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Numerical Analysis of the Anaerobic Co-Digestion of the Organic Fraction from Municipal Solid Waste and Wastewater: Prediction of the Possible Performances at Olmeto Plant in Perugia (Italy)

Department of Hydraulic, Transportation and Roads, University of Rome ‘La Sapienza’, Rome, Italy paolo.viotti{at}uniromal.it

Paolo Di Genova

Department of Hydraulic, Transportation and Roads, University of Rome ‘La Sapienza’, Rome, Italy

Francesca Falcioli

Department of Hydraulic, Transportation and Roads, University of Rome ‘La Sapienza’, Rome, Italy

Anaerobic digestion is mainly used for sewage sludge stabilization and for treatment of waste that has a high organic content. It also represents a powerful method for obtaining energy by means of natural gas production. Co-digestion particularly combines different organic substrates to generate a homogeneous mixture as input to the anaerobic reactor in order to increase process performance. Reactions kinetics and knowledge of process analysis represent the keys for good planning and correct management. In this paper a model to simulate the main reactions involved in anaerobic co-digestion is presented. The model was created to analyse the possible performance of the treatment plant in Olmeto, Marsciano (Perugia) in Italy. The plant is still in an experimental phase with regard to the co-digestion process and numerical simulations represent a useful tool during development of the correct management procedures for the operational phase and a good methodoly for addressing further pilot plant experiments.

Key Words: Anaerobic digestion • wastewater biological treatment • municipal solid wastes • co-digestion • numerical simulation • wmr 692–3

Waste Management & Research, Vol. 22, No. 2, 115-128 (2004)
DOI: 10.1177/0734242X04043892


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