title: Study on biomethane production and biodegradability of different leafy vegetables in anaerobic digestion.
abstract: Enormous amounts of vegetable residues are wasted annually, causing many environmental problems due to their high moisture and organic contents. In this study, the methane production potential of 20 kinds of typical leafy vegetable residues in China were explored using a unified method. A connection between the biochemical components and the methane yields of these vegetables was well established which could be used to predict biogas performance in practice. A high volatile solid/total solid (VS/TS) ratio and hemicellulose content exhibited a positive impact on the biogas yield while lignin had a negative impact. In addition, three kinetic models were used to describe the methane production process of these agro-wastes. The systematic comparison of the methane production potentials of these leafy vegetables shown in this study will not only serve as a reference for basic research on anaerobic digestion but also provide useful data and information for agro-industrial applications of vegetable residues in future work.
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, 505 Zonghe Building, 15 North 3rd Ring East Road, Beijing, 100029, China.
authors.forename: Hu
authors.initials: H
authors.lastname: Yan
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, 505 Zonghe Building, 15 North 3rd Ring East Road, Beijing, 100029, China.
authors.forename: Chen
authors.initials: C
authors.lastname: Zhao
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, 505 Zonghe Building, 15 North 3rd Ring East Road, Beijing, 100029, China.
authors.forename: Jiafu
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, 505 Zonghe Building, 15 North 3rd Ring East Road, Beijing, 100029, China.|Department of Biological and Agricultural Engineering, University of California, Davis, CA, 95616, USA.
authors.forename: Ruihong
authors.initials: R
authors.lastname: Zhang
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, 505 Zonghe Building, 15 North 3rd Ring East Road, Beijing, 100029, China.
authors.forename: Chunyu
authors.initials: C
authors.lastname: Xue
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, 505 Zonghe Building, 15 North 3rd Ring East Road, Beijing, 100029, China. gqliu@mail.buct.edu.cn.
authors.forename: Guangqing
authors.initials: G
authors.lastname: Liu
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, 505 Zonghe Building, 15 North 3rd Ring East Road, Beijing, 100029, China. chenchang@mail.buct.edu.cn.|College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China. chenchang@mail.buct.edu.cn.
authors.forename: Chang
authors.initials: C
authors.lastname: Chen
keywords: Anaerobic digestion; Composition; Correlation; Kinetic analysis; Leafy vegetable