Log in

Relevant bibliographies by topics / Hydrocharia / Journal articles

To see the other types of publications on this topic, follow the link: Hydrocharia.

Journal articles on the topic 'Hydrocharia'

Author: Grafiati

Published: 28 July 2024

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Hydrocharia.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Sivaranjanee, R., and P. Senthil Kumar. "Enhanced Adsorption of Rose Bengal Dye from Aqueous Solution Using NaOH Activated Hydrochar Derived from Corncob Waste." Adsorption Science & Technology 2023 (November 8, 2023): 1–19. http://dx.doi.org/10.1155/2023/6695350.

Full text

Abstract:

A potential approach to the preparation of affordable activated hydrochar is the hydrothermal carbonization of biomass wastes. In this study, hydrochar was made by hydrothermally carbonizing corncob wastes and then activating them with sodium hydroxide (NaOH). According to the findings, the adsorption capabilities of hydrochar generated at prolonged retention durations, lesser liquid-to-solid ratios, and elevated temperatures were considerably greater. The hydrochars were then analyzed utilizing a variety of characterization methods, and batch tests involving the sorption of rose bengal dye we

APA, Harvard, Vancouver, ISO, and other styles

2

Islam, Md Tahmid, Al Ibtida Sultana, Cadianne Chambers, et al. "Recent Progress on Emerging Applications of Hydrochar." Energies 15, no. 24 (2022): 9340. http://dx.doi.org/10.3390/en15249340.

Full text

Abstract:

Hydrothermal carbonization (HTC) is a prominent thermochemical technology that can convert high-moisture waste into a valuable product (called hydrochar) at a relatively mild treatment condition (180–260 °C and 2–10 MPa). With rapidly growing research on HTC and hydrochar in recent years, review articles addressing the current and future direction of this research are scarce. Hence, this article aims to review various emerging applications of hydrochars, e.g., from solid fuel to soil amendment, from electron storage to hydrogen storage, from dye adsorption, toxin adsorption, heavy metal adsorp

APA, Harvard, Vancouver, ISO, and other styles

3

Saha, Nepu, Maurizio Volpe, Luca Fiori, Roberto Volpe, Antonio Messineo, and M. Toufiq Reza. "Cationic Dye Adsorption on Hydrochars of Winery and Citrus Juice Industries Residues: Performance, Mechanism, and Thermodynamics." Energies 13, no. 18 (2020): 4686. http://dx.doi.org/10.3390/en13184686.

Full text

Abstract:

With the increasing needs of clean water supplies, the use of biomass wastes and residues for environmental remediation is essential for environmental sustainability. In this study, the residues from winery and citrus juice industries, namely grape skin and orange peel, respectively, were first converted to hydrochars by hydrothermal carbonization (HTC) and then a cationic dye (methylene blue) adsorption was studied on hydrochars. Hydrochars from both feedstocks were produced at three different temperatures (180, 220, and 250 °C) and a fixed residence time (1 h) to evaluate the hydrochar’s per

APA, Harvard, Vancouver, ISO, and other styles

4

Thawornchaisit, Usarat, Tanrawee Onlamai, Nontakorn Phurkphong, and Rawiwan Sukharom. "Sugarcane Bagasse-derived Hydrochar: Modification with Cations to Enhance Phosphate Removal." Environment and Natural Resources Journal 19, no. 5 (2021): 1–10. http://dx.doi.org/10.32526/ennrj/19/202100036.

Full text

Abstract:

Cation modified hydrochars were synthesized by hydrothermal carbonization (HTC) of sugarcane bagasse, followed by impregnation of three different cations (Ca, Mg, and Fe) or co-precipitation of Fe3+ and Fe2+. HTC enhanced the hydrochar surface area and increased the enrichment of oxygen functional groups on the hydrochar surface confirmed by FTIR. The oxygen functional groups further improve the adsorption capacity for cations during hydrochar chemical modification. Physical appearance, FTIR and XRF confirmed that Ca2+, Mg2+ and Fe2+ or Fe3+ were well retained in the bagasse-derived hydrochar.

APA, Harvard, Vancouver, ISO, and other styles

5

Tran, Lien Thi, Minh Quang Nguyen, Ha Trong Hoang, Hoang Tien Nguyen, and Thu Ha Thi Vu. "Catalytic Hydrothermal Carbonization of Avocado Peel." Journal of Chemistry 2022 (October 7, 2022): 1–10. http://dx.doi.org/10.1155/2022/5766269.

Full text

Abstract:

The hydrothermal carbonization (HTC) of avocado peel was investigated by varying the reaction temperature, reaction time, and catalyst/feedstock ratio. After the HTC process, there was a drastic change in both the structure and chemical composition of the hydrochar compared to the feedstock. This modification aids hydrochar’s improved fuel characteristics, as seen by a drop in the H/C and O/C ratios, as well as an increase in fixed carbon content. The higher heating value (HHV) increased in the feedstock to a maximum value of 27.15 MJ·kg−1, corresponding to hydrochar, which is obtained at an o

APA, Harvard, Vancouver, ISO, and other styles

6

Wutthipattarathorn, Kamyaporn, Usarat Thawornchaisit, and Suwannee Janyapoon. "Enhanced Removal of Phosphorus from Aqueous Solutions by Cation-Modified Hydrochar." Trends in Sciences 20, no. 10 (2023): 5808. http://dx.doi.org/10.48048/tis.2023.5808.

Full text

Abstract:

In this study, cassava stem-derived hydrochar was modified with sodium hydroxide (NaOH) treatment, followed by loading of minerals, was used to prepare cation-modified hydrochars with enhanced phosphate removal ability. Cassava stems were converted to hydrochar by hydrothermal carbonization at 240 °C for 60 min, then it was soaked in 2 M NaOH for 3 h. The NaOH-treated hydrochars were then loaded with iron (Fe), magnesium (Mg) and calcium (Ca). The cassava stems and the derived hydrochars were analyzed for carbon, hydrogen, nitrogen and oxygen content, surface morphology and elemental compositi

APA, Harvard, Vancouver, ISO, and other styles

7

Dikbasan, Buğra, and Sami Dursun. "The Production of Hydrochar from Hazelnut Waste and its Use in the Removal of Pb (II) and Cr (III)." Düzce Üniversitesi Bilim ve Teknoloji Dergisi 13, no. 1 (2025): 573–87. https://doi.org/10.29130/dubited.1584464.

