Evaluasi efektifitas effective microorganism-4 (EM-4) dalam menaikkan volume produksi biogas
Journal Title: Dinamika Teknik Mesin - Year 2018, Vol 8, Issue 1
Abstract
Anaerobic digestion process of cow dung was observed over 30 days with addition of effective microorganism – 4 in regard to improve biogas production volume. Temperature for biogas production was kept constant and was conducted at mesophilic mode. It was found that EM-4 addition effectively increased the biogas yields production. The improvement of biogas volume was recorded as high as 87.8% which was achieved in 10% v/v EM-4 addition. However, the solution concentration should be limited in certain amount. With these experiments, the results showed that the addition of EM-4 into the digester resulted in a gradual decrease in the volume of biogas. The most influential factor of the result may be attributed by the alteration of digestate pH from netral to more acidic. This acidic condition hampered microorganism to do anaerobic process well.
Authors and Affiliations
Hendry S. Tira, S. Syahrul, G. Umbara
Keywords
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- EP ID EP307543
- DOI 10.29303/dtm.v8i1.40
- Views 87
- Downloads 0
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