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    Rights statement: This is the author’s version of a work that was accepted for publication in Science of the Total Environment. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Science of the Total Environment, 786, 2021 DOI: 10.1016/j.scitotenv.2021.147381

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    Embargo ends: 27/04/22

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Co-hydrothermal carbonization of swine and chicken manure: Influence of cross-interaction on hydrochar and liquid characteristics

Research output: Contribution to journalJournal articlepeer-review

E-pub ahead of print
  • Q. Li
  • S. Zhang
  • M. Gholizadeh
  • X. Hu
  • X. Yuan
  • B. Sarkar
  • M. Vithanage
  • O. Mašek
  • Y.S. Ok
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Article number147381
<mark>Journal publication date</mark>10/09/2021
<mark>Journal</mark>Science of the Total Environment
Volume786
Number of pages13
Publication StatusE-pub ahead of print
Early online date27/04/21
<mark>Original language</mark>English

Abstract

Swine and chicken manures are abundant solid wastes that can be converted into carbonaceous materials through hydrothermal carbonization (HTC). Owing to their unique biochemical compositions, co-HTC of these two types of manures may have significant implications for the generated products. We investigated the co-HTC of swine manure and chicken manure to understand the influence of the interaction between contrasting manures on the properties of the derived products. The results indicated that co-HTC treatment enhanced the formation of solid product and improved the C and N contents, heating value, and energy yield of the resulting hydrochar. Regarding the ignition temperature and comprehensive combustion index, the combustion properties of the hydrochar were enhanced owing to the mutual effect of the HTC intermediates. Additionally, the interaction of the intermediates significantly impacted the transfer of nitrogenous species and generation of organic acids and organic polymers with fused-ring structures. Therefore, co-HTC processing of animal manures could potentially provide a sustainable pathway for the conversion of animal waste into solid products with improved characteristics compared to those produced by treating the two feedstocks separately.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Science of the Total Environment. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Science of the Total Environment, 786, 2021 DOI: 10.1016/j.scitotenv.2021.147381