Full text

Abstract:

Heavy metals (HMs) are causing an increasing amount of harm to the environment and living organisms. A variety of studies is being conducted to eliminate or diminish such pollutants. In this study, hydrochar was produced from hazelnut waste (HW), and Pb and Cr ion removal research was conducted with this adsorbent. In this way, both the evaluation of HW was provided and the removal of HMs, which are very harmful for the environment. The structural and morphological properties of the produced hydrochars were characterized by thermogravimetric analysis (TGA), differential scanning calorimetry (D

APA, Harvard, Vancouver, ISO, and other styles

8

Ferrentino, Roberta, Riccardo Ceccato, Valentina Marchetti, Gianni Andreottola, and Luca Fiori. "Sewage Sludge Hydrochar: An Option for Removal of Methylene Blue from Wastewater." Applied Sciences 10, no. 10 (2020): 3445. http://dx.doi.org/10.3390/app10103445.

Full text

Abstract:

Municipal sewage sludge was subjected to a hydrothermal carbonization (HTC) process for developing a hydrochar with high adsorption capacity for water remediation in terms of dye removal. Three hydrochars were produced from municipal sewage sludge by performing HTC at 190, 220 and 250 °C, with a 3 h reaction time. Moreover, a portion of each hydrochar was subjected to a post-treatment with KOH in order to increase the adsorption capacity. Physicochemical properties of sludge samples, raw hydrochars and KOH-modified hydrochars were measured and batch adsorption studies were performed using meth

APA, Harvard, Vancouver, ISO, and other styles

9

Fregolente, Laís G., João Vitor dos Santos, Giovanni Vinci, et al. "Insights on Molecular Characteristics of Hydrochars by 13C-NMR and Off-Line TMAH-GC/MS and Assessment of Their Potential Use as Plant Growth Promoters." Molecules 26, no. 4 (2021): 1026. http://dx.doi.org/10.3390/molecules26041026.

Full text

Abstract:

Hydrochar is a carbon-based material that can be used as soil amendment. Since the physical-chemical properties of hydrochar are mainly assigned to process parameters, we aimed at evaluating the organic fraction of different hydrochars through 13C-NMR and off-line TMAH-GC/MS. Four hydrochars produced with sugarcane bagasse, vinasse and sulfuric or phosphoric acids were analyzed to elucidate the main molecular features. Germination and initial growth of maize seedlings were assessed using hydrochar water-soluble fraction to evaluate their potential use as growth promoters. The hydrochars prepar

APA, Harvard, Vancouver, ISO, and other styles

10

Jamaludin, S. I. S., M. A. A. Zaini, A. N. Sadikin, and W. N. F. A. Jani. "Transforming cotton textile waste into high performance hydrochars for efficient water pollutants removal." IOP Conference Series: Earth and Environmental Science 1505, no. 1 (2025): 012010. https://doi.org/10.1088/1755-1315/1505/1/012010.

Full text

Abstract:

Abstract This study was aimed at evaluating the performance of adsorbents derived from cotton textile waste (CTW) for the removal methylene blue (MB) and ciprofloxacin (CFX). For this purpose, hydrochar material was synthesized through low-temperature hydrothermal carbonization (HTC) of CTW at 220 °C. The effect of acid catalysts on the hydrochar characteristics was elucidated. The yield, elemental composition, surface functional groups, and surface morphology were analyzed. The CTW hydrochars were applied to remove model pollutants at different concentrations. The research elucidated that the

APA, Harvard, Vancouver, ISO, and other styles

11

Kamalanathan, Subodhan, Fadina Amran, and Muhammad Abbas Ahmad Zaini. "Oxidized Mangosteen Peel-Derived Hydrochar for the Removal of Methylene Blue." Hungarian Journal of Industry and Chemistry 53, no. 1 (2025): 1–7. https://doi.org/10.33927/hjic-2025-01.

Full text

Abstract:

This work aimed to evaluate the performance of hydrochar and oxidized hydrochars for the removal of methylene blue. Hydrochar was prepared from mangosteen peel, while ammonium persulfate ((NH4)2S2O8), sulfuric acid (H2SO4) and nitric acid (HNO3) were used to oxidize the surface of hydrochars. The performance of pristine hydrochar is better compared to its oxidized counterparts, with a maximum adsorption capacity of 110 mg/g. The adsorption data are well described by Langmuir and pseudo-kinetic models, while the thermodynamic parameters indicate that the process is endothermic and spontaneous.

APA, Harvard, Vancouver, ISO, and other styles

12

Delahaye, Louise, John Thomas Hobson, Matthew Peter Rando, et al. "Experimental and Computational Evaluation of Heavy Metal Cation Adsorption for Molecular Design of Hydrothermal Char." Energies 13, no. 16 (2020): 4203. http://dx.doi.org/10.3390/en13164203.

Full text

Abstract:

A model hydrochar was synthesized from glucose at 180 °C and its Cu(II) sorption capacity was studied experimentally and computationally as an example of molecular-level adsorbent design. The sorption capacity of the glucose hydrochar was less than detection limits (3 mg g−1) and increased significantly with simple alkali treatments with hydroxide and carbonate salts of K and Na. Sorption capacity depended on the salt used for alkali treatment, with hydroxides leading to greater improvement than carbonates and K+ more than Na+. Subsequent zeta potential and infrared spectroscopy analysis impli

APA, Harvard, Vancouver, ISO, and other styles

13

Faradilla, RH Fitri, Lucian Lucia, and Marko Hakovirta. "Remarkable Physical and Thermal Properties of Hydrothermal Carbonized Nanoscale Cellulose Observed from Citric Acid Catalysis and Acetone Rinsing." Nanomaterials 10, no. 6 (2020): 1049. http://dx.doi.org/10.3390/nano10061049.

