The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 955, P. 177209 - 177209
Published: Nov. 2, 2024
Language: Английский
Biomass Conversion and Biorefinery, Journal Year: 2023, Volume and Issue: 13(18), P. 16479 - 16493
Published: March 13, 2023
Abstract The thermochemical treatments of biowaste yield alternative renewable carbon-rich materials, while achieving waste valorization. These technologies allow to reduce amount and enhance its life span avoiding the landfill disposal. agronomic application as a soil amendment strategy using fresh hydrochar (obtained via hydrothermal treatment garden park (GPW) at 180 °C for 1 h), post-treated (washed, aged, thermally treated), biochar pyrolysis GPW 900 90 min) has been studied compared in order stablish best approach We evaluated effects mixing (1–5% on dry weight) with different peat-based growth substrates seed germination index well weights Arabidopsis thaliana , Chenopodium quinoa Solanum lycopersicum (tomato). also performed assay marginal agricultural mixed chars same doses. All carbonaceous materials complied European legal framework being categorized class A present favorable chemical composition their use, carbon sources low heavy-metal content, high mineral organic matter content. Application improved tomato seeds (by 10–20%) dosages (< 3% when washed treated was used. However, negatively affected plant applied media, particularly sandy substrates. Washing approximately 18%), reduced 90% total volatile fatty acid effectively removed furans, amines, amides, pyridines, pyrazines, benzoic compounds, acids that can affect growth. Because use soils purposes requires post-treatment alleviate inhibition, washing is most suitable option considering energy technological requirements.
Language: Английский
Citations
31
Environmental Research, Journal Year: 2023, Volume and Issue: 250, P. 117923 - 117923
Published: Dec. 16, 2023
Language: Английский
Citations
31
The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 871, P. 162138 - 162138
Published: Feb. 10, 2023
Hydrochar is a new carbonaceous product obtained via hydrothermal carbonization of wet biomass, such as sludges or digested sludges, which often have disposal problems, also due to the presence contaminants heavy metals. The properties hydrochar led an interest in using it amendment, but agro-environmental must be considered for its safe use. Raw produced by agro-industrial digestate and relative three acidic post-treated hydrochars (for metals removal) been assessed considering their effect on phytotoxicity, soil, plant growth, mutagenicity, genotoxicity. chemical characterization showed post-treatment contents reduction, except Cu content (hydrochar, 650 mg/kg; hydrochars, 940 mg/kg, 287 420 mg/kg). reduces phytotoxicity compared raw (the germination index at 16 % concentration was: hydrochar, 61.48 %; 82.27 %, 58.28 82.26 %), low pH impact N-cycle probably caused detrimental growth hydrochar. No mutagenic activity was observed bacteria Ames test, while all samples induced chromosomal aberrations cells (Allium cepa test). approach adopted, considers growth-soil effects, mutagenicity/genotoxicity bioassays has proven effective proper evaluation organic products derived from waste promote sustainable circular recovery materials.
Language: Английский
Citations
23
Agronomy, Journal Year: 2024, Volume and Issue: 14(5), P. 955 - 955
Published: May 2, 2024
Hydrothermal carbonization (HTC) has emerged as a pivotal technology in the battle against climate change and fosters circular economies. Operating within unique reaction environment characterized by water solvent moderate temperatures at self-generated pressures, HTC efficiently converts biomass residues into valuable bio-based products. Despite HTC’s potential—from management of challenging wastes to synthesis advanced carbons implementation biorefineries—it encounters hurdles transitioning from academic exploration industrial implementation. Gaps persist, general comprehension intricacies difficulty large-scale integration with wastewater treatments, process water, absence standardized assessment techniques for Addressing these challenges demands collaboration bridge many scientific sectors touched HTC. Thus, this article reviews current state some hot topics considered crucial development: It emphasizes role cornerstone waste biorefineries, highlighting potentialities its development. In particular, it surveys fundamental research aspects, delving pathways, predictive models, analytical techniques, modifications while exploring technological applications challenges, peculiar focus on combined HTC, integration, plant energy efficiency.
