Sustainable valorization of food wastes into solid fuel by hydrothermal carbonization.

The aim of this study was to comparatively evaluate the effect of hydrothermal carbonization (HTC) conditions on the yield and the fuel properties of hydrochar obtained from food waste (FW) and its digestate (FD). The mass yield of hydrochars from FW and FD were found between 47.0 and 69.8%, 43.0 and 58.2%, respectively, under tested conditions. Based on both mass and energy yields, optimum temperature and duration were selected as 200 °C and 60 min for FW and 200 °C and 30 min for FD. FW and FD hydrochars produced optimum conditions had similar properties to lignite. The selected hydrochars were also subjected to steam gasification and combustion experiments. The combustion reactivity of hydrochars was found to be higher than that of lignite. Steam gasification produced 57-59 mol H2/kg hydrochar. The overall results emphasize the potential of H2 production by integrated systems of dark fermentation, HTC and steam gasification, besides production of solid fuel.

• Publication year

  2019

• Venue

  Bioresource Technology

• Publication date

  2019-11-01

• Fields of study

  Agricultural and Food Sciences, Medicine, Environmental Science

• Identifiers
  DOI 10.1016/j.biortech.2019.121959PMID 31421594
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

• Effect of percolation frequency on biohydrogen production from fruit and vegetable wastes by dry fermentation

  2019cited by this paper
• Activity enhancement of ammonia-oxidizing bacteria and nitrite-oxidizing bacteria in activated sludge process: metabolite reduction and CO2 mitigation intensification process

  2019cited by this paper
• Hydrothermal Carbonization of Fruit Wastes: A Promising Technique for Generating Hydrochar

  2018cited by this paper
• Influences of feedstock type and process variables on hydrochar properties.

  2018cited by this paper
• Hydrothermal carbonization of Opuntia ficus-indica cladodes: Role of process parameters on hydrochar properties.

  2018cited by this paper
• Comparative evaluation of dry and wet carbonization of agro industrial wastes for the production of soil improver

  2018cited by this paper
• Production and utilization of fuel pellets from biomass: A review

  2018cited by this paper
• A review of the hydrothermal carbonization of biomass waste for hydrochar formation: Process conditions, fundamentals, and physicochemical properties

  2018cited by this paper
• Sustainable hydrogen production options from food wastes

  2018cited by this paper
• Energy performance of an integrated bio-and-thermal hybrid system for lignocellulosic biomass waste treatment.

  2017cited by this paper
• Hydrothermal carbonization of typical components of municipal solid waste for deriving hydrochars and their combustion behavior.

  2017cited by this paper
• Wet torrefaction of microalga Chlorella vulgaris ESP-31 with microwave-assisted heating

  2017cited by this paper
• Physicochemical, Pyrolytic, and Combustion Characteristics of Hydrochar Obtained by Hydrothermal Carbonization of Biomass

  2016cited by this paper
• Agro-industrial waste to solid biofuel through hydrothermal carbonization.

  2016cited by this paper
• Conversion of tomato-peel waste into solid fuel by hydrothermal carbonization: Influence of the processing variables.

  2016cited by this paper
• Fate of inorganic material during hydrothermal carbonisation of biomass: Influence of feedstock on combustion behaviour of hydrochar

  2016cited by this paper
• Fruit waste as feedstock for recovery by pyrolysis technique

  2016cited by this paper
• Effects of hydrothermal treatment temperature and residence time on characteristics and combustion behaviors of green waste

  2016cited by this paper
• Gasification characteristics of hydrochar and pyrochar derived from sewage sludge

  2016cited by this paper
• New opportunities for agricultural digestate valorization: current situation and perspectives

  2015cited by this paper
• Investigation on the Physical and Chemical Properties of Hydrochar and Its Derived Pyrolysis Char for Their Potential Application: Influence of Hydrothermal Carbonization Conditions

  2015cited by this paper
• Characterization of hydrochar obtained from hydrothermal carbonization of wheat straw digestate

  2015cited by this paper
• Hydrothermal carbonization of lignocellulosic biomass: Effect of process conditions on hydrochar properties

  2015cited by this paper
• Investigation on the ignition and burnout temperatures of bamboo and sugarcane bagasse by thermogravimetric analysis.

  2015cited by this paper
• Pretreatment of biomass by torrefaction and carbonization for coal blend used in pulverized coal injection.

  2014cited by this paper
• Hydrothermal carbonization and torrefaction of grape pomace: a comparative evaluation.

  2014cited by this paper
• Cascaded production of biogas and hydrochar from wheat straw: Energetic potential and recovery of carbon and plant nutrients

  2013cited by this paper
• Conversion of sewage sludge to clean solid fuel using hydrothermal carbonization: Hydrochar fuel characteristics and combustion behavior

  2013cited by this paper
• Hydrothermal carbonization: Fate of inorganics

  2013cited by this paper
• Hydrothermal carbonization of agricultural residues.