Full text

Abstract:

Citric acid (CA) was used for the hydrothermal carbonization (HTC) of cellulose nanofiber and found to exert remarkable effects on the chemistry and physical aspects of the product distribution. More specifically, the morphology, yield, elemental and proximate composition, chemical functional groups, thermal properties and surface properties of the resultant hydrochars were studied extensively. The morphological properties of the final char were the singularly most surprising and unique finding of this study. The cellulose nanofiber hydrochars were contrasted to hydrochars from bleached softwo

APA, Harvard, Vancouver, ISO, and other styles

14

Peng, Na Na, and Zhen Gang Liu. "Preparation of Solid Fuel Hydrochars from Waste Biomass by Hydrothermal Carbonization." Applied Mechanics and Materials 768 (June 2015): 73–81. http://dx.doi.org/10.4028/www.scientific.net/amm.768.73.

Full text

Abstract:

Coconut fiber (CF) and eucalyptus leaves (EL) were upgraded by hydrothermal carbonization (HTC) and fuel qualities of corresponding hydrochars were determined in the present study. Compared to raw biomass, the hydrochars have increased energy density, and the decreased nitrogen and sulfur contents showed that reduced pollutant emissions are produced during hydrochar combustion. The ignition temperatures of hydrochars were higher and the combustion also shifted to higher temperature ranges. In addition, HTC significantly reduced the slagging and fouling tendencies of raw biomass and the fouling

APA, Harvard, Vancouver, ISO, and other styles

15

Diaz, Elena, Ines Sanchis, Charles J. Coronella, and Angel F. Mohedano. "Activated Carbons from Hydrothermal Carbonization and Chemical Activation of Olive Stones: Application in Sulfamethoxazole Adsorption." Resources 11, no. 5 (2022): 43. http://dx.doi.org/10.3390/resources11050043.

Full text

Abstract:

This work focuses on the production of activated carbons by hydrothermal carbonization of olive stones at 220 °C, followed by chemical activation with KOH, FeCl3 and H3PO4 of the hydrochar obtained. In addition, N-doped hydrochars were also obtained by performing the hydrothermal carbonization process with the addition of (NH4)2SO4. All hydrochars, N-doped and non-doped, showed low BET surface areas (4–18 m2 g−1). Activated hydrochars prepared using H3PO4 or KOH as activating agents presented BET surface areas of 1115 and 2122 m2 g−1, respectively, and those prepared from N-doped hydrochar sho

APA, Harvard, Vancouver, ISO, and other styles

16

Lee, Jongkeun, Sungwan Cho, Daegi Kim, et al. "Conversion of Slaughterhouse Wastes to Solid Fuel Using Hydrothermal Carbonization." Energies 14, no. 6 (2021): 1768. http://dx.doi.org/10.3390/en14061768.

Full text

Abstract:

In this study, cattle and pig slaughterhouse wastes (SHWs) were hydrothermally carbonized at 150–300 °C, and the properties of SHW-derived hydrochar were evaluated for its use as a solid fuel. The results demonstrated that increasing the hydrothermal carbonization (HTC) treatment temperature improved the energy-related properties (i.e., fuel ratio, higher heating value, and coalification degree) of both the cattle and pig SHW-derived hydrochars. However, the improvements of cattle SHW-derived hydrochars were not as dramatic as that of pig SHW-derived hydrochars, due to the lipid-rich component

APA, Harvard, Vancouver, ISO, and other styles

17

Khalaf, Nidal, Wenxuan Shi, Owen Fenton, Witold Kwapinski, and J. J. Leahy. "Hydrothermal carbonization (HTC) of dairy waste: effect of temperature and initial acidity on the composition and quality of solid and liquid products." Open Research Europe 2 (September 6, 2023): 83. http://dx.doi.org/10.12688/openreseurope.14863.3.

Full text

Abstract:

Background: Hydrothermal carbonization (HTC) of dairy processing waste was performed to investigate the effect of temperature and initial pH on the yield and composition of the solid (hydrochar) and liquor produced. All hydrochars met the EU requirements of organo-mineral solid fertilizers defined in the Fertilizing Products Regulation in terms of phosphorus (P) and mineral content. Methods: Laboratory scale HTC was performed using pressurized reactors, and the products (solid and liquid) were collected, stored and analyzed for elemental composition and nutrient content using Inductively coupl

APA, Harvard, Vancouver, ISO, and other styles

18

Lau Abdullah, Myra Shahira, and NoorAshrina A. Hamid. "Turning Coconut Residue into Hydrochar using Hydrothermal Carbonization." IOP Conference Series: Materials Science and Engineering 1192, no. 1 (2021): 012033. http://dx.doi.org/10.1088/1757-899x/1192/1/012033.

Full text

Abstract:

Abstract The use of renewable and sustainable energy resources is critical, especially considering the scarcity of fossil fuels and the need to combat air pollution. Various types of biomass feedstock, including coconut husk, have been studied in the past to convert into useful forms of hydrochar. However, no one had attempted to use coconut residue to produce hydrochar through hydrothermal carbonization. The goal of this study is to investigate the properties of synthesised hydrochar from coconut residue under various operating conditions in order to determine the highest yield of hydrochar p

APA, Harvard, Vancouver, ISO, and other styles

19

Lentz, Zac, Praveen Kolar, and John J. Classen. "Valorization of Swine Manure into Hydrochars." Processes 7, no. 9 (2019): 560. http://dx.doi.org/10.3390/pr7090560.

