Scenarios of Bioenergy Recovery from Organic Fraction of Residual Municipal Waste in the Marche Region (Italy)

Massimiliano Boccarossa, Martina Di Addario, Adele Folino and Fabio Tatàno
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Massimiliano Boccarossa: Waste Register Section, ARPAM—Environmental Protection Agency of the Marche Region, 61122 Pesaro, Italy
Martina Di Addario: Section ChEM—Chemistry, Environment, and Materials, DiSPeA—Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, 61029 Urbino, Italy
Adele Folino: Section ChEM—Chemistry, Environment, and Materials, DiSPeA—Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, 61029 Urbino, Italy
Fabio Tatàno: Section ChEM—Chemistry, Environment, and Materials, DiSPeA—Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, 61029 Urbino, Italy

Sustainability, 2021, vol. 13, issue 20, 1-20

Abstract: In the Marche Region (Central Italy), the residual municipal waste (RMW) is commonly processed in mechanical biological treatment (MBT) systems. In these systems, following a first mechanical selection, the undersize organic fraction from RMW (us-OFRMW) undergoes a partial aerobic biological treatment before being landfilled as a biostabilised fraction (bios-OFRMW) without dedicated energy or material recovery. Alternative us-OFRMW management scenarios have been elaborated for this region, at both present (reference year 2019) and future (reference year 2035) time bases. In the first scenario, the potential bioenergy recovery through anaerobic digestion (AD) from the us-OFRMW was evaluated. The second scenario aimed at evaluating the residual methane generation expected from the bios-OFRMW once landfilled, thus contributing also to the potential environmental impact connected with landfill gas (LFG) diffuse emissions from the regional landfills. The diversion to AD, at the present time, would allow a potential bioenergy recovery from the us-OFRMW equal to 4.35 MW el , while the alternative scenario involves greenhouse gas (GHG) emissions equal to 195 kg CO 2 eq. per ton of deposited bios-OFRMW. In the future, the decreased amount of the us-OFRMW addressed to AD would still contribute with a potential bioenergy recovery of 3.47 MW el .

Keywords: anaerobic digestion; bioenergy recovery; biostabilisation; environmental planning; landfill; mechanical biological treatment; methane emission; organic fraction; region; residual municipal waste (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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