Effect of Biological Pretreatment on Initial ecomposability for Pennisetum purpureum Pak Chong 1
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Abstract
The research aims to study the effects of biomass lignocellulose as a material contained in nature. It is mainly composed of cellulose, hemicellulose, and lignin, an organic compound of carbohydrates that is the main component in plant cells. However, the physical structure and chemical composition of the lignocellulose material is complex and crystalline. Therefore, the normalization of lignocellulose materials is necessary for the biogas production process to increase biogas production efficiency. They were mixed with cow manure under temperature conditions (37 and 55 ºC) and filling air rate (0, 0.18 and 0.36 L/min) on the preliminary conditioning efficiency of Napier Pak Chong 1. According to the study, the temperature was the most important factor in the effectiveness of the preliminary conditioning, at 55 ºC, the adding rate of 0.36 L/min. The efficiency of the preliminary conditioning of Napier Pak Chong 1 grass temperature was an important factor for the efficiency of the primary conditioning. The temperature of 55 ºC resulted in the highest percentage of cellulose. The value increased by 12.4 %, and the proportion of lignin decreased by 15.6 %, yielding sugar to 17.11 %. The methane production potential of Napier Pak Chong 1 grass was later studied. It was found that in the experiment at 55 ºC and an aeration rate of 0.36 L/min, the highest potential of methane production was 0.216 Nm3CH4/gVSadded. This increased 1.9 times compared to the methane production potential of Napier Pak Chong 1 untreated (0.112 Nm3CH4/gVSadded).
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References
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