Full text

Abstract:

There is a significant interest in valorizing swine manure that is produced in enormous quantities. Therefore, considering the high moisture content in swine manure, the objective of this research was to convert manure slurry into hydrochars via hydrothermal carbonization and analyze the yields, pH, energy contents, and thermal and oxidation kinetic parameters. Experiments were performed in triplicate in 250 mL kettle reactors lined with polypropylene at 180 °C, 200 °C, 240 °C, 220 °C, and 260 °C for 24 h. Analyses of the results indicated that the process temperature affected the hydrochar yi

APA, Harvard, Vancouver, ISO, and other styles

20

Valdés-Rodríguez, Evelyn Mirelle, Leonardo Frias-Gasparri, Didilia Ileana Mendoza-Castillo, Verónica Janeth Landin-Sandoval, and Adrián Bonilla-Petriciolet. "Preparation of Tetra Pak-Based Hydrochars for Cleaning Water Polluted by Heavy Metal Ions: Physicochemical Properties and Removal Mechanism." International Journal of Chemical Engineering 2023 (August 2, 2023): 1–13. http://dx.doi.org/10.1155/2023/3169510.

Full text

Abstract:

This paper addresses the analysis of hydrothermal carbonization of Tetra Pak residues using diluted sulfuric acid to obtain hydrochars for cleaning water polluted by heavy metal ions. The hydrochar samples were prepared under different carbonization conditions, and a detailed study of their composition, textural parameters, and surface functionalities was performed. It was found that the hydrothermal carbonization and dwell time of the Tetra Pak wastes significantly affected the composition of the hydrochars. These hydrochar samples contained oxygenated functional groups and aluminum-silicon m

APA, Harvard, Vancouver, ISO, and other styles

21

Sisuthog, Wanchana, Natthawan Prasongthum, Amornrat Suemanotham, et al. "High-Porosity Hydrochar From Oil Palm Empty Fruit Bunches Via Single-Step Hydrolytic Agent-Assisted Hydrothermal Carbonization." Indonesian Journal of Science and Technology 9, no. 3 (2024): 709–20. https://doi.org/10.17509/ijost.v9i3.74551.

Full text

Abstract:

Empty fruit bunches (EFBs) discarded from the palm oil industry were converted into hydrochars with a high surface area via hydrolytic agent-assisted hydrothermal carbonization (HTC). The reaction temperature was varied (160, 200, 240, and 280 °C) for a constant reaction time of 2 h. The effects of the type of hydrolytic agent (H2O2 and H2SO4) on the hydrochar properties were investigated. The physical and chemical properties of the as-obtained hydrochars, such as surface area, porosity, morphology, functional groups, and elemental composition, were characterized. The results showed that the f

APA, Harvard, Vancouver, ISO, and other styles

22

Saha, Nepu, Akbar Saba, Pretom Saha, et al. "Hydrothermal Carbonization of Various Paper Mill Sludges: An Observation of Solid Fuel Properties." Energies 12, no. 5 (2019): 858. http://dx.doi.org/10.3390/en12050858.

Full text

Abstract:

Each year the pulp and paper industries generate enormous amounts of effluent treatment sludge. The sludge is made up of various fractions including primary, secondary, deinked, fiber rejects sludge, etc. The goal of this study was to evaluate the fuel properties of the hydrochars produced from various types of paper mill sludges (PMS) at 180 °C, 220 °C, and 260 °C. The hydrochars, as well as the raw feedstocks, were characterized by means of ultimate analysis, proximate analysis, moisture, ash, lignin, sugar, and higher heating value (HHVdaf) measurements. Finally, combustion indices of selec

APA, Harvard, Vancouver, ISO, and other styles

23

Arauzo, Pablo J., María Atienza-Martínez, Javier Ábrego, Maciej P. Olszewski, Zebin Cao, and Andrea Kruse. "Combustion Characteristics of Hydrochar and Pyrochar Derived from Digested Sewage Sludge." Energies 13, no. 16 (2020): 4164. http://dx.doi.org/10.3390/en13164164.

Full text

Abstract:

In this paper, hydrochars and pyrochars were produced at 260 °C under different residence times (2 and 4 h) using anaerobic digested sewage sludge (SSL) as initial feedstock. The effect of reaction time on the fuel properties of hydrochars and pyrochars was evaluated. Moreover, the combustion kinetics of raw SSL and the derived pyrochars and hydrochars without coal blending were determined at two different air flows (20 and 90 mL/min) and compared. In the same conditions, the yield of hydrochar was significantly lower than that of pyrochar, confirming the different reaction pathways followed i

APA, Harvard, Vancouver, ISO, and other styles

24

Prieto, Manuel, Hangbo Yue, Nicolas Brun, Gary J. Ellis, Mohammed Naffakh, and Peter S. Shuttleworth. "Hydrothermal Carbonization of Biomass for Electrochemical Energy Storage: Parameters, Mechanisms, Electrochemical Performance, and the Incorporation of Transition Metal Dichalcogenide Nanoparticles." Polymers 16, no. 18 (2024): 2633. http://dx.doi.org/10.3390/polym16182633.

Full text

Abstract:

Given the pressing climate and sustainability challenges, shifting industrial processes towards environmentally friendly practices is imperative. Among various strategies, the generation of green, flexible materials combined with efficient reutilization of biomass stands out. This review provides a comprehensive analysis of the hydrothermal carbonization (HTC) process as a sustainable approach for developing carbonaceous materials from biomass. Key parameters influencing hydrochar preparation are examined, along with the mechanisms governing hydrochar formation and pore development. Then, this

APA, Harvard, Vancouver, ISO, and other styles

25

Ahmad Ikhwan Muaz Abd Rahman, Nur Alwani Ali Bashah, Wan Zuraida Wan Kamis, et al. "Synthesis of Hydrochars via Hydrothermal Carbonization of Zinc Chloride Activated Cotton Textile Waste." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 114, no. 2 (2024): 196–204. http://dx.doi.org/10.37934/arfmts.114.2.196204.

