Hydrochar Prepared from Aquatic and Terrestrial Biomass: Comparative Analysis of Characteristics and Applications

Authors

  • Libing Gao School of Environment and Resources, Taiyuan University of Science and Technology, 66 Wa-liu Road, Taiyuan, 030024, Shanxi, China https://orcid.org/0000-0002-8120-9935
  • Zifei Wang School of Environment and Resources, Taiyuan University of Science and Technology, 66 Wa-liu Road, Taiyuan, 030024, Shanxi, China
  • Jinyu Guo School of Pharmacy, Youjiang Medical University for Nationalities, Baise, Guangxi 533000, PR China
  • Yifan Qiao Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
  • Shuai Wang School of Environment and Resources, Taiyuan University of Science and Technology, 66 Wa-liu Road, Taiyuan, 030024, Shanxi, China
  • Mengke Cui School of Environment and Resources, Taiyuan University of Science and Technology, 66 Wa-liu Road, Taiyuan, 030024, Shanxi, China
  • Xuan Zhang School of Environment and Resources, Taiyuan University of Science and Technology, 66 Wa-liu Road, Taiyuan, 030024, Shanxi, China
  • Yuhan Guo School of Environment and Resources, Taiyuan University of Science and Technology, 66 Wa-liu Road, Taiyuan, 030024, Shanxi, China
  • Jianghao Wang School of Environment and Resources, Taiyuan University of Science and Technology, 66 Wa-liu Road, Taiyuan, 030024, Shanxi, China
  • Tong Zhang School of Environment and Resources, Taiyuan University of Science and Technology, 66 Wa-liu Road, Taiyuan, 030024, Shanxi, China
  • Kenji Ogino Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
  • Bing Wang School of Environment and Resources, Taiyuan University of Science and Technology, 66 Wa-liu Road, Taiyuan, 030024, Shanxi, China https://orcid.org/0000-0002-8872-9634

Keywords:

Hydrochar, Biomass, Waste utilization, Physical and chemical properties

Abstract

The benefits of hydrothermal carbonization (HTC) for carbon sequestration, energy, and soil remediation are widely recognized. Up to the present, there has been much research on hydrochar from terrestrial biomass residues, but there is little research on hydrochar based on aquatic plants. In this study, the physical and chemical properties of water hyacinth (representative of aquatic plants) and corn stalk (representative of terrestrial plants) were systematically analyzed under the condition of single hydrothermal carbonization. The results showed that water hyacinth-based hydrochar (WHHC) had well-developed pores, rich functional groups, and high nitrogen content. Among them, the nitrogen content of WHHC was 3.83%, which was more than three times the nitrogen content of corn straw-based hydrothermal carbon (CSHC) (1.11%), and the number of micropores, mesoporous pores, and macropores were also higher than that of CSHC. These differences were attributed to the contrasting growing environments and main components of water hyacinth and corn stalk. These differences revealed their potential application directions: WHHC can be used as an adsorbent and soil amendment; CSHC is more suitable as a supplementary energy source because of its higher carbon content and stability.

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Published

2025-04-04

How to Cite

Gao, L., Wang, Z., Guo, J., Qiao, Y., Wang, S., Cui, M., … Wang, B. (2025). Hydrochar Prepared from Aquatic and Terrestrial Biomass: Comparative Analysis of Characteristics and Applications . BioResources, 20(2), 3838–3847. Retrieved from https://ojs.bioresources.com/index.php/BRJ/article/view/24390

Issue

Vol. 20 No. 2 (2025)

Section

Research Article or Brief Communication