Energy Potential of Agri Residual Biomass in Southeast Asia with the Focus on Vietnam
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| 2. Materials and Methods
2.1. Secondary Data Analysis Two types of data sources were used in this study. The main sources of secondary data were available scientific articles, Vietnamese governmental reports, statistical yearbooks, overviews and data from FAO. Secondary data sources contributed to the description and mapping of the current situation and possible energy applications of the studied residual biomass; it showed gaps in available information and served as input data for calculating the energy potential together with the results of the laboratory work. 2.2. Origin of Materials and Preparation of Analysis Samples Based on the secondary data analysis regarding the biomass availability, the top three kinds of residual biomass materials (namely rice husks, rice straw and sugarcane bagasse) were collected in Vietnam during the 2019 spring season. The rice husk is the agroindustrial residue characterized as the outermost layer of the paddy grain that is removed from the rice grains during the milling process [ 15 , 16 ]. Rice straw is described as an inedible fibrous plant material part left after the paddy rice harvesting process [ 17 ]. Both materials, rice husks and rice straw were gathered in the rural district Giao Thủy, located in the Nam Ðịnh Province of the Red River Delta region. Sugarcane bagasse is the residue of processes leading to the extraction of sugarcane juice [ 18 ]. Sugarcane bagasse (from manual juice extraction) was collected on the local market of Bát Tràng village in Gia Lâm district of Hanoi. For better visualization, the detailed Vietnam provinces’ map is presented in Figure 2 . Agronomy 2021, 11, x FOR PEER REVIEW 3 of 20 Energy utilization of residual biomass seems to be an optimal solution for sustainable waste management and enhancing the country’s energy security via local and renewable sources. Thus, this study’s main objective was to investigate the energy potential as well as production quantities and fuel properties of the foremost biomass residues in Vietnam. tải về 1.15 Mb. Chia sẻ với bạn bè của bạn:
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