Full text

Abstract:

Anthropogenic pollution from fossil fuel combustion due to increasing global populations and emerging industries poses a serious threat to the environment. Therefore, it is vital to explore alternative green energy sources. Hence, this study synthesized renewable solid fuel hydrochars by utilizing biomass of cotton textile waste (CTW) as feedstock. ZnCl2 was selected as a catalyst due to its Lewis acid properties promoting hydrolysis and dehydration of raw materials towards hydrochar formation. The ZnCl2-activated cotton textile waste (ZnCl2-CTW) was prepared via the wet impregnation method at

APA, Harvard, Vancouver, ISO, and other styles

26

Marrocchi, Assunta, Elisa Cerza, Suhas Chandrasekaran, et al. "Hydrochar from Pine Needles as a Green Alternative for Catalytic Electrodes in Energy Applications." Molecules 29, no. 14 (2024): 3286. http://dx.doi.org/10.3390/molecules29143286.

Full text

Abstract:

Hydrothermal carbonization (HTC) serves as a sustainable method to transform pine needle waste into nitrogen-doped (N-doped) hydrochars. The primary focus is on evaluating these hydrochars as catalytic electrodes for the oxygen reduction reaction (ORR) and carbon dioxide reduction reaction (CO2RR), which are pivotal processes with significant environmental implications. Hydrochars were synthesized by varying the parameters such as nitrogen loading, temperature, and residence time. These materials were then thoroughly characterized using diverse analytical techniques, including elemental analys

APA, Harvard, Vancouver, ISO, and other styles

27

Calucci, Lucia, and Claudia Forte. "Influence of Process Parameters on the Hydrothermal Carbonization of Olive Tree Trimmings: A 13C Solid-State NMR Study." Applied Sciences 13, no. 3 (2023): 1515. http://dx.doi.org/10.3390/app13031515.

Full text

Abstract:

Chars obtained from the hydrothermal carbonization (HTC) of agricultural wastes are increasingly being employed as solid biofuels. Their properties are strongly dependent on HTC process parameters. In this study, 13C solid-state NMR spectroscopy was applied to semiquantitatively investigate carbon functionalities present in olive tree trimming feedstock and in the corresponding hydrochar samples,. Hydrochars were obtained by HTC under different conditions, that is, at two different temperatures (180 and 250 °C), with two different biomass/water ratios (B/W of 7 and 25% w/w) and with reaction t

APA, Harvard, Vancouver, ISO, and other styles

28

Suhas, Monika Chaudhary, Shubham Chaudhary, et al. "Transforming Biomass Waste into Hydrochars and Porous Activated Carbon: A Characterization Study." Resources 14, no. 3 (2025): 34. https://doi.org/10.3390/resources14030034.

Full text

Abstract:

Hydrothermal carbonization (HTC) is an environmentally friendly process for transforming biomass into sustainable hydrochar, which is a carbon-rich material with a variety of potential applications. Herein, Tectona grandis seeds (TGs) were transformed into hydrochars using HTC at low temperatures (180–250 °C) and autogenous pressure. The prepared hydrochars were rich in oxygenated functional groups. The optimized hydrochar, HC-230-4 (prepared at 230 °C, for 4 h), presented a ratio of H/C = 0.95 and O/C = 0.29, an improved degree of coalification, and a high heating value (26.53 MJ kg−1), which

APA, Harvard, Vancouver, ISO, and other styles

29

Castro-Cárdenas, Marisol, Nahum Andrés Medellín-Castillo, Lázaro Adrián González-Fernández, et al. "Innovative Solution for Invasive Species and Water Pollution: Hydrochar Synthesis from Pleco Fish Biomass." Processes 12, no. 6 (2024): 1158. http://dx.doi.org/10.3390/pr12061158.

Full text

Abstract:

In recent years, the invasive pleco fish has emerged as a global concern due to its adverse effects on ecosystems and economic activities, particularly in various water bodies in Mexico. This study introduces an innovative solution, employing microwave-assisted hydrothermal carbonization (MHTC) to synthesize hydrochar from pleco fish biomass. The research aimed to optimize synthesis conditions to enhance hydrochar yield, calorific value, and adsorption capacities for fluoride and cadmium in water. MHTC, characterized by low energy consumption, high reaction rates, and a simple design, was empl

APA, Harvard, Vancouver, ISO, and other styles

30

Song, Eunhye, Seyong Park, Seongkuk Han, Eusil Lee, and Ho Kim. "Characteristics of Hydrothermal Carbonization Hydrochar Derived from Cattle Manure." Energies 15, no. 23 (2022): 9195. http://dx.doi.org/10.3390/en15239195.

Full text

Abstract:

The characteristics of hydrothermal carbonization hydrochar derived from cattle manure including excrements and lignocellulosic biomass were analyzed. The effects of hydrothermal carbonization were evaluated by varying the reaction temperatures in the range of 180~240 °C. The hydrochars were evaluated with respect to their usefulness as renewable fuels via physicochemical analysis and pyrolysis processes. As reaction temperatures increased, the fractions of fixed carbon in proximate analyses, carbon elements in ultimate analyses, and higher heating values of hydrothermally carbonized biochars

APA, Harvard, Vancouver, ISO, and other styles

31

Karim, Adnan Asad, Mᵃ Lourdes Martínez-Cartas, and Manuel Cuevas-Aranda. "Industrial Two-Phase Olive Pomace Slurry-Derived Hydrochar Fuel for Energy Applications." Polymers 16, no. 11 (2024): 1529. http://dx.doi.org/10.3390/polym16111529.

Full text

Abstract:

The present study aims to resolve the existing research gaps on olive pomace (OP) hydrochars application as a fuel by evaluating its molecular structures (FTIR and solid NMR analysis), identifying influential characteristics (Pearson correlation analysis), process optimization (response surface methodology), slagging–fouling risks (empirical indices), and combustion performance (TG-DSC analysis). The response surfaces plot for hydrothermal carbonization (HTC) of OP slurry performed in a pressure reactor under varied temperatures (180–250 °C) and residence times (2–30 min) revealed 250 °C for 3

APA, Harvard, Vancouver, ISO, and other styles

32

Aliyu, Mohammed, Kazunori Iwabuchi, and Takanori Itoh. "Production of solid biofuel via hydrothermal carbonization of wood shavings: Influence of biomass-to-water ratio and carbonization temperature on the fuel characteristics of dried hydrochar." E3S Web of Conferences 601 (2025): 00012. https://doi.org/10.1051/e3sconf/202560100012.

