Farm waste is one of the potential causes for environmental pollution if it is not handled properly. One effort is to utilize livestock waste in the form of animal waste, as raw material, for the biogas industry. The purpose of this study was to determine the appropriate type of biogas reactor and feasibility of cow manure agroindustrial biogas development in acattle fattening industries in South Lampung Regency in terms of technical and technological aspect. The results showed that based on

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... exponential comparison method the appropriate type of biogas reactor was Modified Lagoon Anaerobic Reactor Cover (CoLAR) with an MPE value of 5,701. The Modified CoLAR biogas reactor with capacity of 198,000 kg.day -1 cow manure would produce 1,663.2 m 3. .day - of biogas that equivalent to 1,093 m3.day -1 of methane. Based on these results, it was known that the potential of electrical energy produced by the installation of biogaswas 5,136 kWh and 214 kW of electricity power.