  2013cited by this paper
• Hydrothermal carbonization as an effective way of densifying the energy content of biomass

  2012cited by this paper
• Hydrothermal carbonization of anaerobically digested maize silage.

  2011cited by this paper
• Hydrothermal Carbonization (HTC) of Lignocellulosic Biomass

  2011cited by this paper
• Hydrothermal carbonization of biomass as a route for the sequestration of CO2: chemical and structural properties of the carbonized products.

  2011cited by this paper
• Applicability of biogas digestate as solid fuel

  2010cited by this paper
• Co-gasification Reactivity of Coal and Woody Biomass in High-Temperature Gasification†

  2010cited by this paper
• Pyrolysis and Torrefaction

  2010cited by this paper
• Thermogravimetric assessment of combustion characteristics of blends of a coal with different biomass chars

  2010cited by this paper
• Hydrogen-rich gas production by steam gasification of char from biomass fast pyrolysis in a fixed-bed reactor: influence of temperature and steam on hydrogen yield and syngas composition.

  2010cited by this paper
• Chemical and structural properties of carbonaceous products obtained by hydrothermal carbonization of saccharides.

  2009cited by this paper
• Overview and some issues related to co‐firing biomass and coal

  2008cited by this paper
• A comparative reactivity and kinetic study on the combustion of coal–biomass char blends

  2006cited by this paper
• Carbohydrate analysis by a phenol-sulfuric acid method in microplate format.

  2005cited by this paper
• A UNIFIED CORRELATION FOR ESTIMATING HHV OF SOLID, LIQUID AND GASEOUS FUELS

  2002cited by this paper

• Hydrothermal liquefaction of confused waste to bio-oil: A study on elemental and energy recovery

  2025cites this paper
• Conversion of Waste Tea for Solid Carbon Fuel Via Hydrothermal Carbonization Process, A Review

  2025cites this paper
• Harnessing the untapped value of food waste: A review of integrated valorization technologies

  2025cites this paper
• Influence of the initial substrate concentration on the products obtained during hydrothermal carbonisation of kitchen waste.

  2025cites this paper
• A systematic review on hydrogen production via hydrochar-based gasification

  2025cites this paper
• Performance of the Hydrothermal Carbon Prepared From the Food Waste as Solid Fuel and a Cu2+ Adsorbent

  2025cites this paper
• A bi-level optimization model of integrated energy system considering waste treatment under uncertainty

  2025cites this paper
• Effect of Process Variables on Hydrothermal carbonization of Food Waste

  2025cites this paper
• A comprehensive review of advancements and challenges in hydrogen production from thermochemical and biological conversion of food waste: The path forward

  2025cites this paper
• Integrated hydrothermal carbonization to enhance resource and energy recovery from food waste

  2025cites this paper
• Municipal solid waste valorization to biofuel production: Comparative evaluation, policies, challenges, and practices

  2025cites this paper
• Sustaining Food Waste for Energy Conversion: A Mini Review

  2025cites this paper
• SUSTAINABLE H2-RICH BIO-SYNGAS PRODUCTION FROM HIGH MOISTURE WASTES: STEAM GASIFICATION OF HYDROCHARS OBTAINED FROM APPLE POMACE IN SINGLE- AND BINARY- SOLVENT SYSTEMS

  2025cites this paper
• Recent Advances in Hydrothermal Carbonization of Food Waste Derived Bioproducts: Valorization Approaches, Applications, and the Prospective Assessment

  2025influential citation
• Comprehensive assessment of biochar derived from thermochemical processing of food waste digestate: Properties, preparation factors, and applications

  2025cites this paper
• Optimized hydrothermal carbonization of chicken manure and anaerobic digestion of its process water for better energy management.

  2025cites this paper
• Comparative analysis of torrefaction and hydrothermal carbonization of kitchen waste for sustainable biofuel production

  2025cites this paper
• Holistic biorefinery approach for biogas and hydrogen production: Integration of anaerobic digestion with hydrothermal carbonization and steam gasification.

  2024cites this paper
• Conversion of the solid fraction of food waste separated by a screw press using an integrated hydrothermal carbonization and anaerobic digestion process.

