Energy balances of biogas production from industrial wastes and energy plants
2013
Navickas, K., Aleksandras Stulginskis Univ., Akademija, Kauno reg. (Lithuania) | Venslauskas, K., Aleksandras Stulginskis Univ., Akademija, Kauno reg. (Lithuania) | Petrauskas, A., Aleksandras Stulginskis Univ., Akademija, Kauno reg. (Lithuania) | Zuperka, V., Aleksandras Stulginskis Univ., Akademija, Kauno reg. (Lithuania) | Nekrosius, A., Aleksandras Stulginskis Univ., Akademija, Kauno reg. (Lithuania)
The energy balance of biogas production from industrial wastes and energy plants has been investigated during this research. Conversion efficiency of digestion of industrial wastes and energy plants to biogas by using different temperatures in the range from 52 to 57 ºC has been evaluated. The variation of digestion temperatures shows the difference in the total energy input from 1563 MJ·tE-1 to 1666 MJ·tE-1. Energy consumption for co-digestion of industrial wastes and energy plants in biogas plant was evaluated in theoretical research. The model results show that the rise of temperature (from 52 to 57 ºC) for anaerobic digestion reduces the efficiency of the biogas plant. Useful energy obtained after digestion at different temperatures varies in the range of 3822 MJ·tE-1 to 6089 MJ·tE-1. The energy conversion ratio ranged from 3.2 at 57 ºC to 4.9 at 52 ºC.
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