title: Full scale treatment of ASR wastes in a modified rotary kiln.
abstract: A plant, designed for the thermo-valorisation of tyres, was specifically modified in order to treat Automobile Shredder Residue (ASR). Results from two full-scale combustion experiments, carried out on large ASR feeding lots (thousands of tons) indicate the proposed technology as a potential route to help the fulfilling of impending 95% reuse and recovery target set by the End of life Vehicle (ELV) Directive (January 2015). The paper describes the main operational troubleshot occurred during the first experiment (emissions at the stack out of regulatory limits and problems of clogging on the conveyer belt) and the consequent upgrading solutions (pre-treatment, introduction of waste double low-flow screw feeder and a cyclone prior to the main fan, modification of rotatory kiln inlet) adopted to allow, during the second long-term experiment, a continuous basis operation of the plant in full compliance with the discharge limit to the atmosphere. Characterization of both ASR and combustion residues allowed to quantify a 18% of combustion residues as not dangerous waste while only the 2% as hazardous one. A pre-treatment for the reduction of fines in the ASR was recommended in order to achieve the required energy recovery efficiency.
authors.affiliation: Department of Industrial Engineering (DII), University of Catania, Viale A. Doria 6, I-95125 Catania, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Mancini
authors.affiliation: Department of Civil, Construction and Environmental Engineering (DICEA), Sapienza University of Rome, Via Eudossiana 18, I-00184 Rome, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Viotti
authors.affiliation: ENEA - Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Casaccia Research Centre, Via Anguillarese 301, 00123 Rome, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Luciano
authors.affiliation: Department of Biotechnologies and Life Sciences, Insubria University, Via G.B. Vico 46, Varese, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Raboni
authors.affiliation: Department of Applied Science and Technology (DISAT), Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy. Electronic address: debora.fino@polito.it.
authors.forename: D
authors.initials: D
authors.lastname: Fino
mesh_terms: D001336:Automobiles; D017745:Incineration; D007220:Industrial Waste / Q000032:analysis*; D059027:Recycling / Q000379:methods*; D018505:Waste Management / Q000379:methods*
chemical_list: D007220:Industrial Waste
keywords: Automobile Shredder Residue; Car fluff; Combustion; Energy recovery; Thermal treatment