IIARD International Institute of Academic Research and Development

RESEARCH JOURNAL OF PURE SCIENCE AND TECHNOLOGY (RJPST )

E-ISSN 2579-0536
P-ISSN 2695-2696
VOL. 6 NO. 3 2023
DOI: https://doi.org/10.56201/rjpst.v6.no3.2023.pg8.22

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Effect of Alkaline Pretreatment on the Mophology of Biomass Prior To Anaerobic Digestion

Shittu Monsurat Olabisi Atunnise, Abubakar Umar Birnin-Yauri, Cosmos Moki Elinge and Umar MuhammedKangiwa

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Abstract

Anaerobic digestion using lignocellulosic materials as the substrate is a cost-effective strategy for biomethane production, which provides great potential to convert biomass into renewable energy and organic fertilizer. However, the recalcitrance of native lignocellulosic biomass makes it resistant to microbial hydrolysis, which reduces the bioconversion efficiency of organic matter into biogas. As a measure to alter the structure of lignocelluloses biomass to make the holocellulose suitable for bio conversion, this study uses 5% w/v NaOH solution to delignify groundnut shell and sugarcane bagasse to alter the morphology of the biomass prior tanaerobic digestion. The characteristics of the treated and untreated samples were analysed via FTIR and Thermogravimetric analyses. The findings of the study for all the essential parameters, using standard methods, before and after the alkalization process, showed that, pretreatment of groundnut shell and sugarcane bagasse with 5% wt/v NaOH can effectively reduce the lignin and hemicellulose content and increase the cellulose content. In conclusion, the de-lignified biomass have greater potential for biogas generation than the untreated samples. The study recommend the use of groundnut shell and sugarcane bagasse for biogas production as a worthwhile venture, considering the zero cost and the substrates are best efficient when pretreated with NaOH.

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