Abstract
Pruning fruit trees is improving their full health and harvest. Fruit tree pruning leaves waste to represent an abundant amount of organic materials, and these produced during a short period. The basic fuel properties of lignocellulosic biomass from orchards were evaluated on the following fruit tree leaves obtained from pruning operations. Biomass has become a vital source of renewable energy. Biogas is one the renewable energy which can be produced by anaerobic fermentation of biomass. In this study, mango, longan and lychee trees pruning leaves waste was utilized for biogas production. These leaves were examined on proximate analysis and ultimate analysis contents are considered as carbon (C), hydrogen (H), oxygen (O), nitrogen (N) and sulfur (S). In this study, pretreatment was performed using a sodium hydroxide solution (w/v) at different concentrations as above (1, 2, 3, and 4%). For the best feedstock screening, the theoretical biochemical methane potential was confirmed. Mango leaves biomethane content was higher compared to longan and lychee leaves. Finally, this biomass was suggested further large-scale studies. Digestate from biogas system is a highly valuable nutrient and rich fertilizer.
Highlights
Pruning is an important horticultural practice that generally promotes vegetative growth
The typical biogas composition ranges, irrespective of substrate used in the AD process
Each group contains several enzymes that are specialized in various substrates, such as different proteins
Summary
Pruning is an important horticultural practice that generally promotes vegetative growth. After pruning there are lot of wastes are produced Longan and lychee are one of the main economic subtropical fruits and most important fruit crop in Thailand. These trees are well distributed Asian countries including Thailand. Tree plantation produces large amount of wastes from its flowers and leaves which can be a source of biomass to produce biofuel or biogas. Studying the energy production potential of leaves are very important (Cybulska et al, 2015) This tree yields large amounts of pruning waste, as it has a high propagation capacity and very fast growth, for both the trunk and branches. Its location on the periphery of land plots facilitates the extraction and transportation of the residual biomass, as it can be done on the same locations as the pruning
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