Sustainable landfilling is an innovative way of managing waste disposal plants, leading both to environmental and energy benefits. The rapidity of the anaerobic biodegradation process of the biodegradable fraction of urban waste can be improved by combining aerobic with anaerobic treatment. Aerobic pre-treatment of the waste, ranging from 15 to 60 days, together with leachate recirculation, can lead to the production of more than 170 Nm3 per tonne of Volatile Solids disposed of in the landfill. The anaerobic biodegradation process can take from 3 to 14 years, depending on some differences in landfill management. Further, the total amount of renewable electrical energy able to be recovered ranges from 42 to 44 GWh, and the biomethane loss can be reduced to less than 39% of the total production.
Energy and environmental benefits from waste management: Experimental analysis of sustainable landfilling
DI MARIA, Francesco;SORDI, ALESSIO;MICALE, CATERINA
2012
Abstract
Sustainable landfilling is an innovative way of managing waste disposal plants, leading both to environmental and energy benefits. The rapidity of the anaerobic biodegradation process of the biodegradable fraction of urban waste can be improved by combining aerobic with anaerobic treatment. Aerobic pre-treatment of the waste, ranging from 15 to 60 days, together with leachate recirculation, can lead to the production of more than 170 Nm3 per tonne of Volatile Solids disposed of in the landfill. The anaerobic biodegradation process can take from 3 to 14 years, depending on some differences in landfill management. Further, the total amount of renewable electrical energy able to be recovered ranges from 42 to 44 GWh, and the biomethane loss can be reduced to less than 39% of the total production.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