  2024cites this paper
• A comprehensive evaluation of recent advancement in municipal solid waste gasification: Research status, technical challenges and Perspectives

  2024cites this paper
• Valorization of process water from hydrothermal carbonization of food waste by dark fermentation

  2024cites this paper
• Exploring Sustainable Energy: An Overview of Biochemical and Thermochemical Conversion of Dairy and Food Waste

  2024cites this paper
• Comprehensive evaluation of product characteristics and energy consumption in hydrothermal carbonization of food waste anaerobic digestate: A perspective on phosphorus recovery and fuel properties

  2024cites this paper
• Investigation of Hydrothermal Carbonization of Exhausted Chestnut from Tannin Extraction: Impact of Process Water Recirculation for Sustainable Fuel Production

  2024cites this paper
• Anaerobic digestion of process water from hydrothermal treatment processes: a review of inhibitors and detoxification approaches

  2024cites this paper
• A review of hydrogen production from food waste through gasification process

  2024cites this paper
• Review of Opportunities and Challenges for Food Waste Circular Economy Advancement via Hydrothermal Carbonization

  2024cites this paper
• Direct and Two-Stage Hydrothermal Liquefaction of Chicken Manure: Impact of Reaction Parameters on Biocrude Oil Upgradation

  2024cites this paper
• Sustainable Management Strategies for Fruit Processing Byproducts for Biorefineries: A Review

  2024cites this paper
• Reuse and Valorization of Solid Digestate Ashes from Biogas Production

  2024cites this paper
• Process simulation of co-HTC of sewage sludge and food waste digestates and supercritical water gasification of aqueous effluent integrated with biogas plants

  2024cites this paper
• Life cycle assessment of food waste energy and resource conversion scheme via the integrated process of anaerobic digestion and hydrothermal carbonization

  2023cites this paper
• Persulfate degradation of wastewater from hydrothermal carbonization of food waste catalyzed by activated carbon

  2023cites this paper
• Syngas production from thermochemical conversion of mixed food waste: A review

  2023cites this paper
• N-doped activated carbon as support of Pd-Sn bimetallic catalysts for nitrate catalytic reduction

  2023cites this paper
• Comparison of Nutrient-Release Strategies in Hydrothermally Treated Digested Sewage Sludge

  2023cites this paper
• Digestate-derived carbonized char and activated carbon: Application perspective.

  2023cites this paper
• Thermochemical upcycling of food waste into engineered biochar for energy and environmental applications: A critical review

  2023cites this paper
• Uncovering the transition between hydrothermal carbonization and liquefaction via secondary char extraction: A case study using food waste.

  2023cites this paper
• Hydrothermal carbonization of food waste for sustainable biofuel production: Advancements, challenges, and future prospects.

  2023cites this paper
• Potential of waste stream in conversion into sustainable metabolites: An overview and update

  2023cites this paper
• Involvement of Cooking Oils in Hydrothermal Carbonization of Food Waste

  2023cites this paper
• Hydrothermal carbonization of food waste digestate solids: Effect of temperature and time on products characteristic and environmental evaluation

  2023cites this paper
• Internet of Things Assisted Solid Biofuel Classification Using Sailfish Optimizer Hybrid Deep Learning Model for Smart Cities

  2023cites this paper
• Synergetic anaerobic digestion of food waste for enhanced production of biogas and value-added products: strategies, challenges, and techno-economic analysis

  2023cites this paper
• Hydrothermal carbonization of food waste: Process parameters optimization and biomethane potential evaluation of process water.

  2023cites this paper
• Optimization of hydrothermal carbonization of food waste as sustainable energy conversion approach: Enhancing the properties of hydrochar by landfill leachate substitution as reaction medium and acetic acid catalyst addition

  2023cites this paper
• Study on the Effect of Hydrothermal Carbonization Parameters on Fuel Properties of Sewage Sludge Hydrochar

  2023cites this paper
• Influence of temperature and process water circulation on hydrothermal carbonization of food waste for sustainable fuel production

  2023cites this paper
• Pyrolysis kinetics of the hydrothermal carbons derived from microwave-assisted hydrothermal carbonization of food waste digestate

  2022cites this paper
• Hydrothermal Conversion of Food Waste to Carbonaceous Solid Fuel—A Review of Recent Developments

  2022influential citation
• Treatment of wastewater from food waste hydrothermal carbonization via Fenton oxidization combined activated carbon adsorption

  2022cites this paper
• Hydrothermal Carbonization of the Wet Fraction from Mixed Municipal Solid Waste: A Fuel and Structural Analysis of Hydrochars

  2022cites this paper
• Hydrothermal carbonization of food waste as sustainable energy conversion path.

  2022cites this paper
• Study on the Effect of Hydrothermal Carbonization Parameters on Fuel Properties of Chicken Manure Hydrochar

  2022influential citation
• Food waste valorisation via gasification - A review on emerging concepts, prospects and challenges.

