Characteristics of Hydrochar and Liquid Products Obtained by Hydrothermal Carbonization and Wet Torrefaction of Poultry Litter in Mixture with Wood Sawdust

Poultry farms with floor-standing poultry generate large amounts of poultry litter waste. The direct application of this waste as an organic fertilizer does not ensure sustainable and cost-efficient utilization of all waste fractions, and can also be linked to environmental hazards. Therefore, the d...

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Autores principales: Rafail Isemin, Natalia Muratova, Sergey Kuzmin, Dmitry Klimov, Vadim Kokh-Tatarenko, Alexander Mikhalev, Oleg Milovanov, Antoine Dalibard, Olayinka Ahmed Ibitowa, Manuel Nowotny, Mathieu Brulé, Fouzi Tabet, Bernd Rogge
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spelling oai:doaj.org-article:162a5a8d1e654a3c936bf4d7ce5394de2021-11-25T18:52:11ZCharacteristics of Hydrochar and Liquid Products Obtained by Hydrothermal Carbonization and Wet Torrefaction of Poultry Litter in Mixture with Wood Sawdust10.3390/pr91120822227-9717https://doaj.org/article/162a5a8d1e654a3c936bf4d7ce5394de2021-11-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/2082https://doaj.org/toc/2227-9717Poultry farms with floor-standing poultry generate large amounts of poultry litter waste. The direct application of this waste as an organic fertilizer does not ensure sustainable and cost-efficient utilization of all waste fractions, and can also be linked to environmental hazards. Therefore, the development of new technologies is required for processing poultry litter into a safe product with higher added value. In this work, the characteristics of activated carbon derived from hydrochar, along with the liquid products obtained from hydrothermal carbonization (HTC) and the wet torrefaction (WT) of poultry litter, were investigated. Poultry litter (PL) was applied in a mixture with sawdust (SD) in the following ratios: 1:0 (PL/SD 1:0), 1:1 (PL/SD 1:1), 1:2 (PL/SD 1:2), and 2:1 (PL/SD 2:1). WT processing took place in an innovative fluidized bed system in a superheated steam medium with low overpressure (less than 0.07 MPa) at 300 °C and 350 °C for 30–45 min. Conventional HTC processing was performed in a water medium at 220 °C for 1–4 h. The hydrochar produced in the experiments was activated with steam for 1 h at 450–750 °C. The porosity characteristics of activated hydrochar were measured, including pore size, pore volume, and specific surface area, in view of potential industrial applications as an adsorbent. Additionally, the contents of 5-hydroxymethylfurfural (HMF), as high-value product, were determined in the liquid products obtained from HTC processing, as well as in the condensate obtained after WT processing. Specific surface areas of the activated hydrochars may still be too low for application as adsorbent material. Hence, its use as a biofertilizer and soil improver should be preferred. Interestingly, the liquid fraction obtained from the innovative WT process displayed a significantly higher 5-HMF content compared to the conventional HTC process.Rafail IseminNatalia MuratovaSergey KuzminDmitry KlimovVadim Kokh-TatarenkoAlexander MikhalevOleg MilovanovAntoine DalibardOlayinka Ahmed IbitowaManuel NowotnyMathieu BruléFouzi TabetBernd RoggeMDPI AGarticlehydrothermal carbonizationsteam torrefactionbiomasswaste treatmentactivated carbonfluidized bedChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 2082, p 2082 (2021)
institution DOAJ
collection DOAJ
language EN
topic hydrothermal carbonization
steam torrefaction
biomass
waste treatment
activated carbon
fluidized bed
Chemical technology
TP1-1185
Chemistry
QD1-999
spellingShingle hydrothermal carbonization
steam torrefaction
biomass
waste treatment
activated carbon
fluidized bed
Chemical technology
TP1-1185
Chemistry
QD1-999
Rafail Isemin
