M. Raboni

Application of multi-stage biofilter pilot plants to remove odor and VOCs from industrial activities air emissions

This study includes trials that were conducted to evaluate the performances of two biofiltration pilot plants for industrial applications. The first experimentation analyzed the removal of high concentrations of Volatile Organic Compounds (VOCs) from discontinuous gas emissions resulting from the flexographic printing section of a plastic packaging production factory. The adopted layout for the experimentation was a multi-stage plant filled with two different packing materials (shells and peat). The second trial examined the biofiltration of exhaust air from a Solid Recovered Fuel (SRF) drying process treating the dry fraction of municipal solid waste (MSW). Such exhaust streams are characterized by low VOCs content but high odorous compounds, such as H2S and NH3. The pilot plant used for the experimentation had two stages that used shells as packing material. In both cases, the multi-stage biofilter performances indicate that the solutions are suitable as well as applicable for use in industrial plants.

EFFECTIVENESS OF A MULTI-STAGE BIOFILTER APPROACH AT PILOT SCALE TO REMOVE ODOR AND VOCs

This paper describes an experience conducted to evaluate the performances of a multi-stage approach using a biofiltration process applied to treat exhaust air. In particular, the experimentation was carried out using a pilot plant for the biofiltration of exhaust air from a solid recovered fuel drying process treating the dry fraction of municipal solid waste. Such exhaust streams are characterized by low concentrations of volatile organic compounds and high presence of odorous compounds, such as H 2 S and NH 3 . The adopted layout for the experimentation was a multi-stage plant. Each of the two stages (biotrickling filters) used seashells as packing material. In particular, the choice of seashell was defined after the evaluation of the hydrody namic behavior of different packing materials at the same running conditions. Moreover, some velocity measurements were conducted with the aim at improving the geometry of the reactors and the fan sizing. The multi-stage biofiltration performances indicate that the solutions are suitable as well as applicable for use in industrial plants.

Study of a Nimble Model to Evaluate the Effects of a Gasoline Fire in a Road Tunnel

Study of a Nimble Model to Evaluate the Effects of a Gasoline Fire in a Road Tunnel Carlo Sala Cattaneo, Silvia Tavelli, Marco Derudi, Renato Rota, Massimo Raboni, Vincenzo Torretta, Sabrina Copelli Politecnico di Milano Dip. di Chimica, Materiali e Ingegneria Chimica “G. Natta” Via Mancinelli 7 20131 Milano Italy Università degli Studi dell’Insubria Dip. di Scienza e Alta Tecnologia Via G.B. Vico 46 21100 Varese Italy sabrina.copelli@uninsubria.it

Implementation of an integrated stationary - Non steady state Gaussian modeling system to simulate contaminants dispersion into the atmosphere

Implementation of an Integrated Stationary – Non Steady State Gaussian Modeling System to Simulate Contaminants Dispersion into the Atmosphere Massimo Raboni, Sabrina Copelli*, Mattia Tigoli, Vincenzo Torretta, Giordano Urbini, Giuseppe Nano Dipartimento di Chimica, Materiali e Ingegneria Chimica “G. Natta” Politecnico di Milanovia Mancinelli, 7 – 20133 – Milano – Italy Dipartimento di Scienza e Alta Tecnologia Università degli Studi dell’Insubria via Vico, 46 – 21100 – Varese – Italy Dipartimento di Biotecnologie e Scienze della Vita Università degli Studi dell’Insubria via Dunant, 3 – 21100 – Varese – Italy