Biogas Production from Sugarcane Waste: Assessment on Kinetic Challenges for Process Designing

Abstract

Biogas production from sugarcane waste has large potential for energy generation, however, to enable the optimization of the anaerobic digestion (AD) process each substrate characteristic should be carefully evaluated. In this study, the kinetic challenges for biogas production from different types of sugarcane waste were assessed. Samples of vinasse, filter cake, bagasse, and straw were analyzed in terms of total and volatile solids, chemical oxygen demand, macronutrients, trace elements, and nutritional value. Biochemical methane potential assays were performed to evaluate the energy potential of the substrates according to different types of sugarcane plants. Methane yields varied considerably (5–181 Nm3·tonFM−1), mainly due to the different substrate characteristics and sugar and/or ethanol production processes. Therefore, for the optimization of AD on a large-scale, continuous stirred-tank reactor with long hydraulic retention times (>35 days) should be used for biogas production from bagasse and straw, coupled with pre-treatment process to enhance the degradation of the fibrous carbohydrates. Biomass immobilization systems are recommended in case vinasse is used as substrate, due to its low solid content, while filter cake could complement the biogas production from vinasse during the sugarcane offseason, providing a higher utilization of the biogas system during the entire year.

Potential of biogas production from biomass and waste materials in the Small Island Developing State of Mauritius

“…As opposed, food crops are [85]. b CH 4 yield obtained from Janke et al [86] and corrected to room temperature (20°C) and atmospheric pressure using ideal gas law. cultivated for food production and consumption.…”

Análise Do Potencial De Geração De Biogás a Partir Da Biodigestão Anaeróbia Da Vinhaça E Bagaço De Cana

“…Porém, a codigestão da vinhaça com resíduos ricos em lignina e celulose, como é o caso do bagaço, pode acarretar na produção em excesso de ácido sulfídrico (H2S) (JANKE et al, 2015). Segundo Salomon (2007), o H2S, além de ser perigoso ao ambiente por apresentar características tóxicas e corrosivas, pode inibir o processo de biodigestão anaeróbia.…”

Biochemical, morphological, and yield responses of lady's finger plants to varying ratios of palm oil mill waste (decanter cake) application as a bio-fertilizer

“…Generally, the physiological processes by which microorganisms adapt to the new environment or substrates dictates the length of the lag phase (Rolfe et al 2012). Non-fiber carbohydrates have been found easily accessible to microbial degradation (Janke et al 2015) with short lag phase whereas substrates with increased fiber content such as the cellulose fed to R2 were reported to exhibits increased lag phase (Nielfa et al 2015). Moreover, the duration of the lag phase is also related to the initial buffer capacity of the fermentation liquor (Mao et al 2015).…”

“…Analogously, adaptation and enrichment of mixed anaerobic culture could be used to develop and intensify the lignocellulose (cellulose and hemicellulose) degrading activity in the culture. Although some studies reported biomethane production from lignocellulosic substrates at mesophilic and thermophilic conditions (Adl et al 2015;Janke et al 2015;Kang et al 2014), very few studies (Saady and Massé 2013) have been published on psychrophilic anaerobic digestion of cellulose and hemicellulose. Little is known about the culture kinetics when integrating low temperature with feeding lignocellulose substrate.…”