Natalia Muratova
Sergey Kuzmin
Dmitry Klimov
Vadim Kokh-Tatarenko
Alexander Mikhalev
Oleg Milovanov
Antoine Dalibard
Olayinka Ahmed Ibitowa
Manuel Nowotny
Mathieu Brulé
Fouzi Tabet
Bernd Rogge
Characteristics of Hydrochar and Liquid Products Obtained by Hydrothermal Carbonization and Wet Torrefaction of Poultry Litter in Mixture with Wood Sawdust
description Poultry farms with floor-standing poultry generate large amounts of poultry litter waste. The direct application of this waste as an organic fertilizer does not ensure sustainable and cost-efficient utilization of all waste fractions, and can also be linked to environmental hazards. Therefore, the development of new technologies is required for processing poultry litter into a safe product with higher added value. In this work, the characteristics of activated carbon derived from hydrochar, along with the liquid products obtained from hydrothermal carbonization (HTC) and the wet torrefaction (WT) of poultry litter, were investigated. Poultry litter (PL) was applied in a mixture with sawdust (SD) in the following ratios: 1:0 (PL/SD 1:0), 1:1 (PL/SD 1:1), 1:2 (PL/SD 1:2), and 2:1 (PL/SD 2:1). WT processing took place in an innovative fluidized bed system in a superheated steam medium with low overpressure (less than 0.07 MPa) at 300 °C and 350 °C for 30–45 min. Conventional HTC processing was performed in a water medium at 220 °C for 1–4 h. The hydrochar produced in the experiments was activated with steam for 1 h at 450–750 °C. The porosity characteristics of activated hydrochar were measured, including pore size, pore volume, and specific surface area, in view of potential industrial applications as an adsorbent. Additionally, the contents of 5-hydroxymethylfurfural (HMF), as high-value product, were determined in the liquid products obtained from HTC processing, as well as in the condensate obtained after WT processing. Specific surface areas of the activated hydrochars may still be too low for application as adsorbent material. Hence, its use as a biofertilizer and soil improver should be preferred. Interestingly, the liquid fraction obtained from the innovative WT process displayed a significantly higher 5-HMF content compared to the conventional HTC process.
format article
author Rafail Isemin
Natalia Muratova
Sergey Kuzmin
Dmitry Klimov
Vadim Kokh-Tatarenko
Alexander Mikhalev
Oleg Milovanov
Antoine Dalibard
Olayinka Ahmed Ibitowa
Manuel Nowotny
Mathieu Brulé
Fouzi Tabet
Bernd Rogge
author_facet Rafail Isemin
Natalia Muratova
Sergey Kuzmin
Dmitry Klimov
Vadim Kokh-Tatarenko
Alexander Mikhalev
Oleg Milovanov
Antoine Dalibard
Olayinka Ahmed Ibitowa
Manuel Nowotny
Mathieu Brulé
Fouzi Tabet
Bernd Rogge
author_sort Rafail Isemin
title Characteristics of Hydrochar and Liquid Products Obtained by Hydrothermal Carbonization and Wet Torrefaction of Poultry Litter in Mixture with Wood Sawdust
title_short Characteristics of Hydrochar and Liquid Products Obtained by Hydrothermal Carbonization and Wet Torrefaction of Poultry Litter in Mixture with Wood Sawdust
title_full Characteristics of Hydrochar and Liquid Products Obtained by Hydrothermal Carbonization and Wet Torrefaction of Poultry Litter in Mixture with Wood Sawdust
title_fullStr Characteristics of Hydrochar and Liquid Products Obtained by Hydrothermal Carbonization and Wet Torrefaction of Poultry Litter in Mixture with Wood Sawdust
title_full_unstemmed Characteristics of Hydrochar and Liquid Products Obtained by Hydrothermal Carbonization and Wet Torrefaction of Poultry Litter in Mixture with Wood Sawdust
title_sort characteristics of hydrochar and liquid products obtained by hydrothermal carbonization and wet torrefaction of poultry litter in mixture with wood sawdust
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/162a5a8d1e654a3c936bf4d7ce5394de
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