Behaviors and interactions during hydrothermal carbonization of protein, cellulose and lignin

Liu, Ziyun; Zhao, Lixin; Yao, Zonglu; Jia, Jixiu; Wang, Zihan; Liu, Zhidan

doi:10.1016/j.cej.2023.146373

Chemical Engineering Journal

2023

DOI: 10.1016/j.cej.2023.146373

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Behaviors and interactions during hydrothermal carbonization of protein, cellulose and lignin

Ziyun Liu,

Lixin Zhao,

Zonglu Yao

et al.

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2024

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Cited by 3 publications

References 68 publications

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Upgrading Hydrochar from Biomass Waste Using Physical Methods for Wastewater Pollutant Remediation: A Review

Liu,

Yao,

Zhang

et al. 2024

Curr Pollution Rep

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Upgrading Hydrochar from Biomass Waste Using Physical Methods for Wastewater Pollutant Remediation: A Review

Liu,

Yao,

Zhang

et al. 2024

Curr Pollution Rep

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Realizing Strength-Controllable and Selective Bactericidal Valorization of Hydrothermal Liquefaction Wastewater from Biowaste by Temperature and Feedstock Regulation

Wang,

Jiang,

M. Ali

et al. 2024

ACS EST Eng.

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Hydrothermal liquefaction can convert biowaste into biocrude oil, and its wastewater byproduct (HTL-WP) has been confirmed with a wide antimicrobial spectrum. Here, we engineered strength-controllable and selective bactericides from HTL-WP via regulation of feedstock and operational temperature. Results showed that HTL-WP from different feedstocks exhibited significantly selective inhibition on Escherichia coli and Staphylococcus aureus. Increasing operational temperature showed varied effects on antibacterial strength of HTL-WP from feedstocks with different components. Thereby, HTL feedstocks and temperatures can be used as switches to prepare strength-controllable and selective HTL-WPs, showing significantly selective inhibition on S. aureus with a maximum inhibition zone of 12.08 mm. Meanwhile, we conducted interaction analysis of HTL-WP characterization, component identification, and conversion path to reveal the changing mechanism of HTL-WP components. The mechanism of controllable intensity and selectivity was analyzed from two aspects: feedstock components and target strains. This study preliminarily establishes an approach for achieving targeted regulation of HTL-WP antibacterial intensity, which has significant reference value for the environmental-friendly reuse and functional targeted regulation of wastewater (liquid byproduct) from biowaste conversion in a specialized engineering-oriented perspective. It also provides novel utilization prospects for the valorization treatment of solid biowaste and promote the development and application of HTL technology.

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Influence of Hydrothermal Carbonization (HTC) Temperature on Hydrochar and Process Liquid for Poultry, Swine, and Dairy Manure

Devnath,

Khanal,

Shah

et al. 2024

Environments

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Hydrothermal carbonization (HTC) is a promising technology for wet manure treatment by converting animal manure into valuable fuels, materials, and chemicals. Among other HTC process parameters, the temperature influences HTC products the most. As various animal manures have different compositions, it is not certain how the HTC temperature influences the hydrochar and HTC process liquid. To evaluate the temperature’s effect on HTC, three different manures (poultry, swine, and dairy) were hydrothermally carbonized at three different temperatures (180, 220, and 260 °C), and solid and liquid products were characterized for their morphology, elemental compositions, and ions. The carbon contents of the hydrochar reached as high as 38.98 ± 0.36% and 40.05 ± 0.57% for poultry and swine manure, respectively, when these manures were treated at 260 °C. Ammonium showed an around 30% increase in poultry manure hydrochar with the increase in the HTC temperature. In contrast, in swine manure, it decreased by around 80%, and in dairy manure, the HTC temperature did not have any remarkable effect on the ammonium content. The process liquids from HTC of dairy manure at 220 °C showed the most balanced distribution of different ions, with 4970 ± 673 ppm of sodium, 4354 ± 437 ppm of ammonium, 2766 ± 417 ppm of potassium, 978 ± 82 ppm of magnesium, 953 ± 143 ppm of calcium, 3607 ± 16 ppm of chloride, and 39 ± 7 ppm of phosphate. These results emphasize the manure-specific effects of the HTC temperature on both solid and liquid products, indicating the need for optimized strategies to enhance HTC processes for various types of animal manures.

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Behaviors and interactions during hydrothermal carbonization of protein, cellulose and lignin

Cited by 3 publications

References 68 publications

Upgrading Hydrochar from Biomass Waste Using Physical Methods for Wastewater Pollutant Remediation: A Review

Upgrading Hydrochar from Biomass Waste Using Physical Methods for Wastewater Pollutant Remediation: A Review

Realizing Strength-Controllable and Selective Bactericidal Valorization of Hydrothermal Liquefaction Wastewater from Biowaste by Temperature and Feedstock Regulation

Influence of Hydrothermal Carbonization (HTC) Temperature on Hydrochar and Process Liquid for Poultry, Swine, and Dairy Manure

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