Language: Английский
Citations
12
Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 365, P. 121637 - 121637
Published: July 4, 2024
The pH of sewage sludge is a crucial factor during the hydrothermal carbonization process that influences characteristics resulting products and migration certain compounds from solid to liquid phase. Accordingly, this work focused on examining impact HTC process, in particular, equals 2, 3, 4, 5 6 individual hydrothermally carbonized generated at 200 °C 2 h residence time. For reason, chemical physical indicators describing post-processing hydrochar were determined. instance, it was observed phosphorus content detected liquid, derived pH2, rose significantly by 80%. Furthermore, decreasing had significant ash calorific value hydrochar. Additionally, changes specific surface area noticed: = showed an increase 20–30%, while for lower values decrease c.a. 26% achieved. distribution heavy metals between obtained fractions (solid liquid) indicated 92 almost 100% tested transferred A effect these only Zn Ni. Ni 34% 29%, respectively. In addition, sequential extraction also performed order identify mobile non-mobile phases. It noticed acidic environment favours higher amount largest Cd, Pb, Cr Cu, which, their respective amounts fraction 2.7; 3.6; 1.8; 6.2 times higher, compared without correction.
Language: Английский
Citations
12
Agronomy, Journal Year: 2024, Volume and Issue: 14(2), P. 247 - 247
Published: Jan. 24, 2024
Hydrothermal carbonization (HTC) is a proven cost-effective and energy-efficient method for waste management value-added product recovery. There are, however, several issues that require further improvement or research. Identifying the strengths weaknesses of HTC in comparison to traditional pyrolysis crucial scientists choose between them use both (complementary) achieve specific properties. Additionally, sharing information on diverse modeling approaches scales enhance robustness universality process models. In addition, study applicability hydrochars target applications such as soil amendment give back nutrients soils face dependence finite feedstocks this field. Also, proper by-products, especially water, must be addressed improve carbon hydric footprint process. Reviewing suitability treat challenging wastes, whose strength not related their calorific value but nutrient composition (i.e., manures), also an appealing topic This paper aims tackle above-mentioned through updated review discussion research gaps investigation.
Language: Английский
Citations
11
Chemosphere, Journal Year: 2024, Volume and Issue: 361, P. 142419 - 142419
Published: May 22, 2024
In light of the substantial global production biomass waste, effective waste management and energy recovery solutions are paramount importance. Hydrothermal liquefaction (HTL) anaerobic digestion (AD) have emerged as innovative techniques for converting into valuable resources. Their integration creates a synergistic framework that mitigates inherent limitations, leading to improved efficiency, enhanced product quality, comprehensive utilization biomass. This review paper investigates HTL AD, highlighting its significance potential benefits well optimal sequencing (HTL followed by AD HTL). The encompasses experimental procedures, factors influencing both options, characterizations, final outcomes, toxicological assessments discussions on reduction. Additionally, it delves transition towards circular bioeconomy discusses challenges opportunities intrinsic these processes. findings presented in this offer insights shape future research evolving field.
Language: Английский
Citations
11
Bioresource Technology, Journal Year: 2023, Volume and Issue: 388, P. 129724 - 129724
Published: Sept. 6, 2023
Several limitations hinder the industrial-scale implementation of hydrothermal carbonization (HTC) biomass, especially quality as-carbonized hydrochar. This work investigates solvent extraction hydrochars to enhance their potential applications. Hydrochars were produced at several HTC temperatures (190, 220, 250 °C) from cellulose and extracted using combinations green polar solvents (ethyl acetate, acetone, methanol). Results show that composition extractable fraction resembles liquor, rich in carboxylic acids furan derivatives, while non-extractable solid phase shows improved thermal profiles devoid highly volatile compounds. Carbon microspheres (non-dissolvable secondary char) are unaffected by extraction. The organics adsorbed on hydrochar surface comprise species washing effectively removes them.
Language: Английский
Citations
21
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153710 - 153710
Published: July 3, 2024
Language: Английский
Citations
7
Waste Management, Journal Year: 2024, Volume and Issue: 190, P. 174 - 185
Published: Sept. 25, 2024
Language: Английский
Citations
6