Full text

Abstract:

Hydrothermal carbonization (HTC) is recognised as a low temperature and efficient method for the conversion of biomass to solid biofuel. In this study, the effect of process temperature and biomass-to-water ratio (B/W) on the fuel properties of hydrochar produced from wood shavings was investigated. HTC was conducted in an autoclave using reaction temperature of 230 °C and 260 °C for 20 minutes with B/W ratio of 0.11 to 0.43. The produced hydrochars were characterised by the mass yield (MY), higher heating value (HHV), proximate and ultimate properties. The results showed that the properties o

APA, Harvard, Vancouver, ISO, and other styles

33

Xiong, Jiangbo, Shuaiwei Chen, Jiaxin Wang, Yujie Wang, Xiaolin Fang, and Huajun Huang. "Speciation of Main Nutrients (N/P/K) in Hydrochars Produced from the Hydrothermal Carbonization of Swine Manure under Different Reaction Temperatures." Materials 14, no. 15 (2021): 4114. http://dx.doi.org/10.3390/ma14154114.

Full text

Abstract:

Hydrothermal carbonization (HTC) has been proved to be a promising technology for swine manure (SM) treatment. Currently, there is a lack of systematic understanding of the transformation characteristics of nutrient speciation in the HTC of SM. In this study, the speciation of the main nutrients (N/P/K) in SM-derived hydrochar produced at different reaction temperatures (200–280 °C) was investigated. The recovery of P (61.0–67.1%) in hydrochars was significantly higher than that of N (23.0–39.8%) and K (25.5–30.0%), and the increase in reaction temperature promoted the recovery of P and reduce

APA, Harvard, Vancouver, ISO, and other styles

34

Zulfajri, Muhammad, Muhammad Adlim, Nurlena Andalia, Sri Ismulyati, Ainun Mardhiah, and Ria Ervilita. "Synthesis and Characterization of Hydrochar by Hydrothermal Carbonization of Pineapple Crown Waste." Proceedings of International Conference on Multidiciplinary Research 7, no. 1 (2024): 84–89. https://doi.org/10.32672/picmr.v7i1.2759.

Full text

Abstract:

Hydrochar, produced through the hydrothermal carbonization (HTC) of biomass, presents a sustainable alternative to conventional carbon-based environmental sorbents. In this study, pineapple crown waste, an often-discarded agricultural byproduct, was used as the feedstock for hydrochar synthesis via HTC. The process was optimized at 200℃ for 15 hours to enhance carbonization efficiency and improve the hydrochar’s surface characteristics. Structural, morphological, and functional group analyses were performed using scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR

APA, Harvard, Vancouver, ISO, and other styles

35

Vardiambasis, Ioannis O., Theodoros N. Kapetanakis, Christos D. Nikolopoulos, et al. "Hydrochars as Emerging Biofuels: Recent Advances and Application of Artificial Neural Networks for the Prediction of Heating Values." Energies 13, no. 17 (2020): 4572. http://dx.doi.org/10.3390/en13174572.

Full text

Abstract:

In this study, the growing scientific field of alternative biofuels was examined, with respect to hydrochars produced from renewable biomasses. Hydrochars are the solid products of hydrothermal carbonization (HTC) and their properties depend on the initial biomass and the temperature and duration of treatment. The basic (Scopus) and advanced (Citespace) analysis of literature showed that this is a dynamic research area, with several sub-fields of intense activity. The focus of researchers on sewage sludge and food waste as hydrochar precursors was highlighted and reviewed. It was established t

APA, Harvard, Vancouver, ISO, and other styles

36

Min, A. K., N. Tuntiwiwattanapun, and M. Rachakornkij. "Activated Rice Husk Hydrochar as an additive in cement mortars and its role in carbon sequestration." IOP Conference Series: Earth and Environmental Science 1500, no. 1 (2025): 012053. https://doi.org/10.1088/1755-1315/1500/1/012053.

Full text

Abstract:

Abstract Rice husk, a silica-rich agricultural waste, can be transformed into hydrochar via hydrothermal carbonisation (HTC) for applications like cement additives to promote carbon sequestration. This study explores the potential of activated rice husk hydrochar as a sustainable additive in cement mortars to enhance carbon sequestration potential. Hydrochar produced at varying temperatures was characterised using BET, XRF, XRD, SEM, and FTIR to analyse its chemical composition and microstructure. FTIR revealed critical functional groups - carbonyl (C=O) and hydroxyl (O-H) - essential for long

APA, Harvard, Vancouver, ISO, and other styles

37

Soroush, Sepideh, Frederik Ronsse, Jihae Park, and Philippe M. Heynderickx. "Comparison Study on the Water-to-Biomass Ratio in Hydrothermal Carbonization of Fresh Seaweed." Processes 11, no. 4 (2023): 1123. http://dx.doi.org/10.3390/pr11041123.

Full text

Abstract:

Upgrading wet biomass to char via hydrothermal carbonization is a promising method to produce valuable resources for adsorption of organic impurities. In this work, a fresh green seaweed, Ulva pertusa, was investigated to demonstrate the effects of pre-drying and pre-washing on the process and the hydrochar production. Surface moisture and bound moisture were found to affect this process. Hydrochar produced from fresh seaweed with additional water showed similar adsorption capacity to fresh seaweed without additional water and 38% higher than hydrochar from soaked dry seaweed. This was support

APA, Harvard, Vancouver, ISO, and other styles

38

Brown, Aaron E., Jessica M. M. Adams, Oliver R. Grasham, Miller Alonso Camargo-Valero, and Andrew B. Ross. "An Assessment of Different Integration Strategies of Hydrothermal Carbonisation and Anaerobic Digestion of Water Hyacinth." Energies 13, no. 22 (2020): 5983. http://dx.doi.org/10.3390/en13225983.

