Economic efficiency of processing biodegradable waste in dry anaerobic digestion and composting technologies under the Polish market conditions

An economic analysis of the dry anaerobic digestion (AD) in Poland operated with various input streams has been presented, ranging from the organic fraction of residual waste to biowaste from various sources. The shares of individual costs and revenues change significantly in these operation options. Sensitivity analyses, performed under assumption of four different market conditions showed that the profitability of AD plants is unpredictable. Assuming the current legal situation, the final profit or loss of the digestion technology strongly depends on the prices of energy. The final economic output for the anaerobic digestion was compared to the output of an aerobic stabilization process.