Use of Biogas from Swine Manure as a Renewable Energy to Produce Electricity in Community of Highland Development Project Using the Royal Project Model
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Abstract
This study aimed to apply biogas with a 7.5 hp engine motor and 3 kW generator for producing electricity to investigate the optimum biogas generator in 4 highland farms of Highland Development Project Using Royal Project Model. The first 3 farmers lived in Mae Song sub-district, Tha Song Yang district, Tak province, while the forth farmer lived in Mae Sam Laep sub-district, Sop Moei district, Mae Hong Son province. The result revealed that the biogas which was produced from 8, 12, 8+8 and 16 m3 biogas unit in 4 highland household farms contained 755.00, 894.00, 836.67 and 1,493.33 ppm hydrogen sulfide (H2S), respectively. The filter using granular ferric hydroxide can reduce 99.73-99.91% of H2S from biogas. The biogas generator can produced electricity 1.84, 2.23, 3.14 and 4.01 hours/day. It helped farmers to save electricity charge 76.63, 96.31, 111.34 and 130.83 Baht/month, respectively. These data varied significantly according to the size of the digester (P<0.01). In conclusion, the biogas can be produced even at the attitude above 1,000 m MSL. It can be an alternative energy for electricity in highland farms. The satisfaction of the farmers to the developed equipment was evaluated by scoring. They were highly satisfied and gave the score rated 4.99 out of 5.
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References
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