Impact on Biogas Production by Using Inoculums with the Relevant Substrate

EDMOND DEMOLLARI1*, ETLEVA JOJIC1, VALDETE VORPSI1, ERTA DODONA1, ENKELEIDA SALLAKU2, NDOC VATA1

1Department of Plant Sciences and Technologies, Agriculture University of Tirana, Tirana, Albania

2Department of Animal Production, Agricultural University of Tirana, Tirana, Albania

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Abstract

Biomass is one of the renewable sources of bioenergy, capable of contributing significantly to the future global energy supply [18]. The anaerobic digestion process involving biological conversions in which a consortium of interdependent organisms responsible for the degradation of complex organic matter [2]. It is important to evaluate appropriate techniques and / or technologies for effective energy recovery from waste. The effect of inoculums on the substrate ratio (I / S) in biogas production was investigated by changing the amount of substrate added to the inoculums. Process for the “production” of inoculate, the experiment was selected case, 14 days, 50°C, and constituted BATCH system, chicken waste, cattle waste, corn silage and corn (corn – without milled). Biogas production was the final step of the experiment. The “Batch Constant Temperature System” system used ration: 25gr. inoculums: 0,5gr. substrate. In the environmental experiment, the time period was 69 days (i.e. about 9 weeks). From this, it was noted that, despite the prolonged time, the maximum reached value was 68.33% CH4, while in laboratory conditions was ~70% CH4. The maximum value of biomethane produced reached for 56 days, while in laboratory conditions it reaches for 25-28 days.

Keywords: Biomass, inoculums, biomethane, substrate, biogas.

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