An Overview of the Thermochemical Valorization of Sewage Sludge: Principles and Current Challenges

Energies, Journal Year: 2024, Volume and Issue: 17(10), P. 2417 - 2417

Published: May 17, 2024

With the increase in world population and economic activity, production of sewage sludge has grown, its management become an environmental problem. The most traditional method managing is to dispose it landfills on farmland. One way valorize use thermochemical conversion processes produce added-value products such as biochar, biofuels, renewable gases. However, due high moisture content, using pyrolysis gasification involves multiple pre-treatment material drying. Hydrothermal usually require pressures, which pose many challenges their application a large scale. In this work, advantages disadvantages different existing for recovery were analyzed, well resulting industrial challenges. A SWOT analysis was carried out assess terms technical feasibility, viability, broader market considerations.

Language: Английский

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Sustainable hydrothermal co-carbonization of residues from the vegetable oil industry and sewage sludge: Hydrochar production and liquid fraction valorisation

Energy, Journal Year: 2024, Volume and Issue: 307, P. 132760 - 132760

Published: Aug. 6, 2024

In this study, the hydrothermal co-carbonization (co-HTC) of residues from vegetable oil industry (pumpkin cake – PC, hemp HC) and sewage sludge (SS) was investigated for first time. The co-HTC performed at 250 °C a treatment time 5 h. effects mass ratio feedstocks (1:1, 1:3 3:1) on properties HTC products were using various analytical methods (NMR, XRD, 3D-EEM, FTIR, etc.). SS with cakes resulted in improved fuel hydrochar an increase C content 36.9 to 53.7 wt%, higher heating value (HHV) 14.8 23.6 MJ/kg. combination HC gave hydrochars HHV than PC. yield varied range 39.4–55.3 wt%. NMR analysis revealed proportion aliphatic (∼60 %) aromatic compounds (∼35 hydrochars, as well high orthophosphate unsaturated fatty acids. liquid fractions rich nutrients organic compounds, but toxic aquatic organisms. germination test plant species.

Language: Английский

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Chemometrics to connect feedstock quality, process settings and calorific value of hydrochar through infrared spectra

Fuel Processing Technology, Journal Year: 2025, Volume and Issue: 271, P. 108201 - 108201

Published: March 5, 2025

Language: Английский

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Assessment of product composition and energy output of sewage sludge gasification by simulation model

Energy, Journal Year: 2025, Volume and Issue: unknown, P. 135476 - 135476

Published: March 1, 2025

Language: Английский

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Torrefaction and hydrothermal carbonization of waste from the paper industry: Effects of atmosphere choice and pretreatment with natural acidic reagent on fuel properties

Thermal Science and Engineering Progress, Journal Year: 2024, Volume and Issue: 51, P. 102623 - 102623

Published: May 6, 2024

Language: Английский

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Co-Hydrothermal Carbonization of Sewage Sludge and Waste Pickling Acid to Produce a Novel Adsorbent for Hydrogen Sulfide Removal From Biogas

Arabian Journal for Science and Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: May 29, 2024

Language: Английский

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Valorization of cheese-making residues in biorefineries using different combinations of dark fermentation, hydrothermal carbonization and anaerobic digestion

Energy, Journal Year: 2024, Volume and Issue: 305, P. 132327 - 132327

Published: July 6, 2024

Dark fermentation (DF), hydrothermal carbonization (HTC) and anaerobic digestion (AD) are applied, in different combinations, to cheese whey (CW), which is the liquid effluent from precipitation removal of milk casein during cheese-making process. The aim novelty this research investigate production various biofuels (H2-rich gas, hydrochar biogas) cascade, according waste biorefinery concept. simplest case direct AD CW. second investigated possibility preliminary HTC CW, producing hydrochar, followed by process water separated filtration. third based on DF fermentate (F) DF. final F, then water. Accordingly, physical chemical properties resulting (PW), biomethane potentials waters studied determine energy carbon balances all variants. In brief, first variant, believed be most efficient method.

Language: Английский

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Advancing sustainable agriculture: Converting dairy wastes into amino acid fertilizers

Sustainable Chemistry and Pharmacy, Journal Year: 2024, Volume and Issue: 42, P. 101782 - 101782

Published: Oct. 4, 2024

Language: Английский

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Influence of hydrothermal carbonized sewage sludge on coal water slurry performance

Frontiers of Chemical Science and Engineering, Journal Year: 2024, Volume and Issue: 19(1)

Published: Sept. 27, 2024

Language: Английский

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Enhancing Energy Yield and Reducing Environmental Impact through Co-hydrothermal Carbonization of Undehydrated Sewage Sludge and Fungus Bran

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 114051 - 114051

Published: Sept. 3, 2024

Language: Английский

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