freezing-thawing aging) were employed further improve the physical structure chemical properties of hydrochar. A seed germination test with kale (Brassica oleracea var. acephala D.C) was conducted evaluate phytotoxicity modified hydrochars. The results showed that aging considerably enhanced physicochemical Specifically, under bulk density microbial-aged hydrochar (MHC) decreased by 8.1%, porosity increased 24.8%, water-holding 36.54% compared fresh (FHC). Moreover, surfaces MHC aged (FTHC) observed rough cracked macro pore structures. Fourier transform infrared (FTIR) spectroscopy revealed functional group’s intensities four materials varied, FTHC had more oxygen-containing groups than others. Additionally, surface areas 318.64% 238.98% FHC, respectively. indicated strong inhibitory effect while significantly (p < 0.05) improved rate root development. These findings suggest among different methods, demonstrated greatest for in improving promoting germination. This study opens up new avenues research suggests future studies should focus optimizing process.
Language: Английский
Citations
12
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
Citations
0
Biochar, Journal Year: 2025, Volume and Issue: 7(1)
Published: March 10, 2025
Abstract Biochar has high potential for long-term atmospheric carbon storage in terrestrial environments, contributing to meeting the UK and global greenhouse gas emission reduction targets. This study investigates emissions techno-economics associated with biochar produced from food waste anaerobic digestate using hydrothermal carbonisation followed by high-temperature post carbonisation. Owing moisture contents, digestates are challenging valorise. However, these low-value feedstocks have steady availability minimal competition other applications. The focuses on supply, production, agricultural field application, transportation activities. Minimising transport through co-locating production facilities digestion displayed mitigation costs of < £100 tCO 2 eq −1 (125 USD ). 88% stable fraction biochar, which is resistant degradation soil, primarily responsible effective removal gases. results net reductions 1.15–1.20 per tonne predominantly due durable (1.7 biochar). Using 50% UK’s projected available 2030 offers a sequester 93 ktCO p.a., requiring 28 at 20 kt p.a. capacity. Sensitivity analysis emphasises influence gate fee charged process digestate, highlighting its importance economic success production. Further studies needed investigate technology enhancements reduce fossil-fuel use provide greater certainty co-benefits application soil. Graphical
Language: Английский
Citations
0
Water, Journal Year: 2025, Volume and Issue: 17(6), P. 800 - 800
Published: March 11, 2025
This study presents a novel approach that integrates hydrothermal carbonization (HTC) technology with circular economy principles to optimize the management of nitrogen and phosphorus in agricultural wastewater. Given increasing global resource scarcity continuous ecological degradation, valorization biomass wastewater has become critical pathway for promotion sustainable development. Biomass wastewater, which contains crop residues, forestry leftovers, food processing byproducts, long been regarded as useless waste. However, this abundant organic matter possesses significant renewable energy potential. The can significantly reduce environmental pollution. Through optimization HTC process parameters, we achieved an improvement quality yield carbonized products, facilitating efficient recycling utilization resources. research demonstrates transform into valuable biofertilizers, energy, feed, while simultaneously reducing reliance on fossil fuels, decreasing greenhouse gas emissions, mitigating impact activities. paper provides comprehensive exploration application ecosystems, highlighting its beneficial role management, efficiency, pollution reduction. findings suggest holds potential optimizing treatment, promoting recycling, advancing Furthermore, offers theoretical support practical guidance implementation is paramount importance fostering economic development achieving agriculture.
