This is an open access article distributed under the CC BY 4.0
Anaerobic digestion is a natural process of organic material degradation by different kinds of microorganisms in the
absence of oxygen. This process is used for industrial purpose to manage waste streams or to produce biogas. It
gives a major contribution in reduction of harmful effects of organic waste disposal to the environment. The aim of
agricultural waste pretreatment in biogas production is to decrease the retention time, improve utilization of raw material
and improve the overall productivity and energy efficiency of the production process. In this paper the effects
of combined chemical and mechanical pretreatment of corn straw biomass on biogas yield during anaerobic digestion
of the feedstock were analyzed. The impact of pretreatment and process parameters in biogas production was
analyzed by process simulation using the software SuperPro Designer. Using this tool, it was shown that alkaline
pretreatment leads to an decrease of degradation time along with an increase in biogas yield.
Authors gratefully acknowledge Goran Mitrovic, B.Sc,
Biogas Power Technology, Kikinda and Karolj Damjanov,
B.Sc, Ekotehna, Kikinda, for experimental data.
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