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Production of Biogas from Maize Chaff and Poultry Waste, 2021

ABSTRACT Nigeria, as a developing country depends heavily on wood fuel as a primary source of fue... more ABSTRACT
Nigeria, as a developing country depends heavily on wood fuel as a primary source of fuel energy supply with crude oil and water power making up the rest. The limited availability of fossil fuels and the growing awareness of the detrimental environmental consequences resulting from greenhouse gas emissions have reinforced the importance of crop residues as an energy resource in developed and developing countries. Biogas generation has been seen as a by-product of anaerobic digestion of organic waste. Having proven to be a practicable and promising technology, it has been a very successful, reliable, and clean source of energy when proper management programme is followed.
Fourteen kilograms (14kg) of poultry litters and nine kilograms (9kg) of maize chaff were accurately weighed, mixed, and fed into the digester to give a ratio of 3:2 by mass. These substrates were then mixed with 47 litres of distilled water in the digester to give waste to water ratio of 1:2. The initial pH of the mixture was determined, recorded, and the digester will be completely sealed to maintain anaerobic condition. The digester and its content were connected to the gas delivery setup. The contents of the digester were continuously stirred three times per day, as the digester temperature was measured, and maintained between 27°C to 36°C. After 42 days (6 weeks), the gas collected in the tyre tube was taken to the laboratory for analysis to determine the approximate composition of the generated gas.
The analysis of the biogas produced showed that it contained 56.31% methane, 33.49% CO2, and other trace components. It was discovered that the gas produced can be used for both commercial and domestic purposes. The result showed that methane was the highest gas produced. It was also noted that as the substrates reach the end of hydraulic retention time, microbial activity reduces significantly.

Production of Biogas from Maize Chaff and Poultry Waste, 2021

ABSTRACT Nigeria, as a developing country depends heavily on wood fuel as a primary source of fue... more ABSTRACT
Nigeria, as a developing country depends heavily on wood fuel as a primary source of fuel energy supply with crude oil and water power making up the rest. The limited availability of fossil fuels and the growing awareness of the detrimental environmental consequences resulting from greenhouse gas emissions have reinforced the importance of crop residues as an energy resource in developed and developing countries. Biogas generation has been seen as a by-product of anaerobic digestion of organic waste. Having proven to be a practicable and promising technology, it has been a very successful, reliable, and clean source of energy when proper management programme is followed.
Fourteen kilograms (14kg) of poultry litters and nine kilograms (9kg) of maize chaff were accurately weighed, mixed, and fed into the digester to give a ratio of 3:2 by mass. These substrates were then mixed with 47 litres of distilled water in the digester to give waste to water ratio of 1:2. The initial pH of the mixture was determined, recorded, and the digester will be completely sealed to maintain anaerobic condition. The digester and its content were connected to the gas delivery setup. The contents of the digester were continuously stirred three times per day, as the digester temperature was measured, and maintained between 27°C to 36°C. After 42 days (6 weeks), the gas collected in the tyre tube was taken to the laboratory for analysis to determine the approximate composition of the generated gas.
The analysis of the biogas produced showed that it contained 56.31% methane, 33.49% CO2, and other trace components. It was discovered that the gas produced can be used for both commercial and domestic purposes. The result showed that methane was the highest gas produced. It was also noted that as the substrates reach the end of hydraulic retention time, microbial activity reduces significantly.