期刊
BIORESOURCE TECHNOLOGY
卷 172, 期 -, 页码 382-390出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.09.040
关键词
Bio-hydrogen production; Short-time hydrothermal pretreatment; Kitchen waste; Parallel factor analysis
资金
- National Natural Science Funds for Distinguished Young Scholar [51325804]
The enhancement of bio-hydrogen production from kitchen waste by a short-time hydrothermal pretreatment at different temperatures (i.e., 90 degrees C, 120 degrees C, 150 degrees C and 200 degrees C) was evaluated. The effects of temperature for the short-time hydrothermal pretreatment on kitchen waste protein conversion and dissolved organic matter characteristics were investigated in this study. A maximum bio-hydrogen yield of 81.27 mL/g VS was acquired at 200 degrees C by the short-time hydrothermal pretreatment during the anaerobic fermentative hydrogen production. Analysis of the dissolved organic matter composition showed that the protein-like peak dominated and that three fluorescent components were separated using fluorescence excitation-emission matrix spectra coupled with the parallel factor model. The maximum fluorescence intensities of protein-like components decomposed through the parallel factor analysis has a significant correlation with the raw protein concentration, showed by further correlation analysis. This directly impacted the hydrogen production ability. (C) 2014 Elsevier Ltd. All rights reserved.
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