Abstract: “Biogas can be used directly to generate power, but the combustion is poor due to the presence of CO2. This paper presents the micro bubble dissolving technology as an alternative approach for CO2 removal. The system used the micro bubble swirl-type generator to dissolved CO2 in water. The pH meter used for study the carbon dioxide dissolved in water from micro bubble swirl-type generator with different total gas flow rate. The results showed that the change in pH decreases with increasing of total gas flow rate, but after 15 minute are stable levels that indicate the steady state of the system, water saturated with CO2. The micro bubble dissolving technology can use to remove CO2.”

Keywords: Biogas, Micro bubble, Dissolved CO