Estimation of Biogas Production and the Emission Savings from Anaerobic Digestion of Fruit-based Agro-industrial Waste and Agricultural crops residues

Abstract

In this study, the biomethane potential of five agricultural crop residues (ACR's) (rice straw, vegetable waste, maize straw, coffee husk and oil palm empty fruit bunches (OPEFB)) and five Fruit-Based Agro-Industrial Wastes (FBAIW's) (jackfruit straw, banana, orange, apple and pineapple peel waste) were evaluated. The carbon and energy balance for each waste was also theoretically modelled for two biogas conversion scenarios (AD with CHP or biogas upgrading). A standard biomethane potential test (BMP) was operated over 30 days at 37 o C. Specific methane potential (SMP) of FBAIW's was generally higher than that of the ACR's, except for vegetable waste. Vegetable waste was identified as having the highest SMP (0.420 m 3 /kgVS added ). With respect to ACRs, OPEFB and coffee husk had the lowest SMP values of 0.185 and 0.181 m 3 /kgVS added , respectively. This was attributed to the higher lignin content of these wastes which can impact on biodegradation and subsequent biogas production. Theoretical estimations showed a positive energy balance for all wastes tested. In terms of exportable energy, apple peel waste was shown to have the highest exportable energy potential. The FBAIW's also exhibited greater emissions savings than ACR's (with the exception of vegetable waste). This study concluded that there is good potential to valorise these wastes using AD and that this could address the challenges of waste management and clean energy provision in Indonesia.

Comparative Study of Biogas Production from Jackfruit Waste, Banana Peels, and Pineapple Peels Co-Digested with Cow Dung

“…Both studies did not consider the varieties of pineapples, therefore, difference in volatiles solids could have resulted from the varieties used. Suhartini et al [41] conducted a study about the biomethane potential of five agricultural residues that reported 84.83% moisture content and 92.7% volatile solids for jackfruit waste and noted that for any given wet weight of feedstock, the VS content is usually positively correlated to biogas production.…”

Opportunities and Potential of Bioenergy Development in Agroindustrial Complexes of Kazakhstan

“…The process also enables recirculation of the organic and green waste from farms. It also enables better waste management process at local and industrial levels (Suhartini et al, 2020).…”

Enhancing anaerobic digestion of wild seaweed Gracilaria verrucosa by co-digestion with tofu dregs and washing pre-treatment

“…Therefore, further valorisation of agro-industrial waste is urgently needed [10,11]. Various studies have reported the valorisation pathways of agro-industrial waste to bioenergy, such as biogas from fruit-based agro-industrial waste [12]; bioethanol from apple pomace [13] or from candy agro-industry wastes (i.e. raw residual of coconut milk, pineapple juice, and tuna juice) [14]; biodiesel from sugar beet agro-industrial waste [15]; biohydrogen from molasses, vinasse and bagasse [16]; and bio-pellet production from cacao agro-industrial waste (i.e.…”