Biogas production from most agricultural organic wastes by anaerobic digestion in Taiwan

Abstract

Agricultural organic wastes (AOW) have the potential to provide bioenergy particularly found in biogas by anaerobic digestion (AD). In this study, the biogas production (BP) of AOW was obtained by batch AD with anaerobic digesters (500 mL) at 35°C incubator. The results showed that BP values in terms of volatile solids (VS) from rice husk, rice straw, flower residues, fruit and vegetable residues, wasted oyster shell residue (WOSR), fishery residues, livestock and poultry manures, livestock and poultry slaughter wastes (LPSW), and eight equally mixed wastes (EEMW) were 84.03, 193.36, 153.32, 76.27, 150.48, 63.26, 169.63, 615.74, and 172.83 mL/g VS, respectively. LPSW showed the highest μm of 16.99 mL/g VS‐d, the highest BP of 615.74 mL/g VS and the highest bioconversion efficiency of 65.98% compared to the other organic wastes. BP from the most AOW in Taiwan by AD was estimated to be 768,567,753 (743,522,223, excluding WOSR) m3/year. The annual BP of 768,567,753 m3/year of the eight total major AOW by AD was lower (∼20.11%) than 961,989,781 m3/year of the EEMW by anaerobic co‐digestion. Result also showed that modified Gompertz equation was suitable to describe BP accumulation and BP rate.

Exploring the Biochemical Methane Potential of Wholesale Market Waste from Jordan and Tunisia for a Future Scale-Up of Anaerobic Digestion in Amman and Sfax

“…Therefore, the implementation of new sustainable bio-based technologies on [11] slaughterhouse wastes [12], other agricultural wastes [13] and sewage sludge [14]. Studies focusing on the mono-digestion of FVW are fewer and usually do not consider the composition and the seasonal variability of this waste.…”

“…substrates, anaerobic digestion (AD) is still the most widely applied process, mainly due to its high efficiency, reliability, and operational flexibility [13]. Up to now, AD FVW mixtures, which varied in the composition of fruits and vegetables, 1 macronutrients (i.e., protein, carbohydrates, and lipids), and lignocelluloses (i.e., 2 cellulose, hemicellulose, and lignin).…”

Effect of Alkali-NaOH Pretreatment on Methane Production from Anaerobic Digestion of Date Palm Waste

“…The AD process produces two main products, the first one is biogas, which contains mostly methane and CO 2 (Beniche et al, 2020), and the second one is digestate which contains a large quantity of organic matter that cannot be fully degraded and can be used as a fertilizer in agriculture use (Juanga-Labayen et al, 2021). The biogas is considered as a renewable energy which does not produce air pollutants, nuclear waste or ashes (Lo et al, 2019). AD can help reduce the fires in the oasis each year that causes great damage to date palm farms.…”

Comparison of Potential Environmental Impacts and Waste-to-Energy Efficiency for Kitchen Waste Treatment Scenarios in Central Taiwan

“…Different studies have been implemented due to the large amount produced and kitchen waste's urgent management needs in Taiwan. Lo et al [31] have researched the potential to provide bioenergy in biogas production from most agricultural organic wastes by anaerobic digestion in Taiwan. Tsai [32] discussed the current status of turning food waste into value-added resources in Taiwan.…”