Effect of Acid Pretreatment on Biogas Production during Anaerobic Digestion
Abstract
Due to the increase in demand for energy due to population increase and great economic development, and because the energy represented by petroleum cannot last forever, it is necessary to find alternative energy sources for non-renewable energy. Therefore, most countries of the world turned to renewable energy, including biogas production through anaerobic systems, and corn is a renewable resource. It is highly relied upon to contribute to its vital energy supply.
Acid pretreatment before anaerobic digestion greatly helps to increase biogas production. The present work studied the effect of four times of acid treatment with acetic acid on the used substrate (maize) and evaluated its effectiveness on digestion and studying carbon dioxide and methane gas concentrations during the fermentation period, which amounted to 45 days. All results are presented in clear curves for the purpose of facilitating the study.
