Title:
Anaerobic Digestion Of Municipal Solid Waste, Biowaste & Commercial Wastes - Examples Of: 1) Successful Revamping Of Existing Plants 2) Co-Digestion Of Biowaste And Commercial Waste With Agricultural Residues
Author(s):
Bozano Gandolfi, P., Nosiglia, V., Vitali, G.
Document(s):
Paper
Abstract:
Anaerobic digestion (A.D.) of the organic fraction of municipal solid waste (MSW), Biowaste and Commercial waste combines the reduction of waste to be landfilled with the production of fertilizer and renewable energy, generating electrical and thermal energy by the valorization of the generated biogas. Thus, an A.D. plant can provide environmental, economical and social benefits. In case of co¬digestion with other biomasses (such as manure and agricultural substrates) further economical and process benefits can be achieved. Unfortunately waste contains impurities that, if not efficiently removed, cause to the plant heavy biological and mechanical¬hydraulic problems. Ecoparc 1 plant in Barcelona was started in 2001 and was planned to treat 300.000 t/a (250.000 t/y of MSW and 50.000 t/y of organic fraction from MSW). Mainly because of insufficient elimination of contaminant upstream, the plant never reached the expected treatment capacity, suffering high solid sedimentation in digester, pump clogging, low biogas production and high fraction to be landfilled. Biotec successfully revamped the plant by applying BTA® Hydromechanical pre treatment. Similar results have been achieved with the revamping of Cą del Bue in Verona Italy and Burgos in Spain. Castelleone ¬IT¬ co¬digestion plant started in 2010 and is authorized to treat 100.000 t/y (20.000 t/y of biowaste, 6.000 t/y of commercial residues, 6.000 t/y of agricultural substrates and 68.000 t/y of manure), generating 1.676 kWel and producing approx. 100.000 t/y of digestate, successfully used as fertilizer after proper sanitation. In this paper the above mentioned plants are presented.
Keywords:
anaerobic digestion, biogas, digestion, renewable energies, select waste
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Anaerobic digestion for biogas production
Event:
20th European Biomass Conference and Exhibition
Session:
2DV.3.31
Pages:
1468 - 1472
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-2DV.3.31
Price:
FREE
