Biogas From Cassava Peels Waste

Abstract

<jats:p xml:lang="en">The increasing growth of cassava agro-industries in Nigeria has led to the enormous generation of cassava peels waste. The feasibility of generating biogas and biofertilizer for both domestic and agricultural applications from cassava peels waste inoculated with cow dung was investigated. Fresh and stale cassava peels were used in the study. Three pretreatment chemicals such as sodium hydroxide (NaOH), calcium hydroxide (Ca(OH)2 and ammonium chloride (NH4Cl) buffer solutions were used in pretreating the cassava peels and cow dung slurry. Six batch anaerobic biodigesters of 10-litre capacity each were used in this study for 40 days retention period. The pH, temperature, and volumes of biogas and methane produced were monitored and recorded daily. The fertilizer qualities (total solids, volatile solids, % phosphorus, % nitrogen, etc.) of the digester slurry and the digester sludge after 40 days digestion were determined using official methods of analysis of Association of Official Analytical Chemists (AOAC). The results showed that the amount of biogas generated is 2540 cm3/day. The stale cassava peels and cow dung slurry and the use of NH4Cl pretreatment chemical gave the best biogas production and methane yield of 104,961cm3 and 62.3% respectively. The digester sludge from the anaerobic digestion of cassava peels and cow dung showed and demonstrated good biofertilizer qualities.</jats:p>

Cassava (Manihot esculenta) dual use for food and bioenergy: A review

“…Previously this method was also used for ethanol production from cassava pulp using engineered yeast S. cerevisiae directly displaying and co-displaying starch and cellulose degrading enzymes (Apiwatanapiwat et al, 2011;Kosugi et al, 2009). Recently, biogas derived from pretreated cassava peel fermentation produced methane yield of 62.3% (Aisien & Aisien, 2020). Cassava waste pulp was used as a substrate to produce biogas with significant amount of biohydrogen (18.69 ± 1.71%) concentration (Jaro et al, 2021).…”

Eco-innovation assessment of biodigesters technology: an application in cassava processing industries in the south of Brazil, Parana state

“…The present research chose as a field of study the starch plants in the State of Paraná, where an eco-innovation based on biodigester technology was implemented. Nigeria, the world's largest producer of cassava, has used biodigesters to generate biogas from waste from its processing (Mama and Agunwamba 2018;Aisien and Aisien 2020). Paraná is the second largest producer of cassava in Brazil.…”

Prediction of Biogas Yield from Codigestion of Lignocellulosic Biomass Using Adaptive Neuro-Fuzzy Inference System (ANFIS) Model

“…Te prominent energy sources are fossil fuels such as petroleum, diesel, kerosene, and liquefed natural gas, among others [1]. Te application of fossil fuels is accompanied by various environmental pollution, such as the greenhouse gas efect, depletion of the ozone layer, ecological challenges, and climate disturbance, among others [2,3]. It is in this connection that the need arises for other origins of alternative energy, which is capable of engineering sustainable development [4].…”