title: Short mechanical biological treatment of municipal solid waste allows landfill impact reduction saving waste energy content.
abstract: The aim of this work was to evaluate the effects of full scale MBT process (28 d) in removing inhibition condition for successive biogas (ABP) production in landfill and in reducing total waste impact. For this purpose the organic fraction of MSW was treated in a full-scale MBT plant and successively incubated vs. untreated waste, in simulated landfills for one year. Results showed that untreated landfilled-waste gave a total ABP reduction that was null. On the contrary MBT process reduced ABP of 44%, but successive incubation for one year in landfill gave a total ABP reduction of 86%. This ABP reduction corresponded to a MBT process of 22 weeks length, according to the predictive regression developed for ABP reduction vs. MBT-time. Therefore short MBT allowed reducing landfill impact, preserving energy content (ABP) to be produced successively by bioreactor technology since pre-treatment avoided process inhibition because of partial waste biostabilization.
authors.affiliation: RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy. barbara.scaglia@unimi.it
authors.forename: Barbara
authors.initials: B
authors.lastname: Scaglia
authors.forename: Silvia
authors.initials: S
authors.lastname: Salati
authors.forename: Alessandra
authors.initials: A
authors.lastname: Di Gregorio
authors.forename: Alberto
authors.initials: A
authors.lastname: Carrera
authors.forename: Fulvia
authors.initials: F
authors.lastname: Tambone
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Adani
mesh_terms: D000693:Anaerobiosis; D019149:Bioreactors; D012037:Refuse Disposal; D064091:Waste Disposal Facilities
keywords: Anaerobic biogasification potential; Landfill impacts; Mechanical–biological treatment; Municipal solid waste