Implementation of a cattle manure biodigester for the production of gas for single family use

Abstract

Cattle manure has an energy potential that is unknown to farmers. In the rural areas of the city of Latacunga - Ecuador there are inconveniences for the transport of the G.L. (Liquefied Petroleum Gas). For this reason, this document shows the implementation of a biodigester to obtain biogas for domestic use at Hacienda Terán located in La Dolorosa Belisario Quevedo, the cattle manure is analyzed, obtaining 13.7% of total solids. In addition, it was established that 100 kg of mixture with the quantification of manure in a period of 12 days. In order to maintain the elevated temperature a greenhouse was built obtaining an average of 28.48°C in a time for the generation of biogas in 30 days and a minimum temperature of 22.7°C. Temperatures that are within the limits established for the generation of biogas. With these parameters. a 4.25 m3 bio-bag was dimensioned generating a production of 1.1 m3 of gas that satisfies the family use of 0.7 m3 Biogas and G.L.P. firing tests were carried out up to 80° C obtaining a calorific value of 4800 kcal. per m3.