Dioxin production during the thermal treatment of meat and bone meal residues.
Safe animal by-product disposal is a priority target as a result of the Bovine Spongiform Encephalopathy crisis in the European beef industry. One such disposal option is the incineration of by-product material such as meat and bone meal residues (MBM) for the purpose of energy recovery. Although currently applied, the thermal decomposition of MBM wastes has not been scientifically studied until now. A series of experiments has been performed to study the thermal behavior of MBM both in inert (N2) and reactive atmosphere (air), both by thermogravimetry and in a horizontal laboratory furnace. As a general trend, MBM gives low PCDD/F values, compared with incineration of other wastes. Maximum yield of pollutants is observed at a nominal temperature between 700 and 800 degrees C.
Conesa
Juan A
JA
Department of Chemical Engineering, University of Alicante, Ap. 99, E-03080 Alicante, Spain. ja.conesa@ua.es
Fullana
Andres
A
Font
Rafael
R
D000388:Air; D001688:Biological Products; D004147:Dioxins / Q000138:chemical synthesis*; D008401:Gas Chromatography-Mass Spectrometry; D017745:Incineration; D008460:Meat; D008903:Minerals; D009584:Nitrogen; D012037:Refuse Disposal / Q000379:methods*; D013052:Spectrometry, X-Ray Emission; D013818:Thermogravimetry
D001688:Biological Products; D004147:Dioxins; D008903:Minerals; D009584:Nitrogen; C027762:bone meal