@Article{jrm.2023.028438,
AUTHOR = {Hongqiong Zhang, Xu Wang, Zhaojing Qian, Buchun Si, Kai Jin, Tengfei Wang},
TITLE = {Effects of Biowaste-Derived Hydrochar on Anaerobic Digestion: Insights into Hydrochar Characteristics},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {11},
YEAR = {2023},
NUMBER = {10},
PAGES = {3647--3657},
URL = {http://www.techscience.com/jrm/v11n10/53769},
ISSN = {2164-6341},
ABSTRACT = {Hydrochar prepared with four typical biowastes, pine wood, food waste, digested sewage sludge, and Chlorella
were applied for the promotion of anaerobic digestion. The gas production and substrate composition were analyzed associated with the hydrochar characteristics. The results suggested that Chlorella hydrochar (C-C) showed
the highest cumulative yield of methane (approximately 345 mL) with high total organic carbon (TOC) removal
efficiency and low volatile fatty acids (VAFs) concentration. Especially, food waste hydrochar (F-C) showed a poor
effect on anaerobic digestion and aroused 1.4–1.6 g/L accumulation of VAFs, in which the toxic components may
account for the low efficiency. The C-C and sludge hydrochar (S-C) may develop direct interspecific electron
transport (DIET) to facilitate the generation of methane by both surface groups and conductivity of the body
structure, unlike pinewood hydrochar (P-C), which mainly depended on the aromatic matrix structure of hydrochar body. This work suggested that C-C can be the best candidate for the facilitation of anaerobic digestion, and
N-containing biowaste like algae and lignocellulose like pine wood may establish different DIET pathways based
on the physicochemical characteristics of hydrochar.},
DOI = {10.32604/jrm.2023.028438}
}