Full text

Abstract:

Water hyacinth (WH) is an invasive aquatic macrophyte that dominates freshwater bodies across the world. However, due to its rapid growth rate and wide-spread global presence, WH could offer great potential as a biomass feedstock, including for bioenergy generation. This study compares different integration strategies of hydrothermal carbonisation (HTC) and anaerobic digestion (AD) using WH, across a range of temperatures. These include (i) hydrochar combustion and process water digestion, (ii) hydrochar digestion, (iii) slurry digestion. HTC reactions were conducted at 150 °C, 200 °C, and 250

APA, Harvard, Vancouver, ISO, and other styles

39

Kohzadi, Shadi, Nader Marzban, Kazem Godini, Nader Amini, and Afshin Maleki. "Effect of Hydrochar Modification on the Adsorption of Methylene Blue from Aqueous Solution: An Experimental Study Followed by Intelligent Modeling." Water 15, no. 18 (2023): 3220. http://dx.doi.org/10.3390/w15183220.

Full text

Abstract:

Wheat straw, which is a carbon-rich precursor and a common agriculture waste in Sanandaj, was modified to produce hydrochar with high adsorption capacity by the hydrothermal carbonization (HTC) method. The hydrochars were tested as adsorbents to remove methylene blue (MB) from aqueous solution, and the effects of various interfering parameters, including pH, MB concentration, and adsorbent dosage, were investigated using artificial neural networks (ANNs) on adsorption modeling. Adsorption isotherms and kinetics were studied to explain the MB adsorption process. The prepared hydrochars were cha

APA, Harvard, Vancouver, ISO, and other styles

40

Saha, Swarna, Md Tahmid Islam, Joshua Calhoun, and Toufiq Reza. "Effect of Hydrothermal Carbonization on Fuel and Combustion Properties of Shrimp Shell Waste." Energies 16, no. 14 (2023): 5534. http://dx.doi.org/10.3390/en16145534.

Full text

Abstract:

Shrimp shell is a popularly consumed seafood around the globe which generates a substantial quantity of solid wet waste. Hydrothermal carbonization (HTC) could be a viable pathway to convert wet shrimp shell waste into energy-dense hydrochar. The present study aims to assess the fuel properties, physicochemical attributes, and combustion properties of shrimp shell hydrochar generated with a wide range of HTC temperatures (110–290 °C). Results showed that a rise in carbonization rate results in a decline in mass yield to as low as 25.7% with the increase in HTC temperature. Thermogravimetric an

APA, Harvard, Vancouver, ISO, and other styles

41

Naranjo, Jhosué, Evelyn Juiña, Carlos Loyo, et al. "Preparation of Adsorbent Materials from Rice Husk via Hydrothermal Carbonization: Optimization of Operating Conditions and Alkali Activation." Resources 12, no. 12 (2023): 145. http://dx.doi.org/10.3390/resources12120145.

Full text

Abstract:

Hydrothermal carbonization (HTC) of rice husk was optimized in terms of the adsorption capacity at equilibrium (qe) and hydrochar mass yield (MY). The studied variables were reaction temperature, residence time, and biomass-to-water ratio by means of response surface methodology. In both cases, reaction temperature resulted the most significant parameter promoting high qe values at higher temperatures when treating methylene blue (MB) as the target pollutant. Nevertheless, MY was low (~40%) when focusing on a possible industrial application. Hence, maximizing qe and MY simultaneously by optimi

APA, Harvard, Vancouver, ISO, and other styles

42

Kalderis, D., M. S. Kotti, A. Méndez, and G. Gascó. "Characterization of hydrochars produced by hydrothermal carbonization of rice husk." Solid Earth 5, no. 1 (2014): 477–83. http://dx.doi.org/10.5194/se-5-477-2014.

Full text

Abstract:

Abstract. Biochar is the carbon-rich product obtained when biomass, such as wood, manure or leaves, is heated in a closed container with little or no available air. In more technical terms, biochar is produced by so-called thermal decomposition of organic material under limited supply of oxygen (O2), and at relatively low temperatures (< 700 °C). Hydrochar differentiates from biochar because it is produced in an aqueous environment, at lower temperatures and longer retention times. This work describes the production of hydrochar from rice husks using a simple, safe and environmentally frien

APA, Harvard, Vancouver, ISO, and other styles

43

Sui, Zifeng, Jie Wu, Jiawei Wang, Yutong Cao, Qihao Wang, and Weipeng Chen. "Effect of hydrothermal carbonization temperature on fuel properties and combustion behavior of high-ash corn and rice straw hydrochar." Thermal Science, no. 00 (2022): 186. http://dx.doi.org/10.2298/tsci220813186s.

Full text

Abstract:

Hydrothermal carbonization (HTC) has been proven to improve the fuel properties of low-ash straw biomass. To explore the effect of HTC on high-ash straw biomass, the fuel properties and combustion behavior of hydrochar prepared by high-ash rice straw and corn straw at different temperature were studied. The results showed that increased reaction temperature could improve the C content, fixed carbon, heating value and fuel ratios (FC/VM) in high-ash straw hydrochars, which is similar to the change trend of low-ash biomass. The hydrochar prepared at 260?C has similar H/C and O/C atomic ratios an

APA, Harvard, Vancouver, ISO, and other styles

44

Kahilu, Gentil Mwengula, Samson Bada, and Jean Mulopo. "Coal Discards and Sewage Sludge Derived-Hydrochar for HIV Antiretroviral Pollutant Removal from Wastewater and Spent Adsorption Residue Evaluation for Sustainable Carbon Management." Sustainability 14, no. 22 (2022): 15113. http://dx.doi.org/10.3390/su142215113.

