1. To distinguish the primary characteristics of agro-waste biomass by the principal component analysis: An investigation in East China.
- Author
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Wang, Mimi, Cao, Weixing, Sun, Chen, Sun, Zixiang, Miao, Yang, Liu, Mengmeng, Zhang, Zhining, Xie, Yun, Wang, Xinxin, Hu, Shitao, Hu, Changwei, and Liu, Ronghou
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MULTIPLE correspondence analysis (Statistics) , *AGRICULTURAL wastes , *BIOMASS , *MANURES , *ANAEROBIC digestion , *LIGNOCELLULOSE - Abstract
• The basic characteristics of 152 agro-waste samples were analyzed and compared. • The distinguishing characteristic indicators were extracted by PCA. • For manures, organic nutrients mainly contribute to the first principal component. • For crops, lignocellulose mainly contributes to the first principal component. The different physicochemical properties of various agro-waste biomasses require a diversity of bioenergy utilization patterns. This study investigated the characteristics of a total of 74 manures and 78 crop straw samples from East China to identify the primary characteristic indicators that are essential to distinguish specific agro-wastes from others. Principal component analysis was applied, to discover critical features of biomass for the decision-making regarding the bioenergy production mode. The results identified the following four principal components of manures: "organic nutrients", "metals", "bioavailability of nutrients", and "toxic potential". For crop straws these were "lignocellulose/plant strength elements", "organics/inorganic metals for chlorophyll", "C/N", and "Na/Zn/fixed C". Considering the practical application significance of anaerobic digestion (AD) in the ecological civilization construction in rural China, the theoretical bio-methane potential was calculated based on the average values of different agro-biomasses from different areas. The results were 335.5–620.4 STP mL/g VS for manures and 434.0–540.3 STP mL/g VS for crop straws. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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