  2022cites this paper
• Investigation of the potential of greenhouse post-harvest wastes for bioenergy production and utilization for heating and carbon dioxide application

  2022cites this paper
• Multi-Variate and Multi-Response Analysis of Hydrothermal Carbonization of Food Waste: Hydrochar Composition and Solid Fuel Characteristics

  2022cites this paper
• Hydrothermal carbonization of hemp digestate: influence of operating parameters

  2022cites this paper
• Feasibility of Bio-Coal Production from Hydrothermal Carbonization (HTC) Technology Using Food Waste in Malaysia

  2022cites this paper
• Comparative study of pomelo‐peel‐derived hydrochar and torrefied poultry‐litter on coal fuel blends: Combustibility, synergy factor, and ash analysis

  2022cites this paper
• Energy and Element Fate of Hydrochar from Hydrothermal Carbonization of Dairy Manure Digestate

  2022influential citation
• Valorization of Brassica carinata biomass through conversion to hydrolysate and hydrochar

  2022influential citation
• Drying of Food Waste for Potential Use as Animal Feed

  2022cites this paper
• Processes, applications and legislative framework for carbonized anaerobic digestate: Opportunities and bottlenecks. A critical review

  2022cites this paper
• Integration of hydrothermal carbonization and aqueous phase reforming for energy recovery from sewage sludge

  2022cites this paper
• Combustion kinetics of hydrochar from cow-manure digestate via thermogravimetric analysis and peak deconvolution.

  2022cites this paper
• Food waste to bioenergy: current status and role in future circular economies in Indonesia

  2022cites this paper
• Physicochemical properties and combustion kinetics of food waste derived hydrochars

  2022cites this paper
• Improved energy recovery from food waste through hydrothermal carbonization and anaerobic digestion.

  2022cites this paper
• A critical review on the development stage of biorefinery systems towards the management of apple processing-derived waste

  2021cites this paper
• Enhancing biochar sorption properties through self-templating strategy and ultrasonic fore-modified pre-treatment: Characteristic, kinetic and mechanism studies.

  2021cites this paper
• Characterization of hydrochar and process water formed by hydrothermal carbonization of waste wood containing urea–formaldehyde resin

  2021cites this paper
• Upgrading fuel potentials of waste biomass via hydrothermal carbonization

  2021cites this paper
• Recent advances of thermochemical conversieon processes for biorefinery.

  2021cites this paper
• Hydrothermal Carbonization and Liquefaction: differences, progress, challenges, and opportunities.

  2021cites this paper
• Single-pot upgrading of run-of-mine coal and rice straw via Taguchi-optimized hydrothermal treatment: Fuel properties and synergistic effects

  2021cites this paper
• Hydrothermal carbonization of simulated food waste for recovery of fatty acids and nutrients.

  2021cites this paper
• Sustainable management and recycling of food waste anaerobic digestate: A review.

  2021cites this paper
• Conversion of residual biomass into valuable biofuels by co-hydrothermal carbonization for utilization in household pellet stoves

  2021cites this paper
• Minimizing hazardous impact of food waste in a circular economy - Advances in resource recovery through green strategies.

  2021cites this paper
• Biochemical and Thermochemical Routes of H 2 Production from Food Waste: A Comparative Review

  2021cites this paper
• Optimizing Flame Retardancy and Durability of Melamine-Formaldehyde/Solid-Urban-Waste Composite Panels

  2021cites this paper
• Valorization of Municipal Solid Waste using Hydrothermal Carbonization and Gasification: A review

  2020cites this paper
• Dark fermentation production of volatile fatty acids from glucose with biochar amended biological consortium.

  2020cites this paper
• An innovative IoT-oriented prototype platform for the management and valorisation of the organic fraction of municipal solid waste

  2020cites this paper
• Hydrothermal carbonization of food waste after oil extraction pre-treatment: Study on hydrochar fuel characteristics, combustion behavior, and removal behavior of sodium and potassium.

  2020cites this paper
• The effect of aqueous phase recirculation on hydrothermal liquefaction/carbonization of biomass: A review.

  2020cites this paper
• Assessment of supercritical water gasification of food waste under the background of waste sorting: Influences of plastic waste contents

  2020cites this paper
• Hydrochars as Emerging Biofuels: Recent Advances and Application of Artificial Neural Networks for the Prediction of Heating Values

  2020cites this paper
• Reutilisation of food wastes for generating fuels and value added products: A global review

  2020cites this paper
• Landfill leachate as an alternative moisture source for hydrothermal carbonization of municipal solid wastes to solid biofuels.

  2020cites this paper
• Steam gasification with torrefaction as pretreatment to enhance syngas production from mixed food waste

  2020cites this paper
• The valorization of the anaerobic digestate from the organic fractions of municipal solid waste: Challenges and perspectives.

  2020cites this paper
• Valorization of anaerobic digestion digestate: A prospect review.

  2020cites this paper
• Changes in global trends in food waste composting: Research challenges and opportunities.

  2019cites this paper
• Technical progress and perspective on the thermochemical conversion of kitchen waste and relevant applications: A comprehensive review

  year unknowncites this paper