Full text

Abstract:

The effects of various parameter interactions on the textural structure of hydrochars produced via hydrothermal (HTC) and co-hydrothermal (Co-HTC) treatments of coal discards and sewage sludge (wastes), as well as the subsequent use of the hydrochars (HCs) synthesized for HIV drug (nevirapine and lamivudine) removal from wastewater, were investigated in this study. The HTC and Co-HTC process improved the carbon content of the raw material by 13.47%, 7.08%, and 30.65% for hydrochar coal tailing (HCT), hydrochar coal slurry (HCS), and hydrochar from coal–sewage blend (HCB), respectively. The Co-

APA, Harvard, Vancouver, ISO, and other styles

45

Multhaupt, Hendrik, Patrick Bottke, and Michael Wark. "Enhanced Breaking of Lignin and Mesopore Formation in Zinc Chloride Assisted Hydrothermal Carbonization of Waste Biomasses." C 7, no. 4 (2021): 77. http://dx.doi.org/10.3390/c7040077.

Full text

Abstract:

Hydrochars from hydrothermal carbonization of different biowaste materials (dried dandelion, sawdust, coconut shell powder) formed in the presence of aqueous salt solutions were compared to those obtained by the common method in pure water. Hydrochars with increased carbon contents, pore volume and surface areas were specifically obtained from coconut shell powder in the presence of zinc chloride. Compositional and structural changes within the hydrochar products caused by the process conditions and/or the additive were characterized by solid state 13C NMR spectroscopy, proving that cellulose

APA, Harvard, Vancouver, ISO, and other styles

46

Tamyiz, Muchammad, Khilyatul Afkar, Atik Widiyanti, et al. "Recent Developments in Biomass-Derived Hydrochar Patents for Enhanced Environmental Applications." IOP Conference Series: Earth and Environmental Science 1448, no. 1 (2025): 012012. https://doi.org/10.1088/1755-1315/1448/1/012012.

Full text

Abstract:

Abstract Growing environmental concerns have spurred extensive research and innovation in sustainable materials. Hydrochar, produced from biomass through hydrothermal carbonization, has emerged as a versatile solution with potential for various environmental applications. This study examines the role, challenges, and global research perspectives on hydrochar patents derived from biomass. Despite increasing interest, significant knowledge gaps remain in understanding the full landscape and impact of hydrochar patents. We analysed 211 patent documents and 116 simple families, primarily within th

APA, Harvard, Vancouver, ISO, and other styles

47

Fan, Fangyu, Zongling Yang, Han Li, Zhengjun Shi, and Huan Kan. "Preparation and properties of hydrochars from macadamia nut shell via hydrothermal carbonization." Royal Society Open Science 5, no. 10 (2018): 181126. http://dx.doi.org/10.1098/rsos.181126.

Full text

Abstract:

Macadamia nut shell (MNS) is a type of waste lignocellulose obtained from macadamia nut production processing. Large MNS wastes caused serious resource waste and environmental pollution. So, preparation of hydrochars from MNS via hydrothermal carbonization (HTC) is of great significance. HTC of MNS was conducted to study the effect of process parameters, including HTC temperature (180–260°C) and residence time (60–180 min) on the properties of hydrochars. Results showed that the increase in HTC temperature and residence time decreased the mass yield of hydrochars and increased the high heating

APA, Harvard, Vancouver, ISO, and other styles

48

Thakur, Himanshi. "Hydrochar Production Methods: Comparative Insights into Hydrothermal and Microwave Processes." African Journal of Biological Sciences 6, no. 7 (2024): 3033–44. http://dx.doi.org/10.48047/afjbs.6.7.2024.3033-3044.

Full text

Abstract:

This study compares hydrochar production from agricultural waste using conventional hydrothermal carbonization (HTC) and microwave-assisted carbonization methods. Wheat straw (HWS), rice straw (HRS), and bagasse (HBG) were used as feedstocks. Microwave-assisted carbonization resulted in higher yields and distinct chemical structures compared to conventional HTC. Microwave hydrochars (m-HWS, m-HRS, mHBG) showed lower surface areas but increased pore volumes and thermal stability. They also exhibited enhanced heavy metal adsorption capacities, particularly at higher pH levels. These findings hig

APA, Harvard, Vancouver, ISO, and other styles

49

Paneque, Marina, Heike Knicker, Jürgen Kern, and José María De la Rosa. "Hydrothermal Carbonization and Pyrolysis of Sewage Sludge: Effects on Lolium perenne Germination and Growth." Agronomy 9, no. 7 (2019): 363. http://dx.doi.org/10.3390/agronomy9070363.

Full text

Abstract:

The pyrolysis and hydrothermal carbonization (HTC) of sewage sludge (SS) resulted in products free of pathogens, with the potential for being used as soil amendment. With this work, we evaluated the impact of dry pyrolysis-treated (600 °C, 1 h) and HTC-treated (200 °C, 260 °C; 0.5 h, 3 h) SS on the germination, survival, and growth of Lolium perenne during an 80 day greenhouse experiment. Therefore, the hydrochars and pyrochars were amended to a Calcic Cambisol at doses of 5 and 25 t ha−1. The addition of sludge pyrochars to the Cambisol did not affect Lolium germination, survival rates or pla

APA, Harvard, Vancouver, ISO, and other styles

50

Wan, Xiaoman, Ruipeng Liu, and Ailing Cheng. "Zero-Valent Iron-Supported Magnetic Hydrochar Derived from Kitchen Waste for Efficient Fenton-like Degradation of Tetracycline Hydrochloride." Sustainability 17, no. 3 (2025): 1295. https://doi.org/10.3390/su17031295.

Full text

Abstract:

In this study, hydrochars loaded with iron species (Fe@HTC and Fe@HTC−T) were prepared by chemical co-precipitation and tubular furnace sintering treatment to develop efficient and sustainable catalysts for antibiotic wastewater treatment, addressing key challenges in sustainable environmental management. The characterization results indicated that iron species loaded on the hydrochars changed from Fe3O4 to FeO and then to metallic Fe with the pyrolysis temperature increased from 400 °C to 800 °C. The results of the characterization revealed a phase transition of iron species, confirming the t

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!