id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
brj-22155	Ren, Jianguo; Zhang, Chao; Wang, Junli; Cai, Jing	Optimization of Weathered Coal Biodegradation by Penicillium aculeatum 13-2-1 and UV-visible Spectral Characteristics of Active Degraded Products	2023	19	.pdf	application/pdf	8613	500	59	To find the optimal condition for the biodegradation of weathered coal and obtain the spectral characteristics of active degraded products of coal, the bioactivation of humic acid in weathered coal is essential. The variance analysis of orthogonal tests illustrated that the three factors had little effects on biodegradation of weathered coal, but the weathered coal significantly negatively affected the contents of soluble humic acids in liquid coal products.	cache/brj-22155.pdf	txt/brj-22155.txt