Biostabilization of municipal solid waste

A mechanical-biological process for municipal solid waste (MSW) treatment was monitored for one year. Mechanical pre-treatment provided two fractions. The oversize fraction (Ø>50 mm) (yield of 600 gkg-1ww) (46 Mgday-1) was used for refuse derived fuel production, after undergoing a mechanical refining processes, because of low moisture content (200-250 gkg-1) and high calorific value (2500-2800 kcalkgww -1). The undersize fraction (Ø<50 mm) (yield 400 gkg -1ww) (30 Mgday-1) contained about 800 gkg-1 of the MSW organic matter. This fraction was biologically treated using an aerobic process with an organic waste fraction from separate collection (77 Mgday -1) and recycled stabilized material (62 Mgday-1) obtained from end-product sieve (Ø