Language: Английский
Citations
0
Current Opinion in Green and Sustainable Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 101024 - 101024
Published: March 1, 2025
Language: Английский
Citations
0
Waste Management, Journal Year: 2024, Volume and Issue: 180, P. 1 - 8
Published: March 16, 2024
The feasibility of anaerobic co-digestion in semicontinuous mode two major urban biowaste, food waste (FW) and garden park (GPW) (75 % FW 25 GPW) as well the with process water originated from hydrothermal carbonization GPW (95 5 water), both on a COD basis, has been assessed. effect varying organic loading rate (OLR) 1.5 to 3.5 g COD/L·d methane yield, gross energy recovery, microbiome population was evaluated. For comparison, digestion also conducted determine best strategy for sustainable biowaste management. This study showed an optimal OLR 2.5 COD/L·d. Acetic propionic acid content increased raised each condition studied, while yield decreased at highest tested indicating overloading system. 10 increase production compared (324 vs. 294 mL CH4 STP/L·d). Moreover, it enhances due greater abundance diversity hydrolytic acidogenic bacteria belonging Bacterioidota, Firmicutes, Chloroflexi phyla, promotes hydrogenotrophic pathway under higher concentrations which is not usually favoured production. integration 95 results potential recovery could be good management biowaste.
Language: Английский
Citations
3
Biomass and Bioenergy, Journal Year: 2024, Volume and Issue: 187, P. 107299 - 107299
Published: July 5, 2024
Circular approaches to revalorise waste biomass from agriculture and food production sectors are crucial for developing a sustainable bioenergy strategy. For instance, while the demand edible mushroom cultivation has increased globally, generates substantial amount of biomass, known as Spent Mushroom Substrate (MS). Thermochemical conversion technologies such hydrothermal carbonisation offers robust strategy produce "hydrochar" wet can be used downstream various environmental applications. In this study, we assess feasibility MS-derived hydrochar energy application, specifically blend with coal. The key parameters temperature, time moisture content were optimised (205 °C, 3.65 h, 73.18 %, respectively) using statistical tool "Response Surface Methodology (RSM)" obtain carbon material higher yield calorific value. MS exhibited an acidic pH (4.42), fixed (23.7 %), reduced sulphur (0.26 coarser porous surface, enhanced oxygenated functional groups (hydroxyl, carboxyl ketonic) formation minerals like Sodium Carbonate (NaCO3), whewellite (CaC2O4·H2O) gypsum (CaSO4). Combustion behaviour was also assessed calorimetry thermogravimetry, test different coal blends on supplement conventional solid fuels. Our results suggest that 20 % 80 ideal blending ratio (with value 27.65 MJ kg−1) highlighting use fuel
Language: Английский
Citations
3
Agronomy, Journal Year: 2023, Volume and Issue: 14(1), P. 40 - 40
Published: Dec. 22, 2023
In response to the challenge of resource recycling, this review investigates removal phytotoxicity from agricultural waste for its application as a growing media component. Agricultural typically exhibits high due presence substances such phenols, organic acids, ammonia, nitrogen, and heavy metals. These hinder seed germination plant growth, posing significant barrier use Thus, it is imperative mitigate or eliminate before effectively utilizing waste. This rigorously analyzes an extensive array recent studies, scrutinizing diverse technologies mitigation in wastes. The methods investigated include four most common methods—composting, heat treatment, washing, aging, recently introduced method, ammonium incubation. Each method was assessed considering underlying principles, effects application, respective advantages disadvantages. suggests that successful hinges on reducing content activity phytotoxic substances. Moreover, study emphasizes future efforts should aim economic efficiency while maximizing preservation original material volume weight. offers insightful guidance technical professionals aiming waste, thereby fostering sustainable practices.
Language: Английский
Citations
8
Environmental Research, Journal Year: 2023, Volume and Issue: 245, P. 118062 - 118062
Published: Dec. 27, 2023
Hydrothermal carbonization (HTC) is considered a promising technology for biomass waste management without pre-drying. This study explores the potential swine manure by comparing batch and continuous processes, emphasizing benefits of mode, particularly its full-scale application. The process at low temperature (180 °C) resulted in hydrochar with lower degree compared to process, but similar characteristics were found both hydrochars higher operating temperatures (230-250 °C), such as C content (∼ 52 wt%), fixed carbon 24 wt%) calorific value (21 MJ kg
Language: Английский
Citations
7
International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 89, P. 1383 - 1393
Published: Oct. 4, 2024
Language: Английский
Citations
2