Effects of Fe 3+ on Hydrothermal Humification of Agricultural Biomass.

Autor: Peng XX; School of Water Conservancy and Civil Engineering Department, Northeast Agricultural University, Harbin, 150030, China.; Heilongjiang Provincial International Joint Laboratory of Smart Soil, Harbin, 150030, China., Gai S; School of Water Conservancy and Civil Engineering Department, Northeast Agricultural University, Harbin, 150030, China.; Heilongjiang Provincial International Joint Laboratory of Smart Soil, Harbin, 150030, China., Liu Z; School of Water Conservancy and Civil Engineering Department, Northeast Agricultural University, Harbin, 150030, China.; Heilongjiang Provincial International Joint Laboratory of Smart Soil, Harbin, 150030, China., Cheng K; Heilongjiang Provincial International Joint Laboratory of Smart Soil, Harbin, 150030, China.; College of Engineering, Northeast Agricultural University, Harbin, 150030, China., Yang F; School of Water Conservancy and Civil Engineering Department, Northeast Agricultural University, Harbin, 150030, China.; Heilongjiang Provincial International Joint Laboratory of Smart Soil, Harbin, 150030, China.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2024 Feb 22; Vol. 17 (4), pp. e202301227. Date of Electronic Publication: 2023 Dec 18.
DOI: 10.1002/cssc.202301227
Abstrakt: Hydrothermal humification technology for the preparation of artificial humic matters provides a new strategy, greatly promoting the natural maturation process. Iron, as a common metal, is widely used in the conversion of waste biomass; however, the influence of Fe 3+ on hydrothermal humification remains unknown. In this study, FeCl 3 is used to catalyze the hydrothermal humification of corn straw, and the influence of Fe 3+ on the hydrothermal humification is explored by a series of characterization techniques. Results show that Fe 3+ as the catalyst can promote the decomposition of corn straw, shorten the reaction time from 24 h to 6 h, and increase the yield from 6.77 % to 14.08 %. However, artificial humic acid (A-HA) obtained from Fe 3+ -catalysis hydrothermal humification contains more unstable carbon and low amount of aromatics, resulting in a significantly decreased stability of the artificial humic acid. These results provide theoretical guidance for regulating the structure and properties of artificial humic acid to meet various maintenance needs.
(© 2023 Wiley-VCH GmbH.)
Databáze: MEDLINE
Externí odkaz: